diff -urN compface-1.4/cmain.c compface-1.4.1/cmain.c
--- compface-1.4/cmain.c	2000-11-23 00:51:03.000000000 +0000
+++ compface-1.4.1/cmain.c	2003-09-26 23:43:35.000000000 +0100
@@ -36,6 +36,10 @@
 #include <string.h>
 #endif
 
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+
 #include "compface.h"
 
 /* the buffer is longer than needed to handle sparse input formats */
diff -urN compface-1.4/configure.in compface-1.4.1/configure.in
--- compface-1.4/configure.in	2000-11-22 13:41:57.000000000 +0000
+++ compface-1.4.1/configure.in	2003-09-26 23:41:58.000000000 +0100
@@ -12,7 +12,7 @@
 
 dnl Checks for header files.
 AC_HEADER_STDC
-AC_CHECK_HEADERS(fcntl.h strings.h)
+AC_CHECK_HEADERS(fcntl.h strings.h errno.h)
 
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_CHECK_FUNCS(strerror)
diff -urN compface-1.4/uncmain.c compface-1.4.1/uncmain.c
--- compface-1.4/uncmain.c	2000-11-23 00:51:24.000000000 +0000
+++ compface-1.4.1/uncmain.c	2003-09-26 23:43:33.000000000 +0100
@@ -36,6 +36,10 @@
 #include <string.h>
 #endif
 
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+
 #include "compface.h"
 
 /* the buffer is longer than needed to handle sparse input formats */