https://origsvn.digium.com/svn/asterisk/branches/1.4
........
r44125 | russell | 2006-10-01 14:30:06 -0400 (Sun, 01 Oct 2006) | 6 lines
Fix a problem that cuased AST_DATA_DIR in defaults.h to be empty. The cause is
that since ASTDATADIR is explicitly exported using "export ASTDATADIR" at the
top of the Makefile, make no longer considers the variable "undefined", so the
Makefile can't use ?= to set ASTDATADIR if not yet set.
(issue #8063, reported by akohlsmith, fixed by me)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@44126
65c4cc65-6c06-0410-ace0-
fbb531ad65f3
ASTVARLIBDIR=$(localstatedir)/lib/asterisk
endif
endif
-ASTDATADIR?=$(ASTVARLIBDIR)
+ifeq ($(ASTDATADIR),)
+ ASTDATADIR:=$(ASTVARLIBDIR)
+endif
# Asterisk.conf is located in ASTETCDIR or by using the -C flag
# when starting Asterisk