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dnl define_dir.m4 |
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dnl http://autoconf-archive.cryp.to/ac_define_dir.html |
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# AC_DEFINE_DIR(VARNAME, DIR [, DESCRIPTION]) |
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# This macro sets VARNAME to the expansion of the DIR variable, taking care |
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# of fixing up ${prefix} and such. |
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# VARNAME is then offered as both an output variable and a C preprocessor |
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# symbol. |
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# Authors |
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# Stepan Kasal <kasal@ucw.cz>, Andreas Schwab <schwab@suse.de>, |
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# Guido Draheim <guidod@gmx.de>, Alexandre Oliva |
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# (Slightly modified -- Mikael Berthe) |
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AC_DEFUN([AC_DEFINE_DIR], [ |
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prefix_NONE= |
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exec_prefix_NONE= |
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test "x$prefix" = xNONE && prefix_NONE=yes && prefix=$ac_default_prefix |
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test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes && exec_prefix=$prefix |
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dnl In Autoconf 2.60, ${datadir} refers to ${datarootdir}, which in turn |
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dnl refers to ${prefix}. Thus we have to use `eval' twice. |
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ac_define_dir=`eval echo [$]$2` |
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ac_define_dir=`eval echo [$]ac_define_dir` |
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AC_SUBST($1, "$ac_define_dir") |
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ifelse($3, , |
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AC_DEFINE_UNQUOTED($1, "$ac_define_dir"), |
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AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3)) |
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test "$prefix_NONE" && prefix=NONE |
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test "$exec_prefix_NONE" && exec_prefix=NONE |
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]) |