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From: Adhemerval Zanella <azanella@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc/azanella/clang] configure: Use -Wno-restrict iff compiler supports it Date: Wed, 17 Apr 2024 20:13:46 +0000 (GMT) [thread overview] Message-ID: <20240417201346.C39B13858C62@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1edd4ace3765da93cb175b5d83cb846102322148 commit 1edd4ace3765da93cb175b5d83cb846102322148 Author: Adhemerval Zanella <adhemerval.zanella@linaro.org> Date: Thu Jul 27 15:49:52 2023 -0300 configure: Use -Wno-restrict iff compiler supports it Diff: --- configure | 24 ++++++++++++++++++++++++ configure.ac | 8 ++++++++ libio/Makefile | 4 ++-- 3 files changed, 34 insertions(+), 2 deletions(-) diff --git a/configure b/configure index d5ce50849a..c01ae25e90 100755 --- a/configure +++ b/configure @@ -7218,6 +7218,30 @@ 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 for -Wno-restrict" >&5 +printf %s "checking for -Wno-restrict... " >&6; } +if test ${libc_cv_wno_restrict+y} +then : + printf %s "(cached) " >&6 +else $as_nop + if { ac_try='${CC-cc} -Werror -Wno-restrict -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_restrict=-Wno-restrict +else $as_nop + libc_cv_wno_restrict= +fi + +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_wno_restrict" >&5 +printf "%s\n" "$libc_cv_wno_restrict" >&6; } +config_vars="$config_vars +config-cflags-wno-restrict = $libc_cv_wno_restrict" + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -fexcess-precision=standard" >&5 printf %s "checking for -fexcess-precision=standard... " >&6; } if test ${libc_cv_fexcess_precision_standard+y} diff --git a/configure.ac b/configure.ac index 5f75b25105..826d55de64 100644 --- a/configure.ac +++ b/configure.ac @@ -1397,6 +1397,14 @@ AC_CACHE_CHECK([for -Wno-maybe-uninitialized], libc_cv_wno_maybe_uninitialized, LIBC_CONFIG_VAR([config-cflags-wno-maybe-uninitialized], [$libc_cv_wno_maybe_uninitialized]) +AC_CACHE_CHECK([for -Wno-restrict], libc_cv_wno_restrict, [dnl + LIBC_TRY_CC_OPTION([-Werror -Wno-restrict], + [libc_cv_wno_restrict=-Wno-restrict], + [libc_cv_wno_restrict=]) +]) +LIBC_CONFIG_VAR([config-cflags-wno-restrict], + [$libc_cv_wno_restrict]) + AC_CACHE_CHECK([for -fexcess-precision=standard], libc_cv_fexcess_precision_standard, [dnl LIBC_TRY_CC_OPTION([-Werror -fexcess-precision=standard], [libc_cv_fexcess_precision_standard=-fexcess-precision=standard], diff --git a/libio/Makefile b/libio/Makefile index 27623c92a9..385bee9b7d 100644 --- a/libio/Makefile +++ b/libio/Makefile @@ -187,8 +187,8 @@ CFLAGS-tst-bz24153.c += $(no-fortify-source) CFLAGS-tst_putwc.c += -DOBJPFX=\"$(objpfx)\" # These test cases intentionally use overlapping arguments -CFLAGS-tst-sprintf-ub.c += -Wno-restrict $(no-fortify-source) -CFLAGS-tst-sprintf-chk-ub.c += -Wno-restrict $(no-fortify-source) +CFLAGS-tst-sprintf-ub.c += $(config-cflags-wno-restrict) $(no-fortify-source) +CFLAGS-tst-sprintf-chk-ub.c += $(config-cflags-wno-restrict) $(no-fortify-source) LDFLAGS-tst-bz24228 = -Wl,--version-script=tst-bz24228.map
next reply other threads:[~2024-04-17 20:13 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-17 20:13 Adhemerval Zanella [this message] -- strict thread matches above, loose matches on Subject: below -- 2024-04-02 15:59 Adhemerval Zanella 2024-02-09 17:38 Adhemerval Zanella 2024-02-07 14:13 Adhemerval Zanella 2024-01-29 18:03 Adhemerval Zanella 2023-12-21 19:00 Adhemerval Zanella 2023-09-28 17:58 Adhemerval Zanella 2023-08-30 12:42 Adhemerval Zanella
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