util/msrtool/configure

   1 #!/bin/sh
   2 #
   3 # This file is part of msrtool.
   4 #
   5 # Copyright (c) 2008, 2009 Peter Stuge <peter@stuge.se>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License version 2 as
   9 # published by the Free Software Foundation.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16
  17 # If this is left unset, try to set the version string from the highest
  18 # revision number of the checked out files.
  19 VERSION=""
  20
  21 REV="`git describe --always 2>/dev/null`"
  22 VERSION="${VERSION:-$REV}"
  23
  24 findprog() {
  25         NPARMS=$#
  26         WHAT="${1}"
  27         shift
  28         FROMENV="${1}"
  29         shift
  30         printf "searching for ${WHAT} (${*})..." 1>&2
  31         test -n "${FROMENV}" && {
  32                 echo "  using environment: ${FROMENV}" 1>&2
  33                 echo "${FROMENV}"
  34                 exit 0
  35         }
  36         i=2
  37         while test $i -lt $NPARMS; do
  38                 test -z "${1}" && {
  39                         shift
  40                         i=$(($i+1))
  41                         continue
  42                 }
  43                 FILE="`which "${1}" 2>/dev/null`"
  44                 test $? -eq 0 && {
  45                         echo "${1}"
  46                         break
  47                 }
  48                 shift
  49                 i=$(($i+1))
  50         done
  51         test -z "${1}" && {
  52                 echo "  not found!" 1>&2
  53                 echo 1>&2
  54                 echo "This is a fatal error, configure is exiting!" 1>&2
  55                 exit 1
  56         }
  57         echo "  using ${FILE} in PATH" 1>&2
  58         exit 0
  59 }
  60
  61 trycompile() {
  62         NPARMS=$#
  63         WHAT="${1}"
  64         shift
  65         printf "finding CFLAGS for ${WHAT}... " 1>&2
  66         OUT="${OUT}\n${CC} ${CFLAGS} -o .config.o -c .config.c"
  67         OUT="${OUT}\n`echo "${CC} ${CFLAGS} -o .config.o -c .config.c"|sh 2>&1`"
  68         test $? -eq 0 && {
  69                 echo " using: ${CFLAGS}" 1>&2
  70                 echo "${CFLAGS}"
  71                 exit 0
  72         }
  73         i=1
  74         while test $i -lt $NPARMS; do
  75                 OUT="${OUT}\n${CC} ${CFLAGS} ${1} -o .config.o -c .config.c 2>&1"
  76                 OUT="${OUT}\n`echo "${CC} ${CFLAGS} ${1} -o .config.o -c .config.c"|sh 2>&1`"
  77                 test $? -eq 0 && {
  78                         echo " using: ${CFLAGS} ${1}" 1>&2
  79                         echo "${CFLAGS} ${1}"
  80                         exit 0
  81                 }
  82                 shift
  83                 i=$(($i+1))
  84         done
  85         echo "failed!" 1>&2
  86         echo 1>&2
  87         printf "The following compiler commands were executed:" 1>&2
  88         echo -e "${OUT}\n" 1>&2
  89         echo "This is a fatal error, configure is exiting!" 1>&2
  90         echo 1>&2
  91         echo "You can try to fix this by manually setting CFLAGS in the environment before" 1>&2
  92         echo "running configure. E.g.:" 1>&2
  93         echo "CFLAGS=-I/opt/somedir/include ./configure" 1>&2
  94         echo 1>&2
  95         exit 1
  96 }
  97
  98 trylink() {
  99         NPARMS=$#
 100         WHAT="${1}"
 101         shift
 102         printf "finding LDFLAGS for ${WHAT}... " 1>&2
 103         OUT="${OUT}\n${CC} -o .config .config.o ${LDFLAGS} 2>&1"
 104         OUT="${OUT}\n`echo "${CC} -o .config .config.o ${LDFLAGS}"|sh 2>&1`"
 105         test $? -eq 0 && {
 106                 echo " using: ${LDFLAGS}" 1>&2
 107                 echo "${LDFLAGS}"
 108                 exit 0
 109         }
 110         i=1
 111         while test $i -lt $NPARMS; do
 112                 OUT="${OUT}\n${CC} -o .config .config.o ${LDFLAGS} ${1} 2>&1"
 113                 OUT="${OUT}\n`echo "${CC} -o .config .config.o ${LDFLAGS} ${1}"|sh 2>&1`"
 114                 test $? -eq 0 && {
 115                         echo " using: ${LDFLAGS} ${1}" 1>&2
 116                         echo "${LDFLAGS} ${1}"
 117                         exit 0
 118                 }
 119                 shift
 120                 i=$(($i+1))
 121         done
 122         echo "failed!" 1>&2
 123         echo 1>&2
 124         printf "The following linker commands were executed:" 1>&2
 125         echo -e "${OUT}\n" 1>&2
 126         echo "This is a fatal error, configure is exiting!" 1>&2
 127         echo 1>&2
 128         echo "You can try to fix this by manually setting LDFLAGS in the environment before" 1>&2
 129         echo "running configure. E.g.:" 1>&2
 130         echo "LDFLAGS=-L/opt/somedir/lib ./configure" 1>&2
 131         echo 1>&2
 132         exit 1
 133 }
 134
 135 CC=`findprog "compiler" "${CC}" gcc cc icc` || exit
 136 INSTALL=`findprog "install" "${INSTALL}" install ginstall` || exit
 137
 138 test -n "$DEBUG" && myCFLAGS="-O2 -g" || myCFLAGS="-Os"
 139 CFLAGS="${CFLAGS} ${myCFLAGS} -Wall -Werror"
 140
 141 cat > .config.c << EOF
 142 #include <pci/pci.h>
 143 struct pci_access *pacc;
 144 int main(int argc, char *argv[])
 145 { pacc = pci_alloc(); return 0; }
 146 EOF
 147
 148 pc_CFLAGS="`pkg-config libpci --cflags 2>/dev/null`"
 149 pc_LDFLAGS="`pkg-config libpci --libs 2>/dev/null`"
 150 CFLAGS=`trycompile "libpci (from pciutils)" "${pc_CFLAGS}" "-I/usr/local/include"` || {
 151         rm -f .config.c
 152         exit 1
 153 }
 154 LDFLAGS=`trylink "libpci (from pciutils)" "${pc_LDFLAGS}" "-lpci -lz" "-L/usr/local/lib -lpci -lz" "-framework DirectHW -lpci -lz"` || {
 155         rm -f .config.c .config.o
 156         exit 1
 157 }
 158 rm -f .config.c .config.o .config
 159
 160 PREFIX="${PREFIX:-/usr/local}"
 161
 162 echo
 163 echo "configured using the following settings:"
 164 echo
 165 echo "VERSION=${VERSION}"
 166 echo "CC=${CC}"
 167 echo "CFLAGS=${CFLAGS}"
 168 echo "LDFLAGS=${LDFLAGS}"
 169 echo "INSTALL=${INSTALL}"
 170 echo "PREFIX=${PREFIX}"
 171 echo
 172 printf "creating Makefile..."
 173 echo "# This file was automatically generated by configure" > Makefile
 174 sed -e "s#@VERSION@#${VERSION}#g" \
 175         -e "s#@CC@#${CC}#g" \
 176         -e "s#@CFLAGS@#${CFLAGS}#g" \
 177         -e "s#@LDFLAGS@#${LDFLAGS}#g" \
 178         -e "s#@INSTALL@#${INSTALL}#g" \
 179         -e "s#@PREFIX@#${PREFIX}#g" \
 180         Makefile.in >> Makefile
 181 echo "  done"
 182 echo