Add pledge() support

While here, update MAINTAINER.  Diff from Timo Myyra (maintainer)

x11/pekwm/Makefile

@@ -1,18 +1,19 @@
-# $OpenBSD: Makefile,v 1.33 2017/09/25 21:25:19 sthen Exp $
+# $OpenBSD: Makefile,v 1.34 2017/12/20 17:22:37 jca Exp $
 
 COMMENT=	aewm++ based pretty themable window manager
 
 DISTNAME=	pekwm-0.1.17
-REVISION=	2
+REVISION=	3
 CATEGORIES=	x11
 
 HOMEPAGE=	https://www.pekwm.org/
 
-MAINTAINER=	Timo Myyra <timo.myyra@wickedbsd.net>
+MAINTAINER=	Timo Myyra <timo.myyra@bittivirhe.fi>
 
 # GPLv2
 PERMIT_PACKAGE_CDROM=	Yes
 
+# uses pledge()
 WANTLIB += ICE SM X11 Xext Xft Xinerama Xpm Xrandr c iconv jpeg m png z
 WANTLIB += ${COMPILER_LIBCXX}
 
@@ -26,11 +27,13 @@ NO_TEST=	Yes
 
 USE_GMAKE=	Yes
 
-CONFIGURE_STYLE=gnu
+CONFIGURE_STYLE=autoconf
 CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
 		LDFLAGS="-L${LOCALBASE}/lib"
 CONFIGURE_ARGS=	--enable-xinerama
 
+AUTOCONF_VERSION=	2.69
+
 post-install:
 	@mv ${WRKINST}/etc/pekwm ${PREFIX}/share/examples
 

x11/pekwm/patches/patch-configure_ac

@@ -0,0 +1,15 @@
+$OpenBSD: patch-configure_ac,v 1.1 2017/12/20 17:22:37 jca Exp $
+
+Index: configure.ac
+--- configure.ac.orig
++++ configure.ac
+@@ -31,6 +31,9 @@ CXXFLAGS="$CXXFLAGS $INCICONV"
+ dnl Check for iconvctl
+ AC_CHECK_FUNC(iconvctl, [AC_DEFINE(HAVE_ICONVCTL, [1], [Define to 1 if you the iconvctl call])], )
+ 
++dnl Check for pledge
++AC_CHECK_FUNC(pledge, [AC_DEFINE(HAVE_PLEDGE, [1], [Define to 1 if you the pledge call])], )
++
+ dnl add x11 to the env
+ AC_PATH_X
+ AC_PATH_XTRA

x11/pekwm/patches/patch-src_main_cc

@@ -0,0 +1,18 @@
+$OpenBSD: patch-src_main_cc,v 1.1 2017/12/20 17:22:37 jca Exp $
+
+Index: src/main.cc
+--- src/main.cc.orig
++++ src/main.cc
+@@ -124,6 +124,12 @@ main(int argc, char **argv)
+ #endif // DEBUG
+ 
+     WindowManager *wm = WindowManager::start(command_line, config_file, replace);
++#if HAVE_PLEDGE
++    if (pledge("stdio rpath wpath cpath proc exec", NULL) == -1) {
++        cerr << "failed to pledge" << endl;
++        return 1;
++    }
++#endif
+ 
+     if (wm) {
+         try {