security/libgpg-error: Fix gpgrt-config

Fix the default search path for pkgconfig files in gpgrt-config.
Previously, it was necessary to supply the path manually with the
--libdir argument, but this can now be omitted.

Approved by:	portmgr (blanket)

security/libgpg-error/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	libgpg-error
 DISTVERSION=	1.48
+PORTREVISION=	1
 CATEGORIES=	security devel
 MASTER_SITES=	GNUPG
 

security/libgpg-error/files/patch-src_gpgrt-config.in

@@ -0,0 +1,13 @@
+Fix default path to pkgconfig files.
+
+--- src/gpgrt-config.in.orig	2024-04-24 04:08:07 UTC
++++ src/gpgrt-config.in
+@@ -460,7 +460,7 @@ determine_gpgrt_libdir () {
+     # Get the prefix of gpgrt-config assuming it's something like:
+     #   <PREFIX>/bin/gpgrt-config
+     gpgrt_prefix=${GPGRT_CONFIG%/*/*}
+-    possible_libdir1=${gpgrt_prefix}/lib
++    possible_libdir1=${gpgrt_prefix}/libdata
+     # Determine by using system libdir-format with CC, it's like:
+     #   Normal style: /usr/lib
+     #   GNU cross style: /usr/<triplet>/lib