I have a small application that uses OpenGL/gtkglext/gtk/pango libraries (it's a plotting program), that compiled fine under Fedora Core 5. When I try compiling under Fedora Core 6, it compiles fine, but gives several cairo related errors when it tries to link. The linking command is: gcc -o test.e -g -O3 -Wall -I/home/doug/x86_64/include -DSYS_LITTLE_ENDIAN main_test.o -L/home/doug/x86_64/lib -ldasscene-1.1 -ldasdata-1.2 -ldasutil-2.2 `pkg-config --libs gtkglext-1.0 cairo pangoft2 pango pangox pangoxft` -lGL -lGLU -lm and it gives several undefined reference errors such as: /usr/lib/gcc/x86_64-redhat-linux/4.1.1/../../../../lib64/libgtk-x11-2.0.so: undefined reference to `cairo_surface_get_type' All the undefined references refer to cairo functions. I added in `pkg-config --libs cairo-ft cairo-pdf cairo-ps cairo-xlib cairo-xlib-xrender cairo` to link to the Cairo libraries, but this doesn't seem to help the situation. Any suggestions for why this is happening. It worked fine under Fedora Core 5. Thanks. Doug
