illumos: add syncfs

https://raw.githubusercontent.com/illumos/illumos-gate/05ce3950cb6a645887911ba82ec91e3c06c5ad7c/usr/src/man/man3c/syncfs.3c [ reworded title slightly - Trevor ] (backport <rust-lang#3990>) (cherry picked from commit d18863d)
tgross35 · Nov 6, 2024 · 8ca43c6 · 8ca43c6
1 parent 1d95ed6
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diff --git a/libc-test/semver/illumos.txt b/libc-test/semver/illumos.txt
@@ -12,3 +12,4 @@ pthread_attr_get_np
 pthread_attr_getstackaddr
 pthread_attr_setstack
 ptsname_r
+syncfs
diff --git a/src/unix/solarish/illumos.rs b/src/unix/solarish/illumos.rs
@@ -112,4 +112,6 @@ extern "C" {
     pub fn getpagesizes2(pagesize: *mut ::size_t, nelem: ::c_int) -> ::c_int;
 
     pub fn ptsname_r(fildes: ::c_int, name: *mut ::c_char, namelen: ::size_t) -> ::c_int;
+
+    pub fn syncfs(fd: ::c_int) -> ::c_int;
 }