Add glm

compile

@@ -1,9 +1,18 @@
 #!/bin/bash
 
-CC=g++
-CFLAGS="-g -Wall $(pkg-config --cflags sdl2) -Isrc/glad/include"
+CC=clang
+CFLAGS="-g -c -Wall -Isrc/glad/include"
+CXX=clang++
+CXXFLAGS="-g -Wall -std=c++20 $(pkg-config --cflags sdl2) -Isrc/glad/include -Isrc/glm"
 LIBS="$(pkg-config --libs sdl2) -ldl"
-SRC="src/*.cc src/glad/src/glad.c"
+GLAD_SRC="src/glad/src/glad.c"
+GLAD_OBJ="glad.o"
+SRC="src/*.cc $GLAD_OBJ src/glm/glm/glm.cppm"
 OUT=main
 
-(set -x ; $CC $CFLAGS $LIBS $SRC -o $OUT)
+(set -x ; $CC $CFLAGS $GLAD_SRC -o $GLAD_OBJ)
+(set -x ; $CXX $CXXFLAGS $LIBS $SRC -o $OUT)
+
+if [[ -f $GLAD_OBJ ]]; then
+	rm $GLAD_OBJ
+fi