cmake/pkgconfig: use CMAKE_INSTALL_FULL_* variables

See: https://cmake.org/cmake/help/latest/module/GNUInstallDirs.html

Signed-off-by: Doron Behar <[email protected]>

Author: doronbehar

CMakeLists.txt

@@ -220,12 +220,6 @@ include(GNUInstallDirs)
 ########################################################################
 # Setup the package config file
 ########################################################################
-#set variables found in the pc.in file
-set(prefix ${CMAKE_INSTALL_PREFIX})
-set(exec_prefix "\${prefix}")
-set(libdir "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
-set(includedir "\${prefix}/include")
-
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/tmpl/volk.pc.in
                ${CMAKE_CURRENT_BINARY_DIR}/volk.pc @ONLY)
 

tmpl/volk.pc.in

@@ -1,7 +1,7 @@
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@CMAKE_INSTALL_FULL_LIBDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
 LV_CXXFLAGS=@LV_CXXFLAGS@