http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54642
--- Comment #2 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-09-21 00:36:53 UTC --- Confirmed this on a second machine at r191596. as well. The full context of the error is... cd ../darwin_objdir make -j 1 install DESTDIR=/sw/src/fink.build/root-gcc48-4.8.0-1000 /bin/sh ../gcc-4.8-20120920/mkinstalldirs /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8 /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8 mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8 rm -rf /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools /bin/sh ../../gcc-4.8-20120920/fixincludes/../mkinstalldirs /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec/gcc mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec/gcc/x86_64-apple-darwin12.2.0 mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec/gcc/x86_64-apple-darwin12.2.0/4.8.0 mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools /bin/sh ../../gcc-4.8-20120920/fixincludes/../mkinstalldirs /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/lib/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools/include mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/lib mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/lib/gcc mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/lib/gcc/x86_64-apple-darwin12.2.0 mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/lib/gcc/x86_64-apple-darwin12.2.0/4.8.0 mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/lib/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools mkdir /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/lib/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools/include /sw/bin/ginstall -c -m 644 ../../gcc-4.8-20120920/fixincludes/README-fixinc \ /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/lib/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools/include/README /sw/bin/ginstall -c fixinc.sh /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools/fixinc.sh /sw/bin/ginstall -c fixincl \ /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools/fixincl /sw/bin/ginstall -c mkheaders /sw/src/fink.build/root-gcc48-4.8.0-1000/sw/lib/gcc4.8/libexec/gcc/x86_64-apple-darwin12.2.0/4.8.0/install-tools/mkheaders g++ -c -g -O2 -DIN_GCC -fno-exceptions -fno-rtti -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc-4.8-20120920/gcc -I../../gcc-4.8-20120920/gcc/. -I../../gcc-4.8-20120920/gcc/../include -I../../gcc-4.8-20120920/gcc/../libcpp/include -I/sw/include -I/sw/include -I../../gcc-4.8-20120920/gcc/../libdecnumber -I../../gcc-4.8-20120920/gcc/../libdecnumber/dpd -I../libdecnumber -DCLOOG_INT_GMP -I/sw/include -I/sw/include -I/sw/include ../../gcc-4.8-20120920/gcc/lto-symtab.c -o lto-symtab.o clang: error: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated make[2]: *** [lto-symtab.o] Error 1 make[1]: *** [install-gcc] Error 2 make: *** [install] Error 2