OK, let's try that again.

[fs/lustre-release.git] / libsysio / configure.in

diff --git a/libsysio/configure.in b/libsysio/configure.in
index 9f83269..5de069a 100644 (file)
--- a/libsysio/configure.in
+++ b/libsysio/configure.in
@@ -198,6 +198,21 @@ if test "$machine" = rs6000; then
        machine="powerpc"
 fi
 
+AC_MSG_CHECKING(if readlink returns ssize_t)
+AC_TRY_COMPILE([
+  include <unistd.h>
+],[
+  ssize_t readlink(const char *, char *, size_t);
+],
+  readlink_returns_ssize_t="yes",
+  readlink_returns_ssize_t="yes"
+)
+AC_MSG_RESULT($readlink_returns_ssize_t)
+if test x$readlink_returns_ssize_t = xyes; then
+  AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
+fi
+
+
 # If we can't provoke the declaration of stat64 then we assume the
 # environment supports 64-bit file support naturally. Beware!
 AC_MSG_CHECKING(whether _LARGEFILE64_SOURCE definition is required)