stage2: cleanups to --compress-debug-sections

 * make the setting in the linker backend be non-optional; by this time
   all defaults are supposed to be resolved.
 * integrate with `zig cc`
 * change the CLI parsing to match C compiler parsing, allowing
   `--compress-debug-sections` alone to choose a default encoding of
   zlib.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/link/Elf.zig b/src/link/Elf.zig
index bab7fb44cc..3e9b1ab3ed 100644
--- a/src/link/Elf.zig
+++ b/src/link/Elf.zig
@@ -1351,7 +1351,7 @@ fn linkWithLLD(self: *Elf, comp: *Compilation, prog_node: *std.Progress.Node) !v
         link.hashAddSystemLibs(&man.hash, self.base.options.system_libs);
         man.hash.add(allow_shlib_undefined);
         man.hash.add(self.base.options.bind_global_refs_locally);
-        man.hash.addOptional(self.base.options.compress_debug_sections);
+        man.hash.add(self.base.options.compress_debug_sections);
         man.hash.add(self.base.options.tsan);
         man.hash.addOptionalBytes(self.base.options.sysroot);
         man.hash.add(self.base.options.linker_optimization);
@@ -1755,9 +1755,9 @@ fn linkWithLLD(self: *Elf, comp: *Compilation, prog_node: *std.Progress.Node) !v
             try argv.append("--allow-shlib-undefined");
         }
 
-        if (self.base.options.compress_debug_sections) |how| {
-            const arg = try std.fmt.allocPrint(arena, "--compress-debug-sections={s}", .{@tagName(how)});
-            try argv.append(arg);
+        switch (self.base.options.compress_debug_sections) {
+            .none => {},
+            .zlib => try argv.append("--compress-debug-sections=zlib"),
         }
 
         if (self.base.options.bind_global_refs_locally) {