blob: 356f121d23fa2d99c5c1fb2ab0ddfaa935a1b8f1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
# -----------------------------------------------------------------------------
#
# (c) 2010 The University of Glasgow
#
# This file is part of the GHC build system.
#
# To understand how the build system works and how to modify it, see
# http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
# http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
#
# -----------------------------------------------------------------------------
# A helpful little debug macro. Call it from a macro like this:
#
# $(call trace, this-macro($1,$2,$3))
#
# And invoke the build system with TRACE=1 to turn on tracing.
define trace
$$(if $(TRACE),$$(warning $1),)
endef
|
