/usr/lib/libreoffice/program/gengal is in libreoffice-dev 1:5.1.2-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92  | #!/bin/sh
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This file incorporates work covered by the following license notice:
#
#   Licensed to the Apache Software Foundation (ASF) under one or more
#   contributor license agreements. See the NOTICE file distributed
#   with this work for additional information regarding copyright
#   ownership. The ASF licenses this file to you under the Apache
#   License, Version 2.0 (the "License"); you may not use this file
#   except in compliance with the License. You may obtain a copy of
#   the License at http://www.apache.org/licenses/LICENSE-2.0 .
#
# enable file locking
SAL_ENABLE_FILE_LOCKING=1
export SAL_ENABLE_FILE_LOCKING
# resolve installation directory
sd_cwd=`pwd`
sd_res=$0
while [ -h "$sd_res" ] ; do
    cd "`dirname "$sd_res"`"
    sd_basename=`basename "$sd_res"`
    sd_res=`ls -l "$sd_basename" | sed "s/.*$sd_basename -> //g"`
done
cd "`dirname "$sd_res"`"
sd_prog=`pwd`
cd "$sd_cwd"
# this is a temporary hack until we can live with the default search paths
case "`uname -s`" in
NetBSD|OpenBSD|FreeBSD|DragonFly)
    LD_LIBRARY_PATH=$sd_prog${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
    JAVA_HOME=$(javaPathHelper -h libreoffice-java 2> /dev/null)
    export LD_LIBRARY_PATH
    if [ -n "${JAVA_HOME}" ]; then
        export JAVA_HOME
    fi
    ;;
AIX)
    LIBPATH=$sd_prog${LIBPATH:+:${LIBPATH}}
    export LIBPATH
    ;;
esac
#collect all bootstrap variables specified on the command line
#so that they can be passed as arguments to javaldx later on
for arg in $@
do
  case "$arg" in
       -env:*) BOOTSTRAPVARS=$BOOTSTRAPVARS" ""$arg";;
       -v) VERBOSE=true;;
       --verbose) VERBOSE=true;;
  esac
done
# extend the ld_library_path for java: javaldx checks the sofficerc for us
if [ -x "$sd_prog/javaldx" ] ; then
    my_path=`"$sd_prog/javaldx" $BOOTSTRAPVARS \
        "-env:INIFILENAME=vnd.sun.star.pathname:$sd_prog/redirectrc"`
    if [ -n "$my_path" ] ; then
        sd_platform=`uname -s`
        case $sd_platform in
          AIX)
            LIBPATH=$my_path${LIBPATH:+:$LIBPATH}
            export LIBPATH
            ;;
          *)
            LD_LIBRARY_PATH=$my_path${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
            export LD_LIBRARY_PATH
            ;;
        esac
    fi
fi
unset XENVIRONMENT
# uncomment line below to disable anti aliasing of fonts
# SAL_ANTIALIAS_DISABLE=true; export SAL_ANTIALIAS_DISABLE
# uncomment line below if you encounter problems starting soffice on your system
# SAL_NO_XINITTHREADS=true; export SAL_NO_XINITTHREADS
# execute binary
exec "$sd_prog/gengal.bin" "$@" \
    "-env:INIFILENAME=vnd.sun.star.pathname:$sd_prog/redirectrc"
 |