From ef55446a9ce6a666eb843126eca8a715ff3bb0d6 Mon Sep 17 00:00:00 2001
From: Ryan Moeller <ryan@iXsystems.com>
Date: Fri, 4 Sep 2020 14:11:18 -0400
Subject: [PATCH] Spruce up pkg-config files for libzfs/libzfs_core

Several of the listed library dependencies are not relevant on FreeBSD.
Have ./configure save libraries that are found via pkg-config as
${LIB}_PC and use the configured automake variables instead of hard
coded names so we only get what was actually needed.

While here, update the URL to point at the OpenZFS Github repo.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #10869
---
 config/find_system_library.m4     | 5 +++++
 lib/libzfs/libzfs.pc.in           | 4 ++--
 lib/libzfs_core/libzfs_core.pc.in | 4 ++--
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/config/find_system_library.m4 b/config/find_system_library.m4
index 9a95d6a150..310b44112a 100644
--- a/config/find_system_library.m4
+++ b/config/find_system_library.m4
@@ -11,10 +11,12 @@ AC_DEFUN([ZFS_AC_FIND_SYSTEM_LIBRARY], [
 
     _header_found=
     _library_found=
+    _pc_found=
 
     AS_IF([test -n "$2"], [PKG_CHECK_MODULES([$1], [$2], [
 	_header_found=1
 	_library_found=1
+	_pc_found=1
     ], [:])])
 
     # set _header_found/_library_found if the user passed in CFLAGS/LIBS
@@ -82,6 +84,9 @@ AC_DEFUN([ZFS_AC_FIND_SYSTEM_LIBRARY], [
     AS_IF([test "x$_header_found" = "x1" && test "x$_library_found" = "x1"], [
 	AC_SUBST([$1]_CFLAGS)
 	AC_SUBST([$1]_LIBS)
+	AS_IF([test "x$_pc_found" = "x1"], [
+	    AC_SUBST([$1]_PC, [$2])
+	])
 	AC_DEFINE([HAVE_][$1], [1], [Define if you have [$5]])
 	$7
     ],[dnl ELSE
diff --git a/lib/libzfs/libzfs.pc.in b/lib/libzfs/libzfs.pc.in
index 6caf49d221..afe5635ae6 100644
--- a/lib/libzfs/libzfs.pc.in
+++ b/lib/libzfs/libzfs.pc.in
@@ -6,9 +6,9 @@ includedir=@includedir@
 Name: libzfs
 Description: LibZFS library
 Version: @VERSION@
-URL: https://zfsonlinux.org
+URL: https://github.com/openzfs/zfs
 Requires: libzfs_core
-Requires.private: libcrypto zlib
+Requires.private: @LIBCRYPTO_PC@ @ZLIB_PC@
 Cflags: -I${includedir}/libzfs -I${includedir}/libspl
 Libs: -L${libdir} -lzfs -lnvpair
 Libs.private: -luutil -lm -pthread
diff --git a/lib/libzfs_core/libzfs_core.pc.in b/lib/libzfs_core/libzfs_core.pc.in
index e14d42d11a..bc9582ea33 100644
--- a/lib/libzfs_core/libzfs_core.pc.in
+++ b/lib/libzfs_core/libzfs_core.pc.in
@@ -6,8 +6,8 @@ includedir=@includedir@
 Name: libzfs_core
 Description: LibZFS core library
 Version: @VERSION@
-URL: https://zfsonlinux.org
-Requires.private: blkid uuid libtirpc zlib
+URL: https://github.com/openzfs/zfs
+Requires.private: @LIBBLKID_PC@ @LIBUUID_PC@ @LIBTIRPC_PC@ @ZLIB_PC@
 Cflags: -I${includedir}/libzfs -I${includedir}/libspl
 Libs: -L${libdir} -lzfs_core -lnvpair
 Libs.private: @LIBCLOCK_GETTIME@ @LIBUDEV_LIBS@ -lm -pthread