[Pkg-tigervnc-devel] Bug#963024: buster-pu: package tigervnc/1.9.0+dfsg-3+deb10u2

[Joachim Falk]

Package: release.debian.org
Severity: normal
Tags: buster
User: release.debian.org at packages.debian.org
Usertags: pu

The tigervnc-standalone-server/1.9.0+dfsg-3+deb10u1 package is affected
by a bug in libunwind8 (Bug: #923962) exhibited on architectures arm64,
armel, and armhf that makes it unusable (Bug: #932499) on those architectures.

As a workaround, the proposed update tigervnc/1.9.0+dfsg-3+deb10u2
disables building against libunwind on exactly these three architectures.
Other architectures are not affected by the proposed update.

-- System Information:
Debian Release: 10.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: arm64 (aarch64)

Kernel: Linux 4.19.0-9-arm64 (SMP w/1 CPU core)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
-------------- next part --------------
diff -Nru tigervnc-1.9.0+dfsg/debian/changelog tigervnc-1.9.0+dfsg/debian/changelog
--- tigervnc-1.9.0+dfsg/debian/changelog	2020-01-23 19:03:00.000000000 +0100
+++ tigervnc-1.9.0+dfsg/debian/changelog	2020-06-16 21:36:31.000000000 +0200
@@ -1,3 +1,11 @@
+tigervnc (1.9.0+dfsg-3+deb10u2) buster; urgency=medium
+
+  [ Joachim Falk ]
+  * Don't use libunwind for armel, armhf, and arm64 as this library is buggy
+    (bug #923962) on those architectures (Closes: #932499).
+
+ -- Joachim Falk <joachim.falk at gmx.de>  Tue, 16 Jun 2020 21:36:31 +0200
+
 tigervnc (1.9.0+dfsg-3+deb10u1) buster; urgency=high
 
   [ Joachim Falk ]
diff -Nru tigervnc-1.9.0+dfsg/debian/control tigervnc-1.9.0+dfsg/debian/control
--- tigervnc-1.9.0+dfsg/debian/control	2020-01-23 19:02:50.000000000 +0100
+++ tigervnc-1.9.0+dfsg/debian/control	2020-06-16 21:36:31.000000000 +0200
@@ -54,7 +54,8 @@
  libaudit-dev [linux-any],
  libdrm-dev (>= 2.4.89) [!hurd-i386],
  libgl1-mesa-dev (>= 9.2),
- libunwind-dev [amd64 arm64 armel armhf hppa i386 ia64 mips64 mips64el mipsel powerpc powerpcspe ppc64 ppc64el sh4],
+# Don't use libunwind for armel, armhf, and arm64 as this library is buggy (bug #923962) on those architectures.
+ libunwind-dev [amd64 hppa i386 ia64 mips64 mips64el mipsel powerpc powerpcspe ppc64 ppc64el sh4],
  libxmuu-dev (>= 1:0.99.1),
  libxext-dev (>= 1:0.99.1),
  libx11-dev (>= 2:1.6),
diff -Nru tigervnc-1.9.0+dfsg/debian/rules tigervnc-1.9.0+dfsg/debian/rules
--- tigervnc-1.9.0+dfsg/debian/rules	2020-01-23 19:02:51.000000000 +0100
+++ tigervnc-1.9.0+dfsg/debian/rules	2020-06-16 21:36:31.000000000 +0200
@@ -25,6 +25,7 @@
 
 include /usr/share/cdbs/1/rules/debhelper.mk
 include /usr/share/cdbs/1/class/cmake.mk
+include /usr/share/dpkg/architecture.mk
 
 # Do our complex patch dance first! After that quilt patch system can proceed!
 clean:: unpatch
@@ -192,7 +193,7 @@
 #-include /usr/share/xserver-xorg/configure_flags.mk
 #xserver_confflags := $(shell echo '$(xserver_confflags)' | sed 's/--with-builderstring="[^"]*"//')
 
-XORG_DEBIAN_CONFIGURE_FLAGS = \
+XORG_DEBIAN_CONFIGURE_FLAGS := \
 	$(filter-out \
 		--prefix=% \
 		--mandir=% \
@@ -214,6 +215,14 @@
 	    , $(xserver_confflags) \
 	)
 
+# Don't use libunwind for armel, armhf, and arm64 as this library is buggy
+# (bug #923962) on those architectures.
+ifneq (,$(filter $(DEB_HOST_ARCH), armel armhf arm64))
+	DEB_CONFIGURE_EXTRA_FLAGS += --disable-libunwind
+	XORG_DEBIAN_CONFIGURE_FLAGS := \
+	    $(filter-out --enable-libunwind, $(XORG_DEBIAN_CONFIGURE_FLAGS))
+endif
+
 # Next step is run configure script. It is very difficult use correct parameters.
 # You should use same parameters as used in your distribution X server and add
 # --disable-xvfb --disable-xnest --disable-xorg