Bug#764193: webkit2gtk: FTBFS on mips, mipsel, powerpc: missing reference to __atomic_fetch_add_8

[Hector Oron]

Source: webkit2gtk
Version: 2.6.0+dfsg1-2
Severity: serious
Justification: FTBFS



Hello,

  Your package fails to build from source on Debian autobuilder network.

  Please check your package build logs at:
  <https://buildd.debian.org/status/package.php?p=webkit2gtk&suite=sid>

  There seems to be expecting an undefined reference on some architectures:

CMakeFiles/WebKit2.dir/UIProcess/StatisticsRequest.cpp.o: In function `WebKit::StatisticsRequest::addOutstandingRequest()':
StatisticsRequest.cpp:(.text+0x50c): undefined reference to `__atomic_fetch_add_8'
collect2: error: ld returned 1 exit status
make[3]: *** [lib/libwebkit2gtk-4.0.so.37.2.1] Error 1
Source/WebKit2/CMakeFiles/WebKit2.dir/build.make:16084: recipe for target 'lib/libwebkit2gtk-4.0.so.37.2.1' failed
make[3]: Leaving directory '/«BUILDDIR»/webkit2gtk-2.6.0+dfsg1/obj-mipsel-linux-gnu'
make[2]: *** [Source/WebKit2/CMakeFiles/WebKit2.dir/all] Error 2
CMakeFiles/Makefile2:886: recipe for target 'Source/WebKit2/CMakeFiles/WebKit2.dir/all' failed
make[2]: Leaving directory '/«BUILDDIR»/webkit2gtk-2.6.0+dfsg1/obj-mipsel-linux-gnu'
make[1]: *** [all] Error 2


  Full log at (a random one):
    https://buildd.debian.org/status/fetch.php?pkg=webkit2gtk&arch=powerpc&ver=2.6.0%2Bdfsg1-2&stamp=1412452229

Best regards


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (900, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Foreign Architectures: armhf

Kernel: Linux 3.14-2-686-pae (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash