# HG changeset patch
# User serge-sans-paille <sguelton@mozilla.com>
# Date 1768903043 0
# Node ID a924182c4e55e19b1b8dbd5904e8f9ca99e79b98
# Parent  cd5449e09b6cd3e3b0bb1f2d6d8a8048e8883535
Bug 2008085 - Provide AR_FLAGS customization point r=glandium

In a similar way to other customization flags.

That way users can specify `--thin` if they want to to reduce disk
pressure.

Differential Revision: https://phabricator.services.mozilla.com/D278841


diff --git a/build/moz.configure/toolchain.configure b/build/moz.configure/toolchain.configure
--- a/build/moz.configure/toolchain.configure
+++ b/build/moz.configure/toolchain.configure
@@ -4,6 +4,13 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+option(
+    env="AR_FLAGS",
+    help="Extra flags for creating static archives",
+    nargs=1,
+    default="",
+)
+
 # Code optimization
 # ==============================================================
 
@@ -3346,12 +3353,14 @@
     if not toolchain_prefix:
         toolchain_prefix = dependable(None)
 
-    @depends(toolchain_prefix, c_compiler)
-    def ar_config(toolchain_prefix, c_compiler):
+    @depends(toolchain_prefix, c_compiler, "AR_FLAGS")
+    @imports(_from="mozbuild.shellutil", _import="split")
+    def ar_config(toolchain_prefix, c_compiler, env_flags):
+        extra_ar_flags = tuple(split(env_flags[0]))
         if c_compiler.type == "clang-cl":
             return namespace(
                 names=("llvm-lib",),
-                flags=("-llvmlibthin", "-out:$@"),
+                flags=("-llvmlibthin", "-out:$@") + extra_ar_flags,
             )
 
         names = tuple("%s%s" % (p, "ar") for p in (toolchain_prefix or ()) + ("",))
@@ -3368,7 +3377,7 @@
 
         return namespace(
             names=names,
-            flags=("crs", "$@"),
+            flags=("crs",) + extra_ar_flags + ("$@",),
         )
 
     return ar_config