From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1791) id 65605394743A; Wed, 16 Mar 2022 18:02:46 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 65605394743A 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: b39b7ec7d9a5aaf235496a2afa64f5d7343c7867 X-Git-Newrev: 9c7b1cd8055357c2c62a6271c499a2dd11dcc7d5 Message-Id: <20220316180246.65605394743A@sourceware.org> Date: Wed, 16 Mar 2022 18:02:46 +0000 (GMT) X-BeenThere: glibc-cvs@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Glibc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Mar 2022 18:02:46 -0000 https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9c7b1cd8055357c2c62a6271c499a2dd11dcc7d5 commit 9c7b1cd8055357c2c62a6271c499a2dd11dcc7d5 Author: Adhemerval Zanella Date: Thu Mar 10 16:40:29 2022 -0300 configure: Use -Wno-maybe-uninitialized iff compiler supports it Diff: --- configure | 22 ++++++++++++++++++++++ configure.ac | 8 ++++++++ timezone/Makefile | 2 +- 3 files changed, 31 insertions(+), 1 deletion(-) diff --git a/configure b/configure index 02cfdf9e47..e0589dbebe 100755 --- a/configure +++ b/configure @@ -6413,6 +6413,28 @@ $as_echo "$libc_cv_mtls_dialect_gnu2" >&6; } config_vars="$config_vars have-mtls-dialect-gnu2 = $libc_cv_mtls_dialect_gnu2" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wno-maybe-uninitialized" >&5 +$as_echo_n "checking for -Wno-maybe-uninitialized... " >&6; } +if ${libc_cv_wno_maybe_uninitialized+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -Werror -Wno-maybe-uninitialized -xc /dev/null -S -o /dev/null' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then : + libc_cv_wno_maybe_uninitialized=-Wno-maybe-uninitialized +else + libc_cv_wno_maybe_uninitialized= +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_wno_maybe_uninitialized" >&5 +$as_echo "$libc_cv_wno_maybe_uninitialized" >&6; } +config_vars="$config_vars +config-cflags-wno-maybe-uninitialized = $libc_cv_wno_maybe_uninitialized" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether cc puts quotes around section names" >&5 $as_echo_n "checking whether cc puts quotes around section names... " >&6; } if ${libc_cv_have_section_quotes+:} false; then : diff --git a/configure.ac b/configure.ac index 224e02464a..d5b5b5e88c 100644 --- a/configure.ac +++ b/configure.ac @@ -1535,6 +1535,14 @@ rm -f conftest*]) AC_SUBST(libc_cv_mtls_dialect_gnu2) LIBC_CONFIG_VAR([have-mtls-dialect-gnu2], [$libc_cv_mtls_dialect_gnu2]) +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 <