[Freeglut-developer] problem with undefined references

[Max L. <ma...@is...>]

Dear all

First off, a big thank you to all developers and maintainers of 
FreeGlut. It's cool that somebody took the initiative.

Unfortunately, freeglut (as well as openglut) are giving me a hard time.

I am using the most recent release of Cygwin and g++ version 3.4.1. I 
managed to compile freeglut 2.2.0 using this setup. The examples run 
without any problems whatsoever. That's cool.

Now I am desperately trying to re-compile one of my applications that 
uses the original version of glut for freeglut. As a test I am trying to 
re-compile "hello.c", which comes as an example. It doesn't seem to 
work, and I get various kinds of linker problems. I am sure that the 
problem is my ignorance (despite having some experience with linux, it's 
the first time I am using cygwin).


Here my Makefile.win (I am using Dev-C++):


# Project: testsdl
# Makefile created by Dev-C++ 4.9.9.0

CPP  = g++.exe
CC   = gcc.exe
WINDRES = windres.exe
RES  =
OBJ  = hello.o $(RES)
LINKOBJ  = hello.o $(RES)
LIBS =  -L"C:/cygwin/usr/local/lib" -L"C:/cygwin/usr/X11R6/lib" -lstdc++ 
  -lmingw32 -lopengl32 -lglu  -lX11 -lglut -mwindows  -mno-cygwin
INCS =  -I"C:/cygwin/usr/include"  -I"C:/cygwin/usr/local/include"
CXXINCS =  -I"C:/cygwin/usr/include"  -I"C:/cygwin/usr/local/include"
BIN  = TestFreeGlut.exe
CXXFLAGS = $(CXXINCS) -Uunix  -mno-cygwin -D_WIN32
CFLAGS = $(INCS)

.PHONY: all all-before all-after clean clean-custom

all: all-before TestFreeGlut.exe all-after

clean: clean-custom
	rm -f $(OBJ) $(BIN)

$(BIN): $(OBJ)
	$(CPP) $(LINKOBJ) -o "TestFreeGlut.exe" $(LIBS)

hello.o: hello.c
	$(CPP) -c hello.c -o hello.o $(CXXFLAGS)


And here the error messages for this particular Makefile:


$ make -f Makefile.win
g++.exe -c hello.c -o hello.o -I"C:/cygwin/usr/include" 
-I"C:/cygwin/usr/local/include"  -Uunix  -mno-cygwin -D_WIN32
g++.exe hello.o  -o "TestFreeGlut.exe" -L"C:/cygwin/usr/local/lib" 
-L"C:/cygwin/usr/X11R6/lib" -lstdc++  -lmingw32 -lopengl32 -lglu  -lX11 
-lglut -mwindows  -mno-cygwin
hello.o(.text+0x1ae):hello.c: undefined reference to `__imp__glutInit@8'
hello.o(.text+0x1bf):hello.c: undefined reference to 
`__imp__glutInitDisplayMode@4'
hello.o(.text+0x1d8):hello.c: undefined reference to 
`__imp__glutInitWindowSize@8'
hello.o(.text+0x1f1):hello.c: undefined reference to 
`__imp__glutInitWindowPosition@8'
hello.o(.text+0x202):hello.c: undefined reference to 
`__imp__glutCreateWindow@4'
hello.o(.text+0x218):hello.c: undefined reference to 
`__imp__glutDisplayFunc@4'
hello.o(.text+0x229):hello.c: undefined reference to 
`__imp__glutKeyboardFunc@4'
hello.o(.text+0x233):hello.c: undefined reference to `__imp__glutMainLoop@0'
collect2: ld returned 1 exit status
make: *** [TestFreeGlut.exe] Error 1


I would really appreciate any form of feedback. Really.

Thank you very much!

Best regards.
Max