initial buildroot for linux 5.15

package/re2/Config.in

@@ -0,0 +1,17 @@
+config BR2_PACKAGE_RE2
+	bool "re2"
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 # needs C++11
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	help
+	  RE2 is a fast, safe, thread-friendly alternative
+	  to backtracking regular expression engines like
+	  those used in PCRE, Perl, and Python.
+	  It is a C++ library.
+
+	  https://github.com/google/re2
+
+comment "re2 needs a toolchain w/ C++, threads, gcc >= 4.8"
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+		!BR2_TOOLCHAIN_HAS_THREADS || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_8