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glfw: add Linux SDK / cross compilation support

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2021-07-29 19:11:08 -07:00 • committed by Stephen Gutekanst
parent 7d5cd4bbcb
commit b1581b684c
1 changed files with 33 additions and 5 deletions
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38
glfw/build.zig
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@ -103,6 +103,17 @@ pub fn link(b: *Builder, step: *std.build.LibExeObjStep, options: Options) void
},
else => {
// Assume Linux-like
includeSdkLinuxX8664(b, step);
// TODO(slimsag): for now, Linux must be built with glibc, not musl:
//
// ```
// ld.lld: error: cannot create a copy relocation for symbol stderr
// thread 2004762 panic: attempt to unwrap error: LLDReportedFailure
// ```
step.target.abi = .gnu;
lib.setTarget(step.target);
var general_sources = std.ArrayList([]const u8).init(&arena.allocator);
const flag = switch (options.linux_window_manager) {
.X11 => "-D_GLFW_X11",
@ -202,14 +213,18 @@ fn linkGLFW(b: *Builder, step: *std.build.LibExeObjStep, options: Options) void
},
else => {
// Assume Linux-like
// TODO(slimsag): create sdk-linux
includeSdkLinuxX8664(b, step);
switch (options.linux_window_manager) {
.X11 => step.linkSystemLibrary("X11"),
.X11 => {
step.linkSystemLibrary("X11");
step.linkSystemLibrary("xcb");
step.linkSystemLibrary("Xau");
step.linkSystemLibrary("Xdmcp");
},
.Wayland => step.linkSystemLibrary("wayland-client"),
}
if (options.vulkan) {
step.linkSystemLibrary("vulkan");
}
// 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
if (options.opengl) {
step.linkSystemLibrary("GL");
}
@ -244,6 +259,19 @@ fn includeSdkMacOS(b: *Builder, step: *std.build.LibExeObjStep) void {
b.sysroot = sdk_sysroot; // TODO(slimsag): leaks, b.sysroot doesn't get free'd by builder?
}
fn includeSdkLinuxX8664(b: *Builder, step: *std.build.LibExeObjStep) void {
const sdk_root_dir = getSdkRoot(b.allocator, "sdk-linux-x86_64") catch unreachable;
defer b.allocator.free(sdk_root_dir);
var sdk_root_includes = std.fs.path.join(b.allocator, &.{ sdk_root_dir, "root/usr/include" }) catch unreachable;
defer b.allocator.free(sdk_root_includes);
step.addSystemIncludeDir(sdk_root_includes);
var sdk_root_libs = std.fs.path.join(b.allocator, &.{ sdk_root_dir, "root/usr/lib/x86_64-linux-gnu" }) catch unreachable;
defer b.allocator.free(sdk_root_libs);
step.addLibPath(sdk_root_libs);
}
/// Caller owns returned memory.
fn getSdkRoot(allocator: *std.mem.Allocator, comptime name: []const u8) ![]const u8 {
// Find the directory where the SDK should be located. We'll consider two locations: