From f035478d357d066ed18e2667c1edc6ff9dfe384b Mon Sep 17 00:00:00 2001
From: Guillaume LE VAILLANT <glv@posteo.net>
Date: Thu, 4 Jan 2018 11:26:29 +0100
Subject: [PATCH] Fix translations header generation when cross-compilating

Define generate_translations_header as an external project to be able
to use the compilation toolchain for the host instead of the toolchain
for the target.
---
 CMakeLists.txt              | 6 +++++-
 translations/CMakeLists.txt | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4d451f8ad..5d63f1172 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -366,7 +366,11 @@ endif()
 add_definitions(-DAUTO_INITIALIZE_EASYLOGGINGPP)
 
 # Generate header for embedded translations
-add_subdirectory(translations)
+include(ExternalProject)
+ExternalProject_Add(generate_translations_header
+  SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/translations"
+  BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}/translations"
+  INSTALL_COMMAND cmake -E echo "")
 include_directories("${CMAKE_CURRENT_BINARY_DIR}/translations")
 
 add_subdirectory(external)
diff --git a/translations/CMakeLists.txt b/translations/CMakeLists.txt
index 36b72d68a..f74e63c76 100644
--- a/translations/CMakeLists.txt
+++ b/translations/CMakeLists.txt
@@ -28,6 +28,8 @@
 
 cmake_minimum_required(VERSION 2.8.7)
 
+project(translations)
+
 add_executable(generate_translations_header generate_translations_header.c)
 
 find_program(LRELEASE lrelease)