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  • Committer: Monty Taylor
  • Date: 2008-11-21 01:28:19 UTC
  • mto: This revision was merged to the branch mainline in revision 594.
  • Revision ID: monty@inaugust.com-20081121012819-dxeqcc20iqqng77o
Configure cleanups. Added generic search_for_lib m4 macro.

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m4/search_for_lib.m4
 
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dnl SEARCH_FOR_LIB(LIB, FUNCTIONS, FUNCTION,
 
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dnl                [ACTION-IF-NOT-FOUND])
 
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AC_DEFUN([SEARCH_FOR_LIB],
 
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[
 
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  AS_VAR_PUSHDEF([with_lib], [with_lib$1])
 
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  AS_VAR_PUSHDEF([ac_header], [ac_cv_header_$3])
 
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  AS_VAR_PUSHDEF([libs_var], AS_TR_CPP([$1_LIBS]))
 
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  AS_VAR_PUSHDEF([cppflags_var], AS_TR_CPP([$1_CPPFLAGS]))
 
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  AS_VAR_PUSHDEF([have_lib], [ac_cv_have_$1])
 
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  AS_LITERAL_IF([$1],
 
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                [AS_VAR_PUSHDEF([ac_lib], [ac_cv_lib_$1_$2])],
 
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                [AS_VAR_PUSHDEF([ac_lib], [ac_cv_lib_$1''_$2])])
 
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  AC_ARG_WITH([lib$1],
 
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    [AS_HELP_STRING([--with-lib$1@<:@=DIR@:>@],
 
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       [Use lib$1 in DIR])],
 
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    [ AS_VAR_SET([with_lib], [$withval]) ],
 
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    [ AS_VAR_SET([with_lib], [yes]) ])
 
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  AS_IF([test AS_VAR_GET([with_lib]) = yes],[
 
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    AC_CHECK_HEADERS([$3])
 
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    AS_IF([test AS_VAR_GET([ac_header]) = no],
 
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      AC_MSG_WARN([Couldn't find $3. Try installing lib$3 development packages])
 
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      [$4])
 
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    my_save_LIBS="$LIBS"
 
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    LIBS=""
 
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    AC_CHECK_LIB($1, $2)
 
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    AS_VAR_SET([libs_var],[${LIBS}])
 
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    LIBS="${my_save_LIBS}"
 
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    AS_VAR_SET([cppflags_var],[""])
 
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    AS_IF([test AS_VAR_GET([ac_header]) = "$3" -a AS_VAR_GET([ac_lib]) = yes],
 
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      [AS_VAR_SET([have_lib],[yes])],
 
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      [AS_VAR_SET([have_lib],[no])
 
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       [$4]])
 
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  ],[
 
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    AC_MSG_CHECKING(for $1 in $withval)
 
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    if test -f $withval/$3 -a -f $withval/lib$1.a
 
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    then
 
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      owd=`pwd`
 
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      if cd $withval; then withval=`pwd`; cd $owd; fi
 
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      AS_VAR_SET([cppflags_var],[-I$withval])
 
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      AS_VAR_SET([libs_var],[-L$withval -l$1])
 
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      AS_VAR_SET([have_lib],[yes])
 
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    elif test -f $withval/include/$3 -a -f $withval/lib/lib$1.a; then
 
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      owd=`pwd`
 
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      if cd $withval; then withval=`pwd`; cd $owd; fi
 
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      AS_VAR_SET([cppflags_var],[-I$withval/include])
 
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      AS_VAR_SET([libs_var],[-L$withval/lib -l$1])
 
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      AS_VAR_SET([have_lib],[yes])
 
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    else
 
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      AC_MSG_WARN([$3 or lib$1.a not found in $withval])
 
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      AS_VAR_SET([have_lib],[no])
 
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      [$4]
 
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    fi
 
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  ])
 
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  AC_SUBST(LIBMEMCACHED_LIBS)
 
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  AC_SUBST(LIBMEMCACHED_CPPFLAGS)
 
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  AM_CONDITIONAL(HAVE_MEMCACHED,[test "$ac_cv_have_memcached" = "yes"])
 
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  AS_VAR_POPDEF([with_lib])
 
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  AS_VAR_POPDEF([ac_header])
 
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  AS_VAR_POPDEF([libs_var])
 
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  AS_VAR_POPDEF([cppflags_var])
 
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  AS_VAR_POPDEF([have_lib])
 
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  AS_VAR_POPDEF([ac_lib])
 
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])