initial buildroot for linux 5.15

package/libsigrok/Config.in

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+config BR2_PACKAGE_LIBSIGROK
+	bool "libsigrok"
+	# libglib2
+	depends on BR2_USE_WCHAR
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_USE_MMU
+	depends on BR2_ENABLE_LOCALE
+	depends on !BR2_STATIC_LIBS # libzip
+	# std=c11
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
+	select BR2_PACKAGE_LIBZIP
+	select BR2_PACKAGE_LIBGLIB2
+	help
+	  Libsigrok is a shared library written in C, which provides
+	  the basic hardware access drivers for logic analyzers and
+	  other supported devices, as well as input/output file format
+	  support.
+
+	  This library is a part of the sigrok software suite.
+
+	  http://sigrok.org/wiki/Libsigrok
+
+if BR2_PACKAGE_LIBSIGROK
+
+config BR2_PACKAGE_LIBSIGROKCXX
+	bool "build C++ bindings"
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # glibmm
+	depends on BR2_HOST_GCC_AT_LEAST_4_9 # host-doxygen
+	select BR2_PACKAGE_GLIBMM
+	select BR2_PACKAGE_HOST_DOXYGEN
+	help
+	  Build libsigrok C++ bindings as well.
+
+comment "C++ bindings need a toolchain w/ C++, gcc >= 4.9, host gcc >= 4.9"
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
+		!BR2_HOST_GCC_AT_LEAST_4_9
+
+endif
+
+comment "libsigrok needs a toolchain w/ wchar, locale, threads, dynamic library, gcc >= 4.7"
+	depends on BR2_USE_MMU
+	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 || BR2_STATIC_LIBS \
+		|| !BR2_ENABLE_LOCALE

package/libsigrok/libsigrok.hash

@@ -0,0 +1,3 @@
+# Locally computed
+sha256	4d341f90b6220d3e8cb251dacf726c41165285612248f2c52d15df4590a1ce3c	libsigrok-0.5.2.tar.gz
+sha256	8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903	COPYING

package/libsigrok/libsigrok.mk

@@ -0,0 +1,65 @@
+################################################################################
+#
+# libsigrok
+#
+################################################################################
+
+LIBSIGROK_VERSION = 0.5.2
+LIBSIGROK_SITE = http://sigrok.org/download/source/libsigrok
+LIBSIGROK_LICENSE = GPL-3.0+
+LIBSIGROK_LICENSE_FILES = COPYING
+LIBSIGROK_INSTALL_STAGING = YES
+LIBSIGROK_DEPENDENCIES = libglib2 libzip host-pkgconf
+LIBSIGROK_CONF_OPTS = --disable-java --disable-python
+
+ifeq ($(BR2_PACKAGE_BLUEZ5_UTILS),y)
+LIBSIGROK_CONF_OPTS += --with-libbluez
+LIBSIGROK_DEPENDENCIES += bluez5_utils
+else
+LIBSIGROK_CONF_OPTS += --without-libbluez
+endif
+
+ifeq ($(BR2_PACKAGE_HIDAPI),y)
+LIBSIGROK_CONF_OPTS += --with-libhidapi
+LIBSIGROK_DEPENDENCIES += hidapi
+else
+LIBSIGROK_CONF_OPTS += --without-libhidapi
+endif
+
+ifeq ($(BR2_PACKAGE_LIBSERIALPORT),y)
+LIBSIGROK_CONF_OPTS += --with-libserialport
+LIBSIGROK_DEPENDENCIES += libserialport
+else
+LIBSIGROK_CONF_OPTS += --without-libserialport
+endif
+
+ifeq ($(BR2_PACKAGE_LIBFTDI1),y)
+LIBSIGROK_CONF_OPTS += --with-libftdi
+LIBSIGROK_DEPENDENCIES += libftdi1
+else
+LIBSIGROK_CONF_OPTS += --without-libftdi
+endif
+
+ifeq ($(BR2_PACKAGE_LIBUSB),y)
+LIBSIGROK_CONF_OPTS += --with-libusb
+LIBSIGROK_DEPENDENCIES += libusb
+else
+LIBSIGROK_CONF_OPTS += --without-libusb
+endif
+
+ifeq ($(BR2_PACKAGE_GLIBMM),y)
+LIBSIGROK_DEPENDENCIES += glibmm
+endif
+
+ifeq ($(BR2_PACKAGE_LIBSIGROKCXX),y)
+LIBSIGROK_CONF_OPTS += --enable-cxx
+# host-doxygen is used by C++ bindings to parse libsigrok symbols
+LIBSIGROK_DEPENDENCIES += \
+	glibmm \
+	host-doxygen \
+	$(if $(BR2_PACKAGE_PYTHON3),host-python3,host-python)
+else
+LIBSIGROK_CONF_OPTS += --disable-cxx
+endif
+
+$(eval $(autotools-package))