Fix Leptonica version check for cmake

* The check was missing.
* The check did not work with the given Leptonica version.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

CMakeLists.txt

@@ -44,12 +44,12 @@ set(VERSION_MAJOR 3)
 set(VERSION_MINOR 05)
 set(VERSION_PLAIN ${VERSION_MAJOR}.${VERSION_MINOR})
 
-set(MINIMUM_LEPTONICA_VERSION 1.74.0)
+set(MINIMUM_LEPTONICA_VERSION 1.74)
 
 if(NOT EXISTS ${PROJECT_SOURCE_DIR}/.cppan)
     if (NOT Leptonica_DIR AND NOT MSVC)
         find_package(PkgConfig REQUIRED)
-        pkg_check_modules(Leptonica REQUIRED lept)
+        pkg_check_modules(Leptonica REQUIRED lept>=${MINIMUM_LEPTONICA_VERSION})
     else()
         find_package(Leptonica ${MINIMUM_LEPTONICA_VERSION} REQUIRED CONFIG)
     endif()