$ echo 'int main(){return 0;}' >tmp.c && gcc -xc++ tmp.c
/tmp/ccGESvie.o:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0'
libstdc++'s configure missdetects in this way the -Wl,--gc-sections
support in the linker.
(...)
configure:8405: checking for ld that supports -Wl,--gc-sections
configure:8430:
/home/users/pluto/rpm/BUILD/gcc-4.2.0-20070316/builddir/./gcc/xgcc
-B/home/users/pluto/rpm/BUILD/gcc-4.2.0-20070316/builddir/./gcc/
-B/usr/x86_64-pld-linux/bin/ -B/usr/x86_64-pld-linux/lib/ -isystem
/usr/x86_64-pld-linux/include -isystem /usr/x86_64-pld-linux/sys-include -o
conftest -x c++ -Wl,--gc-sections -Wl,--as-needed conftest.c >&5
/tmp/ccobXMwl.o:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status
configure:8436: $? = 1
--
Summary: -x c++ causes failures with c language sources.
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: driver
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pluto at agmk dot net
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31621