(sample): Add -Wall -Wmissing-prototypes options for gcc.

diff --git a/Makefile.in b/Makefile.in
index 1f29bcd..5a495d5 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -59,7 +59,7 @@ install.libs: libchise.la
 
 
 sample:        sample.c libchise.la
-       gcc -o sample sample.c -lchise
+       gcc -Wall -Wmissing-prototypes -o sample sample.c -lchise
 
 
 clean: