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thodg/libiconv/m4/progtest.m4

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  • Author : Bruno Haible
    Date : 2003-04-08 11:05:39
    Hash : 9c83e7cc
    Message : Update the autoconf macros, mostly from GNU gettext.

  • m4/progtest.m4
  • # progtest.m4 serial 3 (gettext-0.12)
    dnl Copyright (C) 1996-2003 Free Software Foundation, Inc.
    dnl This file is free software, distributed under the terms of the GNU
    dnl General Public License.  As a special exception to the GNU General
    dnl Public License, this file may be distributed as part of a program
    dnl that contains a configuration script generated by Autoconf, under
    dnl the same distribution terms as the rest of that program.
    dnl
    dnl This file can can be used in projects which are not available under
    dnl the GNU General Public License or the GNU Library General Public
    dnl License but which still want to provide support for the GNU gettext
    dnl functionality.
    dnl Please note that the actual code of the GNU gettext library is covered
    dnl by the GNU Library General Public License, and the rest of the GNU
    dnl gettext package package is covered by the GNU General Public License.
    dnl They are *not* in the public domain.
    
    dnl Authors:
    dnl   Ulrich Drepper <drepper@cygnus.com>, 1996.
    
    # Search path for a program which passes the given test.
    
    dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
    dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
    AC_DEFUN([AM_PATH_PROG_WITH_TEST],
    [
    # Prepare PATH_SEPARATOR.
    # The user is always right.
    if test "${PATH_SEPARATOR+set}" != set; then
      echo "#! /bin/sh" >conf$$.sh
      echo  "exit 0"   >>conf$$.sh
      chmod +x conf$$.sh
      if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
        PATH_SEPARATOR=';'
      else
        PATH_SEPARATOR=:
      fi
      rm -f conf$$.sh
    fi
    
    # Find out how to test for executable files. Don't use a zero-byte file,
    # as systems may use methods other than mode bits to determine executability.
    cat >conf$$.file <<_ASEOF
    #! /bin/sh
    exit 0
    _ASEOF
    chmod +x conf$$.file
    if test -x conf$$.file >/dev/null 2>&1; then
      ac_executable_p="test -x"
    else
      ac_executable_p="test -f"
    fi
    rm -f conf$$.file
    
    # Extract the first word of "$2", so it can be a program name with args.
    set dummy $2; ac_word=[$]2
    AC_MSG_CHECKING([for $ac_word])
    AC_CACHE_VAL(ac_cv_path_$1,
    [case "[$]$1" in
      [[\\/]]* | ?:[[\\/]]*)
        ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
        ;;
      *)
        ac_save_IFS="$IFS"; IFS=$PATH_SEPARATOR
        for ac_dir in ifelse([$5], , $PATH, [$5]); do
          IFS="$ac_save_IFS"
          test -z "$ac_dir" && ac_dir=.
          for ac_exec_ext in '' $ac_executable_extensions; do
            if $ac_executable_p "$ac_dir/$ac_word$ac_exec_ext"; then
              if [$3]; then
                ac_cv_path_$1="$ac_dir/$ac_word$ac_exec_ext"
                break 2
              fi
            fi
          done
        done
        IFS="$ac_save_IFS"
    dnl If no 4th arg is given, leave the cache variable unset,
    dnl so AC_PATH_PROGS will keep looking.
    ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
    ])dnl
        ;;
    esac])dnl
    $1="$ac_cv_path_$1"
    if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then
      AC_MSG_RESULT([$]$1)
    else
      AC_MSG_RESULT(no)
    fi
    AC_SUBST($1)dnl
    ])