X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=configure;h=7b29ae40f68599080c1f57c74ac47dd4a3793798;hb=bd1eaceaa3975bd2a2a34e211cff896affaecadf;hp=1b6b46495b03fe12d67db2102b9bfd178c094f2d;hpb=428462a4c355f32e09fa5e578043c15ea91e29f7;p=musl

diff --git a/configure b/configure
index 1b6b4649..7b29ae40 100755
--- a/configure
+++ b/configure
@@ -80,7 +80,7 @@ fi
 tryflag () {
 printf "checking whether compiler accepts %s... " "$2"
 echo "typedef int x;" > "$tmpc"
-if $CC $2 -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+if $CC $CFLAGS_TRY $2 -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
 printf "yes\n"
 eval "$1=\"\${$1} \$2\""
 eval "$1=\${$1# }"
@@ -94,7 +94,7 @@ fi
 tryldflag () {
 printf "checking whether linker accepts %s... " "$2"
 echo "typedef int x;" > "$tmpc"
-if $CC -nostdlib -shared "$2" -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+if $CC $LDFLAGS_TRY -nostdlib -shared "$2" -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
 printf "yes\n"
 eval "$1=\"\${$1} \$2\""
 eval "$1=\${$1# }"
@@ -113,7 +113,9 @@ CFLAGS_C99FSE=
 CFLAGS_AUTO=
 CFLAGS_MEMOPS=
 CFLAGS_NOSSP=
+CFLAGS_TRY=
 LDFLAGS_AUTO=
+LDFLAGS_TRY=
 OPTIMIZE_GLOBS=
 prefix=/usr/local/musl
 exec_prefix='$(prefix)'
@@ -204,6 +206,14 @@ printf "no; compiler output follows:\n%s\n" "$output"
 exit 1
 fi
 
+#
+# Figure out options to force errors on unknown flags.
+#
+tryflag   CFLAGS_TRY  -Werror=unknown-warning-option
+tryflag   CFLAGS_TRY  -Werror=unused-command-line-argument
+tryldflag LDFLAGS_TRY -Werror=unknown-warning-option
+tryldflag LDFLAGS_TRY -Werror=unused-command-line-argument
+
 #
 # Need to know if the compiler is gcc to decide whether to build the
 # musl-gcc wrapper, and for critical bug detection in some gcc versions.
@@ -421,7 +431,7 @@ tryflag CFLAGS_AUTO -Wno-unknown-pragmas
 tryflag CFLAGS_AUTO -Wno-pointer-to-int-cast
 fi
 
-if test "x$visibility" == xauto ; then
+if test "x$visibility" = xauto ; then
 # This test checks toolchain support for several things:
 # - the -include option
 # - the attributes/pragmas used in vis.h
@@ -441,7 +451,7 @@ fi
 printf "%s\n" "$visibility"
 fi
 
-if test "x$visibility" == xyes ; then
+if test "x$visibility" = xyes ; then
 CFLAGS_AUTO="$CFLAGS_AUTO -include vis.h"
 CFLAGS_AUTO="${CFLAGS_AUTO# }"
 fi