[project @ 2000-07-06 16:31:45 by simonpj]

[ghc-hetmet.git] / ghc / mk / version.mk

diff --git a/ghc/mk/version.mk b/ghc/mk/version.mk
index 8b467a7..8e172cc 100644 (file)
--- a/ghc/mk/version.mk
+++ b/ghc/mk/version.mk
@@ -16,14 +16,28 @@
 #
 # Ghc project settings:
 # 
-# *ProjectVersion    is treated as a *string*
-# *ProjectVersionInt is treated as an *integer* (for cpp defines)
+# ProjectVersion    is treated as a *string*
+# ProjectVersionInt is treated as an *integer* (for cpp defines)
+
+# Versioning scheme: A.BB.C
+#         A: major version, any number of digits
+#         B: minor version, two digits padded with leading zeros
+#        C: patchlevel, one digit, omitted if zero.
+#
+# ProjectVersionInt does *not* contain the patchlevel (rationale: this
+# figure is used for conditional compilations, and library interfaces
+# etc. are not supposed to change between patchlevels).
+#
+# The ProjectVersionInt is included in interface files, and GHC
+# checks that it's reading interface generated by the same ProjectVersion
+# as itself. It does this even though interface file syntax may not 
+# change between versions.  Rationale: calling conventions or other 
+# random .o-file stuff might change even if the .hi syntax doesn't
 
 ProjectName       = The Glorious Glasgow Haskell Compilation System
 ProjectNameShort  = ghc
-ProjectVersion    = 3.03
-ProjectVersionInt = 303
-ProjectPatchLevel = 0
+ProjectVersion    = 4.09
+ProjectVersionInt = 409
 
 #
 # Optionally, you can get the compiler driver to check the
@@ -35,7 +49,29 @@ ProjectPatchLevel = 0
 # version - one (semi-valid) reason for having them separate is that
 # object files produced by different versions of the compiler need
 # not be incompatible..
-HscMajorVersion=33
+HscMajorVersion=40
 HscMinorVersion=0
 CcMajorVersion=36
 CcMinorVersion=1
+
+# Interface file version (hi-boot files only)
+#
+# A GHC built with HscIfaceFileVersion=n will look for 
+#      M.hi-boot-n, and only then for 
+#      M.hi-boot.
+# (It'll be happy with the latter if the former doesn't exist.)
+#
+# This variable is used ONLY for hi-boot files.
+# Its only purpose is to allow you to have a single directory
+# with multiple .hi-boot files for the same module, each 
+# corresponding to a different version of GHC.  
+#
+# It is propagated to hsc like this:
+#      * This file is included in ghc/Makefile
+#      * ghc/Makefile has a main/Constants.lhs-specific flag
+#              -DHscIfaceFileVersion=$(HscIfaceFileVersion)
+#      * main/Constants.lhs defines 
+#              interfaceFileFormatVersion = HscIfaceFileVersion
+# So there!
+
+HscIfaceFileVersion=5