diff -ru fbgrab.orig/Makefile fbgrab/Makefile
--- fbgrab.orig/Makefile	2013-05-24 00:14:45.000000000 +0400
+++ fbgrab/Makefile	2013-08-22 14:39:18.000000000 +0400
@@ -4,7 +4,7 @@
 ###
 
 fbgrab: fbgrab.c
-	gcc -g -Wall fbgrab.c -lpng -lz -o fbgrab
+	$(CC) -Wall ${CPPFLAGS} ${CFLAGS} ${LDFLAGS} fbgrab.c -lpng -lz -o fbgrab
 
 install:
 	install fbgrab /usr/bin/fbgrab