moving volk to a deps fetch

build.zig

@@ -68,6 +68,8 @@ pub fn build(b: *std.Build) void {
         const test_step = b.step(b.fmt("test-{s}", .{impl.name}), b.fmt("Run lib{s} tests", .{impl.name}));
         test_step.dependOn(&run_tests.step);
 
+        const volk = b.lazyDependency("volk", .{}) orelse continue;
+
         const c_test_exe = b.addExecutable(.{
             .name = b.fmt("c_test_vulkan_{s}", .{impl.name}),
             .root_module = b.createModule(.{
@@ -77,6 +79,8 @@ pub fn build(b: *std.Build) void {
             }),
         });
 
+        c_test_exe.root_module.addSystemIncludePath(volk.path(""));
+
         c_test_exe.root_module.addCSourceFile(.{
             .file = b.path("test/c/main.c"),
             .flags = &.{b.fmt("-DLIBVK=\"{s}\"", .{lib.name})},

build.zig.zon

@@ -22,6 +22,11 @@
             .url = "git+https://github.com/FObersteiner/zdt/?ref=v0.8.1#8b551a0a3e5ae64a32b5bad0e6a93119787b43af",
             .hash = "zdt-0.8.1-xr0_vAxUDwCJRDh9pcAS_mdZBIsvcGTtN-K8JJSWY4I6",
         },
+        .volk = .{
+            .url = "git+https://github.com/zeux/volk/#8f53cc717f50f142db4736f401d0b61956cd78f9",
+            .hash = "N-V-__8AAPn9BwCBHnaxOC_rffCpFI7QRfi5qBCLvov9EYK3",
+            .lazy = true,
+        },
     },
 
     .paths = .{

test/c/main.c

@@ -13,7 +13,7 @@
 #endif
 
 #define VOLK_IMPLEMENTATION
-#include "volk.h"
+#include <volk.h>
 
 #define CheckVk(x) \
 	do { \