packages/x86_64: enable experimental -k option

* debian/control (Build-Depends) [amd64]: Add libunwind-dev.
* strace.spec (BuildRequires) [x86_64]: Add libunwind-devel.

debian/control

@@ -2,7 +2,7 @@ Source: strace
 Maintainer: Steve McIntyre <93sam@debian.org>
 Section: utils
 Priority: optional
-Build-Depends: libc6-dev (>= 2.2.2) [!alpha !ia64], libc6.1-dev (>= 2.2.2) [alpha ia64], gcc-multilib [i386 powerpc s390 sparc], debhelper (>= 7.0.0), gawk
+Build-Depends: libc6-dev (>= 2.2.2) [!alpha !ia64], libc6.1-dev (>= 2.2.2) [alpha ia64], gcc-multilib [i386 powerpc s390 sparc], debhelper (>= 7.0.0), gawk, libunwind-dev [amd64]
 Standards-Version: 3.9.6
 Homepage: http://sourceforge.net/projects/strace/
 

strace.spec

@@ -1,12 +1,16 @@
 Summary: Tracks and displays system calls associated with a running process
 Name: strace
 Version: 4.11
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: BSD
 Group: Development/Debuggers
 URL: http://sourceforge.net/projects/strace/
 Source: http://downloads.sourceforge.net/strace/%{name}-%{version}.tar.xz
 BuildRequires: libacl-devel, time
+%ifarch x86_64
+# for experimental -k option
+BuildRequires: libunwind-devel
+%endif
 %define strace64_arches ppc64 sparc64
 
 %description
@@ -77,6 +81,9 @@ make -k check VERBOSE=1
 %endif
 
 %changelog
+* Wed Dec 23 2015 Dmitry V. Levin <ldv@altlinux.org> - 4.11-2
+- Enabled experimental -k option on x86_64 (#1170296).
+
 * Mon Dec 21 2015 Dmitry V. Levin <ldv@altlinux.org> - 4.11-1
 - New upstream release:
   + print nanoseconds along with seconds in stat family syscalls (#1251176).