initial buildroot for linux 5.15

package/libgsasl/Config.in

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+config BR2_PACKAGE_LIBGSASL
+	bool "libgsasl"
+	depends on BR2_USE_WCHAR
+	help
+	  Simple Authentication and Security Layer framework Library.
+	  GNU SASL is an implementation of the Simple Authentication and
+	  Security Layer framework and a few common SASL mechanisms.
+	  SASL is used by network servers (e.g., IMAP, SMTP) to request
+	  authentication from clients, and in clients to authenticate
+	  against servers.
+
+	  http://www.gnu.org/software/gsasl
+
+comment "libgsasl needs a toolchain w/ wchar"
+	depends on !BR2_USE_WCHAR

package/libgsasl/libgsasl.hash

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+# From https://lists.gnu.org/archive/html/help-gsasl/2021-01/msg00007.html
+sha1  a16ff428bbf28fcfa681c7edd2cd2bb087bcc4e7  libgsasl-1.10.0.tar.gz
+sha224  20b37757fccb6a0f8b4c6fcb28f51a3b4b8a4b1fdb4736da07707a0b  libgsasl-1.10.0.tar.gz
+
+# Locally calculated after checking pgp signature
+sha256  f1b553384dedbd87478449775546a358d6f5140c15cccc8fb574136fdc77329f  libgsasl-1.10.0.tar.gz
+
+# Hash for license files:
+sha256  26e99818ca6ce79d8b2c461fabc72dc6e03483e6b0fd9692dcb07ab1b09bbac7  README
+sha256  dc626520dcd53a22f727af3ee42c770e56c97a64fe3adb063799d8ab032fe551  COPYING.LIB
+sha256  8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903  COPYING

package/libgsasl/libgsasl.mk

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+################################################################################
+#
+# libgsasl
+#
+################################################################################
+
+LIBGSASL_VERSION = 1.10.0
+LIBGSASL_SITE = $(BR2_GNU_MIRROR)/gsasl
+LIBGSASL_LICENSE = LGPL-2.1+ (library), GPL-3.0+ (programs)
+LIBGSASL_LICENSE_FILES = README COPYING.LIB COPYING
+LIBGSASL_INSTALL_STAGING = YES
+
+ifeq ($(BR2_PACKAGE_LIBGCRYPT),y)
+LIBGSASL_CONF_OPTS = --with-libgcrypt-prefix=$(STAGING_DIR)/usr
+LIBGSASL_DEPENDENCIES += libgcrypt
+else
+LIBGSASL_CONF_OPTS = --without-libgcrypt
+endif
+
+ifeq ($(BR2_PACKAGE_LIBIDN),y)
+LIBGSASL_CONF_OPTS += --with-libidn-prefix=$(STAGING_DIR)/usr
+LIBGSASL_DEPENDENCIES += libidn
+else
+LIBGSASL_CONF_OPTS += --without-stringprep
+endif
+
+$(eval $(autotools-package))