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support pkgconfig

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This commit is contained in:
Lee Cannon 2022-09-26 21:38:10 +01:00
parent 0d848a71ec
commit a3af1c76a3
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GPG Key ID: 983D5E5CC5E1401F
1 changed files with 45 additions and 0 deletions
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45
src/special/build_runner.zig
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@ -98,11 +98,13 @@ fn processStep(
) anyerror!void {
if (step.cast(InstallArtifactStep)) |install_exe| {
try processIncludeDirs(allocator, include_dirs, install_exe.artifact.include_dirs.items);
try processPkgConfig(allocator, include_dirs, install_exe.artifact);
for (install_exe.artifact.packages.items) |pkg| {
try processPackage(allocator, packages, pkg);
}
} else if (step.cast(LibExeObjStep)) |exe| {
try processIncludeDirs(allocator, include_dirs, exe.include_dirs.items);
try processPkgConfig(allocator, include_dirs, exe);
for (exe.packages.items) |pkg| {
try processPackage(allocator, packages, pkg);
}
@ -161,6 +163,49 @@ fn processIncludeDirs(
}
}
fn processPkgConfig(
allocator: std.mem.Allocator,
include_dirs: *std.ArrayListUnmanaged(BuildConfig.IncludeDir),
exe: *std.build.LibExeObjStep,
) !void {
for (exe.link_objects.items) |link_object| {
switch (link_object) {
.system_lib => |system_lib| {
switch (system_lib.use_pkg_config) {
.no => {},
.yes, .force => {
if (exe.runPkgConfig(system_lib.name)) |args| {
for (args) |arg| {
if (std.mem.startsWith(u8, arg, "-I")) {
try include_dirs.append(allocator, .{ .path = arg[2..], .system = true });
}
}
} else |err| switch (err) {
error.PkgConfigInvalidOutput,
error.PkgConfigCrashed,
error.PkgConfigFailed,
error.PkgConfigNotInstalled,
error.PackageNotFound,
=> switch (system_lib.use_pkg_config) {
.yes => {
// pkg-config failed, so zig will not add any include paths
},
.force => {
log.warn("pkg-config failed for library {s}", .{system_lib.name});
},
.no => unreachable,
},
else => |e| return e,
}
},
}
},
else => {},
}
}
}
fn runBuild(builder: *Builder) anyerror!void {
switch (@typeInfo(@typeInfo(@TypeOf(root.build)).Fn.return_type.?)) {
.Void => root.build(builder),