| 1 | dnl Copyright 1996 by the Massachusetts Institute of Technology. |
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| 2 | dnl |
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| 3 | dnl Permission to use, copy, modify, and distribute this |
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| 4 | dnl software and its documentation for any purpose and without |
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| 5 | dnl fee is hereby granted, provided that the above copyright |
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| 6 | dnl notice appear in all copies and that both that copyright |
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| 7 | dnl notice and this permission notice appear in supporting |
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| 8 | dnl documentation, and that the name of M.I.T. not be used in |
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| 9 | dnl advertising or publicity pertaining to distribution of the |
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| 10 | dnl software without specific, written prior permission. |
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| 11 | dnl M.I.T. makes no representations about the suitability of |
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| 12 | dnl this software for any purpose. It is provided "as is" |
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| 13 | dnl without express or implied warranty. |
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| 14 | |
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| 15 | dnl This file provides local macros for packages which use POSIX |
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| 16 | dnl regexp support. The public macros are: |
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| 17 | dnl ATHENA_REGEXP |
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| 18 | dnl Sets REGEX_LIBS if rx library used; ensures POSIX |
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| 19 | dnl regexp support. |
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| 20 | dnl |
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| 21 | dnl All of the macros may extend CPPFLAGS and LDFLAGS to let the |
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| 22 | dnl compiler find the requested libraries. Put ATHENA_UTIL_COM_ERR |
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| 23 | dnl and ATHENA_UTIL_SS before ATHENA_AFS or ATHENA_AFS_REQUIRED; there |
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| 24 | dnl is a com_err library in the AFS libraries which requires -lutil. |
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| 25 | |
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| 26 | dnl ----- Regular expressions ----- |
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| 27 | |
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| 28 | AC_DEFUN([ATHENA_REGEXP], |
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| 29 | [AC_ARG_WITH(regex, |
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| 30 | [ --with-regex=PREFIX Use installed regex library], |
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| 31 | [regex="$withval"], [regex=no]) |
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| 32 | if test "$regex" != no; then |
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| 33 | if test "$regex" != yes; then |
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| 34 | CPPFLAGS="$CPPFLAGS -I$regex/include" |
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| 35 | LDFLAGS="$LDFLAGS -L$regex/lib" |
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| 36 | fi |
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| 37 | AC_SEARCH_LIBS(regcomp, regex, REGEX_LIBS=-lregex, |
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| 38 | [AC_MSG_ERROR(regex library not found)]) |
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| 39 | else |
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| 40 | AC_CHECK_FUNC(regcomp, :, |
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| 41 | [AC_MSG_ERROR(can't find POSIX regexp support)]) |
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| 42 | fi |
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| 43 | AC_SUBST(REGEX_LIBS)]) |
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