xcb: make use of _cairo_surface_is_xcb to check for surface type

Introduced a new inline function _cairo_surface_is_xcb() as similar to
_cairo_surface_is_image() and used the same to check for xcb surface
type

Signed-off-by: Ravi Nanjundappa <nravi.n@samsung.com>
skia: update the source to build with the latest skia

This fixes several build related issues for the skia backend
which is introduced due to skia source up-gradation.

Signed-off-by: Ravi Nanjundappa <nravi.n@samsung.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
Reviewed-by: Bryce Harrington <b.harrington@samsung.com>
.gitignore: Ignore two generated files in build/

Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
clang-cl: Use size of the pointer explicitly

This works around http://llvm.org/PR20216.
.gitignore: Ignore the generated profile data files from callgrind tool in test/

Signed-off-by: Ravi Nanjundappa <nravi.n@samsung.com>
Reviewed-by: Bryce Harrington <b.harrington@samsung.com>
skia : Add Debug support for skia backend

Enable the DEBUG support for skia backend to provide more
descriptive information on the unexpected operational behaviours.

Signed-off-by: Ravi Nanjundappa <nravi.n@samsung.com>
Reviewed-by: Bryce Harrington <b.harrington@samsung.com>
chmod a+x cairo-trace
[trace] Don't print FC_CHARSET, FC_LANG, and FC_CAPABILITY

There are many more that can go, but these take the most bytes.
FC_CHARSET needs to go specially because I recently changed
its format in fontconfig.  Ouch!
configure.ac: Quell warnings about AM_PROG_AR when using automake 1.12

Without this, autogen.sh issues warnings like:

  /usr/share/automake-1.14/am/ltlibrary.am: warning: 'libcairoboilerplate_cxx.la': linking libtool libraries using a non-POSIX
  /usr/share/automake-1.14/am/ltlibrary.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
  boilerplate/Makefile.am:18:   while processing Libtool library 'libcairoboilerplate_cxx.la'

AM_PROG_AR was introduced in automake 1.11.2.  As per the docs for
AM_PROG_AR, it is supposed to be included when the archiver ('ar') is
used, but prior to automake 1.12 the warning was only shown iff
-Wextra-portability was specified.  automake 1.12 introduced a change
that includes -Wextra-portability when -Wall is specified.

For further discussion of the issue, see:

  http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11401
  http://lists.gnu.org/archive/html/automake/2012-05/msg00014.html

Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
configure.ac: Add a --disable-lto configure option

Link-Time Optimization seems to be stable enough with gcc 4.8 and 4.9,
but has proven to be an issue in the past for many cairo users (webkit,
efl, ubuntu, opensuse, gentoo, arch...) who carry patches to disable it.

Gentoo's patch[1] adds a --disable-lto option to leave it enabled by
default but give users the ability to work around lto related build
problems (c.f. fdo #77060).  Patch appears to have been authored by
Alexandre Rostovtsev[2].

1: sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/x11-libs/cairo/files/cairo-1.12.16-lto-optional.patch
2: https://bugs.gentoo.org/show_bug.cgi?id=509552

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=60852
Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
configure.ac: Fix broken build for Qt backend

When --enable-qt is specified, the build will break due to missing
libstdc++:

  CCLD     cairo-test-suite
/usr/bin/ld: ../boilerplate/.libs/libcairoboilerplate.a(libcairoboilerplate_cxx_la-cairo-boilerplate-qt.o): undefined reference to symbol '__gxx_personality_v0@@CXXABI_1.3'
//usr/lib/x86_64-linux-gnu/libstdc++.so.6: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

When using g++ to compile and link code, g++ automatically links
libstdc++.  However, in cairo we're using g++ only to compile, so need
to explicitly link against libstdc++ for backends that need iostream,
stl, or other stdc++ features.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=59038
Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
[cairo-trace] Work around fontconfig :charset= parse format change

As dicussed on the mailing list.
Merge branch 'master' of git://anongit.freedesktop.org/git/cairo