LLVM to JavaScript llvm errors

[filip-minic]

Hello,

I have been trying for a while to get an emtcl version of tcl 8.6.8 but to no avail. The issues I am facing are:

emcc --post-js js/postJsTcl.js --pre-js js/preJs.js --memory-init-file 0 -O3 --llvm-lto 3 --closure 0 -s EXPORTED_FUNCTIONS="[ '_Tcl_CreateInterp', '_Tcl_Eval', '_Tcl_GetStringResult', $([ 1 = 1 ] && echo "'_CreateDomCmd'," || true) ]"
$([ 1 = 1 ] && echo '-Itcl/generic opt/dom.c' || true) emtcl.bc -o emtcl.js
error: Linking globals named 'strstr': symbol multiply defined!
ERROR:root:Failed to run llvm optimizations:
WARNING:root:Note: Input file "@/tmp/tmpWUh7V9.response" did not exist.
Makefile:38: recipe for target 'emtcl.js' failed
make: *** [emtcl.js] Error 1

Additionally I have attempted different configurations with the makefile you supplied, some produced different errors which also did not lead to a successful compilation. Any suggestions are highly appreciated.

One attempt was to remove any configuration and just try emcc emtcl.bc -o emtcl.js which procuded a JavaScript file with just 200kb which does not work.
Here are the files I used and received from the compilation:
emtcl_files.tar.gz
libtcl8.6.zip