package/libsigrok: blacklist CS powerpc toolchains

Even though BR2_PACKAGE_LIBSIGROKCXX is selected, the C++
binding is disabled due to lack of C++11 support in the toolchain.

Configure output:
Enabled language bindings:
 - C++............................. no (C++11 compiler required)

So disable libsigrok C++ binding and pulseview for CS powerpc toolchains.

Fixes:
http://autobuild.buildroot.net/results/737/737453011ac0d13ab197258171ffa0f81bc4c368/

[Thomas: use 'depends on !foo && !bar' instead of 'depends on !(foo ||
bar)', seems it looks more logical in this situation.]

Signed-off-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libsigrok/Config.in

@@ -22,12 +22,17 @@ config BR2_PACKAGE_LIBSIGROKCXX
 	bool "build C++ bindings"
 	select BR2_PACKAGE_GLIBMM
 	depends on BR2_INSTALL_LIBSTDCPP
+	# CS powerpc g++ are too old. libsigrokcxx needs C++11
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103 && \
+		!BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009
 	help
 	  Build libsigrok C++ bindings as well.
 
 comment "C++ bindings need a toolchain w/ C++"
 	depends on BR2_PACKAGE_LIBSIGROK
 	depends on !BR2_INSTALL_LIBSTDCPP
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103 && \
+		!BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009
 
 endif
 

package/pulseview/Config.in

@@ -16,6 +16,9 @@ config BR2_PACKAGE_PULSEVIEW
 	depends on BR2_USE_MMU
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_PACKAGE_BOOST_ARCH_SUPPORTS
+	# libsigrok
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103 && \
+		!BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009
 	help
 	  PulseView is a Qt based logic analyzer, oscilloscope
 	  and MSO GUI for sigrok.
@@ -27,3 +30,5 @@ comment "pulseview needs a toolchain w/ wchar, threads, C++"
 	depends on BR2_PACKAGE_QT5
 	depends on BR2_PACKAGE_BOOST_ARCH_SUPPORTS
 	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || !BR2_INSTALL_LIBSTDCPP
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103 && \
+		!BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009