Re: [Openexr-devel] Makefiles, OpenEXR, and OS X

[Drew Hess]

Hey Brian,

Looks like you're missing the actual libs to link (-lIlmImf etc.).  Use
pkg-config, it'll do all the dirty work for you, as long as you installed
OpenEXR someplace where pkg-config will look.  I think that if you change
your CFLAGS and LDFLAGS like so:

CFLAGS = -g `pkg-config --cflags OpenEXR`
LDFLAGS = -g `pkg-config --libs OpenEXR'

that should take care of your OpenEXR linking problems.


-dwh-


 On Sat, 24 Jan 2004, Brian Clark wrote:

> I am trying to compile a program on OS X using OpenEXR from the command 
> line, via makefile, as opposed to Xcode.  This same code compiles with 
> Xcode, but gives me errors during the linking stage (I think) when I 
> try to use a makefile.
> 
> I am not very familiar with makefiles.  I've always just appropriated a 
> makefile from elsewhere when I needed one.  But I must have an include 
> messed up somewhere.  Does anyone have a suggestion of what's going 
> wrong with the following makefile?
> 
> CC = g++
> LD = g++
> INCDIR = /usr/X11R6/include/ -I/usr/local/include/OpenEXR/ 
> -I/usr/local/lib
> CFLAGS = -g
> LDFLAGS = -g -lm -L/usr/local/include/OpenEXR/ -L/usr/local/lib
> 
> OBJS = Vector.o Utility.o Camera.o Caustic.o Color.o Distant.o 
> ImageClass.o Light.o Parser.o Plane.o Point.o PolyObj.o Ray.o Shape.o 
> Sphere.o Texture.o Triangle.o VolumeObj.o World.o main.o
> 
> PROG = HDRRaytracer
> 
> $(PROG): $(OBJS)
>       $(LD) $(LDFLAGS) $(OBJS) -o $(PROG)
> 
> 
> %.o: %.cpp
>       $(CC) $(CFLAGS) -I$(INCDIR) -c $< -o $*.o
> 
> clean:
>       rm *.o
> 
> When I run it, I get the following message:
> 
> ld: warning prebinding disabled because of undefined symbols
> ld: Undefined symbols:
> Imf::RgbaOutputFile::writePixels(int)
> Imf::RgbaOutputFile::setFrameBuffer(Imf::Rgba const*, unsigned long, 
> unsigned long)
> Imf::RgbaOutputFile::RgbaOutputFile[in-charge](char const*, int, int, 
> Imf::RgbaChannels, float, Imath::Vec2<float>, float, Imf::LineOrder, 
> Imf::Compression)
> Imf::RgbaOutputFile::~RgbaOutputFile [in-charge]()
> half::_eLut
> half::convert(int)
> make: *** [HDRRaytracer] Error 1
> 
> ImfRgbaFile.h, which includes writePixels(int) is in the 
> /usr/local/include/OpenEXR/ path, which I have included in the LDFLAGS 
> and the INCDIR (not really sure if I'm being redundant or not), but it 
> doesn't work.
> 
> Comments?
> Suggestions?
> Ideers?
> Strategery?
> 
> Thanks,
> bc