initial buildroot for linux 5.15

package/pistache/Config.in

@@ -0,0 +1,20 @@
+config BR2_PACKAGE_PISTACHE
+	bool "pistache"
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++14
+	depends on BR2_USE_WCHAR
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on !BR2_TOOLCHAIN_USES_UCLIBC
+	help
+	  Pistache is a modern and elegant HTTP and REST framework
+	  for C++. It is entirely written in pure C++14 and provides
+	  a clear and pleasant API.
+
+	  https://github.com/oktal/pistache
+
+comment "pistache needs a glibc toolchain w/ C++, gcc >= 4.9, threads, wchar"
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+	BR2_TOOLCHAIN_USES_UCLIBC || \
+	!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
+	!BR2_TOOLCHAIN_HAS_THREADS || \
+	!BR2_USE_WCHAR