From 9b58e9e481fcd3ba786dd01410f0d3cc37d65434 Mon Sep 17 00:00:00 2001
From: Martin Pulec <martin.pulec@cesnet.cz>
Date: Tue, 17 Jan 2023 10:56:58 +0100
Subject: [PATCH] configure: link with libMoltenVK on macOS

+ install MoltenVK with CI
---
 .github/scripts/macOS/prepare.sh |  3 ++-
 configure.ac                     | 10 +++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/.github/scripts/macOS/prepare.sh b/.github/scripts/macOS/prepare.sh
index dc2efc935..5967e0ee3 100755
--- a/.github/scripts/macOS/prepare.sh
+++ b/.github/scripts/macOS/prepare.sh
@@ -18,7 +18,8 @@ echo "DYLIBBUNDLER_FLAGS=$DYLIBBUNDLER_FLAGS" >> "$GITHUB_ENV"
 
 brew install autoconf automake cppunit libtool pkg-config
 brew install libsoxr speexdsp
-brew install ffmpeg portaudio sdl2 sdl2_mixer sdl2_ttf vulkan-loader
+brew install ffmpeg portaudio sdl2 sdl2_mixer sdl2_ttf
+brew install molten-vk vulkan-headers
 brew install imagemagick jack libnatpmp opencv wolfssl
 brew install ossp-uuid # for cineform
 brew install qt@5
diff --git a/configure.ac b/configure.ac
index b85ec175e..539ca711d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1248,7 +1248,15 @@ AC_ARG_ENABLE(vulkan,
     [vulkan_req=$build_default]
     )
 
-PKG_CHECK_MODULES([VULKAN], [vulkan >= 1.1.101], [found_vulkan=yes], [found_vulkan=no])
+SAVED_LIBS=$LIBS
+VULKAN_LIBS="-L/opt/homebrew/lib -lMoltenVK"
+LIBS="$LIBS $VULKAN_LIBS"
+AC_CHECK_FUNCS(vkCreateImage, [found_vulkan=yes], [found_vulkan=no])
+LIBS=$SAVED_LIBS
+if test "$found_vulkan" = no; then
+        VULKAN_LIBS=
+        PKG_CHECK_MODULES([VULKAN], [vulkan >= 1.1.101], [found_vulkan=yes], [found_vulkan=no])
+fi
 AC_CHECK_HEADERS([vulkan/vulkan.h], [], [found_vulkan=no])
 
 if test $vulkan_req != no -a $sdl = yes -a $sdl_version = 2 -a $found_vulkan = yes