widelands: fix cross

srcpkgs/widelands/patches/cmake-cross.patch

@@ -0,0 +1,16 @@
+upstream: no
+reason: Our SDL2-devel package has a for cross broken sdl2-config.cmake,
+this patches switched back to a find module cmake script
+
+---
+--- CMakeLists.txt	2020-07-19 19:54:00.744509368 +0200
++++ -	2020-07-19 19:57:03.761863497 +0200
+@@ -110,7 +110,7 @@
+ find_package(PNG REQUIRED)
+ 
+ find_package(Threads REQUIRED)
+-find_package(SDL2 CONFIG)
++find_package(SDL2 REQUIRED MODULE)
+ if(SDL2_FOUND)
+   message(STATUS "Found SDL2 configuration file")
+   if(TARGET SDL2::SDL2)

srcpkgs/widelands/template

@@ -17,7 +17,6 @@ license="GPL-2.0-or-later"
 homepage="http://www.widelands.org/"
 distfiles="https://github.com/widelands/widelands/archive/build${version}.tar.gz>${pkgname}-${version}.tar.gz"
 checksum=601e0e4c6f91b3fb0ece2cd1b83ecfb02344a1b9194fbb70ef3f70e06994e357
-nocross="Cmake does not find cross SDL2 header files because it looks into /usr/include/SDL2"
 
 CXXFLAGS="-DU_USING_ICU_NAMESPACE=1"
 
@@ -25,6 +24,10 @@ if [ "$XBPS_TARGET_LIBC" = "musl" ]; then
 	makedepends+=" libexecinfo-devel"
 fi
 
+if [ "$CROSS_BUILD" ]; then
+	configure_args+=" -DOPTION_BUILD_TESTS=OFF"
+fi
+
 post_install() {
 	# For some reason the binary is installed as /usr/widelands - move it
 	vmkdir usr/bin