diff --git a/toolchain/gcc_toolchain.gni b/toolchain/gcc_toolchain.gni
index 80e2a362a..df138c87b 100644
--- a/build/toolchain/gcc_toolchain.gni
+++ b/build/toolchain/gcc_toolchain.gni
@@ -355,6 +355,8 @@ template("gcc_toolchain") {
         # AIX does not support either -D (deterministic output) or response
         # files.
         command = "$ar -X64 {{arflags}} -r -c -s {{output}} {{inputs}}"
+      } else if (current_os == "mac") {
+        command = "$ar {{arflags}} -r -c -s {{output}} {{inputs}}"
       } else {
         rspfile = "{{output}}.rsp"
         rspfile_content = "{{inputs}}"
@@ -546,7 +548,7 @@ template("gcc_toolchain") {
 
       start_group_flag = ""
       end_group_flag = ""
-      if (current_os != "aix") {
+      if (current_os != "aix" && current_os != "mac") {
         # the "--start-group .. --end-group" feature isn't available on the aix ld.
         start_group_flag = "-Wl,--start-group"
         end_group_flag = "-Wl,--end-group "