config/glibcversion.sh

   1 #!/bin/sh
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  38
  39 ##############################################################################
  40 ##
  41 ## Name:                glibcversion.sh - Print __GLIBC__ version if gnu libc 2 is
  42 ##              found.
  43 ##
  44 ## Description: This script is needed by the mozilla build system.  It needs
  45 ##              to determine whether the current platform (mostly the
  46 ##              various linux "platforms") are based on the gnu libc2.  This
  47 ##              information is later used in mozilla to determine whether
  48 ##              gnu libc 2 specific "features" need to be handled, such
  49 ##              as broken locales.
  50 ##
  51 ## Author:              Ramiro Estrugo <ramiro@netscape.com>
  52 ##
  53 ##############################################################################
  54
  55 ##
  56 ## Command Line Flags Supported:
  57 ##
  58 ##  -g  | --is-glibc2:                          Print True/False if detected __GLIBC__.
  59 ##
  60 ##  -v  | --print-version:                      Print value of __GLIBC__ if found, or none.
  61 ##
  62 ##  -o  | --set-object-name:            Set object name for current system.
  63 ##  -cc | --set-compiler:                       Set compiler for building test program.
  64 ##
  65
  66
  67 ##
  68 ## Constants
  69 ##
  70 GLIBC_PROG_PREFIX=./get_glibc_info
  71
  72 ##
  73 ## Defaults
  74 ##
  75 GLIBC_PRINT_IS_GLIBC2=False
  76
  77 GLIBC_PRINT_VERSION=False
  78
  79 GLIBC_OBJECT_NAME=`uname`-`uname -r`
  80 GLIBC_CC=cc
  81
  82 function glibc_usage()
  83 {
  84 echo
  85 echo "Usage:   `basename $0` [options]"
  86 echo
  87 echo "  -g,  --is-glibc2:          Print True/False if detected __GLIBC__."
  88 echo
  89 echo "  -v,  --print-version:      Print value of __GLIBC__ if found, or none."
  90 echo
  91 echo "  -o,  --set-object-name:    Set object name for current system."
  92 echo "  -cc, --set-compiler:       Set compiler for building test program."
  93 echo
  94 echo "  -h,  --help:               Print this blurb."
  95 echo
  96 echo "The default is '-v' if no options are given."
  97 echo
  98 }
  99
 100 ##
 101 ## Parse the command line
 102 ##
 103 while [ "$*" ]; do
 104     case $1 in
 105         -h | --help)
 106             shift
 107             glibc_usage
 108                         exit 0
 109             ;;
 110
 111         -g | --is-glibc2)
 112             shift
 113             GLIBC_PRINT_IS_GLIBC2=True
 114             ;;
 115
 116         -v | --print-version)
 117             shift
 118             GLIBC_PRINT_VERSION=True
 119             ;;
 120
 121         -o | --set-object-name)
 122             shift
 123             GLIBC_OBJECT_NAME="$1"
 124             shift
 125             ;;
 126
 127         -cc | --set-compiler)
 128             shift
 129             GLIBC_CC="$1"
 130             shift
 131             ;;
 132
 133         -*)
 134             echo "`basename $0`: invalid option '$1'"
 135             shift
 136             glibc_usage
 137                         exit 0
 138             ;;
 139     esac
 140 done
 141
 142 ##
 143 ## Motif info program name
 144 ##
 145 GLIBC_PROG="$GLIBC_PROG_PREFIX"_"$GLIBC_OBJECT_NAME"
 146 GLIBC_SRC="$GLIBC_PROG_PREFIX"_"$GLIBC_OBJECT_NAME.c"
 147
 148 ##
 149 ## Cleanup the dummy test source/program
 150 ##
 151 function glibc_cleanup()
 152 {
 153         true
 154
 155 #       rm -f $GLIBC_PROG
 156 #       rm -f $GLIBC_SRC
 157
 158 }
 159
 160 glibc_cleanup
 161
 162 if [ ! -f $GLIBC_SRC ]
 163 then
 164 cat << EOF > $GLIBC_SRC
 165 #include <stdio.h>
 166
 167 int main(int argc,char ** argv)
 168 {
 169 #ifdef  __GLIBC__
 170         fprintf(stdout,"%d\n",__GLIBC__);
 171 #else
 172         fprintf(stdout,"none\n");
 173 #endif
 174
 175         return 0;
 176 }
 177 EOF
 178 fi
 179
 180 if [ ! -f $GLIBC_SRC ]
 181 then
 182         echo
 183         echo "Could not create test program source $GLIBC_SRC."
 184         echo
 185
 186         glibc_cleanup
 187
 188         exit
 189 fi
 190
 191 ##
 192 ## Compile the dummy test program if needed
 193 ##
 194 if [ ! -x $GLIBC_PROG ]
 195 then
 196         $GLIBC_CC -o $GLIBC_PROG $GLIBC_SRC
 197 fi
 198
 199 if [ ! -x $GLIBC_PROG ]
 200 then
 201         echo
 202         echo "Could not create test program $GLIBC_PROG."
 203         echo
 204
 205         glibc_cleanup
 206
 207         exit
 208 fi
 209
 210 ##
 211 ## Execute the dummy test program
 212 ##
 213 GLIBC_PROG_OUTPUT=`$GLIBC_PROG`
 214
 215 ##
 216 ## -g | --is-glibc2
 217 ##
 218 if [ "$GLIBC_PRINT_IS_GLIBC2" = "True" ]
 219 then
 220         if [ "$GLIBC_PROG_OUTPUT" = "2" ]
 221         then
 222                 echo True
 223         else
 224                 echo False
 225         fi
 226
 227         glibc_cleanup
 228
 229         exit 0
 230 fi
 231
 232 echo $GLIBC_PROG_OUTPUT
 233
 234 glibc_cleanup