OpenGL cross platform makefile

error_console.txt

$ make
gcc -o hello hello.c  -lGL -lGLU -lglut
ld: library not found for -lGL
collect2: ld returned 1 exit status
make: *** [hello] Error 1

Makefile

# Linux (default)
EXE = hello
LDFLAGS = -lGL -lGLU -lglut

# Windows (cygwin)
ifeq ($(OS), "Windows_NT")
        EXE = hello.exe
                LDFLAGS = -lopengl32 -lglu32 -lglut32
endif

# OS X
ifeq ($(OSTYPE), "darwin9.0")
        LDFLAGS = -framework Carbon -framework OpenGL -framework GLUT
endif

$(EXE) : hello.c
        gcc -o $@ $< $(CFLAGS) $(LDFLAGS)

Makefile_correct

# Linux (default)
EXE = hello
LDFLAGS = -lGL -lGLU -lglut

# Windows (cygwin)
ifeq ($(OS), "Windows_NT")
        EXE = hello.exe
                LDFLAGS = -lopengl32 -lglu32 -lglut32
endif

# OS X
ifeq "$(shell uname)" "Darwin"
        LDFLAGS = -framework Carbon -framework OpenGL -framework GLUT
endif

$(EXE) : hello.c
        gcc -o $@ $< $(CFLAGS) $(LDFLAGS)