Thread: Lib issues: undefined references (libjpeg)

I'm currently porting the texture loader code for my engine to Linux. For the JPEG loader, I include jpeglib.h, and libjpeg.so with -ljpeg. When I compile the program, I get errors such as "Textures.cpp:(.text+0x216): undefined reference to `jpeg_destroy_decompress(jpeg_decompress_struct*)' " with g++, even though I have included the header and am linking with the library.

I'm new to programming on Linux, so this will probably have a simple solution that I don't know about.

Thanks.

Nope, didn't work .

My makefile:

Code:

APP = Clockwork
CC = g++
FLAGS = -Wall -m elf_i386
FLAGS64 = -Wall -m elf_x86_64
OBJS = App.o Camera.o Engine.o Textures.o World.o
IMG_LIBS = -ljpeg
GLUI_LIBS = -Llib -lglui
GL_LIBS = -lglut -lGL -lGLU
LIBS = ${GL_LIBS} ${IMG_LIBS} -lXmu -lXext -lX11 -lXi -lm #-lmalloc 
INC_DIR = -I/usr/X11R6/include -I/usr/include
LIB_DIR = -L/usr/X11R6/lib -L/usr/lib
LIB64_DIR = -L/usr/X11R6/lib64 -L/usr/lib64
GLUT = ${GLUT_PATH}

x86-64: $(OBJS)
	$(CC) $(FLAGS64) $(GLUT) $(INC_DIR) $(LIB64_DIR) $(OBJS) $(GLUI_LIBS) $(LIBS) -o $(APP)
	
x86: $(OBJS)
	$(CC) $(FLAGS) $(GLUT) $(INC_DIR) $(LIB_DIR) $(OBJS) $(GLUI_LIBS) $(LIBS) -o $(APP)
	
clean:
	/bin/rm *.o