#!/bin/sh# Hand-rolled by John Viega (viega@list.org)# For the few things I had to check, this was much easier# for me than was figuring out autoconf.  However, I did look# at an autoconf-generated configure script for a few things.# Most notably, I adapted its test for a fast install program.## I hear ${foo-bar} may not be portable, so I won't use it.# Looks like it probably is, though, since the install-sh program uses it.###### InitializationFLAGS=RM_CMD='rm -f tmp.c a.out a.exe 2>&1 >/dev/null'trap "${RM_CMD};exit 1" 1 2 15#defaultsPREFIX=/usr/localBINDIR=DATADIR=MANDIR=PROGNAME=its4OPTIMIZATION=-O3QUIET=CC=INSTALLPROG=# Parse command-line arguments.for OPTIONdo    case ${OPTION} in    -*=*)        ARGUMENT=`echo ${OPTION} | sed 's/[-_a-zA-Z0-9]*=//'`       OPTION=`echo ${OPTION} | sed 's/=.*//'`       ;;    -*)       ARGUMENT=       ;;    esac    OPTION=`echo ${OPTION}|\            sed 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`     case `echo ${OPTION}|sed 's/^-*//'` in    with-cpp)      if test -n "${ARGUMENT}"; then         CC=${ARGUMENT}      else         echo "Option ${OPTION} requires an argument."         exit 1      fi      ;;    prefix)      if test -n "${ARGUMENT}"; then         #Remove trailing slashes.         PREFIX=`echo ${ARGUMENT} | sed 's/\/*\$//'`      else         echo "Option ${OPTION} requires an argument."         exit 1      fi      ;;    bindir)      BINDIR=`echo ${ARGUMENT} | sed 's/\/*\$//'`      ;;    datadir)      DATADIR=`echo ${ARGUMENT} | sed 's/\/*\$//'`      ;;    mandir)      MANDIR=`echo ${ARGUMENT} | sed 's/\/*\$//'`      ;;    program-name | program | prog)      if test -n "${ARGUMENT}"; then         PROGNAME=${ARGUMENT}      else         echo "Option ${OPTION} requires an argument."         exit 1      fi      ;;    optimization-level | optimization)      if test -n "${ARGUMENT}"; then         OPTIMIZATION=-O${ARGUMENT}      else         echo "Option ${OPTION} requires an argument."         exit 1      fi      ;;    quiet | silent)      QUIET=yes      ;;    help | help | h | ?)      cat <<EOFUsage: configure [options]Options:  --prefix=PATH           Set base directory for installation to directory                          specified by PATH.  Default is '/usr/local'.  --bindir=PATH           Install binaries to the directory specified by PATH.                          Default is '\${prefix}/bin'.  --datadir=PATH          Install the ITS4 database in the specified directory.                          Default is '\${prefix}/its4'.  --mandir=PATH           Install man pages to the specified directory.  --with-cpp=PATH         Use the C++ compiler located at PATH.                          Default is to try g++ then CC.  --program-name=NAME     Name of the scanner executable.  Default is 'its4'.  --optimization=LEVEL    Set the level of optimization to pass to the compiler.                          Default is '3'.  --quiet                 Do not print 'Checking...' messages.  --help                  This message.  Note: There must be no spaces surrounding an '='.EOF    exit 0    ;;    *)      echo configure: invalid option \'${OPTION}\'      echo Use \'configure --help\' to see list of options.      exit 1    esacdoneif test -z "${QUIET}"; then exec 5>&1; else exec 5>/dev/null; fi###### Can we invoke the compiler?cat >tmp.c <<EOF #include <iostream.h>int main(){return 0;}EOFif test -n "${CC}"; then   printf %s "Checking for user-supplied C++... " 1>&5   if `${CC} tmp.c 2>/dev/null` 2>/dev/null; then     echo "yes" 1>&5   else     echo "no" 1>&5     CC=   fifiif test -z "${CC}"; then    printf %s "Looking for a C++ compiler... " 1>&5    if `g++ tmp.c 2>/dev/null` 2>/dev/null; then      echo "g++" 1>&5      CC=g++      FLAGS="${FLAGS} -Wall"    else      if `CC tmp.c 2&>1 >/dev/null` 2>/dev/null; then        echo "CC" 1>&5	CC=CC	printf %s "Testing for -Wall... " 1>&5	if `${CC} -Wall tmp.c 2>/dev/null` 2</dev/null; then          echo "yes" 1>&5	  FLAGS="${FLAGS} -Wall"        else           echo "no" 1>&5        fi      else        echo "no" 1>&5        echo 1>&5        echo "Can't find a C++ compiler in your path."        echo "Looked for g++ and CC."        echo "Please use the option '--with-cpp' to set a valid compiler."        ${RM_CMD}        exit 0	      fi    fifi${RM_CMD}# Check for a good install program.  # Adapted somewhat from autoconf generated stuff.printf %s "Checking for a BSD compatible install... " 1>&5IFS="${IFS=	}"; save_IFS="$IFS"; IFS=":"for DIRNAME in $PATH; do  DIRNAME=`echo ${DIRNAME} | sed 's/\/*\$//'`    # OSF1 and SCO ODT 3.0 have their own names for install.    # Don't use installbsd from OSF since it installs stuff as root    # by default.  for PNAME in ginstall scoinst install; do      if test -f "${DIRNAME}/${PNAME}"; then        if test "${PNAME}" = install &&          grep dspmsg ${DIRNAME}/${PNAME} >/dev/null 2>&1; then	  # AIX install.  It has an incompatible calling convention.	  :	else	  INSTALLPROG="${DIRNAME}/${PNAME} -c"	  break 2	fi      fi  donedoneIFS="${save_IFS}"if test -n "${INSTALLPROG}"; then   echo "yes" 1>&5else   echo "no" 1>&5   INSTALLPROG=./install-shfi###### Check for snprintf()printf %s "Checking for snprintf()... " 1>&5cat >tmp.c <<EOF#include <stdio.h>#include <string.h>int main(){    char buf[12];    snprintf(buf, 2, "%s", "foof");}EOFif `${CC} tmp.c 2>/dev/null`; then     echo "yes" 1>&5    FLAGS="${FLAGS} -DHAVE_SNPRINTF"else    echo "no" 1>&5fi${RM_CMD}###### Check for getopt_long()printf %s "Checking for getopt_long()... " 1>&5cat > tmp.c <<EOF#include <getopt.h>int main(){    getopt_long(0,0,0,0,0);}EOFif `${CC} tmp.c 2>/dev/null`; then     echo "yes" 1>&5    FLAGS="${FLAGS} -DHAVE_GETOPT_LONG"else    echo "no" 1>&5    EXTRA_OBJS="getopt.o getopt1.o"fi${RM_CMD}###### Check for unistd.hprintf %s "Checking for unistd.h... " 1>&5cat > tmp.c <<EOF#include <unistd.h>int main(){}EOFif `${CC} tmp.c 2>/dev/null`; then    echo "yes" 1>&5    FLAGS="${FLAGS} -DHAVE_UNISTD"else    echo "no" 1>&5fi${RM_CMD}# Finalize variables before writing the makefile.if test -z "${BINDIR}";  then BINDIR=${PREFIX}/bin; fiif test -z "${DATADIR}"; then DATADIR=${PREFIX}/its4; fiif test -z "${MANDIR}";  then MANDIR=${PREFIX}/man; fi# Write the makefile.cat > Makefile <<EOF# Warning! DO NOT EDIT THIS FILE!## This file was auto-generated by ./configure.# If you need to make changes, try looking at './configure --help'# If that doesn't work, modify Makefile.inCC=${CC}EXTRA_FLAGS=${FLAGS}INSTALL=${INSTALLPROG}INSTALL_BINDIR=${BINDIR}INSTALL_DATADIR=${DATADIR}INSTALL_MANDIR=${MANDIR}PROGNAME=${PROGNAME}OPTIMIZATION=${OPTIMIZATION}EXTRA_OBJS=${EXTRA_OBJS}##### End of user-defined options.EOFcat  Makefile.in >> Makefileecho echo "******************* Configuration completed *******************"echo "To build, type 'make'.  Then, to install, type 'make install'."