From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1791) id 92D0D3858288; Fri, 28 Oct 2022 17:46:09 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 92D0D3858288 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1666979169; bh=7MgrndxR0mLKBXXDSajMRJMnLIo+gG8OjYMbPfGs7Fc=; h=From:To:Subject:Date:From; b=lzcgZ1ROSVG6X8JNXvlPRcKLjtlJAgswL1idxtu+i8yKyj5LJ7ijUVMMZrLGe869/ x1BAnWJnFjeHmy5Gz+hjX5WEDBeX7WWLGZxDF6EAHVi9kb66lyiZLt45CUmvOfuQHo XwFMaDUQNyqeG7lOH/F5UTC4WY+LeiOCLAZ6XLlc= 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] Only use -finput-charset=ascii iff compiler supports it X-Act-Checkin: glibc X-Git-Author: Adhemerval Zanella X-Git-Refname: refs/heads/azanella/clang X-Git-Oldrev: c2f3f9d1ddc1f40bbf9f210a372b99a5fd00d90c X-Git-Newrev: df5a6c220c9c26d6ddcfda68a3df013faf57287d Message-Id: <20221028174609.92D0D3858288@sourceware.org> Date: Fri, 28 Oct 2022 17:46:09 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=df5a6c220c9c26d6ddcfda68a3df013faf57287d commit df5a6c220c9c26d6ddcfda68a3df013faf57287d Author: Adhemerval Zanella Date: Fri Mar 25 13:58:03 2022 -0300 Only use -finput-charset=ascii iff compiler supports it Diff: --- Makefile | 2 ++ Rules | 2 ++ configure | 22 ++++++++++++++++++++++ configure.ac | 10 ++++++++++ scripts/check-installed-headers.sh | 12 +++++++++--- 5 files changed, 45 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 179dd478ff..778dd20eab 100644 --- a/Makefile +++ b/Makefile @@ -544,6 +544,7 @@ $(objpfx)check-installed-headers-c.out: \ scripts/check-installed-headers.sh $(headers) $(SHELL) $(..)scripts/check-installed-headers.sh c \ "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \ + $(config-cflags-charset-ascii) \ $(headers) > $@; \ $(evaluate-test) @@ -554,6 +555,7 @@ $(objpfx)check-installed-headers-cxx.out: \ scripts/check-installed-headers.sh $(headers) $(SHELL) $(..)scripts/check-installed-headers.sh c++ \ "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \ + $(config-cflags-charset-ascii) \ $(headers) > $@; \ $(evaluate-test) endif # $(CXX) diff --git a/Rules b/Rules index ac9455d6a7..91cf297aa5 100644 --- a/Rules +++ b/Rules @@ -90,6 +90,7 @@ $(objpfx)check-installed-headers-c.out: \ $(..)scripts/check-installed-headers.sh $(headers) $(SHELL) $(..)scripts/check-installed-headers.sh c \ "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \ + $(config-cflags-charset-ascii) \ $(headers) > $@; \ $(evaluate-test) @@ -102,6 +103,7 @@ $(objpfx)check-installed-headers-cxx.out: \ $(..)scripts/check-installed-headers.sh $(headers) $(SHELL) $(..)scripts/check-installed-headers.sh c++ \ "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \ + $(config-cflags-charset-ascii) \ $(headers) > $@; \ $(evaluate-test) endif # $(CXX) diff --git a/configure b/configure index 9b3f3ffa5d..dba81022bf 100755 --- a/configure +++ b/configure @@ -6581,6 +6581,28 @@ $as_echo "$libc_cv_cc_trampoline" >&6; } config_vars="$config_vars have-cc-trampoline = $libc_cv_cc_trampoline" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -finput-charset=ascii" >&5 +$as_echo_n "checking if $CC supports -finput-charset=ascii... " >&6; } +if ${libc_cv_cc_charset_ascii+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -Werror -finput-charset=ascii -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_cc_charset_ascii=yes +else + libc_cv_cc_charset_ascii=no +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_charset_ascii" >&5 +$as_echo "$libc_cv_cc_charset_ascii" >&6; } +config_vars="$config_vars +config-cflags-charset-ascii = $libc_cv_cc_charset_ascii" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libgd" >&5 $as_echo_n "checking for libgd... " >&6; } if test "$with_gd" != "no"; then diff --git a/configure.ac b/configure.ac index fbc24f9119..149a897ce1 100644 --- a/configure.ac +++ b/configure.ac @@ -1626,6 +1626,16 @@ rm -f conftest*]) LIBC_CONFIG_VAR([have-cc-trampoline], [$libc_cv_cc_trampoline]) +dnl Check if -finput-charset accepts ascii +AC_CACHE_CHECK([if $CC supports -finput-charset=ascii], + libc_cv_cc_charset_ascii, [dnl +LIBC_TRY_CC_OPTION([-Werror -finput-charset=ascii], + [libc_cv_cc_charset_ascii=yes], + [libc_cv_cc_charset_ascii=no]) +]) +LIBC_CONFIG_VAR([config-cflags-charset-ascii], + [$libc_cv_cc_charset_ascii]) + dnl Check whether we have the gd library available. AC_MSG_CHECKING(for libgd) if test "$with_gd" != "no"; then diff --git a/scripts/check-installed-headers.sh b/scripts/check-installed-headers.sh index 0876d2643a..457902d3b4 100644 --- a/scripts/check-installed-headers.sh +++ b/scripts/check-installed-headers.sh @@ -29,8 +29,8 @@ cxx_modes="-std=c++98 -std=gnu++98 -std=c++11 -std=gnu++11" # These are probably the most commonly used three. lib_modes="-D_DEFAULT_SOURCE=1 -D_GNU_SOURCE=1 -D_XOPEN_SOURCE=700" -if [ $# -lt 3 ]; then - echo "usage: $0 c|c++ \"compile command\" header header header..." >&2 +if [ $# -lt 4 ]; then + echo "usage: $0 c|c++ \"compile command\" \"yes|no\" header header header..." >&2 exit 2 fi case "$1" in @@ -49,6 +49,12 @@ esac shift cc_cmd="$1" shift +if [ "$1" = "yes" ]; then + finputcharset="-finput-charset=ascii" +else + finputcharset="" +fi +shift trap "rm -f '$cih_test_c'" 0 failed=0 @@ -118,7 +124,7 @@ $expanded_lib_mode #include <$header> int avoid_empty_translation_unit; EOF - if $cc_cmd -finput-charset=ascii -fsyntax-only $lang_mode \ + if $cc_cmd $finputcharset -fsyntax-only $lang_mode \ "$cih_test_c" 2>&1 then : else failed=1