AC_DEFINE_DIR(VARNAME, DIR [, DESCRIPTION])
, 
, 
, 
, 

2006-10-13

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

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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. Users of this software should generally follow the principles of the MIT License includings its disclaimer.

cryp.to ac-archive's Miscellaneous (released)

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.])

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
])