From 3485efd8081c665982ac6104aea86d12fb90503d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Julian=20Gro=C3=9F?= <firedefender1@googlemail.com>
Date: Tue, 15 Dec 2020 05:00:58 +0100
Subject: [PATCH] Fix failing builds

---
 CMakeLists.txt                  | 12 +++++++++++-
 cmake/ports/glad/portfile.cmake |  3 ++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 424fbdc940..33efb2f240 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,6 +41,17 @@ endif()
 file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/_env/EXTERNAL_BUILD_ASSETS.txt" "${EXTERNAL_BUILD_ASSETS}")
 MESSAGE(STATUS "EXTERNAL_BUILD_ASSETS: ${EXTERNAL_BUILD_ASSETS}")
 
+set(GLES_OPTION OFF)
+
+if( DEFINED ENV{USE_GLES} )
+    set(USE_GLES "$ENV{USE_GLES}")
+    set(GLES_OPTION "$ENV{USE_GLES}")
+endif()
+
+# Will affect VCPKG dependencies
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/_env/USE_GLES.txt" "${GLES_OPTION}")
+MESSAGE(STATUS "GLES_OPTION: ${GLES_OPTION}")
+
 include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/macros/TargetPython.cmake")
 target_python()
 
@@ -129,7 +140,6 @@ set(BUILD_TESTS_OPTION OFF)
 set(BUILD_MANUAL_TESTS_OPTION ${BUILD_TESTS_OPTION})
 set(BUILD_TOOLS_OPTION ON)
 set(BUILD_INSTALLER_OPTION ON)
-set(GLES_OPTION OFF)
 set(DISABLE_QML_OPTION OFF)
 set(DOWNLOAD_SERVERLESS_CONTENT_OPTION OFF)
 
diff --git a/cmake/ports/glad/portfile.cmake b/cmake/ports/glad/portfile.cmake
index c13306ed80..0c2106e581 100644
--- a/cmake/ports/glad/portfile.cmake
+++ b/cmake/ports/glad/portfile.cmake
@@ -2,8 +2,9 @@ include(vcpkg_common_functions)
 vcpkg_check_linkage(ONLY_STATIC_LIBRARY)
 
 file(READ "${VCPKG_ROOT_DIR}/_env/EXTERNAL_BUILD_ASSETS.txt" EXTERNAL_BUILD_ASSETS)
+file(READ "${VCPKG_ROOT_DIR}/_env/USE_GLES.txt" USE_GLES)
 
-if (ANDROID OR ${GLES_OPTION} ON)
+if (ANDROID OR USE_GLES)
     vcpkg_download_distfile(
         SOURCE_ARCHIVE
         URLS ${EXTERNAL_BUILD_ASSETS}/dependencies/glad/glad32es.zip