Try to fix auto-generated gtd-vcs-identifier.h properly.

While here, fix an implicit declaration.

x11/gnome/todo/Makefile

@@ -1,9 +1,10 @@
-# $OpenBSD: Makefile,v 1.22 2018/05/05 19:22:55 jasper Exp $
+# $OpenBSD: Makefile,v 1.23 2018/05/06 09:08:08 ajacoutot Exp $
 
 COMMENT=		simple task management application
 
 GNOME_PROJECT=		gnome-todo
 GNOME_VERSION=		3.28.1
+REVISION=		0
 
 # GPLv3+
 PERMIT_PACKAGE_CDROM=	Yes
@@ -21,10 +22,4 @@ MODGNOME_TOOLS=		desktop-file-utils gobject-introspection \
 LIB_DEPENDS=		databases/evolution-data-server \
 			devel/libpeas
 
-# XXX
-# Generate this file upfront as it may not be created in time
-# due to ninja's randomization.
-pre-build:
-	exec ${SETENV} ${MAKE_ENV} \
-		${LOCALBASE}/bin/ninja -C ${WRKBUILD} -v src/gtd-vcs-identifier.h
 .include <bsd.port.mk>

x11/gnome/todo/patches/patch-plugins_todoist_gtd-provider-todoist_c

@@ -0,0 +1,16 @@
+$OpenBSD: patch-plugins_todoist_gtd-provider-todoist_c,v 1.3 2018/05/06 09:08:08 ajacoutot Exp $
+
+warning: implicit declaration of function 'strptime' is invalid in C99
+
+Index: plugins/todoist/gtd-provider-todoist.c
+--- plugins/todoist/gtd-provider-todoist.c.orig
++++ plugins/todoist/gtd-provider-todoist.c
+@@ -19,7 +19,7 @@
+ 
+ #define G_LOG_DOMAIN "GtdProviderTodoist"
+ 
+-#define _XOPEN_SOURCE
++#define _XOPEN_SOURCE 700
+ 
+ #include "gtd-debug.h"
+ #include "gtd-provider-todoist.h"

x11/gnome/todo/patches/patch-src_meson_build

@@ -0,0 +1,16 @@
+$OpenBSD: patch-src_meson_build,v 1.1 2018/05/06 09:08:08 ajacoutot Exp $
+
+https://gitlab.gnome.org/GNOME/gnome-todo/issues/170
+
+Index: src/meson.build
+--- src/meson.build.orig
++++ src/meson.build
+@@ -99,6 +99,8 @@ sources += gnome.mkenums(
+   h_template: enum + '.h.template'
+ )
+ 
++sources += vcs_identifier_h
++
+ incs = [
+   top_inc,
+   include_directories(