--- gn/toolchain/BUILD.gn	2026-04-29 04:15:59.000000000 +0800
+++ gn/toolchain/BUILD.gn	2026-05-08 06:57:56.000000000 +0800
@@ -30,9 +30,9 @@
   # dsymutil seems to kill the machine when too many processes are run in
   # parallel, so we need to use a pool to limit the concurrency when passing
   # large -j to Ninja (e.g. Goma build). Unfortunately this is also one of the
-  # slowest steps in a build, so we don't want to limit too much. Use the number
-  # of CPUs as a default.
-  dlsymutil_pool_depth = exec_script("num_cpus.py", [], "value")
+  # slowest steps in a build, so we don't want to limit too much.
+  # Hardcode a reasonable default to avoid exec_script python dependency.
+  dlsymutil_pool_depth = 4
 
   # Too many linkers running at once causes issues for some builders. Allow
   # such builders to limit the number of concurrent link steps.
@@ -58,13 +58,9 @@
   pool("dsymutil_pool") {
     depth = dlsymutil_pool_depth
   }
-  if (0 <= link_pool_depth) {
+  if (0 < link_pool_depth) {
     pool("link_pool") {
-      if (link_pool_depth == 0) {
-        depth = exec_script("num_cpus.py", [], "value")
-      } else {
-        depth = link_pool_depth
-      }
+      depth = link_pool_depth
     }
   }
 }
@@ -307,7 +303,7 @@
 
     tool("alink") {
       if (current_os == "mac" || current_os == "ios" || current_os == "tvos") {
-        command = "libtool -static -o {{output}} -no_warning_for_no_symbols {{inputs}}"
+        command = "libtool -static -o {{output}} {{inputs}}"
       } else {
         rspfile = "{{output}}.rsp"
         rspfile_content = "{{inputs}}"