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* [gcc r12-4146] d: gdc driver ignores -static-libstdc++ when automatically linking libstdc++ library
@ 2021-10-04 15:59 Iain Buclaw
0 siblings, 0 replies; only message in thread
From: Iain Buclaw @ 2021-10-04 15:59 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:c86a16b07b76604a8e3d556f135babab80e2b747
commit r12-4146-gc86a16b07b76604a8e3d556f135babab80e2b747
Author: Iain Buclaw <ibuclaw@gdcproject.org>
Date: Sun Oct 3 16:02:24 2021 +0200
d: gdc driver ignores -static-libstdc++ when automatically linking libstdc++ library
Adds handling of `-static-libstc++' in the gdc driver, so that libstdc++
is appropriately linked if libstdc++ is either needed or seen on the
command-line.
PR d/102574
gcc/d/ChangeLog:
* d-spec.cc (lang_specific_driver): Link libstdc++ statically if
-static-libstdc++ was given on command-line.
Diff:
---
gcc/d/d-spec.cc | 43 ++++++++++++++++++++++++++++++++++---------
1 file changed, 34 insertions(+), 9 deletions(-)
diff --git a/gcc/d/d-spec.cc b/gcc/d/d-spec.cc
index 16ff1539e9f..5adc662c6f2 100644
--- a/gcc/d/d-spec.cc
+++ b/gcc/d/d-spec.cc
@@ -83,6 +83,9 @@ lang_specific_driver (cl_decoded_option **in_decoded_options,
/* "-lstdc++" if it appears on the command line. */
const cl_decoded_option *saw_libcxx = 0;
+ /* True if we saw `-static-libstdc++'. */
+ bool saw_static_libcxx = false;
+
/* Whether we need the C++ STD library. */
bool need_stdcxx = false;
@@ -248,6 +251,11 @@ lang_specific_driver (cl_decoded_option **in_decoded_options,
shared_libgcc = false;
break;
+ case OPT_static_libstdc__:
+ saw_static_libcxx = true;
+ args[i] |= SKIPOPT;
+ break;
+
case OPT_static_libphobos:
if (phobos_library != PHOBOS_NOLINK)
phobos_library = PHOBOS_STATIC;
@@ -452,16 +460,33 @@ lang_specific_driver (cl_decoded_option **in_decoded_options,
#endif
}
- if (saw_libcxx)
- new_decoded_options[j++] = *saw_libcxx;
- else if (need_stdcxx)
+ if (saw_libcxx || need_stdcxx)
{
- generate_option (OPT_l,
- (saw_profile_flag
- ? LIBSTDCXX_PROFILE
- : LIBSTDCXX),
- 1, CL_DRIVER, &new_decoded_options[j++]);
- added_libraries++;
+#ifdef HAVE_LD_STATIC_DYNAMIC
+ if (saw_static_libcxx && !static_link)
+ {
+ generate_option (OPT_Wl_, LD_STATIC_OPTION, 1, CL_DRIVER,
+ &new_decoded_options[j++]);
+ }
+#endif
+ if (saw_libcxx)
+ new_decoded_options[j++] = *saw_libcxx;
+ else if (need_stdcxx)
+ {
+ generate_option (OPT_l,
+ (saw_profile_flag
+ ? LIBSTDCXX_PROFILE
+ : LIBSTDCXX),
+ 1, CL_DRIVER, &new_decoded_options[j++]);
+ added_libraries++;
+ }
+#ifdef HAVE_LD_STATIC_DYNAMIC
+ if (saw_static_libcxx && !static_link)
+ {
+ generate_option (OPT_Wl_, LD_DYNAMIC_OPTION, 1, CL_DRIVER,
+ &new_decoded_options[j++]);
+ }
+#endif
}
if (shared_libgcc && !static_link)
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