Only install .pc files for which we build a .so.

Many .so files are not built on arm64, but currently we install
the .pc files anyway. Fix by including the .pc files in the ARM64
conditional.

-

@@ -0,0 +1,25 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index fe67fc8..8393a8b 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -11,9 +11,11 @@ SET(PROJECT_APIVER "${PROJECT_VER}")
+ if(ARM64)
+    set(BUILD_MMAL FALSE)
+    set(BUILD_MMAL_APPS FALSE)
++   set(PKGCONFFILES bcm_host.pc)
+ else()
+    set(BUILD_MMAL TRUE)
+    set(BUILD_MMAL_APPS TRUE)
++   set(PKGCONFFILES bcm_host.pc brcmegl.pc brcmglesv2.pc brcmvg.pc vcsm.pc mmal.pc)
+ endif()
+ set(vmcs_root ${PROJECT_SOURCE_DIR})
+ get_filename_component(VIDEOCORE_ROOT . ABSOLUTE)
+@@ -122,7 +124,7 @@ include_directories("${PROJECT_BINARY_DIR}")
+ include(FindPkgConfig QUIET)
+ if(PKG_CONFIG_FOUND)
+ 	# Produce a pkg-config file
+-	foreach(PCFILE bcm_host.pc brcmegl.pc brcmglesv2.pc brcmvg.pc vcsm.pc mmal.pc)
++	foreach(PCFILE IN LISTS PKGCONFFILES)
+ 		configure_file("pkgconfig/${PCFILE}.in" "${PCFILE}" @ONLY)
+ 		install(FILES       "${CMAKE_CURRENT_BINARY_DIR}/${PCFILE}"
+ 			DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig")

CMakeLists.txt

@@ -11,9 +11,11 @@ SET(PROJECT_APIVER "${PROJECT_VER}")
 if(ARM64)
    set(BUILD_MMAL FALSE)
    set(BUILD_MMAL_APPS FALSE)
+   set(PKGCONFFILES bcm_host.pc)
 else()
    set(BUILD_MMAL TRUE)
    set(BUILD_MMAL_APPS TRUE)
+   set(PKGCONFFILES bcm_host.pc brcmegl.pc brcmglesv2.pc brcmvg.pc vcsm.pc mmal.pc)
 endif()
 set(vmcs_root ${PROJECT_SOURCE_DIR})
 get_filename_component(VIDEOCORE_ROOT . ABSOLUTE)
@@ -122,7 +124,7 @@ include_directories("${PROJECT_BINARY_DIR}")
 include(FindPkgConfig QUIET)
 if(PKG_CONFIG_FOUND)
 	# Produce a pkg-config file
-	foreach(PCFILE bcm_host.pc brcmegl.pc brcmglesv2.pc brcmvg.pc vcsm.pc mmal.pc)
+	foreach(PCFILE IN LISTS PKGCONFFILES)
 		configure_file("pkgconfig/${PCFILE}.in" "${PCFILE}" @ONLY)
 		install(FILES       "${CMAKE_CURRENT_BINARY_DIR}/${PCFILE}"
 			DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig")