===================================================================
RCS file: /cvs/mandoc/configure,v
retrieving revision 1.75
retrieving revision 1.76
diff -u -p -r1.75 -r1.76
--- mandoc/configure	2020/06/15 01:37:15	1.75
+++ mandoc/configure	2020/06/22 20:00:38	1.76
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $Id: configure,v 1.75 2020/06/15 01:37:15 schwarze Exp $
+# $Id: configure,v 1.76 2020/06/22 20:00:38 schwarze Exp $
 #
 # Copyright (c) 2014-2020 Ingo Schwarze <schwarze@openbsd.org>
 #
@@ -55,6 +55,7 @@ BUILD_CGI=0
 BUILD_CATMAN=0
 INSTALL_LIBMANDOC=0
 
+HAVE_ATTRIBUTE=
 HAVE_CMSG=
 HAVE_DIRENT_NAMLEN=
 HAVE_EFTYPE=
@@ -294,6 +295,7 @@ fi
 # --- tests for config.h  ----------------------------------------------
 
 # --- library functions ---
+runtest attribute	ATTRIBUTE	|| true
 runtest cmsg		CMSG		"" "-D_XPG4_2" || true
 runtest dirent-namlen	DIRENT_NAMLEN	|| true
 runtest be32toh		ENDIAN		|| true
@@ -422,10 +424,6 @@ cat << __HEREDOC__
 #error "Do not use C++.  See the INSTALL file."
 #endif
 
-#if !defined(__GNUC__) || (__GNUC__ < 4)
-#define __attribute__(x)
-#endif
-
 __HEREDOC__
 
 [ ${NEED_GNU_SOURCE} -eq 0 ] || echo "#define _GNU_SOURCE"
@@ -447,6 +445,7 @@ echo "#define OSENUM ${OSENUM}"
 [ -n "${OSNAME}" ] && echo "#define OSNAME \"${OSNAME}\""
 [ -n "${UTF8_LOCALE}" ] && echo "#define UTF8_LOCALE \"${UTF8_LOCALE}\""
 [ -n "${HOMEBREWDIR}" ] && echo "#define HOMEBREWDIR \"${HOMEBREWDIR}\""
+[ ${HAVE_ATTRIBUTE} -eq 0 ] && echo "#define __attribute__(x)"
 [ ${HAVE_EFTYPE} -eq 0 ] && echo "#define EFTYPE EINVAL"
 [ ${HAVE_O_DIRECTORY} -eq 0 ] && echo "#define O_DIRECTORY 0"
 [ ${HAVE_PATH_MAX} -eq 0 ] && echo "#define PATH_MAX 4096"