configure

#!/bin/sh

#  configure for app_swift -- A Cepstral Swift TTS engine interface
# 
#  Copyright (C) 2013 - 2016, Jeremy Kister
# 
#  This program is free software, distributed under the
#  terms of the GNU General Public License Version 2. See
#  the LICENSE file at the top of the source tree for more
#  information.

usage() {
    cat <<__EOU__
'configure' configures app_swift to adapt to many kinds of systems.

Usage: [VAR=VALUE]... ./configure [OPTION]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
    --help          this help message
    --swiftdir      directory to swift [/opt/swift]
    --includedir    asterisk include directory [/usr/include]
    --libdir        asterisk library directory [/usr/lib]
    --vardir        asterisk var lib directory [/var/lib]
    --sysconfdir    asterisk etc directory [/etc]


Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>

Use these variables to override the choices made by 'configure' or to help
it to find libraries and programs with nonstandard names/locations.

Report bugs to <https://github.com/dmsessions/app_swift/issues>

__EOU__
}

while getopts ':h-' OPTION ; do
    case "$OPTION" in
        h)
            usage
            exit
            ;;
        -)
            [ $OPTIND -ge 1 ] && optind=`expr $OPTIND - 1` || optind=$OPTIND
            eval OPTION="\$$optind"
            OPTARG=`echo $OPTION | cut -d'=' -f2`
            OPTION=`echo $OPTION | cut -d'=' -f1`
            case "$OPTION" in
                --swiftdir)
                    SWIFT_DIR=$OPTARG
                    ;;
                --includedir)
                    INC_DIR=$OPTARG
                    ;;
                --vardir)
                    VAR_DIR=$OPTARG
                    ;;
                --libdir)
                    LIB_DIR=$OPTARG
                    ;;
                --sysconfdir)
                    CNF_DIR=$OPTARG
                    ;;
                --help)
                    usage
                    exit
                    ;;
                *)
                    echo "invalid argument: $OPTION"
                    echo "use ./configure --help"
                    exit 1
                    ;;
            esac
            OPTIND=1
            shift
            ;;
        *)
            echo "invalid argument: $OPTION"
            echo "use ./configure --help"
            exit 1
            ;;
    esac
done

CC=${CC-gcc}
echo "checking $CC..."
echo 'int main(void){return 0;}' > astest.c
if [ $? -gt 0 ] ; then
    echo "Could not test compiler!"
    exit 1
fi

$CC -o astest astest.c
code=$?
rm astest astest.c
if [ $code -gt 0 ] ; then
    echo "problem with compiler/$CC."
    exit 1
fi

echo "checking swift..."
SWIFT_VER=`swift --version | grep "Cepstral Swift " - | sed -e "s/Cepstral\ Swift\ //" | awk -F. '{printf "%01d", $1}' -`
echo "checking asterisk..."
# erase certified word from "Asterisk certified/13.1-cert8"
AST_FULL_VER=`asterisk -V | awk '{ print $2 }' - | sed -e "#certified/##"`

if [ ! $SWIFT_VER ] ; then
    echo "problem with swift.  check PATH?"
    exit 1
fi
if [ ! $AST_FULL_VER ] ; then
    echo "problem with asterisk.  check PATH?"
    exit 1
fi

SOLINK="-shared -Xlinker -x"
if [ $CC = gcc ] ; then
    CC_VER=`$CC -dumpversion`
    set -- `echo $CC_VER | awk -F\. '{ print $1 " " $2 " " $3 }' -`
    CC_MAJOR=$1
    CC_MINOR=$2
    CC_PATCH=$3
    if [ $CC_MAJOR -gt 4 ] || [ $CC_MAJOR -eq 4 -a $CC_MINOR -ge 6 ] ; then
        # http://www.j-mb.de/blog/tag/undefined-symbol-swift_port_close/
        SOLINK="$SOLINK -Wl,--no-as-needed"
    fi
fi

if [ "`echo $AST_FULL_VER | awk -F\. '{ print $1 }' -`" -eq 1 ] ; then
    AST_MAJOR_VER=`echo $AST_FULL_VER | awk -F\. '{ print $1 "_" $2 }' -`
else
    AST_MAJOR_VER=`echo $AST_FULL_VER | awk -F\. '{ print $1 }' -`
fi

SWIFT_DIR=${SWIFT_DIR-/opt/swift}
VAR_DIR=${VAR_DIR-/var/lib}
LIB_DIR=${LIB_DIR-/usr/lib}
INC_DIR=${INC_DIR-/usr/include}
CNF_DIR=${CNF_DIR-/etc}

echo "creating Makefile"
cat Makefile.in | sed -e \
 "s/%%CC%%/$CC/g; \
  s/%%SOLINK%%/$SOLINK/g; \
  s/%%SWIFT_VER%%/$SWIFT_VER/g; \
  s/%%AST_FULL_VER%%/$AST_FULL_VER/g; \
  s/%%AST_MAJOR_VER%%/$AST_MAJOR_VER/g; \
  s!%%SWIFT_DIR%%!$SWIFT_DIR!g; \
  s!%%VAR_DIR%%!$VAR_DIR!g; \
  s!%%LIB_DIR%%!$LIB_DIR!g; \
  s!%%INC_DIR%%!$INC_DIR!g; \
  s!%%CNF_DIR%%!$CNF_DIR!g;" \
 > Makefile


echo "  ********************************************************"
echo "  *  Now run 'make' to compile app_swift                 *"
echo "  ********************************************************"