From e89a59263762c1b625b1b054784b73112fb440a3 Mon Sep 17 00:00:00 2001
From: Anders Svensson <anders@erlang.org>
Date: Tue, 18 Oct 2011 14:10:53 +0200
Subject: Dumb down opt/release targets to make 3.80

---
 lib/diameter/src/Makefile | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/diameter/src/Makefile b/lib/diameter/src/Makefile
index ea1e43875e..15196bc002 100644
--- a/lib/diameter/src/Makefile
+++ b/lib/diameter/src/Makefile
@@ -42,6 +42,9 @@ RELSYSDIR = $(RELEASE_PATH)/lib/diameter-$(VSN)
 EBIN   = ../ebin
 INCDIR = ../include
 
+# Dumbed down to make 3.80. In 3.81 and later it's just $(realpath $(EBIN)).
+ABS_EBIN := $(shell cd $(EBIN) && pwd)
+
 # Where make should look for dependencies.
 VPATH = .:base:compiler:transport:gen
 
@@ -103,7 +106,7 @@ ERL_COMPILE_FLAGS += \
 	+'{attribute,insert,app_vsn,$(APP_VSN)}' \
 	+warn_export_vars \
 	+warn_unused_vars \
-	-pa $(realpath $(EBIN)) \
+	-pa $(ABS_EBIN) \
 	-I $(INCDIR) \
 	-I gen
 # -pa is to be able to include_lib from the include directory: the
@@ -228,7 +231,7 @@ depend.mk: depend.sed $(MODULES:%=%.erl) Makefile
 .PHONY: $(TARGET_DIRS:%/=%) $(TARGET_DIRS:%/=release_src_%)
 
 # ----------------------------------------------------
-# Targets using secondary expansion
+# Targets using secondary expansion (make >= 3.81)
 # ----------------------------------------------------
 
 .SECONDEXPANSION:
-- 
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