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configure.ac: Fix broken build for Qt backend

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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>
This commit is contained in:
Bryce Harrington 2014-07-08 15:53:41 -07:00 • committed by Bryce Harrington
parent 42be3f754c
commit 4efcd33eb5
1 changed files with 1 additions and 0 deletions
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configure.ac
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@ -190,6 +190,7 @@ CAIRO_ENABLE_SURFACE_BACKEND(qt, Qt, no, [
[qt_REQUIRES=""
use_qt="no (requires Qt4 development libraries)"
])
qt_NONPKGCONFIG_LIBS="-lstdc++"
])
dnl ===========================================================================