Make C++11 support optional and explicitely check for gnu++11. Stop the build only if no C++11 support has been found and WebRTC support has been resquested. Fixes: http://autobuild.buildroot.net/results/d89/d897a94a8b6a52eba03d04c24536f554a7643000 Signed-off-by: Romain Naour <romain.naour at gmail.com> --- configure.ac | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 7b484a9..7fbecab 100644 --- a/configure.ac +++ b/configure.ac @@ -84,7 +84,7 @@ AM_PROG_CC_C_O # Only required if you want the WebRTC canceller -- no runtime dep on # libstdc++ otherwise AC_PROG_CXX -AX_CXX_COMPILE_STDCXX_11 +AX_CXX_COMPILE_STDCXX_11([ext],[optional]) AC_PROG_GCC_TRADITIONAL AC_USE_SYSTEM_EXTENSIONS @@ -1410,6 +1410,9 @@ fi AC_ARG_ENABLE([webrtc-aec], AS_HELP_STRING([--enable-webrtc-aec], [Enable the optional WebRTC-based echo canceller])) +AS_IF([test "x$enable_webrtc_aec" = "xyes" && test "$HAVE_CXX11" = "0"], + [AC_MSG_ERROR([*** webrtc-audio-processing needs C++11 support])]) + AS_IF([test "x$enable_webrtc_aec" != "xno"], [PKG_CHECK_MODULES(WEBRTC, [ webrtc-audio-processing >= 0.2 ], [HAVE_WEBRTC=1], [HAVE_WEBRTC=0])], [HAVE_WEBRTC=0]) -- 2.5.5
