check for errno.h

diff --git a/configure.ac b/configure.ac
index ccc01a9..dcfae4d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1181,6 +1181,7 @@ AC_CHECK_HEADERS(
         sys/resource.h \
         libgen.h \
         locale.h \
+        errno.h \
         setjmp.h,
 dnl to do if not found
 [],