[project @ 2000-09-05 10:16:40 by simonmar]

[ghc-hetmet.git] / mk / config.mk.in

diff --git a/mk/config.mk.in b/mk/config.mk.in
index 6ebd201..0e2896a 100644 (file)
--- a/mk/config.mk.in
+++ b/mk/config.mk.in
@@ -365,7 +365,12 @@ NoFibHcOpts = -O
 # this in build.mk or set your environment variable "TMPDIR" to point
 # to somewhere with more space.  (TMPDIR=. is a good choice).
 
-TMPDIR                 = /tmp
+# DEFAULT_TMPDIR isn't called TMPDIR because GNU make tends to
+# override the environment variable with the value of the make
+# variable when executing sub-processes, so setting the TMPDIR env var
+# would have no effect in the build tree.
+
+DEFAULT_TMPDIR         = /tmp
 
 # FPTOOLS_TOP: the top of the fptools hierarchy, absolute path.