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Merged
mitchellh merged 1 commit into from
Apr 10, 2026
Merged

build: add libghostty-vt-static pkg-config module #12210

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23 changes: 18 additions & 5 deletions nix/libghostty-vt.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,8 @@ stdenv.mkDerivation (finalAttrs: {
postFixup = ''
substituteInPlace "$dev/share/pkgconfig/libghostty-vt.pc" \
--replace-fail "$out" "$dev"
substituteInPlace "$dev/share/pkgconfig/libghostty-vt-static.pc" \
--replace-fail "$out" "$dev"
'';

passthru.tests = {
Expand All @@ -105,6 +107,17 @@ stdenv.mkDerivation (finalAttrs: {
pkg-config = testers.hasPkgConfigModules {
package = finalAttrs.finalPackage.dev;
};
pkg-config-libs =
runCommand "pkg-config-libs" {
nativeBuildInputs = [pkg-config];
} ''
export PKG_CONFIG_PATH="${finalAttrs.finalPackage.dev}/share/pkgconfig"

pkg-config --libs --static libghostty-vt | grep -q -- '-lghostty-vt'
pkg-config --libs --static libghostty-vt-static | grep -q -- '${finalAttrs.finalPackage.dev}/lib/libghostty-vt.a'

touch "$out"
'';
build-with-shared = stdenv.mkDerivation {
name = "build-with-shared";
src = ./test-src;
Expand Down Expand Up @@ -154,10 +167,7 @@ stdenv.mkDerivation (finalAttrs: {
runHook preBuildHooks

cc -o test test_libghostty_vt.c \
''$(pkg-config --cflags libghostty-vt) \
${finalAttrs.finalPackage.dev}/lib/libghostty-vt.a \
''$(pkg-config --libs-only-l --static libghostty-vt | sed 's/-lghostty-vt//') \
-Wl,-rpath,"${finalAttrs.finalPackage}/lib"
''$(pkg-config --cflags --libs --static libghostty-vt-static)

runHook postBuildHooks
'';
Expand Down Expand Up @@ -227,6 +237,9 @@ stdenv.mkDerivation (finalAttrs: {
homepage = "https://ghostty.org";
license = lib.licenses.mit;
platforms = zig_0_15.meta.platforms;
pkgConfigModules = ["libghostty-vt"];
pkgConfigModules = [
"libghostty-vt"
"libghostty-vt-static"
];
};
})
101 changes: 82 additions & 19 deletions src/build/GhosttyLibVt.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ kind: Kind,
output: std.Build.LazyPath,
dsym: ?std.Build.LazyPath,
pkg_config: ?std.Build.LazyPath,
pkg_config_static: ?std.Build.LazyPath,

/// The kind of library being built. This is similar to LinkMode but
/// also includes wasm which is an executable, not a library.
Expand Down Expand Up @@ -85,6 +86,7 @@ pub fn initWasm(
.output = output,
.dsym = null,
.pkg_config = null,
.pkg_config_static = null,
};
}

Expand Down Expand Up @@ -162,6 +164,7 @@ pub fn initStaticAppleUniversal(
.output = universal.output,
.dsym = null,
.pkg_config = null,
.pkg_config_static = null,
});

// Additional Apple platforms, each gated on SDK availability.
Expand Down Expand Up @@ -264,23 +267,15 @@ fn initLib(
};

// pkg-config
const pc: std.Build.LazyPath = pc: {
const wf = b.addWriteFiles();
break :pc wf.add("libghostty-vt.pc", b.fmt(
\\prefix={s}
\\includedir=${{prefix}}/include
\\libdir=${{prefix}}/lib
\\
\\Name: libghostty-vt
\\URL: https://github.com/ghostty-org/ghostty
\\Description: Ghostty VT library
\\Version: {f}
\\Cflags: -I${{includedir}}
\\Libs: -L${{libdir}} -lghostty-vt
\\Libs.private: {s}
\\Requires.private: {s}
, .{ b.install_prefix, zig.version, libsPrivate(zig), requiresPrivate(b) }));
};
//
// pkg-config's --static only expands Libs.private / Requires.private;
// it doesn't change -lghostty-vt into an archive-only reference when
// both shared and static libraries are installed. Install a dedicated
// static module so consumers can request the archive explicitly.
const pcs: ?PkgConfigFiles = if (kind == .shared)
pkgConfigFiles(b, zig, target.result.os.tag)
else
null;

// For static libraries with vendored SIMD dependencies, combine
// all archives into a single fat archive so consumers only need
Expand All @@ -302,7 +297,8 @@ fn initLib(
.kind = kind,
.output = combined.output,
.dsym = dsymutil,
.pkg_config = pc,
.pkg_config = if (pcs) |v| v.shared else null,
.pkg_config_static = if (pcs) |v| v.static else null,
};
}

Expand All @@ -312,7 +308,8 @@ fn initLib(
.kind = kind,
.output = lib.getEmittedBin(),
.dsym = dsymutil,
.pkg_config = pc,
.pkg_config = if (pcs) |v| v.shared else null,
.pkg_config_static = if (pcs) |v| v.static else null,
};
}

Expand Down Expand Up @@ -370,6 +367,65 @@ fn libsPrivate(
return if (zig.vt_c.link_libcpp orelse false) "-lc++" else "";
}

const PkgConfigFiles = struct {
shared: std.Build.LazyPath,
static: std.Build.LazyPath,
};

fn pkgConfigFiles(
b: *std.Build,
zig: *const GhosttyZig,
os_tag: std.Target.Os.Tag,
) PkgConfigFiles {
const wf = b.addWriteFiles();
const libs_private = libsPrivate(zig);
const requires_private = requiresPrivate(b);

return .{
.shared = wf.add("libghostty-vt.pc", b.fmt(
\\prefix={s}
\\includedir=${{prefix}}/include
\\libdir=${{prefix}}/lib
\\
\\Name: libghostty-vt
\\URL: https://github.com/ghostty-org/ghostty
\\Description: Ghostty VT library
\\Version: {f}
\\Cflags: -I${{includedir}}
\\Libs: -L${{libdir}} -lghostty-vt
\\Libs.private: {s}
\\Requires.private: {s}
, .{ b.install_prefix, zig.version, libs_private, requires_private })),
.static = wf.add("libghostty-vt-static.pc", b.fmt(
\\prefix={s}
\\includedir=${{prefix}}/include
\\libdir=${{prefix}}/lib
\\
\\Name: libghostty-vt-static
\\URL: https://github.com/ghostty-org/ghostty
\\Description: Ghostty VT library (static)
\\Version: {f}
\\Cflags: -I${{includedir}}
\\Libs: ${{libdir}}/{s}
\\Libs.private: {s}
\\Requires.private: {s}
, .{
b.install_prefix,
zig.version,
staticLibraryName(os_tag),
libs_private,
requires_private,
})),
};
}

fn staticLibraryName(os_tag: std.Target.Os.Tag) []const u8 {
return if (os_tag == .windows)
"ghostty-vt-static.lib"
else
"libghostty-vt.a";
}

/// Returns the Requires.private value for the pkg-config file.
/// When SIMD dependencies are provided by the system (via
/// -Dsystem-integration), we reference their pkg-config names so
Expand Down Expand Up @@ -450,4 +506,11 @@ pub fn install(
"share/pkgconfig/libghostty-vt.pc",
).step);
}
if (self.pkg_config_static) |pkg_config_static| {
step.dependOn(&b.addInstallFileWithDir(
pkg_config_static,
.prefix,
"share/pkgconfig/libghostty-vt-static.pc",
).step);
}
}
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