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build: lower iOS deployment target version (#13539)

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Reopening #13535.
This commit is contained in:
Mitchell Hashimoto
2026-08-02 07:03:52 -07:00
committed by GitHub
parent 915496c221 aa74971282
commit bab076c1a2
2 changed files with 23 additions and 10 deletions
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29
src/build/Config.zig
View File

@@ -73,6 +73,11 @@ pub fn init(b: *std.Build, appVersion: []const u8, libVersion: []const u8) !Conf
// Setup our standard Zig target and optimize options, i.e.
// `-Doptimize` and `-Dtarget`.
const optimize = b.standardOptimizeOption(.{});
const emit_lib_vt = b.option(
bool,
"emit-lib-vt",
"Set defaults for a libghostty-vt-only build (disables xcframework, macOS app, and docs).",
) orelse false;
const target = target: {
var result = b.standardTargetOptions(.{});
@@ -100,7 +105,10 @@ pub fn init(b: *std.Build, appVersion: []const u8, libVersion: []const u8) !Conf
// If we have no minimum OS version, we set the default based on
// our tag. Not all tags have a minimum so this may be null.
if (result.query.os_version_min == null) {
result.query.os_version_min = osVersionMin(result.result.os.tag);
result.query.os_version_min = if (emit_lib_vt)
osVersionMinLibVt(result.result.os.tag)
else
osVersionMin(result.result.os.tag);
}
break :target result;
@@ -364,11 +372,7 @@ pub fn init(b: *std.Build, appVersion: []const u8, libVersion: []const u8) !Conf
//---------------------------------------------------------------
// Artifacts to Emit
config.emit_lib_vt = b.option(
bool,
"emit-lib-vt",
"Set defaults for a libghostty-vt-only build (disables xcframework, macOS app, and docs).",
) orelse false;
config.emit_lib_vt = emit_lib_vt;
config.emit_exe = b.option(
bool,
@@ -692,9 +696,9 @@ pub fn osVersionMin(tag: std.Target.Os.Tag) ?std.Target.Query.OsVersion {
.patch = 0,
} },
// iOS 17 picked arbitrarily
// The full Ghostty path compiles metal shaders that require iOS 14.
.ios => .{ .semver = .{
.major = 17,
.major = 14,
.minor = 0,
.patch = 0,
} },
@@ -705,6 +709,15 @@ pub fn osVersionMin(tag: std.Target.Os.Tag) ?std.Target.Query.OsVersion {
};
}
/// Returns the minimum OS version for lib-vt build.
///
/// This should only be used for Darwin targets.
pub fn osVersionMinLibVt(tag: std.Target.Os.Tag) ?std.Target.Query.OsVersion {
// lib-vt has no newer deployment target requirement.
if (tag == .ios) return .{ .semver = .{ .major = 13, .minor = 0, .patch = 0 } };
return osVersionMin(tag);
}
// Returns a ResolvedTarget for a mac with a `target.result.cpu.model.name` of `generic`.
// `b.standardTargetOptions()` returns a more specific cpu like `apple_a15`.
//

4
src/build/GhosttyLibVt.zig
View File

@@ -183,7 +183,7 @@ pub fn initStaticAppleUniversal(
const target_query: std.Target.Query = .{
.cpu_arch = .aarch64,
.os_tag = p.os_tag,
.os_version_min = Config.osVersionMin(p.os_tag),
.os_version_min = Config.osVersionMinLibVt(p.os_tag),
};
if (detectAppleSDK(
b.graph.io,
@@ -197,7 +197,7 @@ pub fn initStaticAppleUniversal(
const sim_zig = try zig.retarget(b, cfg, deps, b.resolveTargetQuery(.{
.cpu_arch = .aarch64,
.os_tag = p.os_tag,
.os_version_min = Config.osVersionMin(p.os_tag),
.os_version_min = Config.osVersionMinLibVt(p.os_tag),
.abi = .simulator,
.cpu_model = .{ .explicit = &std.Target.aarch64.cpu.apple_a17 },
}));