From bcb963a235d017cdd21ee9cac6c110dbd10c9401 Mon Sep 17 00:00:00 2001
From: Cary R <cygcary@yahoo.com>
Date: Fri, 11 Nov 2011 16:22:56 -0800
Subject: [PATCH] Fix Cygwin compile problem (replace abs() call with ?:

This patch fixes a compile problem in Cygwin where there are two
definitions for abs() that do not match so the C++ code doesn't know
which one to call. To avoid the whole mess replace the call to abs()
with the appropriate ?: construct.
---
 vhdlpp/expression_emit.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/vhdlpp/expression_emit.cc b/vhdlpp/expression_emit.cc
index ed81e3b07..96e4dec4d 100644
--- a/vhdlpp/expression_emit.cc
+++ b/vhdlpp/expression_emit.cc
@@ -94,7 +94,8 @@ int ExpAggregate::emit_array_(ostream&out, Entity*ent, Architecture*arc, const V
 	    rc_lsb = rang.lsb()->evaluate(ent, arc, use_lsb);
 
 	    if (rc_msb && rc_lsb) {
-		  int asize = abs(use_msb - use_lsb) + 1;
+		  int asize = (use_msb >= use_lsb) ? (use_msb - use_lsb) + 1 :
+		                                     (use_lsb - use_msb) + 1;
 		  out << "{" << asize << "{";
 		  errors += aggregate_[0].expr->emit(out, ent, arc);
 		  out << "}}";