scripts/trylink: remove $CPPFLAGS
We don't use it in final link, should not use it in check_FOO then.
This uncovered a logic bug in glibc check...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/scripts/trylink b/scripts/trylink
index 2609997..9132b3f 100755
--- a/scripts/trylink
+++ b/scripts/trylink
@@ -51,10 +51,10 @@
echo "int main(int argc,char**argv){return argv?argc:0;}" >"$tempname".c
# Can use "-o /dev/null", but older gcc tend to *unlink it* on failure! :(
# Was using "-xc /dev/null", but we need a valid C program.
- # "eval" is needed because CFLAGS can contain
+ # "eval" may be needed is CFLAGS can contain
# '... -D"BB_VER=KBUILD_STR(1.N.M)" ...'
# and we need shell to process quotes!
- eval $CC $CPPFLAGS $CFLAGS $1 "$tempname".c -o "$tempname" >/dev/null 2>&1
+ $CC $CFLAGS $1 "$tempname".c -o "$tempname" >/dev/null 2>&1
r=$?
rm -f "$tempname" "$tempname".c "$tempname".o
return $r
@@ -70,7 +70,7 @@
syntax error here
#endif
" >"$tempname".c
- $CC $CPPFLAGS $CFLAGS "$tempname".c -c -o "$tempname".o >/dev/null 2>&1
+ ! $CC $CFLAGS "$tempname".c -c -o "$tempname".o >/dev/null 2>&1
r=$?
rm -f "$tempname" "$tempname".c "$tempname".o
return $r