Rename draw.* to gl_draw.*

Makefile

@@ -15,8 +15,8 @@ CFLAGS += -O0 -g3
 endif
 
 TARGET = drow-engine
-HEADERS = err.h parser.h types.h print.h filereader.h draw.h
-OBJECTS = main.o parser.o print.o filereader.o draw.c
+HEADERS = err.h parser.h types.h print.h filereader.h gl_draw.h
+OBJECTS = main.o parser.o print.o filereader.o gl_draw.c
 INCS = -I.
 
 CFLAGS += $(shell $(PKG_CONFIG) --cflags gl glu glib-2.0)

main.c

@@ -16,7 +16,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "draw.h"
+#include "gl_draw.h"
 #include "filereader.h"
 #include "print.h"
 #include "types.h"