diff --git a/m4/ax_boost_base.m4 b/m4/ax_boost_base.m4 index 65b3878aa..519f1c9d2 100644 --- a/m4/ax_boost_base.m4 +++ b/m4/ax_boost_base.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_boost_base.html +# https://www.gnu.org/software/autoconf-archive/ax_boost_base.html # =========================================================================== # # SYNOPSIS @@ -11,9 +11,9 @@ # Test for the Boost C++ libraries of a particular version (or newer) # # If no path to the installed boost library is given the macro searchs -# under /usr, /usr/local, /usr/local/opt/boost, /opt and /opt/local and -# evaluates the $BOOST_ROOT environment variable. Further documentation -# is available at . +# under /usr, /usr/local, /opt and /opt/local and evaluates the +# $BOOST_ROOT environment variable. Further documentation is available at +# . # # This macro calls: # @@ -27,14 +27,21 @@ # # Copyright (c) 2008 Thomas Porschberg # Copyright (c) 2009 Peter Adolphs -# Copyright (c) 2014 Eric Voskuil # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. This file is offered as-is, without any # warranty. -#serial 23 (?) +#serial 49 + +# example boost program (need to pass version) +m4_define([_AX_BOOST_BASE_PROGRAM], + [AC_LANG_PROGRAM([[ +#include +]],[[ +(void) ((void)sizeof(char[1 - 2*!!((BOOST_VERSION) < ($1))])); +]])]) AC_DEFUN([AX_BOOST_BASE], [ @@ -45,101 +52,123 @@ AC_ARG_WITH([boost], or disable it (ARG=no) @<:@ARG=yes@:>@ ])], [ - if test "$withval" = "no"; then - want_boost="no" - elif test "$withval" = "yes"; then - want_boost="yes" - ac_boost_path="" - else - want_boost="yes" - ac_boost_path="$withval" - fi + AS_CASE([$withval], + [no],[want_boost="no";_AX_BOOST_BASE_boost_path=""], + [yes],[want_boost="yes";_AX_BOOST_BASE_boost_path=""], + [want_boost="yes";_AX_BOOST_BASE_boost_path="$withval"]) ], [want_boost="yes"]) AC_ARG_WITH([boost-libdir], - AS_HELP_STRING([--with-boost-libdir=LIB_DIR], - [Force given directory for boost libraries. Note that this will override library path detection, so use this parameter only if default library detection fails and you know exactly where your boost libraries are located.]), - [ - if test -d "$withval" - then - ac_boost_lib_path="$withval" - else - AC_MSG_ERROR(--with-boost-libdir expected directory name) - fi - ], - [ac_boost_lib_path=""] -) + [AS_HELP_STRING([--with-boost-libdir=LIB_DIR], + [Force given directory for boost libraries. + Note that this will override library path detection, + so use this parameter only if default library detection fails + and you know exactly where your boost libraries are located.])], + [ + AS_IF([test -d "$withval"], + [_AX_BOOST_BASE_boost_lib_path="$withval"], + [AC_MSG_ERROR([--with-boost-libdir expected directory name])]) + ], + [_AX_BOOST_BASE_boost_lib_path=""]) -if test "x$want_boost" = "xyes"; then - boost_lib_version_req=ifelse([$1], ,1.20.0,$1) - boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([[0-9]]*\.[[0-9]]*\)'` - boost_lib_version_req_major=`expr $boost_lib_version_req : '\([[0-9]]*\)'` - boost_lib_version_req_minor=`expr $boost_lib_version_req : '[[0-9]]*\.\([[0-9]]*\)'` - boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'` - if test "x$boost_lib_version_req_sub_minor" = "x" ; then - boost_lib_version_req_sub_minor="0" - fi - WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+ $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor` - AC_MSG_CHECKING(for boostlib >= $boost_lib_version_req) +BOOST_LDFLAGS="" +BOOST_CPPFLAGS="" +AS_IF([test "x$want_boost" = "xyes"], + [_AX_BOOST_BASE_RUNDETECT([$1],[$2],[$3])]) +AC_SUBST(BOOST_CPPFLAGS) +AC_SUBST(BOOST_LDFLAGS) +]) + + +# convert a version string in $2 to numeric and affect to polymorphic var $1 +AC_DEFUN([_AX_BOOST_BASE_TONUMERICVERSION],[ + AS_IF([test "x$2" = "x"],[_AX_BOOST_BASE_TONUMERICVERSION_req="1.20.0"],[_AX_BOOST_BASE_TONUMERICVERSION_req="$2"]) + _AX_BOOST_BASE_TONUMERICVERSION_req_shorten=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '\([[0-9]]*\.[[0-9]]*\)'` + _AX_BOOST_BASE_TONUMERICVERSION_req_major=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '\([[0-9]]*\)'` + AS_IF([test "x$_AX_BOOST_BASE_TONUMERICVERSION_req_major" = "x"], + [AC_MSG_ERROR([You should at least specify libboost major version])]) + _AX_BOOST_BASE_TONUMERICVERSION_req_minor=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '[[0-9]]*\.\([[0-9]]*\)'` + AS_IF([test "x$_AX_BOOST_BASE_TONUMERICVERSION_req_minor" = "x"], + [_AX_BOOST_BASE_TONUMERICVERSION_req_minor="0"]) + _AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'` + AS_IF([test "X$_AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor" = "X"], + [_AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor="0"]) + _AX_BOOST_BASE_TONUMERICVERSION_RET=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req_major \* 100000 \+ $_AX_BOOST_BASE_TONUMERICVERSION_req_minor \* 100 \+ $_AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor` + AS_VAR_SET($1,$_AX_BOOST_BASE_TONUMERICVERSION_RET) +]) + +dnl Run the detection of boost should be run only if $want_boost +AC_DEFUN([_AX_BOOST_BASE_RUNDETECT],[ + _AX_BOOST_BASE_TONUMERICVERSION(WANT_BOOST_VERSION,[$1]) succeeded=no + + AC_REQUIRE([AC_CANONICAL_HOST]) dnl On 64-bit systems check for system libraries in both lib64 and lib. dnl The former is specified by FHS, but e.g. Debian does not adhere to dnl this (as it rises problems for generic multi-arch support). dnl The last entry in the list is chosen by default when no libraries dnl are found, e.g. when only header-only libraries are installed! - libsubdirs="lib" - ax_arch=`uname -m` - case $ax_arch in - x86_64|ppc64|s390x|sparc64|aarch64) - libsubdirs="lib64 lib lib64" - ;; - esac + AS_CASE([${host_cpu}], + [x86_64],[libsubdirs="lib64 libx32 lib lib64"], + [mips*64*],[libsubdirs="lib64 lib32 lib lib64"], + [ppc64|powerpc64|s390x|sparc64|aarch64|ppc64le|powerpc64le|riscv64|e2k],[libsubdirs="lib64 lib lib64"], + [libsubdirs="lib"] + ) dnl allow for real multi-arch paths e.g. /usr/lib/x86_64-linux-gnu. Give dnl them priority over the other paths since, if libs are found there, they dnl are almost assuredly the ones desired. - AC_REQUIRE([AC_CANONICAL_HOST]) - libsubdirs="lib/${host_cpu}-${host_os} $libsubdirs" - - case ${host_cpu} in - i?86) - libsubdirs="lib/i386-${host_os} $libsubdirs" - ;; - esac + AS_CASE([${host_cpu}], + [i?86],[multiarch_libsubdir="lib/i386-${host_os}"], + [armv7l],[multiarch_libsubdir="lib/arm-${host_os}"], + [multiarch_libsubdir="lib/${host_cpu}-${host_os}"] + ) dnl first we check the system location for boost libraries dnl this location ist chosen if boost libraries are installed with the --layout=system option dnl or if you install boost with RPM - if test "$ac_boost_path" != ""; then - BOOST_CPPFLAGS="-I$ac_boost_path/include" - for ac_boost_path_tmp in $libsubdirs; do - if test -d "$ac_boost_path"/"$ac_boost_path_tmp" ; then - BOOST_LDFLAGS="-L$ac_boost_path/$ac_boost_path_tmp" - break - fi - done - elif test "$cross_compiling" != yes; then - for ac_boost_path_tmp in /usr /usr/local /usr/local/opt/boost /opt /opt/local ; do - if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then - for libsubdir in $libsubdirs ; do - if ls "$ac_boost_path_tmp/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi + AS_IF([test "x$_AX_BOOST_BASE_boost_path" != "x"],[ + AC_MSG_CHECKING([for boostlib >= $1 ($WANT_BOOST_VERSION) includes in "$_AX_BOOST_BASE_boost_path/include"]) + AS_IF([test -d "$_AX_BOOST_BASE_boost_path/include" && test -r "$_AX_BOOST_BASE_boost_path/include"],[ + AC_MSG_RESULT([yes]) + BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path/include" + for _AX_BOOST_BASE_boost_path_tmp in $multiarch_libsubdir $libsubdirs; do + AC_MSG_CHECKING([for boostlib >= $1 ($WANT_BOOST_VERSION) lib path in "$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp"]) + AS_IF([test -d "$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp" && test -r "$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp" ],[ + AC_MSG_RESULT([yes]) + BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp"; + break; + ], + [AC_MSG_RESULT([no])]) + done],[ + AC_MSG_RESULT([no])]) + ],[ + if test X"$cross_compiling" = Xyes; then + search_libsubdirs=$multiarch_libsubdir + else + search_libsubdirs="$multiarch_libsubdir $libsubdirs" + fi + for _AX_BOOST_BASE_boost_path_tmp in /usr /usr/local /opt /opt/local ; do + if test -d "$_AX_BOOST_BASE_boost_path_tmp/include/boost" && test -r "$_AX_BOOST_BASE_boost_path_tmp/include/boost" ; then + for libsubdir in $search_libsubdirs ; do + if ls "$_AX_BOOST_BASE_boost_path_tmp/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi done - BOOST_LDFLAGS="-L$ac_boost_path_tmp/$libsubdir" - BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include" + BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_path_tmp/$libsubdir" + BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path_tmp/include" break; fi done - fi + ]) dnl overwrite ld flags if we have required special directory with dnl --with-boost-libdir parameter - if test "$ac_boost_lib_path" != ""; then - BOOST_LDFLAGS="-L$ac_boost_lib_path" - fi + AS_IF([test "x$_AX_BOOST_BASE_boost_lib_path" != "x"], + [BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_lib_path"]) + AC_MSG_CHECKING([for boostlib >= $1 ($WANT_BOOST_VERSION)]) CPPFLAGS_SAVED="$CPPFLAGS" CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS" export CPPFLAGS @@ -150,15 +179,7 @@ if test "x$want_boost" = "xyes"; then AC_REQUIRE([AC_PROG_CXX]) AC_LANG_PUSH(C++) - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ - @%:@include - ]], [[ - #if BOOST_VERSION >= $WANT_BOOST_VERSION - // Everything is okay - #else - # error Boost version is too old - #endif - ]])],[ + AC_COMPILE_IFELSE([_AX_BOOST_BASE_PROGRAM($WANT_BOOST_VERSION)],[ AC_MSG_RESULT(yes) succeeded=yes found_system=yes @@ -170,30 +191,50 @@ if test "x$want_boost" = "xyes"; then dnl if we found no boost with system layout we search for boost libraries dnl built and installed without the --layout=system option or for a staged(not installed) version - if test "x$succeeded" != "xyes"; then + if test "x$succeeded" != "xyes" ; then + CPPFLAGS="$CPPFLAGS_SAVED" + LDFLAGS="$LDFLAGS_SAVED" + BOOST_CPPFLAGS= + if test -z "$_AX_BOOST_BASE_boost_lib_path" ; then + BOOST_LDFLAGS= + fi _version=0 - if test "$ac_boost_path" != ""; then - if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then - for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do - _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'` + if test -n "$_AX_BOOST_BASE_boost_path" ; then + if test -d "$_AX_BOOST_BASE_boost_path" && test -r "$_AX_BOOST_BASE_boost_path"; then + for i in `ls -d $_AX_BOOST_BASE_boost_path/include/boost-* 2>/dev/null`; do + _version_tmp=`echo $i | sed "s#$_AX_BOOST_BASE_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'` V_CHECK=`expr $_version_tmp \> $_version` - if test "$V_CHECK" = "1" ; then + if test "x$V_CHECK" = "x1" ; then _version=$_version_tmp fi VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'` - BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE" + BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path/include/boost-$VERSION_UNDERSCORE" done + dnl if nothing found search for layout used in Windows distributions + if test -z "$BOOST_CPPFLAGS"; then + if test -d "$_AX_BOOST_BASE_boost_path/boost" && test -r "$_AX_BOOST_BASE_boost_path/boost"; then + BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path" + fi + fi + dnl if we found something and BOOST_LDFLAGS was unset before + dnl (because "$_AX_BOOST_BASE_boost_lib_path" = ""), set it here. + if test -n "$BOOST_CPPFLAGS" && test -z "$BOOST_LDFLAGS"; then + for libsubdir in $libsubdirs ; do + if ls "$_AX_BOOST_BASE_boost_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi + done + BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_path/$libsubdir" + fi fi else - if test "$cross_compiling" != yes; then - for ac_boost_path in /usr /usr/local /usr/local/opt/boost /opt /opt/local ; do - if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then - for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do - _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'` + if test "x$cross_compiling" != "xyes" ; then + for _AX_BOOST_BASE_boost_path in /usr /usr/local /opt /opt/local ; do + if test -d "$_AX_BOOST_BASE_boost_path" && test -r "$_AX_BOOST_BASE_boost_path" ; then + for i in `ls -d $_AX_BOOST_BASE_boost_path/include/boost-* 2>/dev/null`; do + _version_tmp=`echo $i | sed "s#$_AX_BOOST_BASE_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'` V_CHECK=`expr $_version_tmp \> $_version` - if test "$V_CHECK" = "1" ; then + if test "x$V_CHECK" = "x1" ; then _version=$_version_tmp - best_path=$ac_boost_path + best_path=$_AX_BOOST_BASE_boost_path fi done fi @@ -201,7 +242,7 @@ if test "x$want_boost" = "xyes"; then VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'` BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE" - if test "$ac_boost_lib_path" = ""; then + if test -z "$_AX_BOOST_BASE_boost_lib_path" ; then for libsubdir in $libsubdirs ; do if ls "$best_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi done @@ -209,7 +250,7 @@ if test "x$want_boost" = "xyes"; then fi fi - if test "x$BOOST_ROOT" != "x"; then + if test -n "$BOOST_ROOT" ; then for libsubdir in $libsubdirs ; do if ls "$BOOST_ROOT/stage/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi done @@ -218,7 +259,7 @@ if test "x$want_boost" = "xyes"; then stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'` stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'` V_CHECK=`expr $stage_version_shorten \>\= $_version` - if test "$V_CHECK" = "1" -a "$ac_boost_lib_path" = "" ; then + if test "x$V_CHECK" = "x1" && test -z "$_AX_BOOST_BASE_boost_lib_path" ; then AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT) BOOST_CPPFLAGS="-I$BOOST_ROOT" BOOST_LDFLAGS="-L$BOOST_ROOT/stage/$libsubdir" @@ -233,15 +274,7 @@ if test "x$want_boost" = "xyes"; then export LDFLAGS AC_LANG_PUSH(C++) - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ - @%:@include - ]], [[ - #if BOOST_VERSION >= $WANT_BOOST_VERSION - // Everything is okay - #else - # error Boost version is too old - #endif - ]])],[ + AC_COMPILE_IFELSE([_AX_BOOST_BASE_PROGRAM($WANT_BOOST_VERSION)],[ AC_MSG_RESULT(yes) succeeded=yes found_system=yes @@ -250,17 +283,15 @@ if test "x$want_boost" = "xyes"; then AC_LANG_POP([C++]) fi - if test "$succeeded" != "yes" ; then - if test "$_version" = "0" ; then - AC_MSG_NOTICE([[We could not detect the boost libraries (version $boost_lib_version_req_shorten or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option. If you are sure you have boost installed, then check your version number looking in . See http://randspringer.de/boost for more documentation.]]) + if test "x$succeeded" != "xyes" ; then + if test "x$_version" = "x0" ; then + AC_MSG_NOTICE([[We could not detect the boost libraries (version $1 or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option. If you are sure you have boost installed, then check your version number looking in . See http://randspringer.de/boost for more documentation.]]) else AC_MSG_NOTICE([Your boost libraries seems to old (version $_version).]) fi # execute ACTION-IF-NOT-FOUND (if present): ifelse([$3], , :, [$3]) else - AC_SUBST(BOOST_CPPFLAGS) - AC_SUBST(BOOST_LDFLAGS) AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available]) # execute ACTION-IF-FOUND (if present): ifelse([$2], , :, [$2]) @@ -268,6 +299,5 @@ if test "x$want_boost" = "xyes"; then CPPFLAGS="$CPPFLAGS_SAVED" LDFLAGS="$LDFLAGS_SAVED" -fi ]) diff --git a/m4/ax_boost_unit_test_framework.m4 b/m4/ax_boost_unit_test_framework.m4 index 1115f5512..4cca32fcf 100644 --- a/m4/ax_boost_unit_test_framework.m4 +++ b/m4/ax_boost_unit_test_framework.m4 @@ -1,6 +1,6 @@ -# ================================================================================ -# http://www.gnu.org/software/autoconf-archive/ax_boost_unit_test_framework.html -# ================================================================================ +# ================================================================================= +# https://www.gnu.org/software/autoconf-archive/ax_boost_unit_test_framework.html +# ================================================================================= # # SYNOPSIS # @@ -29,7 +29,7 @@ # and this notice are preserved. This file is offered as-is, without any # warranty. -#serial 19 +#serial 22 AC_DEFUN([AX_BOOST_UNIT_TEST_FRAMEWORK], [ @@ -66,7 +66,7 @@ AC_DEFUN([AX_BOOST_UNIT_TEST_FRAMEWORK], [AC_LANG_PUSH([C++]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include ]], [[using boost::unit_test::test_suite; - test_suite* test= BOOST_TEST_SUITE( "Unit test example 1" ); return 0;]])], + test_suite* test= BOOST_TEST_SUITE( "Unit test example 1" ); if (test == NULL) { return 1; } else { return 0; }]])], ax_cv_boost_unit_test_framework=yes, ax_cv_boost_unit_test_framework=no) AC_LANG_POP([C++]) ]) @@ -124,7 +124,7 @@ AC_DEFUN([AX_BOOST_UNIT_TEST_FRAMEWORK], done fi if test "x$ax_lib" = "x"; then - AC_MSG_ERROR(Could not find a version of the library!) + AC_MSG_ERROR(Could not find a version of the Boost::Unit_Test_Framework library!) fi if test "x$link_unit_test_framework" != "xyes"; then AC_MSG_ERROR(Could not link against $ax_lib !) diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4 index 51df0c09a..bd753b34d 100644 --- a/m4/ax_check_compile_flag.m4 +++ b/m4/ax_check_compile_flag.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html +# https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html # =========================================================================== # # SYNOPSIS @@ -29,36 +29,15 @@ # Copyright (c) 2008 Guido U. Draheim # Copyright (c) 2011 Maarten Bosmans # -# This program is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. -#serial 3 +#serial 6 AC_DEFUN([AX_CHECK_COMPILE_FLAG], -[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX +[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS @@ -67,7 +46,7 @@ AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) -AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], +AS_VAR_IF(CACHEVAR,yes, [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl diff --git a/m4/ax_check_link_flag.m4 b/m4/ax_check_link_flag.m4 index db899ddd0..03a30ce4c 100644 --- a/m4/ax_check_link_flag.m4 +++ b/m4/ax_check_link_flag.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html +# https://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html # =========================================================================== # # SYNOPSIS @@ -29,36 +29,16 @@ # Copyright (c) 2008 Guido U. Draheim # Copyright (c) 2011 Maarten Bosmans # -# This program is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. -#serial 3 +#serial 6 AC_DEFUN([AX_CHECK_LINK_FLAG], -[AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl +[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF +AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [ ax_check_save_flags=$LDFLAGS LDFLAGS="$LDFLAGS $4 $1" @@ -66,7 +46,7 @@ AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [ [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) LDFLAGS=$ax_check_save_flags]) -AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], +AS_VAR_IF(CACHEVAR,yes, [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl diff --git a/m4/ax_check_preproc_flag.m4 b/m4/ax_check_preproc_flag.m4 index ca1d5ee2b..e43560fbd 100644 --- a/m4/ax_check_preproc_flag.m4 +++ b/m4/ax_check_preproc_flag.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_check_preproc_flag.html +# https://www.gnu.org/software/autoconf-archive/ax_check_preproc_flag.html # =========================================================================== # # SYNOPSIS @@ -29,33 +29,12 @@ # Copyright (c) 2008 Guido U. Draheim # Copyright (c) 2011 Maarten Bosmans # -# This program is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. -#serial 4 +#serial 6 AC_DEFUN([AX_CHECK_PREPROC_FLAG], [AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF diff --git a/m4/ax_cxx_compile_stdcxx.m4 b/m4/ax_cxx_compile_stdcxx.m4 new file mode 100644 index 000000000..51a35054d --- /dev/null +++ b/m4/ax_cxx_compile_stdcxx.m4 @@ -0,0 +1,1005 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional]) +# +# DESCRIPTION +# +# Check for baseline language coverage in the compiler for the specified +# version of the C++ standard. If necessary, add switches to CXX and +# CXXCPP to enable support. VERSION may be '11', '14', '17', or '20' for +# the respective C++ standard version. +# +# The second argument, if specified, indicates whether you insist on an +# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g. +# -std=c++11). If neither is specified, you get whatever works, with +# preference for no added switch, and then for an extended mode. +# +# The third argument, if specified 'mandatory' or if left unspecified, +# indicates that baseline support for the specified C++ standard is +# required and that the macro should error out if no mode with that +# support is found. If specified 'optional', then configuration proceeds +# regardless, after defining HAVE_CXX${VERSION} if and only if a +# supporting mode is found. +# +# LICENSE +# +# Copyright (c) 2008 Benjamin Kosnik +# Copyright (c) 2012 Zack Weinberg +# Copyright (c) 2013 Roy Stogner +# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov +# Copyright (c) 2015 Paul Norman +# Copyright (c) 2015 Moritz Klammler +# Copyright (c) 2016, 2018 Krzesimir Nowak +# Copyright (c) 2019 Enji Cooper +# Copyright (c) 2020 Jason Merrill +# Copyright (c) 2021 Jörn Heusipp +# +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. + +#serial 14 + +dnl This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro +dnl (serial version number 13). + +AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl + m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"], + [$1], [14], [ax_cxx_compile_alternatives="14 1y"], + [$1], [17], [ax_cxx_compile_alternatives="17 1z"], + [$1], [20], [ax_cxx_compile_alternatives="20"], + [m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl + m4_if([$2], [], [], + [$2], [ext], [], + [$2], [noext], [], + [m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX])])dnl + m4_if([$3], [], [ax_cxx_compile_cxx$1_required=true], + [$3], [mandatory], [ax_cxx_compile_cxx$1_required=true], + [$3], [optional], [ax_cxx_compile_cxx$1_required=false], + [m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])]) + AC_LANG_PUSH([C++])dnl + ac_success=no + + m4_if([$2], [], [dnl + AC_CACHE_CHECK(whether $CXX supports C++$1 features by default, + ax_cv_cxx_compile_cxx$1, + [AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])], + [ax_cv_cxx_compile_cxx$1=yes], + [ax_cv_cxx_compile_cxx$1=no])]) + if test x$ax_cv_cxx_compile_cxx$1 = xyes; then + ac_success=yes + fi]) + + m4_if([$2], [noext], [], [dnl + if test x$ac_success = xno; then + for alternative in ${ax_cxx_compile_alternatives}; do + switch="-std=gnu++${alternative}" + cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch]) + AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch, + $cachevar, + [ac_save_CXX="$CXX" + CXX="$CXX $switch" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])], + [eval $cachevar=yes], + [eval $cachevar=no]) + CXX="$ac_save_CXX"]) + if eval test x\$$cachevar = xyes; then + CXX="$CXX $switch" + if test -n "$CXXCPP" ; then + CXXCPP="$CXXCPP $switch" + fi + ac_success=yes + break + fi + done + fi]) + + m4_if([$2], [ext], [], [dnl + if test x$ac_success = xno; then + dnl HP's aCC needs +std=c++11 according to: + dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf + dnl Cray's crayCC needs "-h std=c++11" + for alternative in ${ax_cxx_compile_alternatives}; do + for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do + cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch]) + AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch, + $cachevar, + [ac_save_CXX="$CXX" + CXX="$CXX $switch" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])], + [eval $cachevar=yes], + [eval $cachevar=no]) + CXX="$ac_save_CXX"]) + if eval test x\$$cachevar = xyes; then + CXX="$CXX $switch" + if test -n "$CXXCPP" ; then + CXXCPP="$CXXCPP $switch" + fi + ac_success=yes + break + fi + done + if test x$ac_success = xyes; then + break + fi + done + fi]) + AC_LANG_POP([C++]) + if test x$ax_cxx_compile_cxx$1_required = xtrue; then + if test x$ac_success = xno; then + AC_MSG_ERROR([*** A compiler with support for C++$1 language features is required.]) + fi + fi + if test x$ac_success = xno; then + HAVE_CXX$1=0 + AC_MSG_NOTICE([No compiler with C++$1 support was found]) + else + HAVE_CXX$1=1 + AC_DEFINE(HAVE_CXX$1,1, + [define if the compiler supports basic C++$1 syntax]) + fi + AC_SUBST(HAVE_CXX$1) +]) + + +dnl Test body for checking C++11 support + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11], + _AX_CXX_COMPILE_STDCXX_testbody_new_in_11 +) + +dnl Test body for checking C++14 support + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14], + _AX_CXX_COMPILE_STDCXX_testbody_new_in_11 + _AX_CXX_COMPILE_STDCXX_testbody_new_in_14 +) + +dnl Test body for checking C++17 support + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_17], + _AX_CXX_COMPILE_STDCXX_testbody_new_in_11 + _AX_CXX_COMPILE_STDCXX_testbody_new_in_14 + _AX_CXX_COMPILE_STDCXX_testbody_new_in_17 +) + +dnl Test body for checking C++20 support + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_20], + _AX_CXX_COMPILE_STDCXX_testbody_new_in_11 + _AX_CXX_COMPILE_STDCXX_testbody_new_in_14 + _AX_CXX_COMPILE_STDCXX_testbody_new_in_17 + _AX_CXX_COMPILE_STDCXX_testbody_new_in_20 +) + + +dnl Tests for new features in C++11 + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[ + +// If the compiler admits that it is not ready for C++11, why torture it? +// Hopefully, this will speed up the test. + +#ifndef __cplusplus + +#error "This is not a C++ compiler" + +#elif __cplusplus < 201103L + +#error "This is not a C++11 compiler" + +#else + +namespace cxx11 +{ + + namespace test_static_assert + { + + template + struct check + { + static_assert(sizeof(int) <= sizeof(T), "not big enough"); + }; + + } + + namespace test_final_override + { + + struct Base + { + virtual ~Base() {} + virtual void f() {} + }; + + struct Derived : public Base + { + virtual ~Derived() override {} + virtual void f() override {} + }; + + } + + namespace test_double_right_angle_brackets + { + + template < typename T > + struct check {}; + + typedef check single_type; + typedef check> double_type; + typedef check>> triple_type; + typedef check>>> quadruple_type; + + } + + namespace test_decltype + { + + int + f() + { + int a = 1; + decltype(a) b = 2; + return a + b; + } + + } + + namespace test_type_deduction + { + + template < typename T1, typename T2 > + struct is_same + { + static const bool value = false; + }; + + template < typename T > + struct is_same + { + static const bool value = true; + }; + + template < typename T1, typename T2 > + auto + add(T1 a1, T2 a2) -> decltype(a1 + a2) + { + return a1 + a2; + } + + int + test(const int c, volatile int v) + { + static_assert(is_same::value == true, ""); + static_assert(is_same::value == false, ""); + static_assert(is_same::value == false, ""); + auto ac = c; + auto av = v; + auto sumi = ac + av + 'x'; + auto sumf = ac + av + 1.0; + static_assert(is_same::value == true, ""); + static_assert(is_same::value == true, ""); + static_assert(is_same::value == true, ""); + static_assert(is_same::value == false, ""); + static_assert(is_same::value == true, ""); + return (sumf > 0.0) ? sumi : add(c, v); + } + + } + + namespace test_noexcept + { + + int f() { return 0; } + int g() noexcept { return 0; } + + static_assert(noexcept(f()) == false, ""); + static_assert(noexcept(g()) == true, ""); + + } + + namespace test_constexpr + { + + template < typename CharT > + unsigned long constexpr + strlen_c_r(const CharT *const s, const unsigned long acc) noexcept + { + return *s ? strlen_c_r(s + 1, acc + 1) : acc; + } + + template < typename CharT > + unsigned long constexpr + strlen_c(const CharT *const s) noexcept + { + return strlen_c_r(s, 0UL); + } + + static_assert(strlen_c("") == 0UL, ""); + static_assert(strlen_c("1") == 1UL, ""); + static_assert(strlen_c("example") == 7UL, ""); + static_assert(strlen_c("another\0example") == 7UL, ""); + + } + + namespace test_rvalue_references + { + + template < int N > + struct answer + { + static constexpr int value = N; + }; + + answer<1> f(int&) { return answer<1>(); } + answer<2> f(const int&) { return answer<2>(); } + answer<3> f(int&&) { return answer<3>(); } + + void + test() + { + int i = 0; + const int c = 0; + static_assert(decltype(f(i))::value == 1, ""); + static_assert(decltype(f(c))::value == 2, ""); + static_assert(decltype(f(0))::value == 3, ""); + } + + } + + namespace test_uniform_initialization + { + + struct test + { + static const int zero {}; + static const int one {1}; + }; + + static_assert(test::zero == 0, ""); + static_assert(test::one == 1, ""); + + } + + namespace test_lambdas + { + + void + test1() + { + auto lambda1 = [](){}; + auto lambda2 = lambda1; + lambda1(); + lambda2(); + } + + int + test2() + { + auto a = [](int i, int j){ return i + j; }(1, 2); + auto b = []() -> int { return '0'; }(); + auto c = [=](){ return a + b; }(); + auto d = [&](){ return c; }(); + auto e = [a, &b](int x) mutable { + const auto identity = [](int y){ return y; }; + for (auto i = 0; i < a; ++i) + a += b--; + return x + identity(a + b); + }(0); + return a + b + c + d + e; + } + + int + test3() + { + const auto nullary = [](){ return 0; }; + const auto unary = [](int x){ return x; }; + using nullary_t = decltype(nullary); + using unary_t = decltype(unary); + const auto higher1st = [](nullary_t f){ return f(); }; + const auto higher2nd = [unary](nullary_t f1){ + return [unary, f1](unary_t f2){ return f2(unary(f1())); }; + }; + return higher1st(nullary) + higher2nd(nullary)(unary); + } + + } + + namespace test_variadic_templates + { + + template + struct sum; + + template + struct sum + { + static constexpr auto value = N0 + sum::value; + }; + + template <> + struct sum<> + { + static constexpr auto value = 0; + }; + + static_assert(sum<>::value == 0, ""); + static_assert(sum<1>::value == 1, ""); + static_assert(sum<23>::value == 23, ""); + static_assert(sum<1, 2>::value == 3, ""); + static_assert(sum<5, 5, 11>::value == 21, ""); + static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, ""); + + } + + // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae + // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function + // because of this. + namespace test_template_alias_sfinae + { + + struct foo {}; + + template + using member = typename T::member_type; + + template + void func(...) {} + + template + void func(member*) {} + + void test(); + + void test() { func(0); } + + } + +} // namespace cxx11 + +#endif // __cplusplus >= 201103L + +]]) + + +dnl Tests for new features in C++14 + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[ + +// If the compiler admits that it is not ready for C++14, why torture it? +// Hopefully, this will speed up the test. + +#ifndef __cplusplus + +#error "This is not a C++ compiler" + +#elif __cplusplus < 201402L + +#error "This is not a C++14 compiler" + +#else + +namespace cxx14 +{ + + namespace test_polymorphic_lambdas + { + + int + test() + { + const auto lambda = [](auto&&... args){ + const auto istiny = [](auto x){ + return (sizeof(x) == 1UL) ? 1 : 0; + }; + const int aretiny[] = { istiny(args)... }; + return aretiny[0]; + }; + return lambda(1, 1L, 1.0f, '1'); + } + + } + + namespace test_binary_literals + { + + constexpr auto ivii = 0b0000000000101010; + static_assert(ivii == 42, "wrong value"); + + } + + namespace test_generalized_constexpr + { + + template < typename CharT > + constexpr unsigned long + strlen_c(const CharT *const s) noexcept + { + auto length = 0UL; + for (auto p = s; *p; ++p) + ++length; + return length; + } + + static_assert(strlen_c("") == 0UL, ""); + static_assert(strlen_c("x") == 1UL, ""); + static_assert(strlen_c("test") == 4UL, ""); + static_assert(strlen_c("another\0test") == 7UL, ""); + + } + + namespace test_lambda_init_capture + { + + int + test() + { + auto x = 0; + const auto lambda1 = [a = x](int b){ return a + b; }; + const auto lambda2 = [a = lambda1(x)](){ return a; }; + return lambda2(); + } + + } + + namespace test_digit_separators + { + + constexpr auto ten_million = 100'000'000; + static_assert(ten_million == 100000000, ""); + + } + + namespace test_return_type_deduction + { + + auto f(int& x) { return x; } + decltype(auto) g(int& x) { return x; } + + template < typename T1, typename T2 > + struct is_same + { + static constexpr auto value = false; + }; + + template < typename T > + struct is_same + { + static constexpr auto value = true; + }; + + int + test() + { + auto x = 0; + static_assert(is_same::value, ""); + static_assert(is_same::value, ""); + return x; + } + + } + +} // namespace cxx14 + +#endif // __cplusplus >= 201402L + +]]) + + +dnl Tests for new features in C++17 + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[ + +// If the compiler admits that it is not ready for C++17, why torture it? +// Hopefully, this will speed up the test. + +#ifndef __cplusplus + +#error "This is not a C++ compiler" + +#elif __cplusplus < 201703L + +#error "This is not a C++17 compiler" + +#else + +#include +#include +#include + +namespace cxx17 +{ + + namespace test_constexpr_lambdas + { + + constexpr int foo = [](){return 42;}(); + + } + + namespace test::nested_namespace::definitions + { + + } + + namespace test_fold_expression + { + + template + int multiply(Args... args) + { + return (args * ... * 1); + } + + template + bool all(Args... args) + { + return (args && ...); + } + + } + + namespace test_extended_static_assert + { + + static_assert (true); + + } + + namespace test_auto_brace_init_list + { + + auto foo = {5}; + auto bar {5}; + + static_assert(std::is_same, decltype(foo)>::value); + static_assert(std::is_same::value); + } + + namespace test_typename_in_template_template_parameter + { + + template typename X> struct D; + + } + + namespace test_fallthrough_nodiscard_maybe_unused_attributes + { + + int f1() + { + return 42; + } + + [[nodiscard]] int f2() + { + [[maybe_unused]] auto unused = f1(); + + switch (f1()) + { + case 17: + f1(); + [[fallthrough]]; + case 42: + f1(); + } + return f1(); + } + + } + + namespace test_extended_aggregate_initialization + { + + struct base1 + { + int b1, b2 = 42; + }; + + struct base2 + { + base2() { + b3 = 42; + } + int b3; + }; + + struct derived : base1, base2 + { + int d; + }; + + derived d1 {{1, 2}, {}, 4}; // full initialization + derived d2 {{}, {}, 4}; // value-initialized bases + + } + + namespace test_general_range_based_for_loop + { + + struct iter + { + int i; + + int& operator* () + { + return i; + } + + const int& operator* () const + { + return i; + } + + iter& operator++() + { + ++i; + return *this; + } + }; + + struct sentinel + { + int i; + }; + + bool operator== (const iter& i, const sentinel& s) + { + return i.i == s.i; + } + + bool operator!= (const iter& i, const sentinel& s) + { + return !(i == s); + } + + struct range + { + iter begin() const + { + return {0}; + } + + sentinel end() const + { + return {5}; + } + }; + + void f() + { + range r {}; + + for (auto i : r) + { + [[maybe_unused]] auto v = i; + } + } + + } + + namespace test_lambda_capture_asterisk_this_by_value + { + + struct t + { + int i; + int foo() + { + return [*this]() + { + return i; + }(); + } + }; + + } + + namespace test_enum_class_construction + { + + enum class byte : unsigned char + {}; + + byte foo {42}; + + } + + namespace test_constexpr_if + { + + template + int f () + { + if constexpr(cond) + { + return 13; + } + else + { + return 42; + } + } + + } + + namespace test_selection_statement_with_initializer + { + + int f() + { + return 13; + } + + int f2() + { + if (auto i = f(); i > 0) + { + return 3; + } + + switch (auto i = f(); i + 4) + { + case 17: + return 2; + + default: + return 1; + } + } + + } + + namespace test_template_argument_deduction_for_class_templates + { + + template + struct pair + { + pair (T1 p1, T2 p2) + : m1 {p1}, + m2 {p2} + {} + + T1 m1; + T2 m2; + }; + + void f() + { + [[maybe_unused]] auto p = pair{13, 42u}; + } + + } + + namespace test_non_type_auto_template_parameters + { + + template + struct B + {}; + + B<5> b1; + B<'a'> b2; + + } + + namespace test_structured_bindings + { + + int arr[2] = { 1, 2 }; + std::pair pr = { 1, 2 }; + + auto f1() -> int(&)[2] + { + return arr; + } + + auto f2() -> std::pair& + { + return pr; + } + + struct S + { + int x1 : 2; + volatile double y1; + }; + + S f3() + { + return {}; + } + + auto [ x1, y1 ] = f1(); + auto& [ xr1, yr1 ] = f1(); + auto [ x2, y2 ] = f2(); + auto& [ xr2, yr2 ] = f2(); + const auto [ x3, y3 ] = f3(); + + } + + namespace test_exception_spec_type_system + { + + struct Good {}; + struct Bad {}; + + void g1() noexcept; + void g2(); + + template + Bad + f(T*, T*); + + template + Good + f(T1*, T2*); + + static_assert (std::is_same_v); + + } + + namespace test_inline_variables + { + + template void f(T) + {} + + template inline T g(T) + { + return T{}; + } + + template<> inline void f<>(int) + {} + + template<> int g<>(int) + { + return 5; + } + + } + +} // namespace cxx17 + +#endif // __cplusplus < 201703L + +]]) + + +dnl Tests for new features in C++20 + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_20], [[ + +#ifndef __cplusplus + +#error "This is not a C++ compiler" + +#elif __cplusplus < 202002L + +#error "This is not a C++20 compiler" + +#else + +#include + +namespace cxx20 +{ + +// As C++20 supports feature test macros in the standard, there is no +// immediate need to actually test for feature availability on the +// Autoconf side. + +} // namespace cxx20 + +#endif // __cplusplus < 202002L + +]]) diff --git a/m4/ax_cxx_compile_stdcxx_11.m4 b/m4/ax_cxx_compile_stdcxx_11.m4 deleted file mode 100644 index af37acdb5..000000000 --- a/m4/ax_cxx_compile_stdcxx_11.m4 +++ /dev/null @@ -1,133 +0,0 @@ -# ============================================================================ -# http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx_11.html -# ============================================================================ -# -# SYNOPSIS -# -# AX_CXX_COMPILE_STDCXX_11([ext|noext],[mandatory|optional]) -# -# DESCRIPTION -# -# Check for baseline language coverage in the compiler for the C++11 -# standard; if necessary, add switches to CXXFLAGS to enable support. -# -# The first argument, if specified, indicates whether you insist on an -# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g. -# -std=c++11). If neither is specified, you get whatever works, with -# preference for an extended mode. -# -# The second argument, if specified 'mandatory' or if left unspecified, -# indicates that baseline C++11 support is required and that the macro -# should error out if no mode with that support is found. If specified -# 'optional', then configuration proceeds regardless, after defining -# HAVE_CXX11 if and only if a supporting mode is found. -# -# LICENSE -# -# Copyright (c) 2008 Benjamin Kosnik -# Copyright (c) 2012 Zack Weinberg -# Copyright (c) 2013 Roy Stogner -# -# Copying and distribution of this file, with or without modification, are -# permitted in any medium without royalty provided the copyright notice -# and this notice are preserved. This file is offered as-is, without any -# warranty. - -#serial 3 - -m4_define([_AX_CXX_COMPILE_STDCXX_11_testbody], [ - template - struct check - { - static_assert(sizeof(int) <= sizeof(T), "not big enough"); - }; - - typedef check> right_angle_brackets; - - int a; - decltype(a) b; - - typedef check check_type; - check_type c; - check_type&& cr = static_cast(c); - - auto d = a; -]) - -AC_DEFUN([AX_CXX_COMPILE_STDCXX_11], [dnl - m4_if([$1], [], [], - [$1], [ext], [], - [$1], [noext], [], - [m4_fatal([invalid argument `$1' to AX_CXX_COMPILE_STDCXX_11])])dnl - m4_if([$2], [], [ax_cxx_compile_cxx11_required=true], - [$2], [mandatory], [ax_cxx_compile_cxx11_required=true], - [$2], [optional], [ax_cxx_compile_cxx11_required=false], - [m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX_11])])dnl - AC_LANG_PUSH([C++])dnl - ac_success=no - AC_CACHE_CHECK(whether $CXX supports C++11 features by default, - ax_cv_cxx_compile_cxx11, - [AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_11_testbody])], - [ax_cv_cxx_compile_cxx11=yes], - [ax_cv_cxx_compile_cxx11=no])]) - if test x$ax_cv_cxx_compile_cxx11 = xyes; then - ac_success=yes - fi - - m4_if([$1], [noext], [], [dnl - if test x$ac_success = xno; then - for switch in -std=gnu++11 -std=gnu++0x; do - cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx11_$switch]) - AC_CACHE_CHECK(whether $CXX supports C++11 features with $switch, - $cachevar, - [ac_save_CXXFLAGS="$CXXFLAGS" - CXXFLAGS="$CXXFLAGS $switch" - AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_11_testbody])], - [eval $cachevar=yes], - [eval $cachevar=no]) - CXXFLAGS="$ac_save_CXXFLAGS"]) - if eval test x\$$cachevar = xyes; then - CXXFLAGS="$CXXFLAGS $switch" - ac_success=yes - break - fi - done - fi]) - - m4_if([$1], [ext], [], [dnl - if test x$ac_success = xno; then - for switch in -std=c++11 -std=c++0x; do - cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx11_$switch]) - AC_CACHE_CHECK(whether $CXX supports C++11 features with $switch, - $cachevar, - [ac_save_CXXFLAGS="$CXXFLAGS" - CXXFLAGS="$CXXFLAGS $switch" - AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_11_testbody])], - [eval $cachevar=yes], - [eval $cachevar=no]) - CXXFLAGS="$ac_save_CXXFLAGS"]) - if eval test x\$$cachevar = xyes; then - CXXFLAGS="$CXXFLAGS $switch" - ac_success=yes - break - fi - done - fi]) - AC_LANG_POP([C++]) - if test x$ax_cxx_compile_cxx11_required = xtrue; then - if test x$ac_success = xno; then - AC_MSG_ERROR([*** A compiler with support for C++11 language features is required.]) - fi - else - if test x$ac_success = xno; then - HAVE_CXX11=0 - AC_MSG_NOTICE([No compiler with C++11 support was found]) - else - HAVE_CXX11=1 - AC_DEFINE(HAVE_CXX11,1, - [define if the compiler supports basic C++11 syntax]) - fi - - AC_SUBST(HAVE_CXX11) - fi -]) diff --git a/m4/ax_java_devel.m4 b/m4/ax_java_devel.m4 deleted file mode 100644 index ee1792b6b..000000000 --- a/m4/ax_java_devel.m4 +++ /dev/null @@ -1,57 +0,0 @@ -# Java discovery wrapper, defines JAVA_CPPFLAGS. - -AC_DEFUN([AX_JAVA_DEVEL], [ - - AX_PROG_JAVAC - AX_PROG_JAVA - AX_PROG_JAR - AX_JNI_INCLUDE_DIR - AC_PROG_MKDIR_P - - JAVA_CPPFLAGS= - for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS; do - JAVA_CPPFLAGS="$JAVA_CPPFLAGS -I$JNI_INCLUDE_DIR" - done - - # Set CPP compile flags. - AC_SUBST([JAVA_CPPFLAGS]) - - # Install .class files to ${datadir}/java. - AC_SUBST([javaexecdir], [${datadir}/java]) - - # Install .jar files to ${datadir}/java (also). - AC_SUBST([jarexecdir], [${datadir}/java]) - - # Build .class files in hidden directory. - AC_SUBST([java_builddir], [.class]) - $MKDIR_P $java_builddir - - # Build .jar files in hidden directory. - AC_SUBST([jar_builddir], [.jar]) - $MKDIR_P $jar_builddir - - # Instruct Automake to build .class files in ${java_builddir}. - AC_SUBST([JAVAROOT], [${java_builddir}]) - - ## Automake doesn't clean the modified JAVAROOT or jar builds, - ## so add following pattern in Makefile.am instead: - # - # dist_noinst_JAVA = \ - # [java files listed here] - # - # CLEANFILES = ${java_builddir}/*.class - # - # distclean-local: - # rm -rf ${java_builddir} ${jar_builddir} - # - ## Automake doesn't build .jar files, - ## so use following pattern in Makefile.am instead: - # - # nodist_jarexec_DATA = \ - # ${jar_builddir}/[jar name here]-${VERSION}.jar - # - # ${nodist_jarexec_DATA}: classnoinst.stamp - # ${JAR} cf ${JARFLAGS} ${nodist_jarexec_DATA} -C ${java_builddir} . - # - # CLEANFILES += ${jar_builddir}/*.jar -]) diff --git a/m4/ax_jni_include_dir.m4 b/m4/ax_jni_include_dir.m4 deleted file mode 100644 index b664d80b8..000000000 --- a/m4/ax_jni_include_dir.m4 +++ /dev/null @@ -1,126 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_jni_include_dir.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_JNI_INCLUDE_DIR -# -# DESCRIPTION -# -# AX_JNI_INCLUDE_DIR finds include directories needed for compiling -# programs using the JNI interface. -# -# JNI include directories are usually in the Java distribution. This is -# deduced from the value of $JAVA_HOME, $JAVAC, or the path to "javac", in -# that order. When this macro completes, a list of directories is left in -# the variable JNI_INCLUDE_DIRS. -# -# Example usage follows: -# -# AX_JNI_INCLUDE_DIR -# -# for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS -# do -# CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR" -# done -# -# If you want to force a specific compiler: -# -# - at the configure.in level, set JAVAC=yourcompiler before calling -# AX_JNI_INCLUDE_DIR -# -# - at the configure level, setenv JAVAC -# -# Note: This macro can work with the autoconf M4 macros for Java programs. -# This particular macro is not part of the original set of macros. -# -# LICENSE -# -# Copyright (c) 2008 Don Anderson -# -# Copying and distribution of this file, with or without modification, are -# permitted in any medium without royalty provided the copyright notice -# and this notice are preserved. This file is offered as-is, without any -# warranty. - -#serial 10 - -AU_ALIAS([AC_JNI_INCLUDE_DIR], [AX_JNI_INCLUDE_DIR]) -AC_DEFUN([AX_JNI_INCLUDE_DIR],[ - -JNI_INCLUDE_DIRS="" - -if test "x$JAVA_HOME" != x; then - _JTOPDIR="$JAVA_HOME" -else - if test "x$JAVAC" = x; then - JAVAC=javac - fi - AC_PATH_PROG([_ACJNI_JAVAC], [$JAVAC], [no]) - if test "x$_ACJNI_JAVAC" = xno; then - AC_MSG_ERROR([cannot find JDK; try setting \$JAVAC or \$JAVA_HOME]) - fi - _ACJNI_FOLLOW_SYMLINKS("$_ACJNI_JAVAC") - _JTOPDIR=`echo "$_ACJNI_FOLLOWED" | sed -e 's://*:/:g' -e 's:/[[^/]]*$::'` -fi - -case "$host_os" in - darwin*) _JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'` - _JINC="$_JTOPDIR/Headers";; - *) _JINC="$_JTOPDIR/include";; -esac -_AS_ECHO_LOG([_JTOPDIR=$_JTOPDIR]) -_AS_ECHO_LOG([_JINC=$_JINC]) - -# On Mac OS X 10.6.4, jni.h is a symlink: -# /System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/jni.h -# -> ../../CurrentJDK/Headers/jni.h. -AC_CHECK_FILE([$_JINC/jni.h], - [JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JINC"], - [_JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'` - AC_CHECK_FILE([$_JTOPDIR/include/jni.h], - [JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include"], - AC_MSG_ERROR([cannot find JDK header files])) - ]) - -# get the likely subdirectories for system specific java includes -case "$host_os" in -bsdi*) _JNI_INC_SUBDIRS="bsdos";; -freebsd*) _JNI_INC_SUBDIRS="freebsd";; -linux*) _JNI_INC_SUBDIRS="linux genunix";; -osf*) _JNI_INC_SUBDIRS="alpha";; -solaris*) _JNI_INC_SUBDIRS="solaris";; -mingw*) _JNI_INC_SUBDIRS="win32";; -cygwin*) _JNI_INC_SUBDIRS="win32";; -*) _JNI_INC_SUBDIRS="genunix";; -esac - -# add any subdirectories that are present -for JINCSUBDIR in $_JNI_INC_SUBDIRS -do - if test -d "$_JTOPDIR/include/$JINCSUBDIR"; then - JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include/$JINCSUBDIR" - fi -done -]) - -# _ACJNI_FOLLOW_SYMLINKS -# Follows symbolic links on , -# finally setting variable _ACJNI_FOLLOWED -# ---------------------------------------- -AC_DEFUN([_ACJNI_FOLLOW_SYMLINKS],[ -# find the include directory relative to the javac executable -_cur="$1" -while ls -ld "$_cur" 2>/dev/null | grep " -> " >/dev/null; do - AC_MSG_CHECKING([symlink for $_cur]) - _slink=`ls -ld "$_cur" | sed 's/.* -> //'` - case "$_slink" in - /*) _cur="$_slink";; - # 'X' avoids triggering unwanted echo options. - *) _cur=`echo "X$_cur" | sed -e 's/^X//' -e 's:[[^/]]*$::'`"$_slink";; - esac - AC_MSG_RESULT([$_cur]) -done -_ACJNI_FOLLOWED="$_cur" -])# _ACJNI diff --git a/m4/ax_prog_jar.m4 b/m4/ax_prog_jar.m4 deleted file mode 100644 index 3c60fcaf2..000000000 --- a/m4/ax_prog_jar.m4 +++ /dev/null @@ -1,49 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_prog_jar.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_PROG_JAR -# -# DESCRIPTION -# -# AX_PROG_JAR tests for an existing jar program. It uses the environment -# variable JAR then tests in sequence various common jar programs. -# -# If you want to force a specific compiler: -# -# - at the configure.in level, set JAR=yourcompiler before calling -# AX_PROG_JAR -# -# - at the configure level, setenv JAR -# -# You can use the JAR variable in your Makefile.in, with @JAR@. -# -# Note: This macro depends on the autoconf M4 macros for Java programs. It -# is VERY IMPORTANT that you download that whole set, some macros depend -# on other. Unfortunately, the autoconf archive does not support the -# concept of set of macros, so I had to break it for submission. -# -# The general documentation of those macros, as well as the sample -# configure.in, is included in the AX_PROG_JAVA macro. -# -# LICENSE -# -# Copyright (c) 2008 Egon Willighagen -# -# Copying and distribution of this file, with or without modification, are -# permitted in any medium without royalty provided the copyright notice -# and this notice are preserved. This file is offered as-is, without any -# warranty. - -#serial 7 - -AU_ALIAS([AC_PROG_JAR], [AX_PROG_JAR]) -AC_DEFUN([AX_PROG_JAR],[ -AS_IF([test "x$JAVAPREFIX" = x], - [test "x$JAR" = x && AC_CHECK_PROGS([JAR], [jar])], - [test "x$JAR" = x && AC_CHECK_PROGS([JAR], [jar], [], [$JAVAPREFIX/bin])]) -test "x$JAR" = x && AC_MSG_ERROR([no acceptable jar program found in \$PATH]) -AC_PROVIDE([$0])dnl -]) diff --git a/m4/ax_prog_java.m4 b/m4/ax_prog_java.m4 deleted file mode 100644 index 03961db5b..000000000 --- a/m4/ax_prog_java.m4 +++ /dev/null @@ -1,115 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_prog_java.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_PROG_JAVA -# -# DESCRIPTION -# -# Here is a summary of the main macros: -# -# AX_PROG_JAVAC: finds a Java compiler. -# -# AX_PROG_JAVA: finds a Java virtual machine. -# -# AX_CHECK_CLASS: finds if we have the given class (beware of CLASSPATH!). -# -# AX_CHECK_RQRD_CLASS: finds if we have the given class and stops -# otherwise. -# -# AX_TRY_COMPILE_JAVA: attempt to compile user given source. -# -# AX_TRY_RUN_JAVA: attempt to compile and run user given source. -# -# AX_JAVA_OPTIONS: adds Java configure options. -# -# AX_PROG_JAVA tests an existing Java virtual machine. It uses the -# environment variable JAVA then tests in sequence various common Java -# virtual machines. For political reasons, it starts with the free ones. -# You *must* call [AX_PROG_JAVAC] before. -# -# If you want to force a specific VM: -# -# - at the configure.in level, set JAVA=yourvm before calling AX_PROG_JAVA -# -# (but after AC_INIT) -# -# - at the configure level, setenv JAVA -# -# You can use the JAVA variable in your Makefile.in, with @JAVA@. -# -# *Warning*: its success or failure can depend on a proper setting of the -# CLASSPATH env. variable. -# -# TODO: allow to exclude virtual machines (rationale: most Java programs -# cannot run with some VM like kaffe). -# -# Note: This is part of the set of autoconf M4 macros for Java programs. -# It is VERY IMPORTANT that you download the whole set, some macros depend -# on other. Unfortunately, the autoconf archive does not support the -# concept of set of macros, so I had to break it for submission. -# -# A Web page, with a link to the latest CVS snapshot is at -# . -# -# This is a sample configure.in Process this file with autoconf to produce -# a configure script. -# -# AC_INIT(UnTag.java) -# -# dnl Checks for programs. -# AC_CHECK_CLASSPATH -# AX_PROG_JAVAC -# AX_PROG_JAVA -# -# dnl Checks for classes -# AX_CHECK_RQRD_CLASS(org.xml.sax.Parser) -# AX_CHECK_RQRD_CLASS(com.jclark.xml.sax.Driver) -# -# AC_OUTPUT(Makefile) -# -# LICENSE -# -# Copyright (c) 2008 Stephane Bortzmeyer -# -# This program is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation; either version 2 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. - -#serial 9 - -AU_ALIAS([AC_PROG_JAVA], [AX_PROG_JAVA]) -AC_DEFUN([AX_PROG_JAVA],[ -m4_define([m4_ax_prog_java_list], [kaffe java])dnl -AS_IF([test "x$JAVAPREFIX" = x], - [test x$JAVA = x && AC_CHECK_PROGS([JAVA], [m4_ax_prog_java_list])], - [test x$JAVA = x && AC_CHECK_PROGS([JAVA], [m4_ax_prog_java_list], [], [$JAVAPREFIX/bin])]) -test x$JAVA = x && AC_MSG_ERROR([no acceptable Java virtual machine found in \$PATH]) -m4_undefine([m4_ax_prog_java_list])dnl -AX_PROG_JAVA_WORKS -AC_PROVIDE([$0])dnl -]) diff --git a/m4/ax_prog_java_works.m4 b/m4/ax_prog_java_works.m4 deleted file mode 100644 index 54e132afa..000000000 --- a/m4/ax_prog_java_works.m4 +++ /dev/null @@ -1,134 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_prog_java_works.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_PROG_JAVA_WORKS -# -# DESCRIPTION -# -# Internal use ONLY. -# -# Note: This is part of the set of autoconf M4 macros for Java programs. -# It is VERY IMPORTANT that you download the whole set, some macros depend -# on other. Unfortunately, the autoconf archive does not support the -# concept of set of macros, so I had to break it for submission. The -# general documentation, as well as the sample configure.in, is included -# in the AX_PROG_JAVA macro. -# -# LICENSE -# -# Copyright (c) 2008 Stephane Bortzmeyer -# -# This program is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation; either version 2 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. - -#serial 9 - -AU_ALIAS([AC_PROG_JAVA_WORKS], [AX_PROG_JAVA_WORKS]) -AC_DEFUN([AX_PROG_JAVA_WORKS], [ -AC_PATH_PROG(UUDECODE, uudecode, [no]) -if test x$UUDECODE != xno; then -AC_CACHE_CHECK([if uudecode can decode base 64 file], ac_cv_prog_uudecode_base64, [ -dnl /** -dnl * Test.java: used to test if java compiler works. -dnl */ -dnl public class Test -dnl { -dnl -dnl public static void -dnl main( String[] argv ) -dnl { -dnl System.exit (0); -dnl } -dnl -dnl } -cat << \EOF > Test.uue -begin-base64 644 Test.class -yv66vgADAC0AFQcAAgEABFRlc3QHAAQBABBqYXZhL2xhbmcvT2JqZWN0AQAE -bWFpbgEAFihbTGphdmEvbGFuZy9TdHJpbmc7KVYBAARDb2RlAQAPTGluZU51 -bWJlclRhYmxlDAAKAAsBAARleGl0AQAEKEkpVgoADQAJBwAOAQAQamF2YS9s -YW5nL1N5c3RlbQEABjxpbml0PgEAAygpVgwADwAQCgADABEBAApTb3VyY2VG -aWxlAQAJVGVzdC5qYXZhACEAAQADAAAAAAACAAkABQAGAAEABwAAACEAAQAB -AAAABQO4AAyxAAAAAQAIAAAACgACAAAACgAEAAsAAQAPABAAAQAHAAAAIQAB -AAEAAAAFKrcAErEAAAABAAgAAAAKAAIAAAAEAAQABAABABMAAAACABQ= -==== -EOF -if $UUDECODE Test.uue; then - ac_cv_prog_uudecode_base64=yes -else - echo "configure: __oline__: uudecode had trouble decoding base 64 file 'Test.uue'" >&AS_MESSAGE_LOG_FD - echo "configure: failed file was:" >&AS_MESSAGE_LOG_FD - cat Test.uue >&AS_MESSAGE_LOG_FD - ac_cv_prog_uudecode_base64=no -fi -rm -f Test.uue]) -fi -if test x$ac_cv_prog_uudecode_base64 != xyes; then - rm -f Test.class - AC_MSG_WARN([I have to compile Test.class from scratch]) - if test x$ac_cv_prog_javac_works = xno; then - AC_MSG_ERROR([Cannot compile java source. $JAVAC does not work properly]) - fi - if test x$ac_cv_prog_javac_works = x; then - AX_PROG_JAVAC - fi -fi -AC_CACHE_CHECK(if $JAVA works, ac_cv_prog_java_works, [ -JAVA_TEST=Test.java -CLASS_TEST=Test.class -TEST=Test -changequote(, )dnl -cat << \EOF > $JAVA_TEST -/* [#]line __oline__ "configure" */ -public class Test { -public static void main (String args[]) { - System.exit (0); -} } -EOF -changequote([, ])dnl -if test x$ac_cv_prog_uudecode_base64 != xyes; then - if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $JAVA_TEST) && test -s $CLASS_TEST; then - : - else - echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD - cat $JAVA_TEST >&AS_MESSAGE_LOG_FD - AC_MSG_ERROR(The Java compiler $JAVAC failed (see config.log, check the CLASSPATH?)) - fi -fi -if AC_TRY_COMMAND($JAVA -classpath . $JAVAFLAGS $TEST) >/dev/null 2>&1; then - ac_cv_prog_java_works=yes -else - echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD - cat $JAVA_TEST >&AS_MESSAGE_LOG_FD - AC_MSG_ERROR(The Java VM $JAVA failed (see config.log, check the CLASSPATH?)) -fi -rm -fr $JAVA_TEST $CLASS_TEST Test.uue -]) -AC_PROVIDE([$0])dnl -] -) diff --git a/m4/ax_prog_javac.m4 b/m4/ax_prog_javac.m4 deleted file mode 100644 index d061243cd..000000000 --- a/m4/ax_prog_javac.m4 +++ /dev/null @@ -1,79 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_prog_javac.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_PROG_JAVAC -# -# DESCRIPTION -# -# AX_PROG_JAVAC tests an existing Java compiler. It uses the environment -# variable JAVAC then tests in sequence various common Java compilers. For -# political reasons, it starts with the free ones. -# -# If you want to force a specific compiler: -# -# - at the configure.in level, set JAVAC=yourcompiler before calling -# AX_PROG_JAVAC -# -# - at the configure level, setenv JAVAC -# -# You can use the JAVAC variable in your Makefile.in, with @JAVAC@. -# -# *Warning*: its success or failure can depend on a proper setting of the -# CLASSPATH env. variable. -# -# TODO: allow to exclude compilers (rationale: most Java programs cannot -# compile with some compilers like guavac). -# -# Note: This is part of the set of autoconf M4 macros for Java programs. -# It is VERY IMPORTANT that you download the whole set, some macros depend -# on other. Unfortunately, the autoconf archive does not support the -# concept of set of macros, so I had to break it for submission. The -# general documentation, as well as the sample configure.in, is included -# in the AX_PROG_JAVA macro. -# -# LICENSE -# -# Copyright (c) 2008 Stephane Bortzmeyer -# -# This program is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation; either version 2 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. - -#serial 7 - -AU_ALIAS([AC_PROG_JAVAC], [AX_PROG_JAVAC]) -AC_DEFUN([AX_PROG_JAVAC],[ -m4_define([m4_ax_prog_javac_list],["gcj -C" guavac jikes javac])dnl -AS_IF([test "x$JAVAPREFIX" = x], - [test "x$JAVAC" = x && AC_CHECK_PROGS([JAVAC], [m4_ax_prog_javac_list])], - [test "x$JAVAC" = x && AC_CHECK_PROGS([JAVAC], [m4_ax_prog_javac_list], [], [$JAVAPREFIX/bin])]) -m4_undefine([m4_ax_prog_javac_list])dnl -test "x$JAVAC" = x && AC_MSG_ERROR([no acceptable Java compiler found in \$PATH]) -AX_PROG_JAVAC_WORKS -AC_PROVIDE([$0])dnl -]) diff --git a/m4/ax_prog_javac_works.m4 b/m4/ax_prog_javac_works.m4 deleted file mode 100644 index 7dfa1e37d..000000000 --- a/m4/ax_prog_javac_works.m4 +++ /dev/null @@ -1,72 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_prog_javac_works.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_PROG_JAVAC_WORKS -# -# DESCRIPTION -# -# Internal use ONLY. -# -# Note: This is part of the set of autoconf M4 macros for Java programs. -# It is VERY IMPORTANT that you download the whole set, some macros depend -# on other. Unfortunately, the autoconf archive does not support the -# concept of set of macros, so I had to break it for submission. The -# general documentation, as well as the sample configure.in, is included -# in the AX_PROG_JAVA macro. -# -# LICENSE -# -# Copyright (c) 2008 Stephane Bortzmeyer -# -# This program is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation; either version 2 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. - -#serial 6 - -AU_ALIAS([AC_PROG_JAVAC_WORKS], [AX_PROG_JAVAC_WORKS]) -AC_DEFUN([AX_PROG_JAVAC_WORKS],[ -AC_CACHE_CHECK([if $JAVAC works], ac_cv_prog_javac_works, [ -JAVA_TEST=Test.java -CLASS_TEST=Test.class -cat << \EOF > $JAVA_TEST -/* [#]line __oline__ "configure" */ -public class Test { -} -EOF -if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $JAVA_TEST) >/dev/null 2>&1; then - ac_cv_prog_javac_works=yes -else - AC_MSG_ERROR([The Java compiler $JAVAC failed (see config.log, check the CLASSPATH?)]) - echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD - cat $JAVA_TEST >&AS_MESSAGE_LOG_FD -fi -rm -f $JAVA_TEST $CLASS_TEST -]) -AC_PROVIDE([$0])dnl -]) diff --git a/m4/ax_python_devel.m4 b/m4/ax_python_devel.m4 deleted file mode 100644 index 59a2ff090..000000000 --- a/m4/ax_python_devel.m4 +++ /dev/null @@ -1,324 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_python_devel.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_PYTHON_DEVEL([version]) -# -# DESCRIPTION -# -# Note: Defines as a precious variable "PYTHON_VERSION". Don't override it -# in your configure.ac. -# -# This macro checks for Python and tries to get the include path to -# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS) -# output variables. It also exports $(PYTHON_EXTRA_LIBS) and -# $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code. -# -# You can search for some particular version of Python by passing a -# parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please -# note that you *have* to pass also an operator along with the version to -# match, and pay special attention to the single quotes surrounding the -# version number. Don't use "PYTHON_VERSION" for this: that environment -# variable is declared as precious and thus reserved for the end-user. -# -# This macro should work for all versions of Python >= 2.1.0. As an end -# user, you can disable the check for the python version by setting the -# PYTHON_NOVERSIONCHECK environment variable to something else than the -# empty string. -# -# If you need to use this macro for an older Python version, please -# contact the authors. We're always open for feedback. -# -# LICENSE -# -# Copyright (c) 2009 Sebastian Huber -# Copyright (c) 2009 Alan W. Irwin -# Copyright (c) 2009 Rafael Laboissiere -# Copyright (c) 2009 Andrew Collier -# Copyright (c) 2009 Matteo Settenvini -# Copyright (c) 2009 Horst Knorr -# Copyright (c) 2013 Daniel Mullner -# -# This program is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. - -#serial 17 - -AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL]) -AC_DEFUN([AX_PYTHON_DEVEL],[ - # - # Allow the use of a (user set) custom python version - # - AC_ARG_VAR([PYTHON_VERSION],[The installed Python - version to use, for example '2.3'. This string - will be appended to the Python interpreter - canonical name.]) - - AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]]) - if test -z "$PYTHON"; then - AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path]) - PYTHON_VERSION="" - fi - - # - # Check for a version of Python >= 2.1.0 - # - AC_MSG_CHECKING([for a version of Python >= '2.1.0']) - ac_supports_python_ver=`$PYTHON -c "import sys; \ - ver = sys.version.split ()[[0]]; \ - print (ver >= '2.1.0')"` - if test "$ac_supports_python_ver" != "True"; then - if test -z "$PYTHON_NOVERSIONCHECK"; then - AC_MSG_RESULT([no]) - AC_MSG_FAILURE([ -This version of the AC@&t@_PYTHON_DEVEL macro -doesn't work properly with versions of Python before -2.1.0. You may need to re-run configure, setting the -variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG, -PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand. -Moreover, to disable this check, set PYTHON_NOVERSIONCHECK -to something else than an empty string. -]) - else - AC_MSG_RESULT([skip at user request]) - fi - else - AC_MSG_RESULT([yes]) - fi - - # - # if the macro parameter ``version'' is set, honour it - # - if test -n "$1"; then - AC_MSG_CHECKING([for a version of Python $1]) - ac_supports_python_ver=`$PYTHON -c "import sys; \ - ver = sys.version.split ()[[0]]; \ - print (ver $1)"` - if test "$ac_supports_python_ver" = "True"; then - AC_MSG_RESULT([yes]) - else - AC_MSG_RESULT([no]) - AC_MSG_ERROR([this package requires Python $1. -If you have it installed, but it isn't the default Python -interpreter in your system path, please pass the PYTHON_VERSION -variable to configure. See ``configure --help'' for reference. -]) - PYTHON_VERSION="" - fi - fi - - # - # Check if you have distutils, else fail - # - AC_MSG_CHECKING([for the distutils Python package]) - ac_distutils_result=`$PYTHON -c "import distutils" 2>&1` - if test -z "$ac_distutils_result"; then - AC_MSG_RESULT([yes]) - else - AC_MSG_RESULT([no]) - AC_MSG_ERROR([cannot import Python module "distutils". -Please check your Python installation. The error was: -$ac_distutils_result]) - PYTHON_VERSION="" - fi - - # - # Check for Python include path - # - AC_MSG_CHECKING([for Python include path]) - if test -z "$PYTHON_CPPFLAGS"; then - python_path=`$PYTHON -c "import distutils.sysconfig; \ - print (distutils.sysconfig.get_python_inc ());"` - plat_python_path=`$PYTHON -c "import distutils.sysconfig; \ - print (distutils.sysconfig.get_python_inc (plat_specific=1));"` - if test -n "${python_path}"; then - if test "${plat_python_path}" != "${python_path}"; then - python_path="-I$python_path -I$plat_python_path" - else - python_path="-I$python_path" - fi - fi - PYTHON_CPPFLAGS=$python_path - fi - AC_MSG_RESULT([$PYTHON_CPPFLAGS]) - AC_SUBST([PYTHON_CPPFLAGS]) - - # - # Check for Python library path - # - AC_MSG_CHECKING([for Python library path]) - if test -z "$PYTHON_LDFLAGS"; then - # (makes two attempts to ensure we've got a version number - # from the interpreter) - ac_python_version=`cat<]], - [[Py_Initialize();]]) - ],[pythonexists=yes],[pythonexists=no]) - AC_LANG_POP([C]) - # turn back to default flags - CPPFLAGS="$ac_save_CPPFLAGS" - LIBS="$ac_save_LIBS" - - AC_MSG_RESULT([$pythonexists]) - - if test ! "x$pythonexists" = "xyes"; then - AC_MSG_FAILURE([ - Could not link test program to Python. Maybe the main Python library has been - installed in some non-standard library path. If so, pass it to configure, - via the LDFLAGS environment variable. - Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib" - ============================================================================ - ERROR! - You probably have to install the development version of the Python package - for your distribution. The exact name of this package varies among them. - ============================================================================ - ]) - PYTHON_VERSION="" - fi - - # - # all done! - # -])