Add libprotobuf-c requirement

Adds a patch to express the CRIU dependency on protobuf-c-devel in
pkgconfig that is auto-detected when building a package.

Resolves: rhbz#2100639

Signed-off-by: Radostin Stoyanov <radostin@redhat.com>

criu.pc.patch

@@ -0,0 +1,27 @@
+From 341ef149ee259d9432ea4c01507eefab2ef8b83c Mon Sep 17 00:00:00 2001
+From: Radostin Stoyanov <radostin@redhat.com>
+Date: Thu, 14 Oct 2021 12:58:56 +0100
+Subject: [PATCH] criu.pc: Add libprotobuf-c as a dependency
+
+CRIU has a dependency on protobuf-c-devel. We express this dependency
+in pkgconfig to be auto-detected when building a package.
+
+Signed-off-by: Radostin Stoyanov <radostin@redhat.com>
+---
+ lib/c/criu.pc.in | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/lib/c/criu.pc.in b/lib/c/criu.pc.in
+index 33986d10d..bcced5033 100644
+--- a/lib/c/criu.pc.in
++++ b/lib/c/criu.pc.in
+@@ -4,5 +4,6 @@ includedir=@includedir@
+ Name: CRIU
+ Description: RPC library for userspace checkpoint and restore
+ Version: @version@
++Requires.private: libprotobuf-c
+ Libs: -L${libdir} -lcriu
+ Cflags: -I${includedir}
+--
+2.31.1
+

criu.spec

@@ -7,7 +7,7 @@
 
 Name: criu
 Version: 3.17
-Release: 2%{?dist}
+Release: 3%{?dist}
 Provides: crtools = %{version}-%{release}
 Obsoletes: crtools <= 1.0-2
 Summary: Tool for Checkpoint/Restore in User-space
@@ -28,6 +28,7 @@ BuildRequires: make
 Recommends: tar
 
 Patch0: 0001-Fix-building-with-annobin.patch
+Patch1: criu.pc.patch
 
 # user-space and kernel changes are only available for x86_64, arm,
 # ppc64le, aarch64 and s390x
@@ -74,6 +75,7 @@ their content in human-readable form.
 %prep
 %setup -q
 %patch0 -p1
+%patch1 -p1
 
 %build
 # %{?_smp_mflags} does not work
@@ -124,6 +126,9 @@ rm $RPM_BUILD_ROOT%{_mandir}/man1/criu-ns.1*
 %doc %{_mandir}/man1/crit.1*
 
 %changelog
+* Mon Jul 04 2022 Radostin Stoyanov <radostin@redhat.com> - 3.17-3
+- Add libprotobuf-c dependency requirement
+
 * Mon May 09 2022 Adrian Reber <areber@redhat.com> - 3.17-2
 - Update to 3.17
 - Drop upstreamed patch