initial buildroot for linux 5.15

package/libiconv/Config.in

@@ -0,0 +1,29 @@
+config BR2_PACKAGE_LIBICONV
+	bool "libiconv"
+	depends on !BR2_ENABLE_LOCALE
+	help
+	  unicode conversion library
+
+	  http://ftp.gnu.org/pub/gnu/libiconv
+
+if BR2_PACKAGE_LIBICONV
+
+config BR2_PACKAGE_LIBICONV_EXTRA_ENCODINGS
+	bool "extra encodings"
+	help
+	  Provide support for a few extra encodings:
+
+	  European languages
+	    CP{437,737,775,852,853,855,857,858,860,861,863,865,869,1125}
+	  Semitic languages
+	    CP864
+	  Japanese
+	    EUC-JISX0213, Shift_JISX0213, ISO-2022-JP-3
+	  Chinese
+	    BIG5-2003 (experimental)
+	  Turkmen
+	    TDS565
+	  Platform specifics
+	    ATARIST, RISCOS-LATIN1
+
+endif

package/libiconv/libiconv.hash

@@ -0,0 +1,6 @@
+# Locally calculated after checking pgp signature
+sha256	ccf536620a45458d26ba83887a983b96827001e92a13847b45e4925cc8913178	libiconv-1.15.tar.gz
+
+# Hash for license files:
+sha256	8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903	COPYING
+sha256	56bdea73b6145ef6ac5259b3da390b981d840c24cb03b8e1cbc678de7ecfa18d	COPYING.LIB

package/libiconv/libiconv.mk

@@ -0,0 +1,32 @@
+################################################################################
+#
+# libiconv
+#
+################################################################################
+
+LIBICONV_VERSION = 1.15
+LIBICONV_SITE = $(BR2_GNU_MIRROR)/libiconv
+LIBICONV_INSTALL_STAGING = YES
+LIBICONV_LICENSE = GPL-3.0+ (iconv program), LGPL-2.0+ (library)
+LIBICONV_LICENSE_FILES = COPYING COPYING.LIB
+
+ifeq ($(BR2_PACKAGE_LIBICONV_EXTRA_ENCODINGS),y)
+LIBICONV_CONF_OPTS = --enable-extra-encodings
+endif
+
+# Don't build the preloadable library, as we don't need it (it's only
+# for LD_PRELOAD to replace glibc's iconv, but we never build libiconv
+# when glibc is used). And it causes problems for static only builds.
+define LIBICONV_DISABLE_PRELOAD
+	$(SED) '/preload/d' $(@D)/Makefile.in
+endef
+LIBICONV_PRE_CONFIGURE_HOOKS += LIBICONV_DISABLE_PRELOAD
+
+$(eval $(autotools-package))
+
+# Configurations where the toolchain supports locales and the libiconv
+# package is enabled are incorrect, because the toolchain already
+# provides libiconv functionality, and having both confuses packages.
+ifeq ($(BR2_PACKAGE_LIBICONV)$(BR2_ENABLE_LOCALE),yy)
+$(error Libiconv should never be enabled when the toolchain supports locales. Report this failure to Buildroot developers)
+endif