Fix CLOSE_RANGE_CLOEXEC build error on Alpine (#873)

Copilot · rzhao271 · web-flow · commit ac22bd8937fc · 2026-01-13T23:34:49.000Z
Co-authored-by: copilot-swe-agent[bot] &lt;198982749+Copilot@users.noreply.github.com&gt;
Co-authored-by: rzhao271 &lt;7199958+rzhao271@users.noreply.github.com&gt;
diff --git a/.gitignore b/.gitignore
@@ -13,3 +13,4 @@ fixtures/space folder/
 .vscode/ipch/
 yarn.lock
 prebuilds/
+_codeql_detected_source_root
diff --git a/src/unix/pty.cc b/src/unix/pty.cc
@@ -131,7 +131,7 @@ SetCloseOnExec(int fd) {
 static void
 pty_close_inherited_fds() {
   // Try close_range() first (Linux 5.9+, glibc 2.34+)
-  #if defined(SYS_close_range)
+  #if defined(SYS_close_range) && defined(CLOSE_RANGE_CLOEXEC)
   if (syscall(SYS_close_range, 3, ~0U, CLOSE_RANGE_CLOEXEC) == 0) {
     return;
   }

Original file line number	Diff line number	Diff line change
`@@ -131,7 +131,7 @@ SetCloseOnExec(int fd) {`
`131`	`131`	`static void`
`132`	`132`	`pty_close_inherited_fds() {`
`133`	`133`	`// Try close_range() first (Linux 5.9+, glibc 2.34+)`
`134`		`- #if defined(SYS_close_range)`
	`134`	`+ #if defined(SYS_close_range) && defined(CLOSE_RANGE_CLOEXEC)`
`135`	`135`	`if (syscall(SYS_close_range, 3, ~0U, CLOSE_RANGE_CLOEXEC) == 0) {`
`136`	`136`	`return;`
`137`	`137`	`}`