[evolution] RSS: Require camel and libedataserer pkgconfig files

[Milan Crha <mcrha src gnome org>]

commit 6df88968ce8e786003a725fa1c8386cbc65f9cdf
Author: Milan Crha <mcrha redhat com>
Date:   Fri Jul 8 12:56:58 2022 +0200

    RSS: Require camel and libedataserer pkgconfig files
    
    While the files are checked for in the main CMakeLists.txt file,
    it'll be better to require the two pkg-config files, in case they
    are renamed or any such change.

 src/modules/rss/camel/CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/modules/rss/camel/CMakeLists.txt b/src/modules/rss/camel/CMakeLists.txt
index 1e8ceaff08..ae828a7c43 100644
--- a/src/modules/rss/camel/CMakeLists.txt
+++ b/src/modules/rss/camel/CMakeLists.txt
@@ -1,5 +1,5 @@
-pkg_check_modules(LIBEDATASERVER libedataserver-1.2)
-pkg_check_modules(CAMEL camel-1.2)
+pkg_check_modules(LIBEDATASERVER libedataserver-1.2 REQUIRED)
+pkg_check_modules(CAMEL camel-1.2 REQUIRED)
 pkg_check_variable(camel_providerdir camel-1.2 camel_providerdir)
 
 set(sources