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glfw: prepare build system to support runtime Wayland/X11 detection

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-06-11 17:18:42 -07:00 • committed by Stephen Gutekanst
parent 05a2118ef5
commit e328c652d0
1 changed files with 23 additions and 17 deletions
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40
build.zig
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@ -35,7 +35,12 @@ pub const Options = struct {
gles: bool = false,
/// Only respected on Linux.
linux_window_manager: LinuxWindowManager = .X11,
x11: bool = true,
/// Only respected on Linux.
// TODO(build-system): update wayland-protocol source generation in linux system SDKs so we can
// turn this on by default.
wayland: bool = false,
/// System SDK options.
system_sdk: system_sdk.Options = .{},
@ -86,17 +91,20 @@ fn buildLibrary(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *
lib.setTarget(step.target);
var sources = std.ArrayList([]const u8).init(b.allocator);
const flag = switch (options.linux_window_manager) {
.X11 => "-D_GLFW_X11",
.Wayland => "-D_GLFW_WAYLAND",
};
var flags = std.ArrayList([]const u8).init(b.allocator);
sources.append(thisDir() ++ "/src/sources_all.c") catch unreachable;
sources.append(thisDir() ++ "/src/sources_linux.c") catch unreachable;
switch (options.linux_window_manager) {
.X11 => sources.append(thisDir() ++ "/src/sources_linux_x11.c") catch unreachable,
.Wayland => sources.append(thisDir() ++ "/src/sources_linux_wayland.c") catch unreachable,
if (options.x11) {
sources.append(thisDir() ++ "/src/sources_linux_x11.c") catch unreachable;
flags.append("-D_GLFW_X11") catch unreachable;
}
lib.addCSourceFiles(sources.items, &.{ flag, "-I" ++ thisDir() ++ "/upstream/glfw/src" });
if (options.wayland) {
sources.append(thisDir() ++ "/src/sources_linux_wayland.c") catch unreachable;
flags.append("-D_GLFW_WAYLAND") catch unreachable;
}
flags.append("-I" ++ thisDir() ++ "/upstream/glfw/src") catch unreachable;
lib.addCSourceFiles(sources.items, flags.items);
},
}
linkGLFWDependencies(b, lib, options);
@ -162,14 +170,12 @@ fn linkGLFWDependencies(b: *Builder, step: *std.build.LibExeObjStep, options: Op
},
else => {
// Assume Linux-like
switch (options.linux_window_manager) {
.X11 => {
step.linkSystemLibraryName("X11");
step.linkSystemLibraryName("xcb");
step.linkSystemLibraryName("Xau");
step.linkSystemLibraryName("Xdmcp");
},
.Wayland => step.linkSystemLibraryName("wayland-client"),
if (options.wayland) step.linkSystemLibraryName("wayland-client");
if (options.x11) {
step.linkSystemLibraryName("X11");
step.linkSystemLibraryName("xcb");
step.linkSystemLibraryName("Xau");
step.linkSystemLibraryName("Xdmcp");
}
// Note: no need to link against vulkan, GLFW finds it dynamically at runtime.
// https://www.glfw.org/docs/3.3/vulkan_guide.html#vulkan_loader