[Bug fortran/56659] Segfault due to missing libcpp error handler for "gfortran -cpp"

["kapinos at rz dot rwth-aachen.de" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56659

--- Comment #5 from Paul <kapinos at rz dot rwth-aachen.de> ---
Just tried all versions of gfortran available up to 10.2.0: the very same
'internal compiler error' is still reported using the initial reproducer. 

May that be connected to the old Linux we're using (CentOS 7.8)? 

pk224850@linuxc2:~/bugreports/GCC/007-ICE_unavailbale_Idir[524]$ ./runme007.sh  
mkdir: cannot create directory ‘foo’: Permission denied
------------------------------------------------------------------------------
f951: Warning: Include directory ‘./foo/bar’: Permission denied
f951: internal compiler error: in cpp_diagnostic_at, at libcpp/errors.c:41
0x14f3468 cpp_diagnostic_at
        ../../../SOURCES/gcc-10.2.0/libcpp/errors.c:41
0x14f3468 cpp_diagnostic_at
        ../../../SOURCES/gcc-10.2.0/libcpp/errors.c:34
0x14f3468 cpp_diagnostic
        ../../../SOURCES/gcc-10.2.0/libcpp/errors.c:75
0x14f34f9 cpp_error(cpp_reader*, cpp_diagnostic_level, char const*, ...)
        ../../../SOURCES/gcc-10.2.0/libcpp/errors.c:89
0x9d5326 remove_duplicates
        ../../../SOURCES/gcc-10.2.0/gcc/incpath.c:260
0x9d58c9 merge_include_chains
        ../../../SOURCES/gcc-10.2.0/gcc/incpath.c:371
0x9d58c9 register_include_chains(cpp_reader*, char const*, char const*, char
const*, int, int, int)
        ../../../SOURCES/gcc-10.2.0/gcc/incpath.c:498
0x654169 gfc_cpp_register_include_paths()
        ../../../SOURCES/gcc-10.2.0/gcc/fortran/cpp.c:722
0x654169 gfc_cpp_post_options()
        ../../../SOURCES/gcc-10.2.0/gcc/fortran/cpp.c:494
0x6c8b50 gfc_post_options(char const**)
        ../../../SOURCES/gcc-10.2.0/gcc/fortran/options.c:488
0x63044a process_options
        ../../../SOURCES/gcc-10.2.0/gcc/toplev.c:1384
0x63044a do_compile
        ../../../SOURCES/gcc-10.2.0/gcc/toplev.c:2200
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
------------------------------------------------------------------------------
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/usr/local_rwth/sw/gcc/10.2.0/libexec/gcc/x86_64-pc-linux-gnu/10.2.0/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
Target: x86_64-pc-linux-gnu
Configured with: ../../SOURCES/gcc-10.2.0/configure
--prefix=/usr/local_rwth/sw/gcc/10.2.0 --enable-offload-targets=nvptx-none
--enable-languages=c,c++,objc,obj-c++,fortran --enable-lto
--enable-install-libiberty
--with-gmp=/w0/tmp/pk224850/GCC/build/destdir/usr/local_rwth/sw/gcc/10.2.0
--with-mpfr=/w0/tmp/pk224850/GCC/build/destdir/usr/local_rwth/sw/gcc/10.2.0
--with-mpc=/w0/tmp/pk224850/GCC/build/destdir/usr/local_rwth/sw/gcc/10.2.0
--with-ppl=/w0/tmp/pk224850/GCC/build/destdir/usr/local_rwth/sw/gcc/10.2.0
--with-isl --with-default-libstdcxx-abi=gcc4-compatible
LDFLAGS='-Wl,-rpath,/usr/local_rwth/sw/gcc/10.2.0/lib64
-Wl,-rpath,/usr/local_rwth/sw/gcc/10.2.0/lib'
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.2.0 (GCC)