package/Makefile.in: Use appropriate paths for host pkg-config.

PKG_CONFIG_PATH adds a path to the pkg-config search path, but this is not
enough when we are building host tools - the host pkg-config default path
is still used, and this will pick up .pc files in the staging_dir tree.

PKG_CONFIG_LIBDIR overrides the pkg-config default path and ensures only
host .pc files are found. This fixes a pango build failure when building
for the host with cairo PNG support enabled.

Signed-off-by: Will Newton <will.newton@gmail.com>

package/Makefile.in

@@ -237,7 +237,7 @@ TARGET_CONFIGURE_OPTS=PATH=$(TARGET_PATH) \
 		DEFAULT_LINKER="$(TARGET_LD)" \
 		PKG_CONFIG_SYSROOT_DIR="$(STAGING_DIR)" \
 		PKG_CONFIG="$(PKG_CONFIG_HOST_BINARY)" \
-		PKG_CONFIG_PATH="$(STAGING_DIR)/usr/lib/pkgconfig$(PKG_CONFIG_PATH)" \
+		PKG_CONFIG_PATH="$(STAGING_DIR)/usr/lib/pkgconfig:$(PKG_CONFIG_PATH)" \
 		STAGING_DIR="$(STAGING_DIR)"
 
 TARGET_CONFIGURE_ENV=\
@@ -282,9 +282,12 @@ HOST_CONFIGURE_OPTS=PATH=$(HOST_PATH) \
 		ORIGINAL_NM_FOR_TARGET="$(TARGET_NM)" \
 		ORIGINAL_OBJDUMP_FOR_TARGET="$(TARGET_OBJDUMP)" \
 		PKG_CONFIG="$(PKG_CONFIG_HOST_BINARY)" \
-		PKG_CONFIG_PATH="$(HOST_DIR)/usr/lib/pkgconfig$(PKG_CONFIG_PATH)"
+		PKG_CONFIG_LIBDIR="$(HOST_DIR)/usr/lib/pkgconfig"
+
+HOST_MAKE_ENV=PATH=$(HOST_PATH) \
+		PKG_CONFIG="$(PKG_CONFIG_HOST_BINARY)" \
+		PKG_CONFIG_LIBDIR="$(HOST_DIR)/usr/lib/pkgconfig"
 
-HOST_MAKE_ENV=PATH=$(HOST_PATH)
 
 #######################################################################
 # settings we need to pass to configure

package/pango/pango.mk

@@ -91,7 +91,7 @@ $(STAMP_DIR)/host_pango_configured: $(STAMP_DIR)/host_pango_unpacked $(STAMP_DIR
 	touch $@
 
 $(STAMP_DIR)/host_pango_compiled: $(STAMP_DIR)/host_pango_configured
-	$(HOST_MAKE_ENV) PKG_CONFIG_PATH="$(HOST_DIR)/usr/lib/pkgconfig$(PKG_CONFIG_PATH)" $(MAKE) -C $(PANGO_HOST_DIR)
+	$(HOST_MAKE_ENV) $(MAKE) -C $(PANGO_HOST_DIR)
 	touch $@
 
 $(STAMP_DIR)/host_pango_installed: $(STAMP_DIR)/host_pango_compiled