Martin Gansser wrote:
> f31 [1]:
> Checking for pkg-config opengl ... no
> Checking for opengl ... yes
> adding -lGL to LIBS_X11
> adding -lGLU to LIBS_X11
>
> f32[2]:
> Checking for pkg-config opengl ... adding -lOpenGL to LIBS_X11
> yes
So the issue is the use of pkg-config opengl. That new pkg-config module
does not do what the code (in the handwritten configure) actually expects.
Up to F31, there was no "opengl" pkg-config file at all, so the code falled
back to the hardcoded list of libraries, but on F32, there is no an "opengl"
pkg-config file, and it returns -lOpenGL, not -lGL -lGLU.
The problem is that the handwritten configure script invokes this function:
test_library(){
subsys="$1"
libname="$2"
hdr="$3"
lib="$4"
func="$5"
inc="$6"
feature=$(toupper $libname)
# do not test if disabled from command-line
if disabled $feature; then
log "Not checking for $libname"
disable $feature
return 1
fi
disable $feature
# try pkg-config first
if enabled pkgconfig; then
test_library_pc "$subsys" "$libname" && enable "$feature"
fi
# compile/link test as fallback
if disabled $feature; then
test_library_c "$subsys" "$libname" "$hdr" "$lib" "$func" "$inc" &&
enable $feature
fi
}
(contained in the script) as follows (line 404, I compacted the spaces):
test_library X11 opengl "GL/glx.h" "-lGL -lGLU" "glXQueryVersion(0,0,0)"
Changing that to:
test_library X11 OpenGL "GL/glx.h" "-lGL -lGLU" "glXQueryVersion(0,0,0)"
(i.e., s/opengl/OpenGL/ in that line) should fix it, because then it will
look for an OpenGL pkg-config module instead, hopefully not find one
(because pkg-config is case-sensitive), and then use the "-lGL -lGLU" flags
instead.
The second argument of test_library is only used 1. as the pkg-config module
name, 2. for the console output, and 3. fully upper-cased as the feature
name, so it should be safe to change the case to something that does not
happen to be the name of a wrong pkg-config module (while still mapping to
the feature name OPENGL).
Kevin Kofler
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