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-rw-r--r--library/std/src/sys/wasi/os.rs5
1 files changed, 5 insertions, 0 deletions
diff --git a/library/std/src/sys/wasi/os.rs b/library/std/src/sys/wasi/os.rs
index 9919dc7087e..197bdeda4fb 100644
--- a/library/std/src/sys/wasi/os.rs
+++ b/library/std/src/sys/wasi/os.rs
@@ -224,6 +224,11 @@ pub fn unsetenv(n: &OsStr) -> io::Result<()> {
     })
 }
 
+#[allow(dead_code)]
+pub fn page_size() -> usize {
+    unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize }
+}
+
 pub fn temp_dir() -> PathBuf {
     panic!("no filesystem on wasm")
 }