Does Cygwin support __builtin_thread_pointer? I'm guessing not, because
I'm getting a link error (undefined reference to
`__builtin_thread_pointer') when I try to build some software that uses
it. Or is there something that would have to be added to the link
command line? The full command line and error message are quoted below,
in case anyone spots something obvious.
Ken
[242/242] Linking C executable luametatex.exe
FAILED: luametatex.exe
: && /usr/bin/gcc.exe -ggdb -O2 -pipe -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=3 -fstack-protector-strong
--param=ssp-buffer-size=4
-ffile-prefix-map=/home/kbrown/src/cygluametatex/luametatex-2.11.05-1.x86_64/build=/usr/src/debug/luametatex-2.11.05-1
-ffile-prefix-map=/home/kbrown/src/cygluametatex/luametatex-2.11.05-1.x86_64/src/luametatex=/usr/src/debug/luametatex-2.11.05-1
-O2 -g -DNDEBUG -s CMakeFiles/luametatex.dir/source/luametatex.c.o -o
luametatex.exe -Wl,--out-implib,libluametatex.dll.a
-Wl,--major-image-version,0,--minor-image-version,0 libtex.a liblua.a
libmp.a libluarest.a libluasocket.a libluaoptional.a libpplib.a
libminiz.a libsoftposit.a libpotrace.a -ldl libmimalloc.a -lpthread
-lm && /bin/sh CMakeFiles/luametatex.dir/post-build.sh 7847d1a259c666c4
/usr/lib/gcc/x86_64-pc-cygwin/12/../../../../x86_64-pc-cygwin/bin/ld:
libmimalloc.a(alloc.c.o): in function `_mi_prim_thread_id':
/usr/src/debug/luametatex-2.11.05-1/source/libraries/mimalloc/include/mimalloc/prim.h:251:(.text+0x187):
undefined reference to `__builtin_thread_pointer'
/usr/lib/gcc/x86_64-pc-cygwin/12/../../../../x86_64-pc-cygwin/bin/ld:
/usr/src/debug/luametatex-2.11.05-1/source/libraries/mimalloc/include/mimalloc/prim.h:251:(.text+0x437):
undefined reference to `__builtin_thread_pointer'
/usr/lib/gcc/x86_64-pc-cygwin/12/../../../../x86_64-pc-cygwin/bin/ld:
/usr/src/debug/luametatex-2.11.05-1/source/libraries/mimalloc/include/mimalloc/prim.h:251:(.text+0x4e7):
undefined reference to `__builtin_thread_pointer'
/usr/lib/gcc/x86_64-pc-cygwin/12/../../../../x86_64-pc-cygwin/bin/ld:
libmimalloc.a(alloc.c.o):/usr/src/debug/luametatex-2.11.05-1/source/libraries/mimalloc/src/free.c:340:(.text+0x597):
undefined reference to `__builtin_thread_pointer'
/usr/lib/gcc/x86_64-pc-cygwin/12/../../../../x86_64-pc-cygwin/bin/ld:
libmimalloc.a(init.c.o): in function `_mi_prim_thread_id':
/usr/src/debug/luametatex-2.11.05-1/source/libraries/mimalloc/include/mimalloc/prim.h:251:(.text+0xd1):
undefined reference to `__builtin_thread_pointer'
/usr/lib/gcc/x86_64-pc-cygwin/12/../../../../x86_64-pc-cygwin/bin/ld:
libmimalloc.a(init.c.o):/usr/src/debug/luametatex-2.11.05-1/source/libraries/mimalloc/include/mimalloc/prim.h:251:
more undefined references to `__builtin_thread_pointer' follow
collect2: error: ld returned 1 exit status
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