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kc3-lang/automake/m4/AM_WITH_REGEX.m4

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  • Author : Tom Tromey
    Date : 1996-07-28 17:54:08
    Hash : 52aa7739
    Message : Include aclocal

  • m4/AM_WITH_REGEX.m4
  • ## --------------------------------- ##
    ## Check if --with-regex was given.  ##
    ## From Franc,ois Pinard             ##
    ## --------------------------------- ##
    
    # The idea is to distribute rx.[hc] and regex.[hc] together, for
    # a while.  The WITH_REGEX symbol (which should also be documented
    # in acconfig.h) is used to decide which of regex.h or rx.h should
    # be included in the application.  If `./configure --with-regex' is
    # given, the package will use the older regex.  Else, a check is
    # made to see if rx is already installed, as with newer Linux'es.
    # If not found, the package will use the rx from the distribution.
    # If found, the package will use the system's rx which, on Linux
    # at least, will result in a smaller executable file.
    
    AC_DEFUN(AM_WITH_REGEX,
    [AC_MSG_CHECKING(which of rx or regex is wanted)
    AC_ARG_WITH(regex,
    [  --with-regex            use older regex in lieu of GNU rx for matching],
    [if test "$withval" = yes; then
      ac_with_regex=1
      AC_MSG_RESULT(regex)
      AC_DEFINE(WITH_REGEX)
      LIBOBJS="$LIBOBJS regex.o"
    fi])
    if test -z "$ac_with_regex"; then
      AC_MSG_RESULT(rx)
      AC_CHECK_FUNC(re_rx_search, , [LIBOBJS="$LIBOBJS rx.o"])
    fi
    AC_SUBST(LIBOBJS)dnl
    ])