Fix the handling of unsupported ioctls (eth0 appeared in iwconfig for instance)

[openwrt.git] / include / prereq-build.mk

diff --git a/include/prereq-build.mk b/include/prereq-build.mk
index d3aec64..c31020c 100644 (file)
--- a/include/prereq-build.mk
+++ b/include/prereq-build.mk
@@ -52,7 +52,8 @@ $(eval $(call Require,working-gcc, \
 
 define Require/working-g++
        echo 'int main(int argc, char **argv) { return 0; }' | \
-               g++ -x c++ -o $(TMP_DIR)/a.out -lstdc++ -
+               g++ -x c++ -o $(TMP_DIR)/a.out -lstdc++ - && \
+               $(TMP_DIR)/a.out
 endef
 
 $(eval $(call Require,working-g++, \
@@ -121,3 +122,4 @@ $(eval $(call Require,gnutar, \
 $(eval $(call RequireCommand,autoconf, \
        Please install GNU autoconf. \
 ))
+