#802 OpenSSL fails to build with internal compiler error

[Tanglor]

step to reproduce:

• pip install conan
• copy conan_docker_mingw_debug to ~/.conan/profiles/default
• conan install OpenSSL/1.0.2q@conan/stable --build zlib
• conan install OpenSSL/1.0.2q@conan/stable --build OpenSSL

Error in compilation:

making all in crypto/objects...
make[2]: Entering directory '/root/.conan/data/OpenSSL/1.0.2r/conan/stable/build/e393111ba38dd85fcdf785ee91a62c480dbb33b8/openssl-1.0.2r/crypto/objects'
/usr/bin/x86_64-w64-mingw32-gcc-posix -I.. -I../.. -I../modes -I../asn1 -I../evp -I../../include -I/root/.conan/data/zlib/1.2.11/conan/stable/package/2e90c2fe2f69846019f521f2004427fb191035af/include -DOPENSSL_THREADS -D_MT -DDSO_WIN32 -fPIC -m64 -g -O0 -g3 -fno-omit-frame-pointer -fno-inline-functions -DL_ENDIAN -O3 -Wall -DWIN32_LEAN_AND_MEAN -DUNICODE -D_UNICODE   -c -o o_names.o o_names.c
/usr/bin/x86_64-w64-mingw32-gcc-posix -I.. -I../.. -I../modes -I../asn1 -I../evp -I../../include -I/root/.conan/data/zlib/1.2.11/conan/stable/package/2e90c2fe2f69846019f521f2004427fb191035af/include -DOPENSSL_THREADS -D_MT -DDSO_WIN32 -fPIC -m64 -g -O0 -g3 -fno-omit-frame-pointer -fno-inline-functions -DL_ENDIAN -O3 -Wall -DWIN32_LEAN_AND_MEAN -DUNICODE -D_UNICODE   -c -o obj_dat.o obj_dat.c
during RTL pass: final
obj_dat.c: In function 'OBJ_bsearch_ex_':
obj_dat.c:725:1: internal compiler error: in based_loc_descr, at dwarf2out.c:14330
 }
 ^
Please submit a full bug report,
with preprocessed source if appropriate

Full log in https://pastebin.com/U9i7djvZ

[Vadim Zeitlin]

For the reference, libxml2 build withMinGW-w64-provided gcc 8 fails with the same error when -fno-omit-frame-pointer is used (but not without it).