During bootstrapping gcc-4.0.0 (release) with f95 enabled, this segfault occurs:
#/users/rtems/src/rpms/BUILD/rtems-4.7-h8300-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/gcc/gfortran -B/users/rtems/src/rpms/BUILD/rtems-4.7-h8300-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/gcc/ -nostdinc -B/users/rtems/src/rpms/BUILD/rtems-4.7-h8300-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/h8300-rtems4.7/newlib/ -isystem /users/rtems/src/rpms/BUILD/rtems-4.7-h8300-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/h8300-rtems4.7/newlib/targ-include -isystem /users/rtems/src/rpms/BUILD/rtems-4.7-h8300-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/gcc-4.0.0/newlib/libc/include -B/opt/rtems-4.7/h8300-rtems4.7/bin/ -B/opt/rtems-4.7/h8300-rtems4.7/lib/ -isystem /opt/rtems-4.7/h8300-rtems4.7/include -isystem /opt/rtems-4.7/h8300-rtems4.7/sys-include -Wall -fno-repack-arrays -fno-underscoring -c ../../../gcc-4.0.0/libgfortran/intrinsics/selected_int_kind.f90 -o selected_int_kind.o <built-in>:0: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. make[1]: *** [selected_int_kind.lo] Error 1 gdb reveils this to be cause: Program received signal SIGSEGV, Segmentation fault. show_locus (offset=0, loc=0x833a17c) at ../../gcc-4.0.0/gcc/fortran/error.c:136 135 lb = loc->lb; 136 f = lb->file; With (gdb) print *loc $10 = {nextc = 0x0, lb = 0x0} I.e. a NULL pointer dereference in error.c:136 -- Summary: Segfault while compiling libgfortran/intrinsics/selected_int_kind.f90 Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: corsepiu at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org GCC target triplet: h8300-rtems4.7 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21203
