configure: Don't check LD -v --help for LIBC_LINKER_FEATURE
When LIBC_LINKER_FEATURE is used to check a linker option with the equal sign, it will likely fail because the LD -v --help output may look like `-z lam-report=[none|warning|error]` while the needle is something like `-z lam-report=warning`. The LD -v --help filter doesn't save much time, so just remove it.
This commit is contained in:
Fangrui Song
parent
f9b152c83f
commit
8438135d34
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@ -224,20 +224,17 @@ AC_DEFUN([LIBC_LINKER_FEATURE],
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[AC_MSG_CHECKING([for linker that supports $1])
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libc_linker_feature=no
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if test x"$gnu_ld" = x"yes"; then
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libc_linker_check=`$LD -v --help 2>/dev/null | grep "\$1"`
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if test -n "$libc_linker_check"; then
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cat > conftest.c <<EOF
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cat > conftest.c <<EOF
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int _start (void) { return 42; }
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EOF
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if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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$2 -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&AS_MESSAGE_LOG_FD])
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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$2 -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&AS_MESSAGE_LOG_FD])
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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fi
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if test $libc_linker_feature = yes; then
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$3
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@ -5979,25 +5979,22 @@ fi
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$as_echo_n "checking for linker that supports -z execstack... " >&6; }
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libc_linker_feature=no
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if test x"$gnu_ld" = x"yes"; then
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libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z execstack"`
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if test -n "$libc_linker_check"; then
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cat > conftest.c <<EOF
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cat > conftest.c <<EOF
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int _start (void) { return 42; }
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,-z,execstack -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,-z,execstack -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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fi
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if test $libc_linker_feature = yes; then
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libc_cv_z_execstack=yes
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@ -6012,25 +6009,22 @@ $as_echo "$libc_linker_feature" >&6; }
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$as_echo_n "checking for linker that supports -z start-stop-gc... " >&6; }
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libc_linker_feature=no
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if test x"$gnu_ld" = x"yes"; then
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libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z start-stop-gc"`
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if test -n "$libc_linker_check"; then
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cat > conftest.c <<EOF
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cat > conftest.c <<EOF
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int _start (void) { return 42; }
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,-z,start-stop-gc -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,-z,start-stop-gc -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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fi
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if test $libc_linker_feature = yes; then
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libc_cv_z_start_stop_gc=yes
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@ -6046,25 +6040,22 @@ have-z-start-stop-gc = $libc_cv_z_start_stop_gc"
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$as_echo_n "checking for linker that supports --depaudit... " >&6; }
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libc_linker_feature=no
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if test x"$gnu_ld" = x"yes"; then
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libc_linker_check=`$LD -v --help 2>/dev/null | grep "\--depaudit"`
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if test -n "$libc_linker_check"; then
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cat > conftest.c <<EOF
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cat > conftest.c <<EOF
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int _start (void) { return 42; }
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,--depaudit,x -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,--depaudit,x -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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fi
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if test $libc_linker_feature = yes; then
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libc_cv_depaudit=yes
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@ -6080,25 +6071,22 @@ have-depaudit = $libc_cv_depaudit"
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$as_echo_n "checking for linker that supports --no-dynamic-linker... " >&6; }
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libc_linker_feature=no
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if test x"$gnu_ld" = x"yes"; then
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libc_linker_check=`$LD -v --help 2>/dev/null | grep "\--no-dynamic-linker"`
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if test -n "$libc_linker_check"; then
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cat > conftest.c <<EOF
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cat > conftest.c <<EOF
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int _start (void) { return 42; }
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,--no-dynamic-linker -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,--no-dynamic-linker -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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fi
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if test $libc_linker_feature = yes; then
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libc_cv_no_dynamic_linker=yes
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@ -80,25 +80,22 @@ fi
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$as_echo_n "checking for linker that supports --no-tls-get-addr-optimize... " >&6; }
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libc_linker_feature=no
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if test x"$gnu_ld" = x"yes"; then
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libc_linker_check=`$LD -v --help 2>/dev/null | grep "\--no-tls-get-addr-optimize"`
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if test -n "$libc_linker_check"; then
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cat > conftest.c <<EOF
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cat > conftest.c <<EOF
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int _start (void) { return 42; }
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,--no-tls-get-addr-optimize -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,--no-tls-get-addr-optimize -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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fi
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if test $libc_linker_feature = yes; then
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libc_cv_tls_get_addr_optimize=yes
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