arcan: fix wayland build_options, proper cleanup

No revision bump since wayland is not the default

srcpkgs/arcan/patches/show-message.patch

@@ -1,7 +1,7 @@
-Index: a/src/CMakeLists.txt
+Index: a/arcan/src/CMakeLists.txt
 ===================================================================
---- a/src/CMakeLists.txt
-+++ b/src/CMakeLists.txt
+--- a/arcan/src/CMakeLists.txt
++++ b/arcan/src/CMakeLists.txt
 @@ -1,16 +1,8 @@
  # tried playing nice by using REQUIRE_QUIET but some built-in modules
  # (CheckLibraryExists, ...) wouldn't listen so how about a nice cup

srcpkgs/arcan/template

@@ -3,11 +3,12 @@
 pkgname=arcan
 version=0.6.2
 revision=1
-build_wrksrc=src
+create_wrksrc=yes
+build_wrksrc=arcan/src
 build_style=cmake
 make_cmd=make
 configure_args="-DDISTR_TAG='Void Linux' -DVIDEO_PLATFORM=egl-dri
- -DHYBRID_SDL=On
+ -DHYBRID_SDL=On -DDISABLE_WAYLAND=$(vopt_if wayland OFF ON)
  $(vopt_if luajit '-DDISABLE_JIT=OFF' '-DDISABLE_JIT=ON')"
 hostmakedepends="pkg-config
  $(vopt_if wayland wayland-devel)"
@@ -24,7 +25,7 @@ maintainer="Piraty <piraty1@inbox.ru>"
 license="GPL-2.0-or-later, LGPL-2.0-or-later, BSD-3-Clause"
 homepage="https://arcan-fe.com/"
 _versionOpenal=0.5.4
-distfiles="https://github.com/letoram/${pkgname}/archive/${version}.tar.gz
+distfiles="https://github.com/letoram/arcan/archive/${version}.tar.gz
  https://github.com/letoram/openal/archive/${_versionOpenal}.tar.gz>openal_arcan.${_versionOpenal}.tar.gz"
 checksum="635c447c341c7b803fd13317d3027ce438e8965803943a213a8f4409352d889c
  3a50a87c05b67c466a868cc77f8dc7f9cfc9466aeeafcd823daca0d108c504da"
@@ -49,11 +50,12 @@ if [ "$XBPS_TARGET_NO_ATOMIC8" ]; then
 	CFLAGS="-latomic"
 fi
 
-post_patch() {
-	rm -f platform/cmake/modules/FindPkgConfig.cmake
+post_extract() {
+	mv arcan-$version arcan
+	rm arcan/src/platform/cmake/modules/FindPkgConfig.cmake
 	# provide patched openAL. the _lwa part of the build relies on a patched
 	# openAL implementation that is statically linked
-	ln -s ${XBPS_BUILDDIR}/openal-${_versionOpenal} ${XBPS_BUILDDIR}/arcan-${version}/external/git/openal
+	mv openal-$_versionOpenal arcan/external/git/openal
 }
 
 post_install() {