http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40959
--- Comment #24 from Anton Shterenlikht <mexas at bristol dot ac.uk> 2011-02-22 09:41:48 UTC --- The error now is: libtool: compile: /usr/ports/lang/gcc46/work/build/./gcc/xgcc -B/usr/ports/lang/gcc46/work/build/./ gcc/ -B/usr/local/ia64-portbld-freebsd9.0/bin/ -B/usr/local/ia64-portbld-freebsd9.0/lib/ -isystem /u sr/local/ia64-portbld-freebsd9.0/include -isystem /usr/local/ia64-portbld-freebsd9.0/sys-include -DH AVE_CONFIG_H -I. -I../.././../gcc-4.6-20110212/libgfortran -iquote../.././../gcc-4.6-20110212/libgfo rtran/io -I../.././../gcc-4.6-20110212/libgfortran/../gcc -I../.././../gcc-4.6-20110212/libgfortran/ ../gcc/config -I../.././gcc -D_GNU_SOURCE -std=gnu99 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wextra -Wwrite-strings -fcx-fortran-rules -ffunction-sections -fdata-section s -g -O2 -pipe -I/usr/local/include -fno-strict-aliasing -MT backtrace.lo -MD -MP -MF .deps/backtrac e.Tpo -c ../.././../gcc-4.6-20110212/libgfortran/runtime/backtrace.c -fPIC -DPIC -o .libs/backtrace .o In file included from ../.././../gcc-4.6-20110212/libgfortran/fmain.c:4:0: ../.././../gcc-4.6-20110212/libgfortran/libgfortran.h:53:29: fatal error: quadmath_weak.h: No such f ile or directory compilation terminated. In file included from ../.././../gcc-4.6-20110212/libgfortran/runtime/backtrace.c:25:0: ../.././../gcc-4.6-20110212/libgfortran/libgfortran.h:53:29: fatal error: quadmath_weak.h: No such f ile or directory compilation terminated. gmake[3]: *** [fmain.lo] Error 1 gmake[3]: *** Waiting for unfinished jobs.... gmake[3]: *** [backtrace.lo] Error 1 gmake[3]: Leaving directory `/usr/ports/lang/gcc46/work/build/ia64-portbld-freebsd9.0/libgfortran' Please see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47648