From: Simon Marlow <marlowsd@gmail.com>
Date: Thu, 14 May 2009 09:36:36 +0000 (+0000)
Subject: don't rebuild the whole of stage 1 just because the date has changed
X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=commitdiff_plain;h=2a4517655a45e798cc4716be9b7d0abc3c900887

don't rebuild the whole of stage 1 just because the date has changed
---

diff --git a/compiler/ghc.mk b/compiler/ghc.mk
index ce5e545..22459b5 100644
--- a/compiler/ghc.mk
+++ b/compiler/ghc.mk
@@ -404,6 +404,16 @@ compiler/stage3/package-data.mk : compiler/ghc.mk
 
 compiler_PACKAGE = ghc
 
+# The version of the GHC package changes every day, since the
+# patchlevel is the current date.  We don't want to force
+# recompilation of the entire compiler when this happens, so for stage
+# 1 we omit the patchlevel from the version number.  For stage 2 we
+# have to include the patchlevel since this is the package we install,
+# however.
+define compiler_PACKAGE_MAGIC
+compiler_stage1_VERSION = $(subst .$(ProjectPatchLevel),,$(ProjectVersion))
+endef
+
 # haddocking only happens for stage2
 compiler_stage1_DO_HADDOCK = NO
 compiler_stage3_DO_HADDOCK = NO