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From: "euloanty at live dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug bootstrap/98300] GCC 11 failed to build on Windows 10. I guess
 the new module completely breaks this.
Date: Tue, 15 Dec 2020 19:48:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98300

--- Comment #5 from fdlbxtqi <euloanty at live dot com> ---
(In reply to Nathan Sidwell from comment #3)
> Hm, I thought there was sufficient #ifing to prevent that ...


BTW. I tried the example you showed on the GCC module webpage on Linux. It
fails to compile. why?

cqwrteur@Home-Server:~/myhome/test_module$ vim hello.cc
cqwrteur@Home-Server:~/myhome/test_module$ vim a.cc
cqwrteur@Home-Server:~/myhome/test_module$ g++ -fmodules-ts hello.cc main.cc
-Ofast -std=3Dc++20 -s
/usr/bin/ld: /tmp/ccQUwe74.o: in function `_GLOBAL__sub_I_main':
main.cc:(.text.startup+0x31): undefined reference to `_ZGIW5helloEv'
collect2: error: ld returned 1 exit status



My MinGW-w64 msys2 build script

Just run
makepkg-mingw

in the msys2 console and the compiler will get built.


https://bitbucket.org/ejsvifq_mabmip/mingw-gcc-mcf-gthread/src/master/=