initial buildroot for linux 5.15

package/libnspr/Config.in

@@ -0,0 +1,21 @@
+config BR2_PACKAGE_LIBNSPR_ARCH_SUPPORT
+	def_bool y
+
+if BR2_PACKAGE_LIBNSPR_ARCH_SUPPORT
+
+config BR2_PACKAGE_LIBNSPR
+	bool "libnspr"
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_STATIC_LIBS
+	help
+	  NSPR is the Netscape Portable Runtime library which provides
+	  a platform-neutral API for system level and libc like
+	  functions. The library is used by the Mozilla project as well
+	  as others.
+
+	  http://www.mozilla.org/projects/nspr/
+
+comment "libnspr needs a toolchain w/ threads, dynamic library"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS
+
+endif

package/libnspr/libnspr.hash

@@ -0,0 +1,4 @@
+# From https://ftp.mozilla.org/pub/nspr/releases/v4.32/src/SHA256SUMS
+sha256  bb6bf4f534b9559cf123dcdc6f9cd8167de950314a90a88b2a329c16836e7f6c  nspr-4.32.tar.gz
+# Locally calculated
+sha256  fab3dd6bdab226f1c08630b1dd917e11fcb4ec5e1e020e2c16f83a0a13863e85  nspr/LICENSE

package/libnspr/libnspr.mk

@@ -0,0 +1,57 @@
+################################################################################
+#
+# libnspr
+#
+################################################################################
+
+LIBNSPR_VERSION = 4.32
+LIBNSPR_SOURCE = nspr-$(LIBNSPR_VERSION).tar.gz
+LIBNSPR_SITE = https://ftp.mozilla.org/pub/mozilla.org/nspr/releases/v$(LIBNSPR_VERSION)/src
+LIBNSPR_SUBDIR = nspr
+LIBNSPR_INSTALL_STAGING = YES
+LIBNSPR_CONFIG_SCRIPTS = nspr-config
+LIBNSPR_LICENSE = MPL-2.0
+LIBNSPR_LICENSE_FILES = nspr/LICENSE
+LIBNSPR_CPE_ID_VENDOR = mozilla
+LIBNSPR_CPE_ID_PRODUCT = netscape_portable_runtime
+
+# Set the host CFLAGS and LDFLAGS so NSPR does not guess wrongly
+LIBNSPR_CONF_ENV = \
+	HOST_CFLAGS="-g -O2" \
+	HOST_LDFLAGS="-lc"
+# NSPR mixes up --build and --host
+LIBNSPR_CONF_OPTS = --host=$(GNU_HOST_NAME)
+LIBNSPR_CONF_OPTS += --$(if $(BR2_ARCH_IS_64),en,dis)able-64bit
+
+# ./nspr/pr/include/md/_linux.h tests only __GLIBC__ version to detect
+# c-library features, list musl features here for now (taken from
+# Alpine Linux).
+ifeq ($(BR2_TOOLCHAIN_USES_MUSL),y)
+LIBNSPR_CFLAGS += \
+	-D_PR_POLL_AVAILABLE \
+	-D_PR_HAVE_OFF64_T \
+	-D_PR_INET6 \
+	-D_PR_HAVE_INET_NTOP \
+	-D_PR_HAVE_GETHOSTBYNAME2 \
+	-D_PR_HAVE_GETADDRINFO \
+	-D_PR_INET6_PROBE
+endif
+
+LIBNSPR_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) $(LIBNSPR_CFLAGS)"
+
+ifeq ($(BR2_STATIC_LIBS),y)
+LIBNSPR_MAKE_OPTS = SHARED_LIBRARY=
+LIBNSPR_INSTALL_TARGET_OPTS = DESTDIR=$(TARGET_DIR) SHARED_LIBRARY= install
+LIBNSPR_INSTALL_STAGING_OPTS = DESTDIR=$(STAGING_DIR) SHARED_LIBRARY= install
+endif
+
+ifeq ($(BR2_SHARED_LIBS),y)
+LIBNSPR_MAKE_OPTS = LIBRARY=
+LIBNSPR_INSTALL_TARGET_OPTS = DESTDIR=$(TARGET_DIR) LIBRARY= install
+LIBNSPR_INSTALL_STAGING_OPTS = DESTDIR=$(STAGING_DIR) LIBRARY= install
+endif
+
+HOST_LIBNSPR_CONF_OPTS += --$(if $(filter %64,$(HOSTARCH)),en,dis)able-64bit
+
+$(eval $(autotools-package))
+$(eval $(host-autotools-package))