1*4882a593Smuzhiyun# =========================================================================== 2*4882a593Smuzhiyun# http://autoconf-archive.cryp.to/ac_define_dir.html 3*4882a593Smuzhiyun# =========================================================================== 4*4882a593Smuzhiyun# 5*4882a593Smuzhiyun# SYNOPSIS 6*4882a593Smuzhiyun# 7*4882a593Smuzhiyun# AC_DEFINE_DIR(VARNAME, DIR [, DESCRIPTION]) 8*4882a593Smuzhiyun# 9*4882a593Smuzhiyun# DESCRIPTION 10*4882a593Smuzhiyun# 11*4882a593Smuzhiyun# This macro sets VARNAME to the expansion of the DIR variable, taking 12*4882a593Smuzhiyun# care of fixing up ${prefix} and such. 13*4882a593Smuzhiyun# 14*4882a593Smuzhiyun# VARNAME is then offered as both an output variable and a C preprocessor 15*4882a593Smuzhiyun# symbol. 16*4882a593Smuzhiyun# 17*4882a593Smuzhiyun# Example: 18*4882a593Smuzhiyun# 19*4882a593Smuzhiyun# AC_DEFINE_DIR([DATADIR], [datadir], [Where data are placed to.]) 20*4882a593Smuzhiyun# 21*4882a593Smuzhiyun# LAST MODIFICATION 22*4882a593Smuzhiyun# 23*4882a593Smuzhiyun# 2008-04-12 24*4882a593Smuzhiyun# 25*4882a593Smuzhiyun# COPYLEFT 26*4882a593Smuzhiyun# 27*4882a593Smuzhiyun# Copyright (c) 2008 Stepan Kasal <kasal@ucw.cz> 28*4882a593Smuzhiyun# Copyright (c) 2008 Andreas Schwab <schwab@suse.de> 29*4882a593Smuzhiyun# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> 30*4882a593Smuzhiyun# Copyright (c) 2008 Alexandre Oliva 31*4882a593Smuzhiyun# 32*4882a593Smuzhiyun# Copying and distribution of this file, with or without modification, are 33*4882a593Smuzhiyun# permitted in any medium without royalty provided the copyright notice 34*4882a593Smuzhiyun# and this notice are preserved. 35*4882a593Smuzhiyun 36*4882a593SmuzhiyunAC_DEFUN([AC_DEFINE_DIR], [ 37*4882a593Smuzhiyun prefix_NONE= 38*4882a593Smuzhiyun exec_prefix_NONE= 39*4882a593Smuzhiyun test "x$prefix" = xNONE && prefix_NONE=yes && prefix=$ac_default_prefix 40*4882a593Smuzhiyun test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes && exec_prefix=$prefix 41*4882a593Smuzhiyundnl In Autoconf 2.60, ${datadir} refers to ${datarootdir}, which in turn 42*4882a593Smuzhiyundnl refers to ${prefix}. Thus we have to use `eval' twice. 43*4882a593Smuzhiyun eval ac_define_dir="\"[$]$2\"" 44*4882a593Smuzhiyun eval ac_define_dir="\"$ac_define_dir\"" 45*4882a593Smuzhiyun AC_SUBST($1, "$ac_define_dir") 46*4882a593Smuzhiyun AC_DEFINE_UNQUOTED($1, "$ac_define_dir", [$3]) 47*4882a593Smuzhiyun test "$prefix_NONE" && prefix=NONE 48*4882a593Smuzhiyun test "$exec_prefix_NONE" && exec_prefix=NONE 49*4882a593Smuzhiyun]) 50