diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2022-08-17 17:00:33 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2022-08-17 17:03:30 +0200 |
| commit | 745be54bd6634fe63d6be83615e264c83d2ae9f9 (patch) | |
| tree | 234d7a6f04483a8a083d4532cb76ae6da0930dc9 /gcc/config | |
| parent | 1513512ec7d0751cba30c9c8804f2be462acfb9b (diff) | |
| download | gcc-745be54bd6634fe63d6be83615e264c83d2ae9f9.zip gcc-745be54bd6634fe63d6be83615e264c83d2ae9f9.tar.gz gcc-745be54bd6634fe63d6be83615e264c83d2ae9f9.tar.bz2 | |
fortran: Add -static-libquadmath support [PR46539]
The following patch is a revival of the
https://gcc.gnu.org/legacy-ml/gcc-patches/2014-10/msg00771.html
patch. While trunk configured against recent glibc and with linker
--as-needed support doesn't really need to link against -lquadmath
anymore, there are still other targets where libquadmath is still in
use.
As has been discussed, making -static-libgfortran imply statically
linking both libgfortran and libquadmath is undesirable because of
the significant licensing differences between the 2 libraries.
Compared to the 2014 patch, this one doesn't handle -lquadmath
addition in the driver, which to me looks incorrect, libgfortran
configure determines where in libgfortran.spec -lquadmath should
be present if at all and with what it should be wrapped, but
analyzes gfortran -### -static-libgfortran stderr and based on
that figures out what gcc/configure.ac determined.
2022-08-17 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
Jakub Jelinek <jakub@redhat.com>
PR fortran/46539
gcc/
* common.opt (static-libquadmath): New option.
* gcc.cc (driver_handle_option): Always accept -static-libquadmath.
* config/darwin.h (LINK_SPEC): Handle -static-libquadmath.
gcc/fortran/
* lang.opt (static-libquadmath): New option.
* invoke.texi (-static-libquadmath): Document it.
* options.cc (gfc_handle_option): Error out if -static-libquadmath
is passed but we do not support it.
libgfortran/
* acinclude.m4 (LIBQUADSPEC): From $FC -static-libgfortran -###
output determine -Bstatic/-Bdynamic, -bstatic/-bdynamic,
-aarchive_shared/-adefault linker support or Darwin remapping
of -lgfortran to libgfortran.a%s and use that around or instead
of -lquadmath in LIBQUADSPEC.
* configure: Regenerated.
Co-Authored-By: Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/darwin.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/config/darwin.h b/gcc/config/darwin.h index f82ec62..c5e1ba8 100644 --- a/gcc/config/darwin.h +++ b/gcc/config/darwin.h @@ -443,6 +443,7 @@ extern GTY(()) int darwin_ms_struct; %:replace-outfile(-lobjc libobjc-gnu.a%s); \ :%:replace-outfile(-lobjc -lobjc-gnu )}}\ %{static|static-libgcc|static-libgfortran:%:replace-outfile(-lgfortran libgfortran.a%s)}\ + %{static|static-libgcc|static-libquadmath:%:replace-outfile(-lquadmath libquadmath.a%s)}\ %{static|static-libgcc|static-libphobos:%:replace-outfile(-lgphobos libgphobos.a%s)}\ %{static|static-libgcc|static-libstdc++|static-libgfortran:%:replace-outfile(-lgomp libgomp.a%s)}\ %{static|static-libgcc|static-libstdc++:%:replace-outfile(-lstdc++ libstdc++.a%s)}\ |