https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87892
Bug ID: 87892 Summary: [9 Regression]: libsanitizer fails to build on CentOS 5.11 (glibc 2.5) Product: gcc Version: 9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: sanitizer Assignee: unassigned at gcc dot gnu.org Reporter: ubizjak at gmail dot com CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org, jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at gcc dot gnu.org Target Milestone: --- Building libsanitizer with old glibc (2.5) fails with: libtool: compile: /home/uros/gcc-build/./gcc/xgcc -shared-libgcc -B/home/uros/gcc-build/./gcc -nostdinc++ -L/home/uros/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/src -L/home/uros/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/home/uros/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -B/home/uros/local/x86_64-pc-linux-gnu/bin/ -B/home/uros/local/x86_64-pc-linux-gnu/lib/ -isystem /home/uros/local/x86_64-pc-linux-gnu/include -isystem /home/uros/local/x86_64-pc-linux-gnu/sys-include -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -DHAVE_RPC_XDR_H=1 -DHAVE_TIRPC_RPC_XDR_H=0 -I. -I../../../../git/gcc/libsanitizer/sanitizer_common -I.. -I ../../../../git/gcc/libsanitizer/include -isystem ../../../../git/gcc/libsanitizer/include/system -Wall -W -Wno-unused-parameter -Wwrite-strings -pedantic -Wno-long-long -fPIC -fno-builtin -fno-exceptions -fno-rtti -fomit-frame-pointer -funwind-tables -fvisibility=hidden -Wno-variadic-macros -I../../libstdc++-v3/include -I../../libstdc++-v3/include/x86_64-pc-linux-gnu -I../../../../git/gcc/libsanitizer/../libstdc++-v3/libsupc++ -std=gnu++11 -DSANITIZER_LIBBACKTRACE -DSANITIZER_CP_DEMANGLE -I ../../../../git/gcc/libsanitizer/../libbacktrace -I ../libbacktrace -I ../../../../git/gcc/libsanitizer/../include -include ../../../../git/gcc/libsanitizer/libbacktrace/backtrace-rename.h -g -O2 -D_GNU_SOURCE -MT sanitizer_linux_libcdep.lo -MD -MP -MF .deps/sanitizer_linux_libcdep.Tpo -c ../../../../git/gcc/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc -fPIC -DPIC -o .libs/sanitizer_linux_libcdep.o ../../../../git/gcc/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc: In function ‘__sanitizer::u32 __sanitizer::GetNumberOfCPUs()’: ../../../../git/gcc/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc:699:10: error: ‘CPU_COUNT’ was not declared in this scope 699 | return CPU_COUNT(&CPUs); | ^~~~~~~~~ gmake[2]: *** [sanitizer_linux_libcdep.lo] Error 1 gmake[2]: Leaving directory `/home/uros/gcc-build/x86_64-pc-linux-gnu/libsanitizer/sanitizer_common' gmake[1]: *** [all-recursive] Error 1 gmake[1]: Leaving directory `/home/uros/gcc-build/x86_64-pc-linux-gnu/libsanitizer' gmake: *** [all] Error 2