make/autoconf/autogen.sh
changeset 48743 ba52fa7bbf14
parent 48742 364944ba4e2f
child 48744 8eb786b3d73d
child 49080 986c4945e3c3
equal deleted inserted replaced
48742:364944ba4e2f 48743:ba52fa7bbf14
     1 #!/bin/bash
       
     2 #
       
     3 # Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
       
     4 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       
     5 #
       
     6 # This code is free software; you can redistribute it and/or modify it
       
     7 # under the terms of the GNU General Public License version 2 only, as
       
     8 # published by the Free Software Foundation.
       
     9 #
       
    10 # This code is distributed in the hope that it will be useful, but WITHOUT
       
    11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
       
    12 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
       
    13 # version 2 for more details (a copy is included in the LICENSE file that
       
    14 # accompanied this code).
       
    15 #
       
    16 # You should have received a copy of the GNU General Public License version
       
    17 # 2 along with this work; if not, write to the Free Software Foundation,
       
    18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
       
    19 #
       
    20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
       
    21 # or visit www.oracle.com if you need additional information or have any
       
    22 # questions.
       
    23 #
       
    24 
       
    25 generate_configure_script() {
       
    26   # First create a header
       
    27   cat > $1 << EOT
       
    28 #!/bin/bash
       
    29 #
       
    30 # ##########################################################
       
    31 # ### THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT. ###
       
    32 # ##########################################################
       
    33 #
       
    34 EOT
       
    35   # Then replace "magic" variables in configure.ac and append the output
       
    36   # from autoconf. $2 is either cat (just a no-op) or a filter.
       
    37   cat $script_dir/configure.ac | sed -e "s|@DATE_WHEN_GENERATED@|$TIMESTAMP|" | \
       
    38       eval $2 | ${AUTOCONF} -W all -I$script_dir - >> $1
       
    39   rm -rf autom4te.cache
       
    40 }
       
    41 
       
    42 script_dir=`dirname $0`
       
    43 
       
    44 # Create a timestamp as seconds since epoch
       
    45 if test "x`uname -s`" = "xSunOS"; then
       
    46   TIMESTAMP=`date +%s`
       
    47   if test "x$TIMESTAMP" = "x%s"; then
       
    48     # date +%s not available on this Solaris, use workaround from nawk(1):
       
    49     TIMESTAMP=`nawk 'BEGIN{print srand()}'`
       
    50   fi
       
    51 else
       
    52   TIMESTAMP=`date +%s`
       
    53 fi
       
    54 
       
    55 AUTOCONF="`which autoconf 2> /dev/null | grep -v '^no autoconf in'`"
       
    56 
       
    57 if test "x${AUTOCONF}" = x; then
       
    58   echo "You need autoconf installed to be able to regenerate the configure script"
       
    59   echo "Error: Cannot find autoconf" 1>&2
       
    60   exit 1
       
    61 fi
       
    62 
       
    63 autoconf_version=`$AUTOCONF --version | head -1`
       
    64 echo "Using autoconf at ${AUTOCONF} [$autoconf_version]"
       
    65 
       
    66 echo "Generating generated-configure.sh"
       
    67 generate_configure_script "$script_dir/generated-configure.sh" 'cat'
       
    68 
       
    69 if test "x$CUSTOM_CONFIG_DIR" != "x"; then
       
    70   custom_hook=$CUSTOM_CONFIG_DIR/custom-hook.m4
       
    71   if test ! -e $custom_hook; then
       
    72     echo "CUSTOM_CONFIG_DIR set but $CUSTOM_CONFIG_DIR/custom-hook.m4 not present"
       
    73     echo "Error: Cannot continue" 1>&2
       
    74     exit 1
       
    75   fi
       
    76 
       
    77   # We have custom sources available; also generate configure script
       
    78   # with custom hooks compiled in.
       
    79   echo "Generating custom generated-configure.sh"
       
    80   generate_configure_script "$CUSTOM_CONFIG_DIR/generated-configure.sh" 'sed -e "s|#CUSTOM_AUTOCONF_INCLUDE|m4_include([$custom_hook])|"'
       
    81 fi