Merge pull request qgis#59221 from nicogodet/findsip-cmake

Fix FindSIP.cmake and make it more verbose

Author: m-kuhn

cmake/FindSIP.cmake

@@ -39,25 +39,33 @@ ELSE(SIP_VERSION)
     STRING(REGEX REPLACE ".*\nsip_version_num:([^\n]+).*$" "\\1" SIP_VERSION_NUM ${sip_config})
     STRING(REGEX REPLACE ".*\nsip_version_str:([^\n]+).*$" "\\1" SIP_VERSION_STR ${sip_config})
     STRING(REGEX REPLACE ".*\ndefault_sip_dir:([^\n]+).*$" "\\1" SIP_DEFAULT_SIP_DIR ${sip_config})
+    IF(NOT SIP_FIND_QUIETLY)
+      MESSAGE(STATUS "Found SIP version: ${SIP_VERSION_STR}")
+    ENDIF(NOT SIP_FIND_QUIETLY)
+
     IF(${SIP_VERSION_STR} VERSION_LESS 5)
       STRING(REGEX REPLACE ".*\nsip_bin:([^\n]+).*$" "\\1" SIP_BINARY_PATH ${sip_config})
       STRING(REGEX REPLACE ".*\nsip_inc_dir:([^\n]+).*$" "\\1" SIP_INCLUDE_DIR ${sip_config})
       STRING(REGEX REPLACE ".*\nsip_module_dir:([^\n]+).*$" "\\1" SIP_MODULE_DIR ${sip_config})
+      SET(SIP_FOUND TRUE)
     ELSE(${SIP_VERSION_STR} VERSION_LESS 5)
       FIND_PROGRAM(SIP_BUILD_EXECUTABLE sip-build)
+      IF(SIP_BUILD_EXECUTABLE)
+        IF(NOT SIP_FIND_QUIETLY)
+          MESSAGE(STATUS "Found sip-build executable: ${SIP_BUILD_EXECUTABLE}")
+        ENDIF(NOT SIP_FIND_QUIETLY)
+        SET(SIP_FOUND TRUE)
+      ELSE(SIP_BUILD_EXECUTABLE)
+        MESSAGE (FATAL_ERROR "Could not find sip-build executable")
+      ENDIF(SIP_BUILD_EXECUTABLE)
     ENDIF(${SIP_VERSION_STR} VERSION_LESS 5)
-    SET(SIP_FOUND TRUE)
   ENDIF(sip_config)
 
-  IF(SIP_FOUND)
-    IF(NOT SIP_FIND_QUIETLY)
-      MESSAGE(STATUS "Found SIP version: ${SIP_VERSION_STR}")
-    ENDIF(NOT SIP_FIND_QUIETLY)
-  ELSE(SIP_FOUND)
+  IF(NOT SIP_FOUND)
     IF(SIP_FIND_REQUIRED)
       MESSAGE(FATAL_ERROR "Could not find SIP")
     ENDIF(SIP_FIND_REQUIRED)
-  ENDIF(SIP_FOUND)
+  ENDIF(NOT SIP_FOUND)
 
 ENDIF(SIP_VERSION)