[graphics/skanlite/release/26.08] /: Be a tiny bit more lenient with KSaneWidgets versions

Git commit 798338bc32f2113f14a50f34ec8fabbbd02749b4 by Heiko Becker.
Committed on 14/08/2026 at 05:42.
Pushed by heikobecker into branch 'release/26.08'.

Be a tiny bit more lenient with KSaneWidgets versions

The code comment also contains the motivation, but I add here that
it's an issue with CI I ran into when updating Gear versions after [1].
There was no longer a build of libksane with the new version and thus
skanlite failed to build.

[1] https://invent.kde.org/sysadmin/release-tools/-/merge_requests/73

(cherry picked from commit 59b5b89ddff5b4dde0866b061e34fb8b9f4984a9)

M  +8    -1    CMakeLists.txt

https://invent.kde.org/graphics/skanlite/-/commit/798338bc32f2113f14a50f34ec8fabbbd02749b4

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 31ddd51..6b19ca1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -58,7 +58,14 @@ set_package_properties(KF6DocTools PROPERTIES DESCRIPTION
     TYPE OPTIONAL
 )
 
-find_package(KSaneWidgets6 "${RELEASE_SERVICE_VERSION_MAJOR}.${RELEASE_SERVICE_VERSION_MINOR}" REQUIRED)
+# The intention here is to depend on a release from at least the same release
+# branch and to accomodate the jump from a RC version to .0 (eg. 26.07.90 to
+# 26.08.0), where we shouldn't really add breaking changes anyway.
+math(EXPR KSANEWIDGETS_RELEASE_BRANCH_VERSION "${RELEASE_SERVICE_VERSION_MINOR} - (${RELEASE_SERVICE_VERSION_MINOR} -3) % 4")
+if(KSANEWIDGETS_RELEASE_BRANCH_VERSION LESS "10")
+    string(PREPEND KSANEWIDGETS_RELEASE_BRANCH_VERSION "0") # pad with 0
+endif()
+find_package(KSaneWidgets6 "${RELEASE_SERVICE_VERSION_MAJOR}.${KSANEWIDGETS_RELEASE_BRANCH_VERSION}" REQUIRED)
 
 ecm_set_disabled_deprecation_versions(QT 6.7.2
     KF 6.7.0