~drizzle-trunk/libdrizzle/jenkins-Libdrizzle-107

# ===========================================================================

#       http://www.gnu.org/software/autoconf-archive/ax_with_prog.html

# ===========================================================================

#

# SYNOPSIS

#

#   AX_WITH_PROG([VARIABLE],[program],[VALUE-IF-NOT-FOUND],[PATH])

#

# DESCRIPTION

#

#   Locates an installed program binary, placing the result in the precious

#   variable VARIABLE. Accepts a present VARIABLE, then --with-program, and

#   failing that searches for program in the given path (which defaults to

#   the system path). If program is found, VARIABLE is set to the full path

#   of the binary; if it is not found VARIABLE is set to VALUE-IF-NOT-FOUND

#   if provided, unchanged otherwise.

#

#   A typical example could be the following one:

#

#     AX_WITH_PROG(PERL,perl)

#

#   NOTE: This macro is based upon the original AX_WITH_PYTHON macro from

#   Dustin J. Mitchell <dustin@cs.uchicago.edu>.

#

# LICENSE

#

#   Copyright (c) 2008 Francesco Salvestrini <salvestrini@users.sourceforge.net>

#   Copyright (c) 2008 Dustin J. Mitchell <dustin@cs.uchicago.edu>

#

#   Copying and distribution of this file, with or without modification, are

#   permitted in any medium without royalty provided the copyright notice

#   and this notice are preserved. This file is offered as-is, without any

#   warranty.

 

#serial 16

 

AC_DEFUN([AX_WITH_PROG],[

    AC_PREREQ([2.61])

 

    pushdef([VARIABLE],$1)

    pushdef([EXECUTABLE],$2)

    pushdef([VALUE_IF_NOT_FOUND],$3)

    pushdef([PATH_PROG],$4)

 

    AC_ARG_VAR(VARIABLE,Absolute path to EXECUTABLE executable)

 

    AS_IF(test -z "$VARIABLE",[

        AC_MSG_CHECKING(whether EXECUTABLE executable path has been provided)

        AC_ARG_WITH(EXECUTABLE,AS_HELP_STRING([--with-EXECUTABLE=[[[PATH]]]],absolute path to EXECUTABLE executable), [

            AS_IF([test "$withval" != yes && test "$withval" != no],[

                VARIABLE="$withval"

                AC_MSG_RESULT($VARIABLE)

            ],[

                VARIABLE=""

                AC_MSG_RESULT([no])

                AS_IF([test "$withval" != no], [

                  AC_PATH_PROG([]VARIABLE[],[]EXECUTABLE[],[]VALUE_IF_NOT_FOUND[],[]PATH_PROG[])

                ])

            ])

        ],[

            AC_MSG_RESULT([no])

            AC_PATH_PROG([]VARIABLE[],[]EXECUTABLE[],[]VALUE_IF_NOT_FOUND[],[]PATH_PROG[])

        ])

    ])

 

    popdef([PATH_PROG])

    popdef([VALUE_IF_NOT_FOUND])

    popdef([EXECUTABLE])

    popdef([VARIABLE])

])