Merge pull request #6 from GeniusVentures/master

Fix iOS compatibility

CMakeLists.txt

@@ -135,7 +135,7 @@ if(HAVE_UTIME)
     add_definitions(-DHAVE_UTIME=1)
 endif()
 
-check_function_exists(mremap HAVE_MREMAP)
+check_symbol_exists(mremap "sys/mman.h" HAVE_MREMAP)
 if(HAVE_MREMAP)
     add_definitions(-DHAVE_MREMAP=1)
 endif()
@@ -156,11 +156,11 @@ if(HAVE_LSTAT)
 endif()
 
 check_function_exists(gethostuuid HAVE_GETHOSTUUID)
-if(HAVE_GETHOSTUUID)
+if(HAVE_GETHOSTUUID AND NOT ${CMAKE_SYSTEM_NAME} STREQUAL "iOS")
     add_definitions(-DHAVE_GETHOSTUUID=1)
 endif()
 
-check_function_exists(posix_fallocate HAVE_POSIX_FALLOCATE)
+check_symbol_exists(posix_fallocate "fcntl.h" HAVE_POSIX_FALLOCATE)
 if(HAVE_POSIX_FALLOCATE)
     add_definitions(-DHAVE_POSIX_FALLOCATE=1)
 endif()