Move make install logic for libGL back into src/mesa/Makefile.

This makes make install work again for non-glx libGL implementations.
The make install logic is split into three sub-targets: install-libgl,
install-osmesa, install-drivers.  The install target in src/glx/x11
is then implemented using the src/mesa make install-libgl rule.

Thanks to Dan Nicholson for pointing out the breakage.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/mesa/gl.pc.in b/src/mesa/gl.pc.in
new file mode 100644
index 00000000000..4b144ffa4b2
--- /dev/null
+++ b/src/mesa/gl.pc.in
@@ -0,0 +1,11 @@
+prefix=@INSTALL_DIR@
+exec_prefix=${prefix}
+libdir=${exec_prefix}/@LIB_DIR@
+includedir=${prefix}/include
+
+Name: gl
+Description: Mesa OpenGL library
+Requires:
+Version: @VERSION@
+Libs: -L${libdir} -lGL
+Cflags: -I${includedir}