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bfd: Stop using -Wstack-usage=262144 when built with Clang

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Some components of GNU Binutils will pass "-Wstack-usage=262144" when
"GCC >= 5.0" is detected.  However, Clang does not support "-Wstack-usage",
despite that related configuration part in bfd/warning.m4 handles the latest
Clang (15.0.0 as of this writing) as "GCC >= 5.0".

The option "-Wstack-usage" was ignored when the first version of Clang is
released but even this "ignoring" behavior is removed before Clang 4.0.0.
So, if we give Clang "-Wstack-usage=262144", it generates a warning, making
the build failure.

This commit checks "__clang__" macro to prevent adding the option if the
compiler is identified as Clang.

bfd/ChangeLog:

	* warning.m4: Stop appending "-Wstack-usage=262144" option when
	compiled with Clang.
	* configure: Regenerate.

binutils/ChangeLog:

	* configure: Regenerate.

gas/ChangeLog:

	* configure: Regenerate.

gold/ChangeLog:

	* configure: Regenerate.

gprof/ChangeLog:

	* configure: Regenerate.

ld/ChangeLog:

	* configure: Regenerate.

opcodes/ChangeLog:

	* configure: Regenerate.
This commit is contained in:
Tsukasa OI
2022-09-10 17:08:13 +00:00
parent fdbca36115
commit 491cf3178f
8 changed files with 130 additions and 2 deletions
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18
gprof/configure vendored
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@@ -11890,10 +11890,19 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
$EGREP "(^[0-4]$|^__GNUC__$)" >/dev/null 2>&1; then :
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
__clang__
_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
$EGREP "^__clang__$" >/dev/null 2>&1; then :
GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144"
fi
rm -f conftest*
fi
rm -f conftest*
# Set WARN_WRITE_STRINGS if the compiler supports -Wwrite-strings.
WARN_WRITE_STRINGS=""
@@ -11935,10 +11944,19 @@ if (eval "$ac_cpp_for_build conftest.$ac_ext") 2>&5 |
$EGREP "(^[0-4]$|^__GNUC__$)" >/dev/null 2>&1; then :
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
__clang__
_ACEOF
if (eval "$ac_cpp_for_build conftest.$ac_ext") 2>&5 |
$EGREP "^__clang__$" >/dev/null 2>&1; then :
GCC_WARN_CFLAGS_FOR_BUILD="$GCC_WARN_CFLAGS_FOR_BUILD -Wstack-usage=262144"
fi
rm -f conftest*
fi
rm -f conftest*
# Check whether --enable-werror was given.
if test "${enable_werror+set}" = set; then :