package/postgresql: add configure and includedir-server output to pg_config

Some external packages call pg_config to determine the installed
PostgreSQL server includedir and configure options. Add this output to
Buildroots own pg_config, so these packages correctly compile.

Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 787ad0b35d0d5d38b5e3da473fb861f903ba65bd)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/postgresql/pg_config

@@ -11,12 +11,18 @@ case "$1" in
   --includedir)
 	echo "$prefix/include"
 	;;
+  --includedir-server)
+	echo "$prefix/include/postgresql/server"
+	;;
   --libdir)
 	echo "$prefix/lib"
 	;;
   --version)
 	echo "PostgreSQL @POSTGRESQL_VERSION@"
 	;;
+  --configure)
+	echo "@POSTGRESQL_CONF_OPTIONS@"
+	;;
   *)
-	echo "Usage: $0 {--includedir|--libdir|--version}"
+	echo "Usage: $0 {--includedir|--includedir-server|--libdir|--version|--configure}"
 esac

package/postgresql/postgresql.mk

@@ -115,6 +115,7 @@ POSTGRESQL_POST_INSTALL_TARGET_HOOKS += POSTGRESQL_INSTALL_TARGET_FIXUP
 define POSTGRESQL_INSTALL_CUSTOM_PG_CONFIG
 	$(INSTALL) -m 0755 -D package/postgresql/pg_config \
 		$(STAGING_DIR)/usr/bin/pg_config
+	$(SED) "s|@POSTGRESQL_CONF_OPTIONS@|$(POSTGRESQL_CONF_OPTS)|g" $(STAGING_DIR)/usr/bin/pg_config
 	$(SED) "s|@POSTGRESQL_VERSION@|$(POSTGRESQL_VERSION)|g" $(STAGING_DIR)/usr/bin/pg_config
 endef