speed up debugging by adding fewer symbols during compilation

Makefile

@@ -1,7 +1,7 @@
 
 SHELL = /bin/sh
 CXX = g++
-CXXFLAGS = -std=c++11 -g -ggdb3 -Wall -Isrc/ -I/usr/include/SDL2
+CXXFLAGS = -std=c++11 -g -ggdb -Wall -Isrc/ -I/usr/include/SDL2
 LDFLAGS = -lSDL2 -lGLEW -lGL
 OBJDIR = build
 SRCDIR = src
@@ -25,6 +25,7 @@ $(OBJECTS): $(OBJDIR)/%.o : $(SRCDIR)/%.cpp
 
 $(NDBG_OBJS): $(OBJDIR)/%.o : $(SRCDIR)/%.cc
 	$(CXX) -std=c++11 -Wall -Isrc/ -c $< -o $@
+	strip -d $@
 
 $(BIN): $(OBJECTS) $(NDBG_OBJS)
 	mkdir -p $(BINDIR)