From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1791) id A94C03851165; Thu, 10 Apr 2025 18:11:51 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A94C03851165 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1744308711; bh=olGa9RP7NBxCHNvRe4tFbRwtLzJeycyGnzk5Hx2D3n0=; h=From:To:Subject:Date:From; b=a6YH4absNkpKnuYrBVbJPxjDqS+SobeACwvD1Ed6mjIR6A0yNE8/rR9eXy2jAZ5F9 /MGQQNTNqSFhPICVIZPtff9GfKJpoO9lRqxeoWRzC8RZsavJXzcmZYVvdh28H/aZJq 5McInteH5c+uX4JhqEe61+yBmimxj1S2vLIz66kU= 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: dc0261830b9f9eb3c70f03c6f80da235e68bae6d X-Git-Newrev: 05697f44029fb1355883accc90e75b20fae08ece Message-Id: <20250410181151.A94C03851165@sourceware.org> Date: Thu, 10 Apr 2025 18:11:51 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=05697f44029fb1355883accc90e75b20fae08ece commit 05697f44029fb1355883accc90e75b20fae08ece 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 | 26 ++++++++++++++++++++++++++ configure.ac | 9 +++++++++ timezone/Makefile | 2 +- 3 files changed, 36 insertions(+), 1 deletion(-) diff --git a/configure b/configure index 7cda641fce..bd9dcd3c09 100755 --- a/configure +++ b/configure @@ -7557,6 +7557,32 @@ 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 ${libc_cv_wno_maybe_uninitialized+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if { ac_try='${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 $ac_status = 0; }; } +then : + libc_cv_wno_maybe_uninitialized=-Wno-maybe-uninitialized +else case e in #( + e) libc_cv_wno_maybe_uninitialized= ;; +esac +fi + ;; +esac +fi +{ printf "%s\n" "$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 ${libc_cv_have_section_quotes+y} diff --git a/configure.ac b/configure.ac index 0b0d8875cc..b4814e14ed 100644 --- a/configure.ac +++ b/configure.ac @@ -1425,6 +1425,15 @@ LIBC_CONFIG_VAR([config-cflags-wno-ignored-attributes], [$libc_cv_wno_ignored_attributes]) AC_SUBST(libc_cv_test_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 <