* [Bug fortran/97308] OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check
2020-10-06 16:48 [Bug fortran/97308] New: OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check tkoenig at gcc dot gnu.org
@ 2020-10-06 16:55 ` schwab@linux-m68k.org
2020-10-06 17:06 ` tkoenig at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: schwab@linux-m68k.org @ 2020-10-06 16:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97308
--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
You need to attach the config.log file in `/home/tkoenig/trunk-bin/gmp'.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug fortran/97308] OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check
2020-10-06 16:48 [Bug fortran/97308] New: OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check tkoenig at gcc dot gnu.org
2020-10-06 16:55 ` [Bug fortran/97308] " schwab@linux-m68k.org
@ 2020-10-06 17:06 ` tkoenig at gcc dot gnu.org
2020-10-06 17:41 ` redi at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: tkoenig at gcc dot gnu.org @ 2020-10-06 17:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97308
--- Comment #2 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Created attachment 49319
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49319&action=edit
config.log from gmp subdirectory
Here it is.
For what it is worth, I now tried bootstrapping with CC=cc and CXX=c++,
and things seem to be working (so far).
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug fortran/97308] OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check
2020-10-06 16:48 [Bug fortran/97308] New: OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check tkoenig at gcc dot gnu.org
2020-10-06 16:55 ` [Bug fortran/97308] " schwab@linux-m68k.org
2020-10-06 17:06 ` tkoenig at gcc dot gnu.org
@ 2020-10-06 17:41 ` redi at gcc dot gnu.org
2020-10-06 19:23 ` tkoenig at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: redi at gcc dot gnu.org @ 2020-10-06 17:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97308
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The /lib/cpp error is a bit misleading, because that's the last thing it tries
to find as a C++ compiler, after exhausting g++ -std=c++11 and various other
options that fail with:
configure:19863: g++ -std=c++11 -E conftest.cpp
cc1plus: error: unrecognized command line option "-std=c++11"
As stated in the install docs, you need a C++11 compiler, and the system GCC on
OpenBSD probably doesn't recognise the -std=c++11 option. This is not a bug.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug fortran/97308] OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check
2020-10-06 16:48 [Bug fortran/97308] New: OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check tkoenig at gcc dot gnu.org
` (2 preceding siblings ...)
2020-10-06 17:41 ` redi at gcc dot gnu.org
@ 2020-10-06 19:23 ` tkoenig at gcc dot gnu.org
2020-10-06 19:36 ` redi at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: tkoenig at gcc dot gnu.org @ 2020-10-06 19:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97308
--- Comment #4 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Created attachment 49320
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49320&action=edit
config.log from failing libgomp
OK, so that one isn't a bug.
I hope you don't mind if I put in the next failure after
bootstrapping with the system compiler, clang 8 (setting CC to
cc and CXX to c++):
gmake[4]: Leaving directory
'/home/tkoenig/trunk-clang/x86_64-unknown-openbsd6.7/libgcc'
gmake[3]: Leaving directory
'/home/tkoenig/trunk-clang/x86_64-unknown-openbsd6.7/libgcc'
mkdir x86_64-unknown-openbsd6.7/libgomp
Checking multilib configuration for libgomp...
Configuring stage 1 in x86_64-unknown-openbsd6.7/libgomp
configure: creating cache ./config.cache
checking for --enable-version-specific-runtime-libs... no
checking for --enable-generated-files-in-srcdir... no
checking build system type... x86_64-unknown-openbsd6.7
checking host system type... x86_64-unknown-openbsd6.7
checking target system type... x86_64-unknown-openbsd6.7
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /usr/local/bin/gmkdir -p
checking for gawk... awk
checking whether gmake sets $(MAKE)... yes
checking whether gmake supports nested variables... yes
checking for x86_64-unknown-openbsd6.7-gcc...
/home/tkoenig/trunk-clang/./gcc/xgcc -B/home/tkoenig/trunk-clang/./gcc/
-B/home/tkoenig/x86_64-unknown-openbsd6.7/bin/
-B/home/tkoenig/x86_64-unknown-openbsd6.7/lib/ -isystem
/home/tkoenig/x86_64-unknown-openbsd6.7/include -system
/home/tkoenig/x86_64-unknown-openbsd6.7/sys-include -fno-checking
checking whether the C compiler works... no
configure: error: in
`/home/tkoenig/trunk-clang/x86_64-unknown-openbsd6.7/libgomp':
configure: error: C compiler cannot create executables
See `config.log' for more details
gmake[2]: *** [Makefile:24794: configure-stage1-target-libgomp] Error 77
gmake[2]: Leaving directory '/home/tkoenig/trunk-clang'
gmake[1]: *** [Makefile:27002: stage1-bubble] Error 2
gmake[1]: Leaving directory '/home/tkoenig/trunk-clang'
gmake: *** [Makefile:1004: all] Error 2
obsd$
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug fortran/97308] OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check
2020-10-06 16:48 [Bug fortran/97308] New: OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check tkoenig at gcc dot gnu.org
` (3 preceding siblings ...)
2020-10-06 19:23 ` tkoenig at gcc dot gnu.org
@ 2020-10-06 19:36 ` redi at gcc dot gnu.org
2020-10-06 20:02 ` tkoenig at gcc dot gnu.org
2020-10-07 5:12 ` [Bug bootstrap/97308] " tkoenig at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: redi at gcc dot gnu.org @ 2020-10-06 19:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97308
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
ld: error: unable to find library -lc
Huh, not sure what causes that one.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug fortran/97308] OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check
2020-10-06 16:48 [Bug fortran/97308] New: OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check tkoenig at gcc dot gnu.org
` (4 preceding siblings ...)
2020-10-06 19:36 ` redi at gcc dot gnu.org
@ 2020-10-06 20:02 ` tkoenig at gcc dot gnu.org
2020-10-07 5:12 ` [Bug bootstrap/97308] " tkoenig at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: tkoenig at gcc dot gnu.org @ 2020-10-06 20:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97308
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=97304
--- Comment #6 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
The failing config.log from libgomp contains
ld: error: unable to find library -lc
so this might be closely related to / a duplicate of
PR 97304, which has the identical error message for
a different BSD version with clang.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/97308] OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check
2020-10-06 16:48 [Bug fortran/97308] New: OpenBSD bootstrap fails with error: C++ preprocessor "/lib/cpp" fails sanity check tkoenig at gcc dot gnu.org
` (5 preceding siblings ...)
2020-10-06 20:02 ` tkoenig at gcc dot gnu.org
@ 2020-10-07 5:12 ` tkoenig at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: tkoenig at gcc dot gnu.org @ 2020-10-07 5:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97308
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|fortran |bootstrap
--- Comment #7 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Not really a Fortran bug, I probably clicked on that out of habit.
Regarding the original issue:
I still think it is a bug to unconditionally use a gcc when that is too old,
when a new version of clang is available which should work in principle
(modulo the -lc issue).
^ permalink raw reply [flat|nested] 8+ messages in thread