configure - platform/external/iproute2 - Gitiles

 #! /bin/bash
 # This is not an autoconf generated configure
 #
 INCLUDE=${1:-"$PWD/include"}

 # Make a temp directory in build tree.
 TMPDIR=$(mktemp -d config.XXXXXX)
 trap 'status=$?; rm -rf $TMPDIR; exit $status' EXIT HUP INT QUIT TERM

 check_prog()
 {
     echo -n "$2"
     command -v $1 >/dev/null 2>&1 && (echo "$3:=y" >> Config; echo "yes") || (echo "no"; return 1)
 }

 check_docs()
 {
     if check_prog latex " latex: " HAVE_LATEX; then
         check_prog pdflatex " pdflatex: " HAVE_PDFLATEX || echo " WARNING: no PDF docs can be built from LaTeX files"
         check_prog sgml2latex " sgml2latex: " HAVE_SGML2LATEX || echo " WARNING: no LaTeX files can be build from SGML files"
     else
         echo " WARNING: no docs can be built from LaTeX files"
     fi

     check_prog sgml2html " sgml2html: " HAVE_SGML2HTML || echo " WARNING: no HTML docs can be built from SGML"
 }

 check_toolchain()
 {
     : ${PKG_CONFIG:=pkg-config}
     : ${AR=ar}
     : ${CC=gcc}
     echo "PKG_CONFIG:=${PKG_CONFIG}" >>Config
     echo "AR:=${AR}" >>Config
     echo "CC:=${CC}" >>Config
 }

 check_atm()
 {
     cat >$TMPDIR/atmtest.c <<EOF
 #include <atm.h>
 int main(int argc, char **argv) {
 	struct atm_qos qos;
 	(void) text2qos("aal5,ubr:sdu=9180,rx:none",&qos,0);
 	return 0;
 }
 EOF

     $CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1
     if [ $? -eq 0 ]
     then
 	echo "TC_CONFIG_ATM:=y" >>Config
 	echo yes
     else
 	echo no
     fi
     rm -f $TMPDIR/atmtest.c $TMPDIR/atmtest
 }

 check_xtables()
 {
 	if ! ${PKG_CONFIG} xtables --exists
 	then
 		echo "TC_CONFIG_NO_XT:=y" >>Config
 	fi
 }

 check_xt()
 {
     #check if we have xtables from iptables >= 1.4.5.
     cat >$TMPDIR/ipttest.c <<EOF
 #include <xtables.h>
 #include <linux/netfilter.h>
 static struct xtables_globals test_globals = {
 	.option_offset = 0,
 	.program_name = "tc-ipt",
 	.program_version = XTABLES_VERSION,
 	.orig_opts = NULL,
 	.opts = NULL,
 	.exit_err = NULL,
 };

 int main(int argc, char **argv)
 {
 	xtables_init_all(&test_globals, NFPROTO_IPV4);
 	return 0;
 }
 EOF

     if $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL \
 	$(${PKG_CONFIG} xtables --cflags --libs) -ldl >/dev/null 2>&1
     then
 	echo "TC_CONFIG_XT:=y" >>Config
 	echo "using xtables"
     fi
     rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
 }

 check_xt_old()
 {
     # bail if previous XT checks has already succeded.
     if grep -q TC_CONFIG_XT Config
     then
 	return
     fi

     #check if we dont need our internal header ..
     cat >$TMPDIR/ipttest.c <<EOF
 #include <xtables.h>
 char *lib_dir;
 unsigned int global_option_offset = 0;
 const char *program_version = XTABLES_VERSION;
 const char *program_name = "tc-ipt";
 struct afinfo afinfo = {
 	.libprefix      = "libxt_",
 };

 void exit_error(enum exittype status, const char *msg, ...)
 {
 }

 int main(int argc, char **argv) {

 	return 0;
 }

 EOF

     $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1
     if [ $? -eq 0 ]
     then
 	echo "TC_CONFIG_XT_OLD:=y" >>Config
 	echo "using old xtables (no need for xt-internal.h)"
     fi
     rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
 }

 check_xt_old_internal_h()
 {
     # bail if previous XT checks has already succeded.
     if grep -q TC_CONFIG_XT Config
     then
 	return
     fi

     #check if we need our own internal.h
     cat >$TMPDIR/ipttest.c <<EOF
 #include <xtables.h>
 #include "xt-internal.h"
 char *lib_dir;
 unsigned int global_option_offset = 0;
 const char *program_version = XTABLES_VERSION;
 const char *program_name = "tc-ipt";
 struct afinfo afinfo = {
 	.libprefix      = "libxt_",
 };

 void exit_error(enum exittype status, const char *msg, ...)
 {
 }

 int main(int argc, char **argv) {

 	return 0;
 }

 EOF
 	$CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1

 	if [ $? -eq 0 ]
 	then
 	    echo "using old xtables with xt-internal.h"
 	    echo "TC_CONFIG_XT_OLD_H:=y" >>Config
 	fi
 	rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
 }

 check_ipt()
 {
 	if ! grep TC_CONFIG_XT Config > /dev/null
 	then
 		echo "using iptables"
 	fi
 }

 check_ipt_lib_dir()
 {
 	IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables)
 	if [ -n "$IPT_LIB_DIR" ]; then
 		echo $IPT_LIB_DIR
 		echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> Config
 		return
 	fi

 	for dir in /lib /usr/lib /usr/local/lib
 	do
 		for file in $dir/{xtables,iptables}/lib*t_*so ; do
 			if [ -f $file ]; then
 				echo ${file%/*}
 				echo "IPT_LIB_DIR:=${file%/*}" >> Config
 				return
 			fi
 		done
 	done
 	echo "not found!"
 }

 check_setns()
 {
     cat >$TMPDIR/setnstest.c <<EOF
 #include <sched.h>
 int main(int argc, char **argv)
 {
 	(void)setns(0,0);
 	return 0;
 }
 EOF
     $CC -I$INCLUDE -o $TMPDIR/setnstest $TMPDIR/setnstest.c >/dev/null 2>&1
     if [ $? -eq 0 ]
     then
 	echo "IP_CONFIG_SETNS:=y" >>Config
 	echo "yes"
     else
 	echo "no"
     fi
     rm -f $TMPDIR/setnstest.c $TMPDIR/setnstest
 }

 check_ipset()
 {
     cat >$TMPDIR/ipsettest.c <<EOF
 #include <linux/netfilter/ipset/ip_set.h>
 #ifndef IP_SET_INVALID
 #define IPSET_DIM_MAX 3
 typedef unsigned short ip_set_id_t;
 #endif
 #include <linux/netfilter/xt_set.h>

 struct xt_set_info info;
 #if IPSET_PROTOCOL == 6
 int main(void)
 {
 	return IPSET_MAXNAMELEN;
 }
 #else
 #error unknown ipset version
 #endif
 EOF

     if $CC -I$INCLUDE -o $TMPDIR/ipsettest $TMPDIR/ipsettest.c >/dev/null 2>&1
     then
 	echo "TC_CONFIG_IPSET:=y" >>Config
 	echo "yes"
     else
 	echo "no"
     fi
     rm -f $TMPDIR/ipsettest.c $TMPDIR/ipsettest
 }

 check_elf()
 {
     cat >$TMPDIR/elftest.c <<EOF
 #include <libelf.h>
 #include <gelf.h>
 int main(void)
 {
 	Elf_Scn *scn __attribute__((__unused__));
 	GElf_Shdr shdr  __attribute__((__unused__));;
 	return elf_version(EV_CURRENT);
 }
 EOF

     if $CC -I$INCLUDE -o $TMPDIR/elftest $TMPDIR/elftest.c -lelf >/dev/null 2>&1
     then
 	echo "HAVE_ELF:=y" >>Config
 	echo "yes"
     else
 	echo "no"
     fi
     rm -f $TMPDIR/elftest.c $TMPDIR/elftest
 }

 check_selinux()
 # SELinux is a compile time option in the ss utility
 {
 	if ${PKG_CONFIG} libselinux --exists
 	then
 		echo "HAVE_SELINUX:=y" >>Config
 		echo "yes"
 	else
 		echo "no"
 	fi
 }

 check_mnl()
 {
 	if ${PKG_CONFIG} libmnl --exists
 	then
 		echo "HAVE_MNL:=y" >>Config
 		echo "yes"
 	else
 		echo "no"
 	fi
 }

 check_berkeley_db()
 {
     cat >$TMPDIR/dbtest.c <<EOF
 #include <fcntl.h>
 #include <stdlib.h>
 #include <db_185.h>
 int main(int argc, char **argv) {
 	dbopen("/tmp/xxx_test_db.db", O_CREAT|O_RDWR, 0644, DB_HASH, NULL);
 	return 0;
 }
 EOF
     $CC -I$INCLUDE -o $TMPDIR/dbtest $TMPDIR/dbtest.c -ldb >/dev/null 2>&1
     if [ $? -eq 0 ]
     then
 	echo "HAVE_BERKELEY_DB:=y" >>Config
 	echo "yes"
     else
 	echo "no"
     fi
     rm -f $TMPDIR/dbtest.c $TMPDIR/dbtest
 }

 quiet_config()
 {
 	cat <<EOF
 # user can control verbosity similar to kernel builds (e.g., V=1)
 ifeq ("\$(origin V)", "command line")
   VERBOSE = \$(V)
 endif
 ifndef VERBOSE
   VERBOSE = 0
 endif
 ifeq (\$(VERBOSE),1)
   Q =
 else
   Q = @
 endif

 ifeq (\$(VERBOSE), 0)
     QUIET_CC       = @echo '    CC       '\$@;
     QUIET_AR       = @echo '    AR       '\$@;
     QUIET_LINK     = @echo '    LINK     '\$@;
     QUIET_YACC     = @echo '    YACC     '\$@;
     QUIET_LEX      = @echo '    LEX      '\$@;
 endif
 EOF
 }

 echo "# Generated config based on" $INCLUDE >Config
 quiet_config >> Config

 check_toolchain

 echo "TC schedulers"

 echo -n " ATM	"
 check_atm

 check_xtables
 if ! grep -q TC_CONFIG_NO_XT Config
 then
 	echo -n " IPT	"
 	check_xt
 	check_xt_old
 	check_xt_old_internal_h
 	check_ipt

 	echo -n " IPSET  "
 	check_ipset
 fi

 echo
 if ! grep -q TC_CONFIG_NO_XT Config
 then
 	echo -n "iptables modules directory: "
 	check_ipt_lib_dir
 fi

 echo -n "libc has setns: "
 check_setns

 echo -n "SELinux support: "
 check_selinux

 echo -n "ELF support: "
 check_elf

 echo -n "libmnl support: "
 check_mnl

 echo -n "Berkeley DB: "
 check_berkeley_db

 echo
 echo -n "docs:"
 check_docs
 echo

 echo >> Config
 echo "%.o: %.c" >> Config
 echo '	$(QUIET_CC)$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<' >> Config
	#! /bin/bash
	# This is not an autoconf generated configure
	#
	INCLUDE=${1:-"$PWD/include"}

	# Make a temp directory in build tree.
	TMPDIR=$(mktemp -d config.XXXXXX)
	trap 'status=$?; rm -rf $TMPDIR; exit $status' EXIT HUP INT QUIT TERM

	check_prog()
	{
	echo -n "$2"
	command -v $1 >/dev/null 2>&1 && (echo "$3:=y" >> Config; echo "yes") \|\| (echo "no"; return 1)
	}

	check_docs()
	{
	if check_prog latex " latex: " HAVE_LATEX; then
	check_prog pdflatex " pdflatex: " HAVE_PDFLATEX \|\| echo " WARNING: no PDF docs can be built from LaTeX files"
	check_prog sgml2latex " sgml2latex: " HAVE_SGML2LATEX \|\| echo " WARNING: no LaTeX files can be build from SGML files"
	else
	echo " WARNING: no docs can be built from LaTeX files"
	fi

	check_prog sgml2html " sgml2html: " HAVE_SGML2HTML \|\| echo " WARNING: no HTML docs can be built from SGML"
	}

	check_toolchain()
	{
	: ${PKG_CONFIG:=pkg-config}
	: ${AR=ar}
	: ${CC=gcc}
	echo "PKG_CONFIG:=${PKG_CONFIG}" >>Config
	echo "AR:=${AR}" >>Config
	echo "CC:=${CC}" >>Config
	}

	check_atm()
	{
	cat >$TMPDIR/atmtest.c <<EOF
	#include <atm.h>
	int main(int argc, char **argv) {
	struct atm_qos qos;
	(void) text2qos("aal5,ubr:sdu=9180,rx:none",&qos,0);
	return 0;
	}
	EOF

	$CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1
	if [ $? -eq 0 ]
	then
	echo "TC_CONFIG_ATM:=y" >>Config
	echo yes
	else
	echo no
	fi
	rm -f $TMPDIR/atmtest.c $TMPDIR/atmtest
	}

	check_xtables()
	{
	if ! ${PKG_CONFIG} xtables --exists
	then
	echo "TC_CONFIG_NO_XT:=y" >>Config
	fi
	}

	check_xt()
	{
	#check if we have xtables from iptables >= 1.4.5.
	cat >$TMPDIR/ipttest.c <<EOF
	#include <xtables.h>
	#include <linux/netfilter.h>
	static struct xtables_globals test_globals = {
	.option_offset = 0,
	.program_name = "tc-ipt",
	.program_version = XTABLES_VERSION,
	.orig_opts = NULL,
	.opts = NULL,
	.exit_err = NULL,
	};

	int main(int argc, char **argv)
	{
	xtables_init_all(&test_globals, NFPROTO_IPV4);
	return 0;
	}
	EOF

	if $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL \
	$(${PKG_CONFIG} xtables --cflags --libs) -ldl >/dev/null 2>&1
	then
	echo "TC_CONFIG_XT:=y" >>Config
	echo "using xtables"
	fi
	rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
	}

	check_xt_old()
	{
	# bail if previous XT checks has already succeded.
	if grep -q TC_CONFIG_XT Config
	then
	return
	fi

	#check if we dont need our internal header ..
	cat >$TMPDIR/ipttest.c <<EOF
	#include <xtables.h>
	char *lib_dir;
	unsigned int global_option_offset = 0;
	const char *program_version = XTABLES_VERSION;
	const char *program_name = "tc-ipt";
	struct afinfo afinfo = {
	.libprefix = "libxt_",
	};

	void exit_error(enum exittype status, const char *msg, ...)
	{
	}

	int main(int argc, char **argv) {

	return 0;
	}

	EOF

	$CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1
	if [ $? -eq 0 ]
	then
	echo "TC_CONFIG_XT_OLD:=y" >>Config
	echo "using old xtables (no need for xt-internal.h)"
	fi
	rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
	}

	check_xt_old_internal_h()
	{
	# bail if previous XT checks has already succeded.
	if grep -q TC_CONFIG_XT Config
	then
	return
	fi

	#check if we need our own internal.h
	cat >$TMPDIR/ipttest.c <<EOF
	#include <xtables.h>
	#include "xt-internal.h"
	char *lib_dir;
	unsigned int global_option_offset = 0;
	const char *program_version = XTABLES_VERSION;
	const char *program_name = "tc-ipt";
	struct afinfo afinfo = {
	.libprefix = "libxt_",
	};

	void exit_error(enum exittype status, const char *msg, ...)
	{
	}

	int main(int argc, char **argv) {

	return 0;
	}

	EOF
	$CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1

	if [ $? -eq 0 ]
	then
	echo "using old xtables with xt-internal.h"
	echo "TC_CONFIG_XT_OLD_H:=y" >>Config
	fi
	rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
	}

	check_ipt()
	{
	if ! grep TC_CONFIG_XT Config > /dev/null
	then
	echo "using iptables"
	fi
	}

	check_ipt_lib_dir()
	{
	IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables)
	if [ -n "$IPT_LIB_DIR" ]; then
	echo $IPT_LIB_DIR
	echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> Config
	return
	fi

	for dir in /lib /usr/lib /usr/local/lib
	do
	for file in $dir/{xtables,iptables}/libt_so ; do
	if [ -f $file ]; then
	echo ${file%/*}
	echo "IPT_LIB_DIR:=${file%/*}" >> Config
	return
	fi
	done
	done
	echo "not found!"
	}

	check_setns()
	{
	cat >$TMPDIR/setnstest.c <<EOF
	#include <sched.h>
	int main(int argc, char **argv)
	{
	(void)setns(0,0);
	return 0;
	}
	EOF
	$CC -I$INCLUDE -o $TMPDIR/setnstest $TMPDIR/setnstest.c >/dev/null 2>&1
	if [ $? -eq 0 ]
	then
	echo "IP_CONFIG_SETNS:=y" >>Config
	echo "yes"
	else
	echo "no"
	fi
	rm -f $TMPDIR/setnstest.c $TMPDIR/setnstest
	}

	check_ipset()
	{
	cat >$TMPDIR/ipsettest.c <<EOF
	#include <linux/netfilter/ipset/ip_set.h>
	#ifndef IP_SET_INVALID
	#define IPSET_DIM_MAX 3
	typedef unsigned short ip_set_id_t;
	#endif
	#include <linux/netfilter/xt_set.h>

	struct xt_set_info info;
	#if IPSET_PROTOCOL == 6
	int main(void)
	{
	return IPSET_MAXNAMELEN;
	}
	#else
	#error unknown ipset version
	#endif
	EOF

	if $CC -I$INCLUDE -o $TMPDIR/ipsettest $TMPDIR/ipsettest.c >/dev/null 2>&1
	then
	echo "TC_CONFIG_IPSET:=y" >>Config
	echo "yes"
	else
	echo "no"
	fi
	rm -f $TMPDIR/ipsettest.c $TMPDIR/ipsettest
	}

	check_elf()
	{
	cat >$TMPDIR/elftest.c <<EOF
	#include <libelf.h>
	#include <gelf.h>
	int main(void)
	{
	Elf_Scn *scn __attribute__((__unused__));
	GElf_Shdr shdr __attribute__((__unused__));;
	return elf_version(EV_CURRENT);
	}
	EOF

	if $CC -I$INCLUDE -o $TMPDIR/elftest $TMPDIR/elftest.c -lelf >/dev/null 2>&1
	then
	echo "HAVE_ELF:=y" >>Config
	echo "yes"
	else
	echo "no"
	fi
	rm -f $TMPDIR/elftest.c $TMPDIR/elftest
	}

	check_selinux()
	# SELinux is a compile time option in the ss utility
	{
	if ${PKG_CONFIG} libselinux --exists
	then
	echo "HAVE_SELINUX:=y" >>Config
	echo "yes"
	else
	echo "no"
	fi
	}

	check_mnl()
	{
	if ${PKG_CONFIG} libmnl --exists
	then
	echo "HAVE_MNL:=y" >>Config
	echo "yes"
	else
	echo "no"
	fi
	}

	check_berkeley_db()
	{
	cat >$TMPDIR/dbtest.c <<EOF
	#include <fcntl.h>
	#include <stdlib.h>
	#include <db_185.h>
	int main(int argc, char **argv) {
	dbopen("/tmp/xxx_test_db.db", O_CREAT\|O_RDWR, 0644, DB_HASH, NULL);
	return 0;
	}
	EOF
	$CC -I$INCLUDE -o $TMPDIR/dbtest $TMPDIR/dbtest.c -ldb >/dev/null 2>&1
	if [ $? -eq 0 ]
	then
	echo "HAVE_BERKELEY_DB:=y" >>Config
	echo "yes"
	else
	echo "no"
	fi
	rm -f $TMPDIR/dbtest.c $TMPDIR/dbtest
	}

	quiet_config()
	{
	cat <<EOF
	# user can control verbosity similar to kernel builds (e.g., V=1)
	ifeq ("\$(origin V)", "command line")
	VERBOSE = \$(V)
	endif
	ifndef VERBOSE
	VERBOSE = 0
	endif
	ifeq (\$(VERBOSE),1)
	Q =
	else
	Q = @
	endif

	ifeq (\$(VERBOSE), 0)
	QUIET_CC = @echo ' CC '\$@;
	QUIET_AR = @echo ' AR '\$@;
	QUIET_LINK = @echo ' LINK '\$@;
	QUIET_YACC = @echo ' YACC '\$@;
	QUIET_LEX = @echo ' LEX '\$@;
	endif
	EOF
	}

	echo "# Generated config based on" $INCLUDE >Config
	quiet_config >> Config

	check_toolchain

	echo "TC schedulers"

	echo -n " ATM "
	check_atm

	check_xtables
	if ! grep -q TC_CONFIG_NO_XT Config
	then
	echo -n " IPT "
	check_xt
	check_xt_old
	check_xt_old_internal_h
	check_ipt

	echo -n " IPSET "
	check_ipset
	fi

	echo
	if ! grep -q TC_CONFIG_NO_XT Config
	then
	echo -n "iptables modules directory: "
	check_ipt_lib_dir
	fi

	echo -n "libc has setns: "
	check_setns

	echo -n "SELinux support: "
	check_selinux

	echo -n "ELF support: "
	check_elf

	echo -n "libmnl support: "
	check_mnl

	echo -n "Berkeley DB: "
	check_berkeley_db

	echo
	echo -n "docs:"
	check_docs
	echo

	echo >> Config
	echo "%.o: %.c" >> Config
	echo ' $(QUIET_CC)$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<' >> Config