From cb9d702f06dbd15e703881ffc1e42cc39d197001 Mon Sep 17 00:00:00 2001
From: Snaipe <franklinmathieu@gmail.com>
Date: Thu, 19 Nov 2015 02:13:09 +0100
Subject: [PATCH] [Issue #77] Fixed msgmerge being called with --lang on
 versions <=0.17 by cmake.

---
 .cmake/Modules/GettextTranslate.cmake | 28 +++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/.cmake/Modules/GettextTranslate.cmake b/.cmake/Modules/GettextTranslate.cmake
index 553b13d..02307ff 100644
--- a/.cmake/Modules/GettextTranslate.cmake
+++ b/.cmake/Modules/GettextTranslate.cmake
@@ -252,13 +252,29 @@ macro(GettextTranslate)
 
     else()
 
-      add_custom_target(${PO_TARGET}
-        COMMAND ${GettextTranslate_MSGMERGE_EXECUTABLE} --lang=${lang}
-          ${PO_FILE_NAME} ${TEMPLATE_FILE_ABS} 
-          -o ${PO_FILE_NAME}.new
-        COMMAND mv ${PO_FILE_NAME}.new ${PO_FILE_NAME}
-        DEPENDS ${TEMPLATE_FILE_ABS}
+      execute_process(
+        COMMAND ${GettextTranslate_MSGMERGE_EXECUTABLE} --version
+        OUTPUT_VARIABLE MSGMERGE_VERSION_MSG
       )
+      string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" MSGMERGE_VERSION "${MSGMERGE_VERSION_MSG}")
+
+      if ("${MSGMERGE_VERSION}" VERSION_GREATER "0.17")
+          add_custom_target(${PO_TARGET}
+            COMMAND ${GettextTranslate_MSGMERGE_EXECUTABLE} --lang=${lang}
+              ${PO_FILE_NAME} ${TEMPLATE_FILE_ABS} 
+              -o ${PO_FILE_NAME}.new
+            COMMAND mv ${PO_FILE_NAME}.new ${PO_FILE_NAME}
+            DEPENDS ${TEMPLATE_FILE_ABS}
+          )
+      else ()
+          add_custom_target(${PO_TARGET}
+            COMMAND ${GettextTranslate_MSGMERGE_EXECUTABLE}
+              ${PO_FILE_NAME} ${TEMPLATE_FILE_ABS} 
+              -o ${PO_FILE_NAME}.new
+            COMMAND mv ${PO_FILE_NAME}.new ${PO_FILE_NAME}
+            DEPENDS ${TEMPLATE_FILE_ABS}
+          )
+      endif ()
 
     endif()