# javaexec.m4 serial 2 (gettext-0.13)
dnl Copyright (C) 2001-2003 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

# Prerequisites of javaexec.sh.
# gt_JAVAEXEC or gt_JAVAEXEC(testclass, its-directory)
# Sets HAVE_JAVAEXEC to nonempty if javaexec.sh will work.

AC_DEFUN([gt_JAVAEXEC],
[
  AC_MSG_CHECKING([for Java virtual machine])
  AC_EGREP_CPP(yes, [
#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
  yes
#endif
], CLASSPATH_SEPARATOR=';', CLASSPATH_SEPARATOR=':')
  HAVE_JAVAEXEC=1
  if test -n "$JAVA"; then
    ac_result="$JAVA"
  else
    pushdef([AC_MSG_CHECKING],[:])dnl
    pushdef([AC_CHECKING],[:])dnl
    pushdef([AC_MSG_RESULT],[:])dnl
    AC_CHECK_PROG(HAVE_GIJ_IN_PATH, gij, yes)
    AC_CHECK_PROG(HAVE_JAVA_IN_PATH, java, yes)
    AC_CHECK_PROG(HAVE_JRE_IN_PATH, jre, yes)
    AC_CHECK_PROG(HAVE_JVIEW_IN_PATH, jview, yes)
    popdef([AC_MSG_RESULT])dnl
    popdef([AC_CHECKING])dnl
    popdef([AC_MSG_CHECKING])dnl
    ifelse([$1], , , [
      save_CLASSPATH="$CLASSPATH"
      CLASSPATH="$2"${CLASSPATH+"$CLASSPATH_SEPARATOR$CLASSPATH"}
      ])
    export CLASSPATH
    if test -n "$HAVE_GIJ_IN_PATH" \
       && gij --version >/dev/null 2>/dev/null \
       ifelse([$1], , , [&& gij $1 >/dev/null 2>/dev/null]); then
      HAVE_GIJ=1
      ac_result="gij"
    else
      if test -n "$HAVE_JAVA_IN_PATH" \
         && java -version >/dev/null 2>/dev/null \
         ifelse([$1], , , [&& java $1 >/dev/null 2>/dev/null]); then
        HAVE_JAVA=1
        ac_result="java"
      else
        if test -n "$HAVE_JRE_IN_PATH" \
           && (jre >/dev/null 2>/dev/null || test $? = 1) \
           ifelse([$1], , , [&& jre $1 >/dev/null 2>/dev/null]); then
          HAVE_JRE=1
          ac_result="jre"
        else
          if test -n "$HAVE_JVIEW_IN_PATH" \
             && (jview -? >/dev/null 2>/dev/null || test $? = 1) \
             ifelse([$1], , , [&& jview $1 >/dev/null 2>/dev/null]); then
            HAVE_JVIEW=1
            ac_result="jview"
          else
            HAVE_JAVAEXEC=
            ac_result="no"
          fi
        fi
      fi
    fi
    ifelse([$1], , , [
      CLASSPATH="$save_CLASSPATH"
    ])
  fi
  AC_MSG_RESULT([$ac_result])
  AC_SUBST(JAVA)
  AC_SUBST(CLASSPATH)
  AC_SUBST(CLASSPATH_SEPARATOR)
  AC_SUBST(HAVE_GIJ)
  AC_SUBST(HAVE_JAVA)
  AC_SUBST(HAVE_JRE)
  AC_SUBST(HAVE_JVIEW)
])