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ac_define_dir

Synopsis

AC_DEFINE_DIR(VARNAME, DIR [, DESCRIPTION])

Description

This macro sets VARNAME to the expansion of the DIR variable, taking care of fixing up ${prefix} and such.

VARNAME is then offered as both an output variable and a C preprocessor symbol.

Example: 

   AC_DEFINE_DIR([DATADIR], [datadir], [Where data are placed to.])

Authors

Stepan Kasal <kasal@ucw.cz>, Andreas Schwab <schwab@suse.de>, Guido U. Draheim <guidod@gmx.de>, and Alexandre Oliva.

Last Modified

2006-10-13

M4 Source Code 

AC_DEFUN([AC_DEFINE_DIR], [
  prefix_NONE=
  exec_prefix_NONE=
  test "x$prefix" = xNONE && prefix_NONE=yes && prefix=$ac_default_prefix
  test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes && exec_prefix=$prefix
dnl In Autoconf 2.60, ${datadir} refers to ${datarootdir}, which in turn
dnl refers to ${prefix}.  Thus we have to use `eval' twice.
  eval ac_define_dir="\"[$]$2\""
  eval ac_define_dir="\"$ac_define_dir\""
  AC_SUBST($1, "$ac_define_dir")
  AC_DEFINE_UNQUOTED($1, "$ac_define_dir", [$3])
  test "$prefix_NONE" && prefix=NONE
  test "$exec_prefix_NONE" && exec_prefix=NONE
])

License

Copyright © 2006 Stepan Kasal <kasal@ucw.cz>
Copyright © 2006 Andreas Schwab <schwab@suse.de>
Copyright © 2006 Guido U. Draheim <guidod@gmx.de>
Copyright © 2006 Alexandre Oliva

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.