Bootstrap Issue with GCC 6.3.0

[blackwellops]

I'm not sure if this "issue" should be here or on the musl-cross repo.

However, when trying to ./bootstrap with GCC 6.3.0 installed. I received this error.

In file included from ../../gcc/cp/except.c:1023:0:
cfns.gperf: In function ‘const char* libc_name_p(const char*, unsigned int)’:
cfns.gperf:101:1: error: ‘const char* libc_name_p(const char*, unsigned int)’ redeclared inline with ‘gnu_inline’ attribute
cfns.gperf:26:14: note: ‘const char* libc_name_p(const char*, unsigned int)’ previously declared here
g++ -c  -DIN_GCC_FRONTEND  -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE  -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings   -DHAVE_CONFIG_H -I. -Icp -I../../gcc -I../../gcc/cp -I../../gcc/../include -I../../gcc/../libcpp/include -I/home/***/git/heads/build/musl-cross/gcc-5.3.0/build2/./gmp -I/home/***/git/heads/build/musl-cross/gcc-5.3.0/gmp -I/home/***/git/heads/build/musl-cross/gcc-5.3.0/build2/./mpfr/src -I/home/***/git/heads/build/musl-cross/gcc-5.3.0/mpfr/src -I/home/***/git/heads/build/musl-cross/gcc-5.3.0/mpc/src  -I../../gcc/../libdecnumber -I../../gcc/../libdecnumber/bid -I../libdecnumber -I../../gcc/../libbacktrace   -o cp/init.o -MT cp/init.o -MMD -MP -MF cp/.deps/init.TPo ../../gcc/cp/init.c
cfns.gperf: At global scope:
cfns.gperf:26:14: warning: inline function ‘const char* libc_name_p(const char*, unsigned int)’ used but never defined
Makefile:1065: recipe for target 'cp/except.o' failed
make[2]: *** [cp/except.o] Error 1

Which seems to be related to this https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69959.

Another example LibreELEC/LibreELEC.tv#384 recommends using export CXXFLAGS="$CXXFLAGS -std=gnu++98"to remedy this.

However, I do not know what impact that has.

I recreated this on Debian Sid and in a docker container using debian:stretch.

Installing clang instead of gcc seemed to resolve this.

[rofl0r]

i've fixed that issue just yesterday in musl-cross GregorR/musl-cross@7601571 (at least for gcc 4.7.4). which gcc version are you trying to build ? also note that the bitbucket repo is unmaintained.

[blackwellops]

gcc-5.3.0

[rofl0r]

fixed. GregorR/musl-cross@e01e535