Enable many more warning options to gcc command-line

diff --git a/Makefile b/Makefile
index 17fc6281a8c5c74a881345c0a9107d9e3122dcac..55cd6c8687c742de0f95976fb5cd0e6c47947805 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-CFLAGS  = -g -Wall
+CFLAGS  = -g -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -fno-strict-aliasing
 
 CFLAGS  += `pkg-config cairo --cflags`
 CFLAGS  += `freetype-config --cflags`