I've seen this today both for alpha and s390 cross from x86_64: > libtool: compile: /home/rth/work/gcc/bld-s390/./gcc/xgcc -shared-libgcc > -B/home/rth/work/gcc/bld-s390/./gcc -nostdinc++ > -L/home/rth/work/gcc/bld-s390/s390x-linux/libstdc++-v3/src > -L/home/rth/work/gcc/bld-s390/s390x-linux/libstdc++-v3/src/.libs > -B/home/rth/work/gcc/run-cross/s390x-linux/bin/ > -B/home/rth/work/gcc/run-cross/s390x-linux/lib/ -isystem > /home/rth/work/gcc/run-cross/s390x-linux/include -isystem > /home/rth/work/gcc/run-cross/s390x-linux/sys-include > -I/home/rth/work/gcc/git-master/libstdc++-v3/../libgcc > -I/home/rth/work/gcc/bld-s390/s390x-linux/libstdc++-v3/include/s390x-linux > -I/home/rth/work/gcc/bld-s390/s390x-linux/libstdc++-v3/include > -I/home/rth/work/gcc/git-master/libstdc++-v3/libsupc++ > -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi > -fdiagnostics-show-location=once -ffunction-sections -fdata-sections > -frandom-seed=locale-inst.lo -g -O2 -D_GNU_SOURCE -c > ../../../../../git-master/libstdc++-v3/src/c++98/locale-inst.cc -fPIC -DPIC > -o loca! le-inst.o
> ../../../../../git-master/libstdc++-v3/src/c++98/locale-inst.cc:362:8: error: > ‘void > _ZNKSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE9_M_insertILb1EEES3_S3_RSt8ios_basecRKSs()’ > aliased to undefined symbol > ‘_ZNKSt17__gnu_cxx_ldbl1289money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE9_M_insertILb1EEES4_S4_RSt8ios_basecRKSs’ > > _ZNKSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE9_M_insertILb1EEES3_S3_RSt8ios_basecRKSs); > ^ > ../../../../../git-master/libstdc++-v3/src/c++98/locale-inst.cc:329:19: note: > in definition of macro '_GLIBCXX_LDBL_COMPAT' > extern "C" void ldbl (void) __attribute__ ((alias (#dbl), weak)) > ^ > ../../../../../git-master/libstdc++-v3/src/c++98/locale-inst.cc:360:8: error: > ‘void > _ZNKSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE9_M_insertILb0EEES3_S3_RSt8ios_basecRKSs()’ > aliased to undefined symbol > ‘_ZNKSt17__gnu_cxx_ldbl1289money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE9_M_insertILb0EEES4_S4_RSt8ios_basecRKSs’ > > _ZNKSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE9_M_insertILb0EEES3_S3_RSt8ios_basecRKSs); > ^ > ../../../../../git-master/libstdc++-v3/src/c++98/locale-inst.cc:329:19: note: > in definition of macro '_GLIBCXX_LDBL_COMPAT' > extern "C" void ldbl (void) __attribute__ ((alias (#dbl), weak)) > ^ where, given that I've configured --with-long-double-128, appears to have mis-identified the correct setting of _GLIBCXX_LONG_DOUBLE_COMPAT. Is anyone else seeing this? Is this a problem for cross-compile only? Certainly editing config.h after the fact lets the build complete... r~
