#
# Copyright (c) 1999-2001 Easysoft Ltd. All rights reserved.
#
# This script checks this Linux is OK for this product
#
# Calling format:
#
# install_check_linux long_product_name testlibflag
#
# long_product_name - name of product being installed (may contain spaces)
# testlibflag = if 1 runs ./testlib to check for libc5/glibc compatability
#               if 0 this check is not performed
# returns:
#
# 0 = success
# 1 = invalid command line
# 2 = environment variable not defined
# 3 = Linux kernel, libs not acceptable
#
# $Id: install_check_linux,v 1.4 2002/11/18 11:41:14 martin Exp $
#
# $Log: install_check_linux,v $
# Revision 1.4  2002/11/18 11:41:14  martin
# Echo of script name wrong.
#
# Revision 1.3  2001/04/04 10:10:01  martin
# Expected osrelease to be set - happened when linux-specific checks
# 	moved into separate script.
#
# Revision 1.2  2000/10/03 14:20:52  martin
# Added maths library call to testlib so we are now looking for
# 	hello4 not hello from a successful testlib. maths lib function
# 	allows us to check libm is correct version.
#
# Revision 1.1  2000/03/17 16:36:05  martin
# Initial revision
#
#
if [ "$ECHO" = "" ];then
  echo "error - ECHO not defined, expect it to be exported"
  exit 2
fi
#
# Check command line
#
cmdline_error=""
if [ $# -ne 2 ];then
  cmdlinestr="incorrect number of parameters"
  cmdline_error="1"
else
  PRODUCTLONG="$1"
  TESTLIBFLAG="$2"
fi
#
# If command line error
#
if [ "$cmdline_error" = "1" ];then
  $ECHO "Invalid command line, $cmdlinestr"
  $ECHO "Usage:"
  $ECHO "install_check_linux text_notice_file"
  exit 1
fi
#
#
#
osrelease=`uname -r`
$ECHO "Performing $platform-specific tests"
$ECHO "Operating System Version: $osrelease"
osmaj=`$ECHO "$osrelease" | cut -d. -f1`
osmin=`$ECHO "$osrelease" | cut -d. -f2`
#
#  Output warning for development kernels.
#
if [ "$osmaj" = "2" -a "$osmin" = "3" ];then
  cat <<EOF
****
WARNING:
You appear to be running a development kernel. Easysoft have not verified the
ODBC-ODBC Bridge works with development kernels although it is not believed
there is anything in the ODBC-ODBC Bridge which would prevent it working
with current development kernels.
****
EOF
fi
#
#  Output incompatible for 1.n kernels.
#
if [ "$osmaj" = "1" ];then
  cat <<EOF
****
WARNING:
You appear to be running a 1.n series Linux kernel. Easysoft have not verified
the $PRODUCTLONG works with these kernels and it is thought that they
probably will not. Please contact us at $SUPPORT_EMAIL if you
find otherwise.
****
EOF
fi
#
#  Try and run our testlib program which is linked with the same version
#  of libc5/glibc as the rest of the distribution. If it doesn't run the
#  user is probably trying to install the wrong version of product
#  on this machine.
#
if [ "$TESTLIBFLAG" = "1" ];then
  if [ -x ./testlib ]; then
    $ECHO "Testing this machine for libc5/glibc compatability."
    response=`./testlib`
    if [ \( $? -ne 0 \) -o \( "$response" != "hello4" \) ];then
      cat <<EOF
The test program (./testlib) failed to run correctly. The likely causes of this
are:

[1] You are installing the wrong version of the $PRODUCTLONG for this
    machine. e.g. installing a glibc version on a machine without glibc.
    The preceding output is likely to mention undefined symbols such as
    "__register_frame_info" in this case.

    If this is the case then you should download the other version of
    $PRODUCTLONG and install that.

[2] You are installing the $PRODUCTLONG on a machine with an incompatible
    version of glibc. e.g. installing the glibc version on a machine which
    has a version of glibc before 2.1.n.

    If this is the case then you will need to upgrade glibc to at least 2.1.n.

The installation is being aborted due to incompatible C runtime library.
EOF
      exit 99
    else
    $ECHO "Passed C runtime library check"
    fi
  else
    $ECHO "Runtime library check skipped due to missing distribution "
    $ECHO "testlib program."
  fi
fi
exit 0