===================================================================
RCS file: /cvs/mandoc/configure,v
retrieving revision 1.43.2.9
retrieving revision 1.43.2.10
diff -u -p -r1.43.2.9 -r1.43.2.10
--- mandoc/configure	2017/02/16 16:21:04	1.43.2.9
+++ mandoc/configure	2017/02/17 14:50:13	1.43.2.10
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $Id: configure,v 1.43.2.9 2017/02/16 16:21:04 schwarze Exp $
+# $Id: configure,v 1.43.2.10 2017/02/17 14:50:13 schwarze Exp $
 #
 # Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze@openbsd.org>
 #
@@ -33,6 +33,8 @@ echo "config.log: writing..."
 # Initialize all variables here,
 # such that nothing can leak in from the environment.
 
+SOURCEDIR=`dirname "$0"`
+
 MANPATH_DEFAULT="/usr/share/man:/usr/X11R6/man:/usr/local/man"
 OSNAME=
 UTF8_LOCALE=
@@ -151,7 +153,8 @@ ${1}${3}: testing...
 ${COMP} -o test-${1} test-${1}.c ${3}
 __HEREDOC__
 
-	if ${COMP} -o "test-${1}" "test-${1}.c" ${3} 1>&3 2>&3; then
+	if ${COMP} -o "test-${1}" "${SOURCEDIR}/test-${1}.c" ${3} 1>&3 2>&3
+	then
 		echo "${1}${3}: ${CC} succeeded" 1>&3
 	else
 		echo "${1}${3}: ${CC} failed with $?" 1>&3