package/pinentry: remove gtk2 backend support

As we're about to remove libgtk2, we need to first remove support for
the gtk2 backend of pinentry, which this patch does.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>

Config.in.legacy

@@ -146,6 +146,13 @@ endif
 
 comment "Legacy options removed in 2025.11"
 
+config BR2_PACKAGE_PINENTRY_GTK2
+	bool "gtk2 backend of pinentry has been removed"
+	select BR2_LEGACY
+	help
+	  Due to the removal of libgtk2, the gtk2 backend of pinentry
+	  has been removed.
+
 config BR2_PACKAGE_OPENCV4_WITH_GTK
 	bool "opencv4 gtk support has been removed"
 	select BR2_LEGACY

package/pinentry/Config.in

@@ -6,7 +6,6 @@ menuconfig BR2_PACKAGE_PINENTRY
 	select BR2_PACKAGE_LIBGPG_ERROR
 	# At least one backend is needed to avoid build breakage
 	select BR2_PACKAGE_PINENTRY_NCURSES if \
-		!BR2_PACKAGE_PINENTRY_GTK2 && \
 		!BR2_PACKAGE_PINENTRY_QT5
 	help
 	  A collection of simple PIN or pass-phrase entry dialogs
@@ -46,27 +45,6 @@ config BR2_PACKAGE_PINENTRY_NCURSES
 	help
 	  The pinentry-ncurses tool
 
-config BR2_PACKAGE_PINENTRY_GTK2
-	bool "pinentry-gtk2"
-	depends on BR2_PACKAGE_XORG7
-	depends on BR2_USE_WCHAR
-	depends on BR2_TOOLCHAIN_HAS_THREADS
-	depends on BR2_USE_MMU
-	depends on BR2_INSTALL_LIBSTDCPP
-	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
-	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
-	select BR2_PACKAGE_LIBGTK2
-	select BR2_PACKAGE_LIBICONV if !BR2_ENABLE_LOCALE
-	help
-	  The pinentry-gtk2 tool
-
-comment "pinentry-gtk2 needs X and a toolchain w/ wchar, threads, C++, gcc >= 4.9"
-	depends on BR2_USE_MMU
-	depends on BR2_TOOLCHAIN_HAS_SYNC_4
-	depends on !BR2_PACKAGE_XORG7 || !BR2_USE_WCHAR || \
-		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
-		!BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
-
 config BR2_PACKAGE_PINENTRY_QT5
 	bool "pinentry-qt5"
 	depends on BR2_INSTALL_LIBSTDCPP

package/pinentry/pinentry.mk

@@ -13,10 +13,12 @@ PINENTRY_DEPENDENCIES = \
 	libassuan libgpg-error \
 	$(if $(BR2_PACKAGE_LIBICONV),libiconv) \
 	host-pkgconf
+# --disable-libcap to avoid PAM dependency
 PINENTRY_CONF_OPTS += \
 	--with-libassuan-prefix=$(STAGING_DIR)/usr \
 	--with-libgpg-error-prefix=$(STAGING_DIR)/usr \
-	--without-libcap       # requires PAM
+	--without-libcap \
+	--disable-pinentry-gtk2
 
 # Force the path to "gpgrt-config" (from the libgpg-error package) to
 # avoid using the one on host, if present.
@@ -58,14 +60,6 @@ else
 PINENTRY_CONF_OPTS += --disable-ncurses
 endif
 
-# pinentry-gtk2 backend
-ifeq ($(BR2_PACKAGE_PINENTRY_GTK2),y)
-PINENTRY_CONF_OPTS += --enable-pinentry-gtk2
-PINENTRY_DEPENDENCIES += libgtk2
-else
-PINENTRY_CONF_OPTS += --disable-pinentry-gtk2
-endif
-
 # pinentry-qt5 backend
 ifeq ($(BR2_PACKAGE_PINENTRY_QT5),y)
 PINENTRY_CONF_OPTS += --enable-pinentry-qt