x11-wm/i3-gaps: Unbreak build when both DOCS and MANPAGES are selected

Upstream PR: https://github.com/i3/i3/pull/4264

x11-wm/i3-gaps/Makefile

@@ -29,7 +29,7 @@ RUN_DEPENDS=	p5-AnyEvent-I3>=0:devel/p5-AnyEvent-I3 \
 		p5-JSON-XS>=0:converters/p5-JSON-XS \
 		p5-Try-Tiny>=0:lang/p5-Try-Tiny
 
-USES=		compiler:c11 gettext-runtime gmake gnome iconv localbase:ldflags \
+USES=		compiler:c11 gettext-runtime gnome iconv localbase:ldflags \
 		meson perl5 pkgconfig xorg
 USE_GITHUB=	yes
 GH_ACCOUNT=	Airblader

x11-wm/i3-gaps/files/patch-meson.build

@@ -0,0 +1,34 @@
+Upstream PR: https://github.com/i3/i3/pull/4264
+--- meson.build.orig	2020-11-15 18:11:08 UTC
++++ meson.build
+@@ -428,7 +428,9 @@ command_parser = custom_target(
+   command: [perl, parser_gen, '--input=@INPUT@', '--prefix=command'],
+ )
+ 
+-i3srcs += command_parser
++command_parser_dep = declare_dependency(
++    sources : [command_parser]
++)
+ 
+ config_parser = custom_target(
+   'config_parser',
+@@ -441,7 +443,9 @@ config_parser = custom_target(
+   command: [parser_gen, '--input=@INPUT@', '--prefix=config'],
+ )
+ 
+-i3srcs += config_parser
++config_parser_dep = declare_dependency(
++    sources : [config_parser]
++)
+ 
+ # src/log.c uses threading primitives for synchronization
+ thread_dep = dependency('threads')
+@@ -472,6 +476,8 @@ common_deps = [
+   gobject_dep,
+   ev_dep,
+   config_h,
++  command_parser_dep,
++  config_parser_dep
+ ]
+ 
+ executable(