gh-140421: Disable perf trampoline on older macOS (#144647)

jmroot · web-flow · commit d5f96c86653d · 2026-02-10T23:27:16.000-05:00
Trampoline requires clock_gettime() which was added in macOS 10.12.
diff --git a/Misc/NEWS.d/next/Build/2026-02-10-06-31-29.gh-issue-140421.vxosUx.rst b/Misc/NEWS.d/next/Build/2026-02-10-06-31-29.gh-issue-140421.vxosUx.rst
@@ -0,0 +1 @@
+Disable the perf trampoline on older macOS versions where it cannot be built.
diff --git a/configure b/configure
diff --git a/configure.ac b/configure.ac
@@ -3717,7 +3717,10 @@ AC_MSG_CHECKING([perf trampoline])
 AS_CASE([$PLATFORM_TRIPLET],
   [x86_64-linux-gnu], [perf_trampoline=yes],
   [aarch64-linux-gnu], [perf_trampoline=yes],
-  [darwin], [perf_trampoline=yes],
+  [darwin], [AS_CASE([$MACOSX_DEPLOYMENT_TARGET],
+                [[10.[0-9]|10.1[0-1]]], [perf_trampoline=no],
+                [perf_trampoline=yes]
+            )],
   [perf_trampoline=no]
 )
 AC_MSG_RESULT([$perf_trampoline])

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+Disable the perf trampoline on older macOS versions where it cannot be built.`