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package/pulseaudio: allow to build without C++11 support

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C++11 support is only required for WebRTC optional support but
pulseaudio can still be built with toolchains based on gcc 4.7 or older
witch doesn't have it.

Add a patch to make C++11 support optional and explicitely check for
gnu++11. Also 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@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Romain Naour 2016-07-04 01:35:04 +02:00 committed by Thomas Petazzoni
parent ffafb77da2
commit 5b153d059b
2 changed files with 44 additions and 0 deletions
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41
package/pulseaudio/0002-webrtc-C-11-is-only-required-for-WebRTC-support.patch Normal file
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@ -0,0 +1,41 @@
From 7af6cbe74d48a9853b60b029d4ce38a963386138 Mon Sep 17 00:00:00 2001
From: Romain Naour <romain.naour@gmail.com>
Date: Sun, 3 Jul 2016 20:19:48 +0200
Subject: [PATCH] webrtc: C++11 is only required for WebRTC support
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.
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
configure.ac | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 4edc8e0..fea93a9 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
@@ -1414,6 +1414,9 @@ 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

3
package/pulseaudio/pulseaudio.mk
View File

@ -21,6 +21,9 @@ PULSEAUDIO_CONF_OPTS = \
PULSE_AUDIO_CONF_ENV += \
ac_cv_header_atomic_ops_h=no
# 0002-webrtc-C-11-is-only-required-for-WebRTC-support.patch
PULSEAUDIO_AUTORECONF = YES
PULSEAUDIO_DEPENDENCIES = \
host-pkgconf libtool json-c libsndfile speex host-intltool \
$(if $(BR2_PACKAGE_LIBSAMPLERATE),libsamplerate) \