From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1791) id 1A1F238582A1; Wed, 7 Feb 2024 14:04:25 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1A1F238582A1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1707314665; bh=7t2AmtYaD7iV5S2KTkXOIRIRikSdbUExg5G2Nr3IewQ=; h=From:To:Subject:Date:From; b=b2UD0WBAQGuuybFGDHzjnLKoFw4ZXd2W6CBFKrQCiF+bUQp+cIAGDmZ8mipnPhVU+ Lql7aR3IjTogLwVFY/mZZgS0Z9qujVrTTITdv8cSXUNBAmF9UVEWPzhP/ohnIIHvbo qnNjniUfzHyDkG5JIBTHoMacwT+sjKE/hXjvO0bo= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Adhemerval Zanella To: glibc-cvs@sourceware.org Subject: [glibc/azanella/clang] configure: Use -Wno-maybe-uninitialized iff compiler supports it X-Act-Checkin: glibc X-Git-Author: Adhemerval Zanella X-Git-Refname: refs/heads/azanella/clang X-Git-Oldrev: a74790b6373f265dc16058cc807cf9bfa403fa90 X-Git-Newrev: 9902cd3731adfb95ed578716f0b7317525883de6 Message-Id: <20240207140425.1A1F238582A1@sourceware.org> Date: Wed, 7 Feb 2024 14:04:25 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9902cd3731adfb95ed578716f0b7317525883de6 commit 9902cd3731adfb95ed578716f0b7317525883de6 Author: Adhemerval Zanella Date: Thu Mar 10 16:40:29 2022 -0300 configure: Use -Wno-maybe-uninitialized iff compiler supports it clang does not support the flag. Diff: --- configure | 24 ++++++++++++++++++++++++ configure.ac | 8 ++++++++ timezone/Makefile | 2 +- 3 files changed, 33 insertions(+), 1 deletion(-) diff --git a/configure b/configure index 59ff1e415d..688d9ae6e0 100755 --- a/configure +++ b/configure @@ -7069,6 +7069,30 @@ printf "%s\n" "$libc_cv_wno_ignored_attributes" >&6; } config_vars="$config_vars config-cflags-wno-ignored-attributes = $libc_cv_wno_ignored_attributes" +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -Wno-maybe-uninitialized" >&5 +printf %s "checking for -Wno-maybe-uninitialized... " >&6; } +if test ${libc_cv_wno_maybe_uninitialized+y} +then : + printf %s "(cached) " >&6 +else $as_nop + if { ac_try='${CC-cc} -Werror -Wno-maybe-uninitialized -xc /dev/null -S -o /dev/null' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; } +then : + libc_cv_wno_maybe_uninitialized=-Wno-maybe-uninitialized +else $as_nop + libc_cv_wno_maybe_uninitialized= +fi + +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_wno_maybe_uninitialized" >&5 +printf "%s\n" "$libc_cv_wno_maybe_uninitialized" >&6; } +config_vars="$config_vars +config-cflags-wno-maybe-uninitialized = $libc_cv_wno_maybe_uninitialized" + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether cc puts quotes around section names" >&5 printf %s "checking whether cc puts quotes around section names... " >&6; } if test ${libc_cv_have_section_quotes+y} diff --git a/configure.ac b/configure.ac index 65799e5685..c7f946c774 100644 --- a/configure.ac +++ b/configure.ac @@ -1329,6 +1329,14 @@ rm -f conftest*]) LIBC_CONFIG_VAR([config-cflags-wno-ignored-attributes], [$libc_cv_wno_ignored_attributes]) +AC_CACHE_CHECK([for -Wno-maybe-uninitialized], libc_cv_wno_maybe_uninitialized, [dnl + LIBC_TRY_CC_OPTION([-Werror -Wno-maybe-uninitialized], + [libc_cv_wno_maybe_uninitialized=-Wno-maybe-uninitialized], + [libc_cv_wno_maybe_uninitialized=]) +]) +LIBC_CONFIG_VAR([config-cflags-wno-maybe-uninitialized], + [$libc_cv_wno_maybe_uninitialized]) + AC_CACHE_CHECK(whether cc puts quotes around section names, libc_cv_have_section_quotes, [cat > conftest.c <