app-editors/emacs: Support pure GTK

Emacs 29 will support window systems X11, pure GTK (without X11), or
Nextstep (Aqua/Cocoa). The ebuild selects these as follows:
  "aqua" -> Nextstep
  "gtk -X" -> pure GTK
  otherwise -> X11

Closes: https://bugs.gentoo.org/831154
Package-Manager: Portage-3.0.30, Repoman-3.0.3
Signed-off-by: Ulrich Müller <ulm@gentoo.org>

1 files changed, 87 insertions, 47 deletions

diff --git a/app-editors/emacs/emacs-29.0.9999.ebuild b/app-editors/emacs/emacs-29.0.9999.ebuild
index d1f2256d067f..69582b7f2ff4 100644
--- a/app-editors/emacs/emacs-29.0.9999.ebuild
+++ b/app-editors/emacs/emacs-29.0.9999.ebuild
@@ -40,9 +40,59 @@ DESCRIPTION="The extensible, customizable, self-documenting real-time display ed
 HOMEPAGE="https://www.gnu.org/software/emacs/"
 
 LICENSE="GPL-3+ FDL-1.3+ BSD HPND MIT W3C unicode PSF-2"
-IUSE="acl alsa aqua athena cairo dbus dynamic-loading games gconf gfile gif +gmp gpm gsettings gtk gui gzip-el harfbuzz imagemagick +inotify jit jpeg json kerberos lcms libxml2 livecd m17n-lib mailutils motif png selinux sound source ssl svg systemd +threads tiff toolkit-scroll-bars webp wide-int Xaw3d xft +xpm xwidgets zlib"
+IUSE="acl alsa aqua athena cairo dbus dynamic-loading games gconf gfile gif +gmp gpm gsettings gtk gui gzip-el harfbuzz imagemagick +inotify jit jpeg json kerberos lcms libxml2 livecd m17n-lib mailutils motif png selinux sound source ssl svg systemd +threads tiff toolkit-scroll-bars webp wide-int +X Xaw3d xft +xpm xwidgets zlib"
 RESTRICT="test"
 
+X_DEPEND="x11-libs/libICE
+	x11-libs/libSM
+	x11-libs/libX11
+	x11-libs/libXext
+	x11-libs/libXfixes
+	x11-libs/libXinerama
+	x11-libs/libXrandr
+	x11-libs/libxcb
+	x11-misc/xbitmaps
+	xpm? ( x11-libs/libXpm )
+	xft? (
+		media-libs/fontconfig
+		media-libs/freetype
+		x11-libs/libXft
+		x11-libs/libXrender
+		cairo? ( >=x11-libs/cairo-1.12.18 )
+		harfbuzz? ( media-libs/harfbuzz:0= )
+		m17n-lib? (
+			>=dev-libs/libotf-0.9.4
+			>=dev-libs/m17n-lib-1.5.1
+		)
+	)
+	gtk? (
+		x11-libs/gtk+:3
+		xwidgets? (
+			net-libs/webkit-gtk:4=
+			x11-libs/libXcomposite
+		)
+	)
+	!gtk? (
+		motif? (
+			>=x11-libs/motif-2.3:0
+			x11-libs/libXpm
+			x11-libs/libXmu
+			x11-libs/libXt
+		)
+		!motif? (
+			Xaw3d? (
+				x11-libs/libXaw3d
+				x11-libs/libXmu
+				x11-libs/libXt
+			)
+			!Xaw3d? ( athena? (
+				x11-libs/libXaw
+				x11-libs/libXmu
+				x11-libs/libXt
+			) )
+		)
+	)"
+
 RDEPEND="app-emacs/emacs-common[games?,gui(-)?]
 	sys-libs/ncurses:0=
 	acl? ( virtual/acl )
@@ -72,62 +122,30 @@ RDEPEND="app-emacs/emacs-common[games?,gui(-)?]
 		webp? ( media-libs/libwebp:0= )
 		imagemagick? ( >=media-gfx/imagemagick-6.6.2:0= )
 		!aqua? (
-			x11-libs/libICE
-			x11-libs/libSM
-			x11-libs/libX11
-			x11-libs/libXext
-			x11-libs/libXfixes
-			x11-libs/libXinerama
-			x11-libs/libXrandr
-			x11-libs/libxcb
-			x11-misc/xbitmaps
 			gconf? ( >=gnome-base/gconf-2.26.2 )
 			gsettings? ( >=dev-libs/glib-2.28.6 )
-			xpm? ( x11-libs/libXpm )
-			xft? (
+			gtk? ( !X? (
 				media-libs/fontconfig
 				media-libs/freetype
-				x11-libs/libXft
-				x11-libs/libXrender
-				cairo? ( >=x11-libs/cairo-1.12.18 )
+				>=x11-libs/cairo-1.12.18
+				x11-libs/gtk+:3
 				harfbuzz? ( media-libs/harfbuzz:0= )
 				m17n-lib? (
 					>=dev-libs/libotf-0.9.4
 					>=dev-libs/m17n-lib-1.5.1
 				)
-			)
-			gtk? (
-				x11-libs/gtk+:3
-				xwidgets? (
-					net-libs/webkit-gtk:4=
-					x11-libs/libXcomposite
-				)
-			)
-			!gtk? (
-				motif? (
-					>=x11-libs/motif-2.3:0
-					x11-libs/libXpm
-					x11-libs/libXmu
-					x11-libs/libXt
-				)
-				!motif? (
-					Xaw3d? (
-						x11-libs/libXaw3d
-						x11-libs/libXmu
-						x11-libs/libXt
-					)
-					!Xaw3d? ( athena? (
-						x11-libs/libXaw
-						x11-libs/libXmu
-						x11-libs/libXt
-					) )
-				)
-			)
+				xwidgets? ( net-libs/webkit-gtk:4= )
+			) )
+			!gtk? ( ${X_DEPEND} )
+			X? ( ${X_DEPEND} )
 		)
 	)"
 
 DEPEND="${RDEPEND}
-	gui? ( !aqua? ( x11-base/xorg-proto ) )"
+	gui? ( !aqua? (
+		!gtk? ( x11-base/xorg-proto )
+		X? ( x11-base/xorg-proto )
+	) )"
 
 BDEPEND="sys-apps/texinfo
 	virtual/pkgconfig
@@ -192,15 +210,37 @@ src_configure() {
 		myconf+=" --with-sound=$(usex sound oss)"
 	fi
 
+	# Emacs supports these window systems:
+	# X11, pure GTK (without X11), or Nextstep (Aqua/Cocoa).
+	# General GUI support is enabled by the "gui" USE flag, then
+	# the window system is selected as follows:
+	#   "aqua" -> Nextstep
+	#   "gtk -X" -> pure GTK
+	#   otherwise -> X11
+	# For X11 there is the further choice of toolkits GTK, Motif,
+	# Athena (Lucid), or no toolkit. They are enabled (in order of
+	# preference) with the "gtk", "motif", "Xaw3d", and "athena" flags.
+
 	if ! use gui; then
 		einfo "Configuring to build without window system support"
-		myconf+=" --without-x --without-ns"
+		myconf+=" --without-x --without-pgtk --without-ns"
 	elif use aqua; then
 		einfo "Configuring to build with Nextstep (Macintosh Cocoa) support"
 		myconf+=" --with-ns --disable-ns-self-contained"
-		myconf+=" --without-x"
+		myconf+=" --without-x --without-pgtk"
+	elif use gtk || ! use X; then
+		einfo "Configuring to build with pure GTK (without X11) support"
+		myconf+=" --with-pgtk --without-x --without-ns"
+		myconf+=" $(use_with gconf)"
+		myconf+=" $(use_with gsettings)"
+		myconf+=" $(use_with toolkit-scroll-bars)"
+		myconf+=" $(use_with harfbuzz)"
+		myconf+=" $(use_with m17n-lib libotf)"
+		myconf+=" $(use_with m17n-lib m17n-flt)"
+		myconf+=" $(use_with xwidgets)"
 	else
-		myconf+=" --with-x --without-ns"
+		# X11
+		myconf+=" --with-x --without-pgtk --without-ns"
 		myconf+=" $(use_with gconf)"
 		myconf+=" $(use_with gsettings)"
 		myconf+=" $(use_with toolkit-scroll-bars)"