proxychains-ng/configure

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#!/bin/sh
prefix=/usr/local
ismac() {
uname -s | grep Darwin >/dev/null
}
isx86_64() {
uname -m | grep -i X86_64 >/dev/null
}
isbsd() {
uname -s | grep BSD >/dev/null
}
isopenbsd() {
uname -s | grep OpenBSD >/dev/null
}
check_compile() {
printf "checking %s ... " "$1"
local tmp=$(mktemp)
printf "$3" > "$tmp".c
local res=0
$CC $CPPFLAGS $2 $CFLAGS -c "$tmp".c -o "$tmp".o >/dev/null 2>&1 \
|| res=1
rm -f "$tmp".c "$tmp".o
test x$res = x0 && \
{ printf "yes\n" ; test x"$2" = x || CPPFLAGS="$CPPFLAGS $2" ; } \
|| printf "no\n"
return $res
}
check_define() {
printf "checking whether \$CC defines %s ... " "$1"
local res=1
$CC $CPPFLAGS $CFLAGS -dM -E - </dev/null | grep "$1" >/dev/null && res=0
test x$res = x0 && printf "yes\n" || printf "no\n"
return $res
}
check_compile_run() {
printf "checking %s ... " "$1"
local tmp=$(mktemp)
printf "$2" > "$tmp".c
local res=0
$CC $CPPFLAGS $CFLAGS "$tmp".c -o "$tmp".out >/dev/null 2>&1 \
|| res=1
test x$res = x0 && { "$tmp".out || res=1 ; }
rm -f "$tmp".c "$tmp".o "$tmp".out
test x$res = x0 && printf "yes\n" || printf "no\n"
return $res
}
usage() {
echo "supported arguments"
echo "--prefix=/path default: $prefix"
echo "--exec_prefix=/path default: $prefix/bin"
echo "--bindir=/path default: $prefix/bin"
echo "--libdir=/path default: $prefix/lib"
echo "--includedir=/path default: $prefix/include"
echo "--sysconfdir=/path default: $prefix/etc"
echo "--ignore-cve default: no"
echo " if set to yes ignores CVE-2015-3887 and makes it possible"
echo " to preload from current dir (insecure)"
ismac && isx86_64 && echo "--fat-binary : build for both i386 and x86_64 architectures on 64-bit Macs"
echo "--help : show this text"
exit 1
}
spliteq() {
arg=$1
echo "${arg#*=}"
#alternatives echo "$arg" | cut -d= -f2-
# or echo "$arg" | sed 's/[^=]*=//'
}
fat_binary=
ignore_cve=no
parsearg() {
case "$1" in
--prefix=*) prefix=`spliteq $1`;;
--exec_prefix=*) exec_prefix=`spliteq $1`;;
--bindir=*) bindir=`spliteq $1`;;
--libdir=*) libdir=`spliteq $1`;;
--includedir=*) includedir=`spliteq $1`;;
--sysconfdir=*) sysconfdir=`spliteq $1`;;
--ignore-cve) ignore_cve=1;;
--ignore-cve=*) ignore_cve=`spliteq $1`;;
--fat-binary) fat_binary=1;;
--help) usage;;
esac
}
while true ; do
case $1 in
-*) parsearg "$1"; shift;;
*) break ;;
esac
done
if [ -z "$exec_prefix" ] ; then
exec_prefix=$prefix
fi
if [ -z "$libdir" ] ; then
libdir=$prefix/lib
fi
if [ -z "$includedir" ] ; then
includedir=$prefix/include
fi
if [ -z "$sysconfdir" ] ; then
sysconfdir=$prefix/etc
fi
if [ -z "$bindir" ] ; then
bindir=$exec_prefix/bin
fi
if [ -z "$CC" ] ; then
CC=cc
fi
check_compile 'whether netinet/in.h defines s6_addr16' "" \
'#include <netinet/in.h>\nint main(int a, char**c){struct in6_addr x={.s6_addr32[0]=a};return x.s6_addr16[0]; }' \
|| {
check_compile 'whether netinet/in.h defines __u6_addr.__u6_addr16' \
'-Ds6_addr16=__u6_addr.__u6_addr16 -Ds6_addr32=__u6_addr.__u6_addr32' \
'#include <netinet/in.h>\nint main(int a, char**c){struct in6_addr x={.s6_addr32[0]=a};return x.s6_addr16[0]; }'
}
check_define __OpenBSD__ && \
check_compile_run 'whether OpenBSDs fclose() (illegally) calls close()' \
'#include <stdio.h>\n#include<stdlib.h>\nint close(int x){exit(0);}int main(){fclose(stdin);return 1;}' && \
CPPFLAGS="$CPPFLAGS -DBROKEN_FCLOSE"
echo CC?=$CC>config.mak
[ -z "$CPPFLAGS" ] || echo CPPFLAGS?=$CPPFLAGS>>config.mak
[ -z "$CFLAGS" ] || echo USER_CFLAGS?=$CFLAGS>>config.mak
[ -z "$LDFLAGS" ] || echo USER_LDFLAGS?=$LDFLAGS>>config.mak
echo prefix=$prefix>>config.mak
echo exec_prefix=$exec_prefix>>config.mak
echo bindir=$bindir>>config.mak
echo libdir=$libdir>>config.mak
echo includedir=$includedir>>config.mak
echo sysconfdir=$sysconfdir>>config.mak
[ "$ignore_cve" = "no" ] && echo CPPFLAGS+= -DSUPER_SECURE>>config.mak
make_cmd=make
if ismac ; then
echo NO_AS_NEEDED=>>config.mak
echo LDSO_SUFFIX=dylib>>config.mak
echo MAC_CFLAGS+=-DIS_MAC=1>>config.mak
if isx86_64 && [ "$fat_binary" = 1 ] ; then
echo "Configuring a fat binary for i386 and x86_64"
echo MAC_CFLAGS+=-arch i386 -arch x86_64>>config.mak
echo LDFLAGS+=-arch i386 -arch x86_64>>config.mak
fi
echo LD_SET_SONAME=-Wl,-install_name,>>config.mak
elif isbsd ; then
echo LIBDL=>>config.mak
echo "CFLAGS+=-DIS_BSD">>config.mak
isopenbsd && echo "CFLAGS+=-DIS_OPENBSD">>config.mak
make_cmd=gmake
fi
echo "Done, now run $make_cmd && $make_cmd install"