--- CMakeModules/FindVIGRA.cmake.orig	2021-08-21 14:43:52 UTC
+++ CMakeModules/FindVIGRA.cmake
@@ -53,8 +53,15 @@ IF (VIGRA_FOUND)
   IF(NOT VIGRA_CONFIG_VERSION_HXX)
     MESSAGE(FATAL_ERROR "Could not find vigra/configVersion.hxx or vigra/config_version.hxx. Your vigra installation seems to be corrupt.")
   ENDIF()
-  FILE(STRINGS "${VIGRA_CONFIG_VERSION_HXX}" VIGRA_VERSION_HXX REGEX ".*#define +VIGRA_VERSION +\"")
-  STRING(REGEX REPLACE ".*#define +VIGRA_VERSION +\"([.0-9]+).*" "\\1" VIGRA_VERSION "${VIGRA_VERSION_HXX}")
+  FILE(STRINGS "${VIGRA_CONFIG_VERSION_HXX}" VIGRA_VERSION_HXX REGEX ".*#define +VIGRA_VERSION_(MAJOR|MINOR|PATCH)")
+  STRING(REGEX REPLACE ".*#define +VIGRA_VERSION_MAJOR +([0-9]+).*" "\\1" VIGRA_VERSION_MAJOR "${VIGRA_VERSION_HXX}") 
+  STRING(REGEX REPLACE ".*#define +VIGRA_VERSION_MINOR +([0-9]+).*" "\\1" VIGRA_VERSION_MINOR "${VIGRA_VERSION_HXX}") 
+  STRING(REGEX REPLACE ".*#define +VIGRA_VERSION_PATCH +([0-9]+).*" "\\1" VIGRA_VERSION_PATCH "${VIGRA_VERSION_HXX}")
+  IF(VIGRA_VERSION_MAJOR AND VIGRA_VERSION_MINOR AND VIGRA_VERSION_PATCH)
+    SET(VIGRA_VERSION "${VIGRA_VERSION_MAJOR}.${VIGRA_VERSION_MINOR}.${VIGRA_VERSION_PATCH}")
+  ELSE()
+    MESSAGE(FATAL_ERROR "Cooud not parse vigra version number from vigra/config_version.hxx")
+  ENDIF()
   IF(${VIGRA_VERSION} VERSION_EQUAL VIGRA_FIND_VERSION OR ${VIGRA_VERSION} VERSION_GREATER VIGRA_FIND_VERSION)
     SET(VIGRA_VERSION_CHECK TRUE)
     MESSAGE(STATUS "VIGRA version: ${VIGRA_VERSION}")