Eli Schwartz <eschwart...@gmail.com> writes:

> Many packages perform automagic dependencies on gdk's backend
> implementations by checking if the macro is defined and then using the
> code it unlocks, rather than having a buildsystem option such as
> -Dwayland=true.
>
Doesn't gtk3 need this too? Also, could we have an upstream report
making them aware of this for gtk4?

> It's unfeasible to patch every such package's source code to add
> configure options and respect them. Instead add a truly filthy hack and
> permit gtk itself to selectively show or hide the windowing system in
> use.
>
> Bug: https://bugs.gentoo.org/624960
> Signed-off-by: Eli Schwartz <eschwart...@gmail.com>
> ---
>  ...-poison-macro-to-hide-GDK_WINDOWING_.patch | 25 ++++++++++---------
>  gui-libs/gtk/gtk-4.12.5-r1.ebuild             |  7 ++++++
>  ...-4.12.5-r1.ebuild => gtk-4.12.5-r2.ebuild} |  9 ++++++-
>  ...gtk-4.14.4.ebuild => gtk-4.14.3-r1.ebuild} |  7 ++++++
>  ...gtk-4.14.3.ebuild => gtk-4.14.4-r1.ebuild} |  7 ++++++
>  5 files changed, 42 insertions(+), 13 deletions(-)
>  copy {x11-libs/gtk+ => 
> gui-libs/gtk}/files/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch 
> (86%)
>  copy gui-libs/gtk/{gtk-4.12.5-r1.ebuild => gtk-4.12.5-r2.ebuild} (94%)
>  rename gui-libs/gtk/{gtk-4.14.4.ebuild => gtk-4.14.3-r1.ebuild} (96%)
>  rename gui-libs/gtk/{gtk-4.14.3.ebuild => gtk-4.14.4-r1.ebuild} (96%)
>
> diff --git 
> a/x11-libs/gtk+/files/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
>  b/gui-libs/gtk/files/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
> similarity index 86%
> copy from 
> x11-libs/gtk+/files/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
> copy to 
> gui-libs/gtk/files/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
> index 9bba12f8445b..4e078610f8cb 100644
> --- 
> a/x11-libs/gtk+/files/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
> +++ 
> b/gui-libs/gtk/files/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
> @@ -1,4 +1,4 @@
> -From 25bdad805bb9e16032baf4480e9c1e432ddef49b Mon Sep 17 00:00:00 2001
> +From 0537043f72ea1a634b101efa9e11cc0a22baaf71 Mon Sep 17 00:00:00 2001
>  From: Eli Schwartz <eschwart...@gmail.com>
>  Date: Wed, 19 Jun 2024 21:28:31 -0400
>  Subject: [PATCH] gdk: add a "poison" macro to hide GDK_WINDOWING_*
> @@ -34,10 +34,10 @@ Signed-off-by: Eli Schwartz <eschwart...@gmail.com>
>   3 files changed, 15 insertions(+)
>  
>  diff --git a/gdk/gdkconfig.h.meson b/gdk/gdkconfig.h.meson
> -index 7db19e0470..6bee207e94 100644
> +index d5b48f3184..22baab52ae 100644
>  --- a/gdk/gdkconfig.h.meson
>  +++ b/gdk/gdkconfig.h.meson
> -@@ -10,9 +10,16 @@
> +@@ -10,10 +10,17 @@
>   G_BEGIN_DECLS
>   
>   
> @@ -46,21 +46,22 @@ index 7db19e0470..6bee207e94 100644
>  +#endif
>  +
>   #mesondefine GDK_WINDOWING_BROADWAY
> + #mesondefine GDK_WINDOWING_MACOS
>  +
>  +#ifndef GENTOO_GTK_HIDE_WAYLAND
>   #mesondefine GDK_WINDOWING_WAYLAND
>  +#endif
>  +
>   #mesondefine GDK_WINDOWING_WIN32
> - #mesondefine GDK_WINDOWING_QUARTZ
>   
> + #mesondefine GDK_RENDERING_CAIRO
>  diff --git a/gdk/wayland/gdkwayland.h b/gdk/wayland/gdkwayland.h
> -index 2b79295add..5f0e9cfa81 100644
> +index 846445910e..5d84619295 100644
>  --- a/gdk/wayland/gdkwayland.h
>  +++ b/gdk/wayland/gdkwayland.h
> -@@ -25,6 +25,10 @@
> - #ifndef __GDK_WAYLAND_H__
> - #define __GDK_WAYLAND_H__
> +@@ -24,6 +24,10 @@
> + 
> + #pragma once
>   
>  +#ifdef GENTOO_GTK_HIDE_WAYLAND
>  +  #error "A Gentoo ebuild has hidden wayland and it cannot be used in this 
> compilation unit. Please file a bug if you see this error."
> @@ -70,12 +71,12 @@ index 2b79295add..5f0e9cfa81 100644
>   
>   #define __GDKWAYLAND_H_INSIDE__
>  diff --git a/gdk/x11/gdkx.h b/gdk/x11/gdkx.h
> -index 1f64bccb6d..256c83015e 100644
> +index 6bef6b6de8..d4f8b94550 100644
>  --- a/gdk/x11/gdkx.h
>  +++ b/gdk/x11/gdkx.h
> -@@ -25,6 +25,10 @@
> - #ifndef __GDK_X_H__
> - #define __GDK_X_H__
> +@@ -24,6 +24,10 @@
> + 
> + #pragma once
>   
>  +#ifdef GENTOO_GTK_HIDE_X11
>  +  #error "A Gentoo ebuild has hidden x11 and it cannot be used in this 
> compilation unit. Please file a bug if you see this error."
> diff --git a/gui-libs/gtk/gtk-4.12.5-r1.ebuild 
> b/gui-libs/gtk/gtk-4.12.5-r1.ebuild
> index cd5ffd7bad88..aec0c8889e71 100644
> --- a/gui-libs/gtk/gtk-4.12.5-r1.ebuild
> +++ b/gui-libs/gtk/gtk-4.12.5-r1.ebuild
> @@ -100,6 +100,13 @@ BDEPEND="
>       )
>  "
>  
> +PATCHES=(
> +     # Gentoo-specific patch to add a "poison" macro support, allowing other 
> ebuilds
> +     # with USE="-wayland -X" to trick gtk into claiming that it wasn't 
> built with
> +     # such support.
> +     "${FILESDIR}"/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
> +)
> +
>  python_check_deps() {
>       python_has_version "dev-python/pygobject:3[${PYTHON_USEDEP}]" || return
>  }
> diff --git a/gui-libs/gtk/gtk-4.12.5-r1.ebuild 
> b/gui-libs/gtk/gtk-4.12.5-r2.ebuild
> similarity index 94%
> copy from gui-libs/gtk/gtk-4.12.5-r1.ebuild
> copy to gui-libs/gtk/gtk-4.12.5-r2.ebuild
> index cd5ffd7bad88..2b6fd10d8caa 100644
> --- a/gui-libs/gtk/gtk-4.12.5-r1.ebuild
> +++ b/gui-libs/gtk/gtk-4.12.5-r2.ebuild
> @@ -16,7 +16,7 @@ REQUIRED_USE="
>       test? ( introspection )
>  "
>  
> -KEYWORDS="~alpha amd64 arm arm64 ~ia64 ~loong ppc ppc64 ~riscv sparc x86"
> +KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~ia64 ~loong ~ppc ~ppc64 ~riscv ~sparc 
> ~x86"
>  
>  COMMON_DEPEND="
>       >=dev-libs/glib-2.76.0:2
> @@ -100,6 +100,13 @@ BDEPEND="
>       )
>  "
>  
> +PATCHES=(
> +     # Gentoo-specific patch to add a "poison" macro support, allowing other 
> ebuilds
> +     # with USE="-wayland -X" to trick gtk into claiming that it wasn't 
> built with
> +     # such support.
> +     "${FILESDIR}"/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
> +)
> +
>  python_check_deps() {
>       python_has_version "dev-python/pygobject:3[${PYTHON_USEDEP}]" || return
>  }
> diff --git a/gui-libs/gtk/gtk-4.14.4.ebuild 
> b/gui-libs/gtk/gtk-4.14.3-r1.ebuild
> similarity index 96%
> rename from gui-libs/gtk/gtk-4.14.4.ebuild
> rename to gui-libs/gtk/gtk-4.14.3-r1.ebuild
> index 7f0c8930ab74..6bd05ace61ea 100644
> --- a/gui-libs/gtk/gtk-4.14.4.ebuild
> +++ b/gui-libs/gtk/gtk-4.14.3-r1.ebuild
> @@ -108,6 +108,13 @@ BDEPEND="
>       )
>  "
>  
> +PATCHES=(
> +     # Gentoo-specific patch to add a "poison" macro support, allowing other 
> ebuilds
> +     # with USE="-wayland -X" to trick gtk into claiming that it wasn't 
> built with
> +     # such support.
> +     "${FILESDIR}"/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
> +)
> +
>  python_check_deps() {
>       python_has_version "dev-python/pygobject:3[${PYTHON_USEDEP}]" || return
>  }
> diff --git a/gui-libs/gtk/gtk-4.14.3.ebuild 
> b/gui-libs/gtk/gtk-4.14.4-r1.ebuild
> similarity index 96%
> rename from gui-libs/gtk/gtk-4.14.3.ebuild
> rename to gui-libs/gtk/gtk-4.14.4-r1.ebuild
> index 7f0c8930ab74..6bd05ace61ea 100644
> --- a/gui-libs/gtk/gtk-4.14.3.ebuild
> +++ b/gui-libs/gtk/gtk-4.14.4-r1.ebuild
> @@ -108,6 +108,13 @@ BDEPEND="
>       )
>  "
>  
> +PATCHES=(
> +     # Gentoo-specific patch to add a "poison" macro support, allowing other 
> ebuilds
> +     # with USE="-wayland -X" to trick gtk into claiming that it wasn't 
> built with
> +     # such support.
> +     "${FILESDIR}"/0001-gdk-add-a-poison-macro-to-hide-GDK_WINDOWING_.patch
> +)
> +
>  python_check_deps() {
>       python_has_version "dev-python/pygobject:3[${PYTHON_USEDEP}]" || return
>  }

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