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[PATCH] Remove -Wabi from libstdc++ build options
- From: Bernd Edlinger <bernd dot edlinger at hotmail dot de>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, "libstdc++ at gcc dot gnu dot org" <libstdc++ at gcc dot gnu dot org>, Jonathan Wakely <jwakely at redhat dot com>
- Date: Sat, 30 Jun 2018 20:48:32 +0000
- Subject: [PATCH] Remove -Wabi from libstdc++ build options
Hi,
the -Wabi option prints a warning as follows:
cc1plus: warning: -Wabi won't warn about anything [-Wabi]
cc1plus: note: -Wabi warns about differences from the most up-to-date
ABI, which is also used by default
cc1plus: note: use e.g. -Wabi=11 to warn about changes from GCC 7
This happens many times while building libstdc++, and as the warning
explains, it is good for nothing, so this patch removes it.
Bootstrapped and reg-tested on x86_64-pc-linux-gnu.
Is it OK for trunk?
Thanks
Bernd.
2018-06-30 Bernd Edlinger <bernd.edlinger@hotmail.de>
* acinclude.m4 (WARN_FLAGS): Remove -Wabi.
* configure: Regenerated.
Index: libstdc++-v3/acinclude.m4
===================================================================
--- libstdc++-v3/acinclude.m4 (revision 262271)
+++ libstdc++-v3/acinclude.m4 (working copy)
@@ -733,7 +733,7 @@
# OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
AC_SUBST(OPTIMIZE_CXXFLAGS)
- WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi'
+ WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual'
AC_SUBST(WARN_FLAGS)
])
Index: libstdc++-v3/configure
===================================================================
--- libstdc++-v3/configure (revision 262271)
+++ libstdc++-v3/configure (working copy)
@@ -81846,7 +81846,7 @@
# OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
- WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi'
+ WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual'