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6 7u83 1 
# $Id$
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# ex:filetype=sh
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# Wrap normal command utilities with env.
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AWK="/usr/bin/env awk"
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CUT="/usr/bin/env cut"
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SED="/usr/bin/env sed"
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# Check if the CC environment variable is set.
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check_cc()
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{
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	if [ -z $CC ]; then
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		CC="cc";
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	elif [ "$CC" = "CC" ]; then
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		CC="cc";
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		echo "NOTICE: CC is often the C++ compiler, we just need a normal C compiler,";
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		echo "        setting CC to \"cc\"."
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		echo;
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	elif [ "$CC" = "xlc_r" -o "$CC" = "xlc_r4" -o "$CC" = "xlc_r7"\
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		-o "$CC" = "cc_r" -o "$CC" = "cc_r4" -o "$CC" = "cc_r7" ]; then
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		# We are on AIX, and since we focus on ANSI as a compiler, use
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		# the right bootstrapping compiler: xlc (which implies ansi).
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		CC="xlc";
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		CCTYPE="AIX";
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		echo "NOTICE: Using xlc_r or cc_r creates POSIX threaded applications.  We do";
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		echo "        not need that.  Setting CC to \"xlc\"."
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		echo
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	fi
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	check_cc_ver ${CC}
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}
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# Check to see if we can lift the version string from the cc call.
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check_cc_ver()
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{
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	CC=$1
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	case "${CC}" in
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		cc*)
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		VERSIONSTRING=`${CC} --version`
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		if [ $? -eq 0 ]; then
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			CCVER=`echo ${VERSIONSTRING} | ${AWK} '{ where = match($0, /[[:digit:]][[:digit:]]?\.?[[:digit:]]?[[:digit:]]?\.[[:digit:]][[:digit:]]?/); if (where != 0) print substr($0, RSTART, RLENGTH); else print where }'`
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		fi
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		;;
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		[gi]cc*)
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		VERSIONSTRING=`${CC} --version`
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		if [ $? -eq 0 ]; then
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			CCVER=`echo ${VERSIONSTRING} | ${AWK} '{ where = match($0, /[[:digit:]][[:digit:]]?\.?[[:digit:]]?[[:digit:]]?\.[[:digit:]][[:digit:]]?/); if (where != 0) print substr($0, RSTART, RLENGTH); else print where }'`
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		fi
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		;;
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		*)
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			CCVER=0
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		;;
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	esac
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	CCVER_MAJOR=`echo ${CCVER} | ${CUT} -d . -f 1`
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	CCVER_MINOR=`echo ${CCVER} | ${CUT} -d . -f 2`
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	CCVER_TINY=`echo ${CCVER} | ${CUT} -d . -f 3`
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	if [ -z ${CCVER_TINY} ]; then
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		CCVER_TINY=0
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	fi
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}
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# Check to see which architecture the host is running on.
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check_hostarch()
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{
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	case "$HOSTARCH" in
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		alpha)
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		# DEC, nay, Compaq, nay HP Alpha
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		BLDARCH="alpha"
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		BLDARCHBITS="64"
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		;;
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		amd64)
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		# AMD64
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		BLDARCH="amd64"
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		BLDARCHBITS="64"
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		;;
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		i386)
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		# Intel 80386
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		BLDARCH="80x86"
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		BLDARCHBITS="32"
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		;;
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		i486)
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		# Intel 80486
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		BLDARCHBITS="32"
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		;;
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		i586)
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		# Intel 80586 (Pentium, Pentium MMX)
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		BLDARCH="80x86"
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		BLDARCHBITS="32"
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		;;
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		i686)
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		# Intel 80686 (Pentium Pro, Pentium II,
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		# Pentium III, Pentium 4, AMD Athlon)
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		BLDARCH="80x86"
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		BLDARCHBITS="32"
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		;;
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		sparc)
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		# SPARC 32 bit
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		BLDARCH="sparc"
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		BLDARCHBITS="32"
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		;;
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		sparc64)
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		# SPARC 64 bit
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		BLDARCH="sparc"
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		BLDARCHBITS="64"
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		;;
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		*)
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		echo "Unknown architecture \"${HOSTARCH}\""
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		echo "Please report the following to the developers:"
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		echo
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		echo "uname -m:	${HOSTARCH}"
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		echo
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		;;
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	esac
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}
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usage()
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{
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	echo "makedefs"
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	echo "usage: [OPTIONS] ./makedefs [-h]"
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	echo
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	echo "Configuration definition generator of the TenDRA Project"
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	echo
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	echo "Available OPTIONS (OPTION=value):"
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	echo "PREFIX		installation prefix"
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	echo "CC		C compiler command name"
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	echo "CFLAGS		C compiler flags"
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	echo "EXECFORMAT	desired default executable format (aout, elf)"
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}