[PATCH] configure: Don't check for libVulkan on macOS.

[Dean M Greer]

macOS uses libMoltenVK, finding libVulkan on macOS causes libMoltenVK to be ignored and Wine is unable to interact with the Vulkan loader on macOS.

Signed-off-by: Dean M Greer 
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index dafa8489b71..1d770009ae3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -130,6 +130,7 @@ AC_CHECK_TOOL(LD,ld)
 case $host in
   *-darwin*)
     with_fontconfig=${with_fontconfig:-no}
+    ac_cv_lib_soname_vulkan=
     ;;
   *-mingw32*|*-cygwin*)
     enable_win16=${enable_win16:-no}