create rootf's & SDK from 2018.02.9 buildroot (#10)

---------

Co-authored-by: tiopex <tiopxyz@gmail.com>
Co-authored-by: tiopex <67048640+tiopex@users.noreply.github.com>

support/dependencies/check-host-bison-flex.mk

@@ -1,14 +0,0 @@
-# If the system lacks bison or flex, add
-# dependencies to suitable host packages
-#
-# BR2_{BISON,FLES}_HOST_DEPENDENCY should only be used to build code
-# that runs on host, e.g. Kconfig. To build code for target use plain
-# host-{bison,flex}.
-
-ifeq ($(shell which bison 2>/dev/null),)
-BR2_BISON_HOST_DEPENDENCY = host-bison
-endif
-
-ifeq ($(shell which flex 2>/dev/null),)
-BR2_FLEX_HOST_DEPENDENCY = host-flex
-endif

support/dependencies/check-host-cmake.mk

@@ -1,9 +1,14 @@
-# Set this to either 3.16 or higher, depending on the highest minimum
+# Versions before 3.0 are affected by the bug described in
+# https://git.busybox.net/buildroot/commit/?id=ef2c1970e4bff3be3992014070392b0e6bc28bd2
+# and fixed in upstream CMake in version 3.0:
+# https://cmake.org/gitweb?p=cmake.git;h=e8b8b37ef6fef094940d3384df5a1d421b9fa568
+#
+# Set this to either 3.0 or higher, depending on the highest minimum
 # version required by any of the packages bundled in Buildroot. If a
 # package is bumped or a new one added, and it requires a higher
-# version, our cmake infra will catch it and build its own.
+# version, our cmake infra will catch it and whine.
 #
-BR2_CMAKE_VERSION_MIN = 3.16
+BR2_CMAKE_VERSION_MIN = 3.1
 
 BR2_CMAKE_CANDIDATES ?= cmake cmake3
 BR2_CMAKE ?= $(call suitable-host-package,cmake,\

support/dependencies/check-host-coreutils.mk

@@ -1,6 +0,0 @@
-# Check whether the host's coreutils are up to date enough
-# to provide 'ln --relative' and 'realpath'.
-
-ifeq (,$(call suitable-host-package,coreutils))
-BR2_COREUTILS_HOST_DEPENDENCY = host-coreutils
-endif

support/dependencies/check-host-coreutils.sh

@@ -1,12 +0,0 @@
-#!/bin/sh
-
-# Exit on the first error
-set -e
-
-# Does ln supports the --relative/-r option?
-ln --relative --help >/dev/null 2>&1
-
-# Does realpath exist?
-realpath --help >/dev/null 2>&1
-
-echo OK

support/dependencies/check-host-gzip.mk

@@ -1,3 +0,0 @@
-ifeq (,$(call suitable-host-package,gzip))
-BR2_GZIP_HOST_DEPENDENCY = host-gzip
-endif

support/dependencies/check-host-gzip.sh

@@ -1,21 +0,0 @@
-#!/bin/sh
-
-candidate="$1" # ignored
-
-gzip="$(which gzip)"
-if [ ! -x "${gzip}" ]; then
-    # echo nothing: no suitable gzip found
-    exit 1
-fi
-
-# gzip displays its version string on stdout
-# pigz displays its version string on stderr
-version="$("${gzip}" --version 2>&1)"
-case "${version}" in
-  (*pigz*)
-    # echo nothing: no suitable gzip found
-    exit 1
-    ;;
-esac
-
-printf "%s" "${gzip}"

support/dependencies/check-host-lzip.mk

@@ -1,4 +1,5 @@
 ifeq (,$(call suitable-host-package,lzip,$(LZCAT)))
-BR2_LZIP_HOST_DEPENDENCY = host-lzip
+DEPENDENCIES_HOST_PREREQ += host-lzip
+EXTRACTOR_DEPENDENCY_PRECHECKED_EXTENSIONS += .lz
 LZCAT = $(HOST_DIR)/bin/lzip -d -c
 endif

support/dependencies/check-host-make.mk

@@ -1,21 +0,0 @@
-# Since version 2.28, glibc requires GNU Make >= 4.0
-# https://www.sourceware.org/ml/libc-alpha/2018-08/msg00003.html
-#
-# Set this to either 4.0 or higher, depending on the highest minimum
-# version required by any of the packages bundled in Buildroot. If a
-# package is bumped or a new one added, and it requires a higher
-# version, our package infra will catch it and whine.
-#
-BR2_MAKE_VERSION_MIN = 4.0
-
-BR2_MAKE ?= $(call suitable-host-package,make,\
-	$(BR2_MAKE_VERSION_MIN) $(MAKE))
-
-ifeq ($(BR2_MAKE),)
-BR2_MAKE = $(HOST_DIR)/bin/host-make -j$(PARALLEL_JOBS)
-BR2_MAKE1 = $(HOST_DIR)/bin/host-make -j1
-BR2_MAKE_HOST_DEPENDENCY = host-make
-else
-BR2_MAKE = $(MAKE)
-BR2_MAKE1 = $(MAKE1)
-endif

support/dependencies/check-host-make.sh

@@ -1,37 +0,0 @@
-#!/bin/sh
-
-# prevent shift error
-[ $# -lt 2 ] && exit 1
-
-major_min="${1%.*}"
-minor_min="${1#*.}"
-
-shift
-
-# The host make program is already checked by dependencies.sh but we
-# want to check the version number even if Buildroot is able to use
-# GNU make >= 3.81 but some packages may require a more recent version.
-make="$1"
-
-# Output of 'make --version' examples:
-# GNU Make 4.2.1
-# GNU Make 4.0
-# GNU Make 3.81
-version=`$make --version 2>&1 | sed -e 's/^.* \([0-9\.]\)/\1/g' -e 's/[-\
-].*//g' -e '1q'`
-
-major=`echo "$version" | cut -d. -f1`
-minor=`echo "$version" | cut -d. -f2`
-
-if [ $major -lt $major_min ]; then
-	# echo nothing: no suitable make found
-	exit 1
-fi
-
-if [ $major -eq $major_min -a $minor -lt $minor_min ]; then
-	# echo nothing: no suitable make found
-	exit 1
-fi
-
-# valid
-echo $make

support/dependencies/check-host-python3.mk

@@ -1,8 +0,0 @@
-# Since version 2.29, glibc requires python 3.4 or later to build the GNU C Library.
-# https://www.sourceware.org/ml/libc-alpha/2019-01/msg00723.html
-
-BR2_PYTHON3_VERSION_MIN = 3.4
-
-ifeq (,$(call suitable-host-package,python3,$(BR2_PYTHON3_VERSION_MIN) python3 python))
-BR2_PYTHON3_HOST_DEPENDENCY = host-python3
-endif

support/dependencies/check-host-python3.sh

@@ -1,31 +0,0 @@
-#!/bin/sh
-
-# prevent shift error
-[ $# -lt 2 ] && exit 1
-
-version_min="$(echo ${1} | awk '{ split($1, v, "."); print v[1] v[2] }')"
-
-shift
-
-# The host python interpreter is already checked by dependencies.sh but
-# it only check if the version is at least 2.7.
-# We want to check the version number of the python3 interpreter even
-# if Buildroot is able to use any version but some packages may require
-# a more recent version.
-
-for candidate in "${@}" ; do
-	python3=`which $candidate 2>/dev/null`
-	if [ ! -x "$python3" ]; then
-		continue
-	fi
-	version=`$python3 -V 2>&1 | awk '{ split($2, v, "."); print v[1] v[2] }'`
-
-	if [ $version -lt $version_min ]; then
-		# no suitable python3 found
-		continue
-	fi
-
-	# suitable python3 found
-	echo $python3
-	break
-done

support/dependencies/check-host-tar.mk

@@ -1,6 +1,6 @@
 TAR ?= tar
 
 ifeq (,$(call suitable-host-package,tar,$(TAR)))
+DEPENDENCIES_HOST_PREREQ += host-tar
 TAR = $(HOST_DIR)/bin/tar
-BR2_TAR_HOST_DEPENDENCY = host-tar
 endif

support/dependencies/check-host-tar.sh

@@ -20,11 +20,10 @@ major=`echo "$version" | cut -d. -f1`
 minor=`echo "$version" | cut -d. -f2`
 bugfix=`echo "$version" | cut -d. -f3`
 version_bsd=`$tar --version | grep 'bsdtar'`
-
-# BSD tar does not have all the command-line options
-if [ -n "${version_bsd}" ] ; then
-    # echo nothing: no suitable tar found
-    exit 1
+if [ ! -z "${version_bsd}" ] ; then 
+  # mark as invalid version - not all command line options are available
+  major=0
+  minor=0
 fi
 
 # Minimal version = 1.27 (previous versions do not correctly unpack archives
@@ -33,7 +32,14 @@ fi
 major_min=1
 minor_min=27
 
-if [ $major -lt $major_min ]; then
+# Maximal version = 1.29 (1.30 changed --numeric-owner output for
+# filenames > 100 characters). This is really a fix for a bug in
+# earlier tar versions regarding deterministic output so it is
+# unlikely to be reverted in later versions.
+major_max=1
+minor_max=29
+
+if [ $major -lt $major_min -o $major -gt $major_max ]; then
 	# echo nothing: no suitable tar found
 	exit 1
 fi
@@ -43,5 +49,10 @@ if [ $major -eq $major_min -a $minor -lt $minor_min ]; then
 	exit 1
 fi
 
+if [ $major -eq $major_max -a $minor -gt $minor_max ]; then
+	# echo nothing: no suitable tar found
+	exit 1
+fi
+
 # valid
 echo $tar

support/dependencies/check-host-xzcat.mk

@@ -2,6 +2,7 @@
 # If it is not present, build our own host-xzcat
 
 ifeq (,$(call suitable-host-package,xzcat,$(XZCAT)))
-BR2_XZCAT_HOST_DEPENDENCY = host-xz
+DEPENDENCIES_HOST_PREREQ += host-xz
+EXTRACTOR_DEPENDENCY_PRECHECKED_EXTENSIONS += .xz .lzma
 XZCAT = $(HOST_DIR)/bin/xzcat
 endif

support/dependencies/dependencies.mk

@@ -5,31 +5,35 @@
 #
 ################################################################################
 
-ifeq ($(BR2_FORCE_HOST_BUILD),y)
-# ignore all available host packages
-define suitable-host-package
-endef
-else
 # suitable-host-pkg: calls check-host-$(1).sh shell script. Parameter (2)
 # can be the candidate to be checked. If not present, the check-host-$(1).sh
 # script should use 'which' to find a candidate. The script should return
 # the path to the suitable host tool, or nothing if no suitable tool was found.
 define suitable-host-package
-$(if $(1),$(shell support/dependencies/check-host-$(1).sh $(2)))
+$(shell support/dependencies/check-host-$(1).sh $(2))
 endef
-endif
 # host utilities needs host-tar to extract the source code tarballs, so
 # ensure check-host-tar.mk is included before the rest
 include support/dependencies/check-host-tar.mk
 -include $(sort $(filter-out %-tar.mk,$(wildcard support/dependencies/check-host-*.mk)))
 
-dependencies:
+ifeq ($(BR2_CCACHE),y)
+DEPENDENCIES_HOST_PREREQ += host-ccache
+endif
+
+core-dependencies:
 	@MAKE="$(MAKE)" DL_TOOLS="$(sort $(DL_TOOLS_DEPENDENCIES))" \
 		$(TOPDIR)/support/dependencies/dependencies.sh
 
+$(DEPENDENCIES_HOST_PREREQ): HOSTCC=$(HOSTCC_NOCCACHE)
+$(DEPENDENCIES_HOST_PREREQ): HOSTCXX=$(HOSTCXX_NOCCACHE)
+$(DEPENDENCIES_HOST_PREREQ): core-dependencies
+
+dependencies: core-dependencies $(DEPENDENCIES_HOST_PREREQ)
+
 ################################################################################
 #
 # Toplevel Makefile options
 #
 ################################################################################
-.PHONY: dependencies
+.PHONY: dependencies core-dependencies

support/dependencies/dependencies.sh

@@ -2,9 +2,6 @@
 # vi: set sw=4 ts=4:
 
 export LC_ALL=C
-TAB="$(printf '\t')"
-NL="
-"
 
 # Verify that grep works
 echo "WORKS" | grep "WORKS" >/dev/null 2>&1
@@ -38,9 +35,10 @@ case ":${PATH:-unset}:" in
 	echo "PATH environment variable. This doesn't work."
 	exit 1
 	;;
-(*" "*|*"${TAB}"*|*"${NL}"*)
-	printf "\n"
-	printf "Your PATH contains spaces, TABs, and/or newline (\\\n) characters.\n"
+(*"
+"*)	printf "\n"
+	# Break the '\n' sequence, or a \n is printed (which is not what we want).
+	printf "Your PATH contains a newline (%sn) character.\n" "\\"
 	printf "This doesn't work. Fix you PATH.\n"
 	exit 1
 	;;
@@ -115,9 +113,9 @@ if [ -z "$COMPILER_VERSION" ] ; then
 fi;
 COMPILER_MAJOR=$(echo $COMPILER_VERSION | sed -e "s/\..*//g")
 COMPILER_MINOR=$(echo $COMPILER_VERSION | sed -e "s/^$COMPILER_MAJOR\.//g" -e "s/\..*//g")
-if [ $COMPILER_MAJOR -lt 4 -o $COMPILER_MAJOR -eq 4 -a $COMPILER_MINOR -lt 8 ] ; then
+if [ $COMPILER_MAJOR -lt 3 -o $COMPILER_MAJOR -eq 2 -a $COMPILER_MINOR -lt 95 ] ; then
 	echo
-	echo "You have gcc '$COMPILER_VERSION' installed.  gcc >= 4.8 is required"
+	echo "You have gcc '$COMPILER_VERSION' installed.  gcc >= 2.95 is required"
 	exit 1;
 fi;
 
@@ -143,9 +141,9 @@ fi
 if [ -n "$CXXCOMPILER_VERSION" ] ; then
 	CXXCOMPILER_MAJOR=$(echo $CXXCOMPILER_VERSION | sed -e "s/\..*//g")
 	CXXCOMPILER_MINOR=$(echo $CXXCOMPILER_VERSION | sed -e "s/^$CXXCOMPILER_MAJOR\.//g" -e "s/\..*//g")
-	if [ $CXXCOMPILER_MAJOR -lt 4 -o $CXXCOMPILER_MAJOR -eq 4 -a $CXXCOMPILER_MINOR -lt 8 ] ; then
+	if [ $CXXCOMPILER_MAJOR -lt 3 -o $CXXCOMPILER_MAJOR -eq 2 -a $CXXCOMPILER_MINOR -lt 95 ] ; then
 		echo
-		echo "You have g++ '$CXXCOMPILER_VERSION' installed.  g++ >= 4.8 is required"
+		echo "You have g++ '$CXXCOMPILER_VERSION' installed.  g++ >= 2.95 is required"
 		exit 1
 	fi
 fi
@@ -163,7 +161,7 @@ fi
 
 # Check that a few mandatory programs are installed
 missing_progs="no"
-for prog in perl tar wget cpio unzip rsync bc cmp find xargs ${DL_TOOLS} ; do
+for prog in patch perl tar wget cpio python unzip rsync bc ${DL_TOOLS} ; do
 	if ! which $prog > /dev/null ; then
 		echo "You must install '$prog' on your build machine";
 		missing_progs="yes"
@@ -175,12 +173,6 @@ for prog in perl tar wget cpio unzip rsync bc cmp find xargs ${DL_TOOLS} ; do
 			echo "  zcat is usually part of the gzip package in your distribution"
 		elif test $prog = "bzcat" ; then
 			echo "  bzcat is usually part of the bzip2 package in your distribution"
-		elif test $prog = "cmp" ; then
-			echo "  cmp is usually part of the diffutils package in your distribution"
-		elif test $prog = "find" ; then
-			echo "  find is usually part of the findutils package in your distribution"
-		elif test $prog = "xargs" ; then
-			echo "  xargs is usually part of the findutils package in your distribution"
 		fi
 	fi
 done
@@ -189,20 +181,6 @@ if test "${missing_progs}" = "yes" ; then
 	exit 1
 fi
 
-PATCH_VERSION="$(patch -v 2>/dev/null | sed -n 's/^GNU patch \(.*\)/\1/p')"
-if [ -z "${PATCH_VERSION}" ] ; then
-	echo
-	echo "You must install GNU patch"
-	exit 1
-fi
-PATCH_MAJOR="$(echo "${PATCH_VERSION}" | cut -d . -f 1)"
-PATCH_MINOR="$(echo "${PATCH_VERSION}" | cut -d . -f 2)"
-if [ "${PATCH_MAJOR}" -lt 2 ] || [ "${PATCH_MAJOR}" -eq 2 -a "${PATCH_MINOR}" -lt 7 ] ; then
-	echo
-	echo "You have GNU patch '${PATCH_VERSION}' installed.  GNU patch >= 2.7 is required"
-	exit 1;
-fi
-
 if grep ^BR2_NEEDS_HOST_UTF8_LOCALE=y $BR2_CONFIG > /dev/null; then
 	if ! which locale > /dev/null ; then
 		echo
@@ -227,6 +205,14 @@ if grep -q ^BR2_NEEDS_HOST_JAVA=y $BR2_CONFIG ; then
 	fi
 fi
 
+if grep -q ^BR2_NEEDS_HOST_JAVAC=y $BR2_CONFIG ; then
+	check_prog_host "javac"
+fi
+
+if grep -q ^BR2_NEEDS_HOST_JAR=y $BR2_CONFIG ; then
+	check_prog_host "jar"
+fi
+
 if grep -q ^BR2_HOSTARCH_NEEDS_IA32_LIBS=y $BR2_CONFIG ; then
 	if test ! -f /lib/ld-linux.so.2 ; then
 		echo
@@ -238,7 +224,6 @@ if grep -q ^BR2_HOSTARCH_NEEDS_IA32_LIBS=y $BR2_CONFIG ; then
 		echo "libstdc++6:i386, and zlib1g:i386)."
 		echo "If you're running a RedHat/Fedora distribution, install the glibc.i686 and"
 		echo "zlib.i686 packages."
-		echo "If you're running an ArchLinux distribution, install lib32-glibc."
 		echo "For other distributions, refer to the documentation on how to install the 32 bits"
 		echo "compatibility libraries."
 		exit 1
@@ -263,16 +248,6 @@ if grep -q ^BR2_HOSTARCH_NEEDS_IA32_COMPILER=y $BR2_CONFIG ; then
 	fi
 fi
 
-if grep ^BR2_NEEDS_HOST_GCC_PLUGIN_SUPPORT=y $BR2_CONFIG ; then
-	if ! echo "#include <gcc-plugin.h>" | $HOSTCXX_NOCCACHE -I$($HOSTCXX_NOCCACHE -print-file-name=plugin)/include -x c++ -c - -o /dev/null ; then
-		echo
-		echo "Your Buildroot configuration needs a host compiler capable of building gcc plugins."
-		echo "If you're running a Debian/Ubuntu distribution, install gcc-X-plugin-dev package."
-		echo "For other distributions, refer to their documentation."
-		exit 1 ;
-	fi
-fi
-
 # Check that the Perl installation is complete enough for Buildroot.
 required_perl_modules="Data::Dumper" # Needed to build host-autoconf
 required_perl_modules="$required_perl_modules ExtUtils::MakeMaker" # Used by host-libxml-parser-perl
@@ -283,14 +258,6 @@ if grep -q ^BR2_PACKAGE_MPV=y $BR2_CONFIG ; then
     required_perl_modules="$required_perl_modules Math::BigRat"
 fi
 
-if grep -q ^BR2_PACKAGE_WHOIS=y $BR2_CONFIG ; then
-    required_perl_modules="$required_perl_modules autodie"
-fi
-
-if grep -q -E '^BR2_PACKAGE_(WEBKITGTK|WPEWEBKIT)=y' $BR2_CONFIG ; then
-    required_perl_modules="${required_perl_modules} JSON::PP"
-fi
-
 # This variable will keep the modules that are missing in your system.
 missing_perl_modules=""
 
@@ -310,3 +277,8 @@ if [ -n "$missing_perl_modules" ] ; then
 	echo
 	exit 1
 fi
+
+if ! python -c "import argparse" > /dev/null 2>&1 ; then
+	echo "Your Python installation is not complete enough: argparse module is missing"
+	exit 1
+fi