Hi, When configuring a gcc build with "--disable-bootstrap --enable-languages=c" I run into this error: ... libtool: compile: g++ -B/home/vries/gcc_versions/devel/lean-c/install/x86_64-unknown-linux-gnu/bin/ -B/home/vries/gcc_versions/devel/lean-c/install/x86_64-unknown-linux-gnu/lib/ -isystem /home/vries/gcc_versions/devel/lean-c/install/x86_64-unknown-linux-gnu/include -isystem /home/vries/gcc_versions/devel/lean-c/install/x86_64-unknown-linux-gnu/sys-include "-DPACKAGE_NAME=\"Cilk Runtime Library\"" -DPACKAGE_TARNAME=\"cilk-runtime-library\" -DPACKAGE_VERSION=\"2.0\" "-DPACKAGE_STRING=\"Cilk Runtime Library 2.0\"" -DPACKAGE_BUGREPORT=\"c...@intel.com\" -DPACKAGE_URL=\"\" -DPACKAGE=\"cilk-runtime-library\" -DVERSION=\"2.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_ALLOCA_H=1 -DHAVE_ALLOCA=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -I. -I/home/vries/gcc_versions/devel/src/libcilkrts -I/home/vries/gcc_versions/devel/src/libcilkrts/include -I/home/vries/gcc_versions/devel/src/libcilkrts/runtime -I/home/vries/gcc_versions/devel/src/libcilkrts/runtime/config/x86 -DIN_CILK_RUNTIME=1 -D_Cilk_spawn= -D_Cilk_sync= -D_Cilk_for=for -fcilkplus -g3 -O0 -dH -D_GNU_SOURCE -MT bug.lo -MD -MP -MF .deps/bug.Tpo -c /home/vries/gcc_versions/devel/src/libcilkrts/runtime/bug.cpp -fPIC -DPIC -o .libs/bug.o g++: error: unrecognized command line option ‘-fcilkplus’ make[2]: *** [bug.lo] Error 1 make[2]: Leaving directory `/home/vries/gcc_versions/devel/lean-c/build/x86_64-unknown-linux-gnu/libcilkrts' ...
The error occurs because the compiler doesn't support -fcilkplus. Should configure disable libcilkplus when c++ is not enabled? I see the same error with "--disable-bootstrap --enable-languages=c,c++". Should configure test the compiler for support of -fcilkplus and disable libcilkplus if not? Thanks, - Tom
