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| author | Herbert Valerio Riedel <hvr@gnu.org> | 2014-10-05 22:35:22 +0200 |
|---|---|---|
| committer | Herbert Valerio Riedel <hvr@gnu.org> | 2014-10-05 22:36:18 +0200 |
| commit | 3549c952b535803270872adaf87262f2df0295a4 (patch) | |
| tree | 6352a317b7999b8544e68a7acdc2e190339215d6 /aclocal.m4 | |
| parent | 2a8ea4745d6ff79d6ce17961a64d9013243fc3c6 (diff) | |
| download | haskell-3549c952b535803270872adaf87262f2df0295a4.tar.gz | |
Implement `MIN_VERSION_GLASGOW_HASKELL()` macro
This exposes the `cProjectPatchLevel{1,2}` value at the CPP level to
allow it to be used in CPP conditionals. Concretely, GHC 7.10.2.20150623
would result in
#define __GLASGOW_HASKELL__ 710
#define __GLASGOW_HASKELL_PATCHLEVEL1__ 2
#define __GLASGOW_HASKELL_PATCHLEVEL2__ 20150623
while GHC 7.10.3 results in
#define __GLASGOW_HASKELL__ 710
#define __GLASGOW_HASKELL_PATCHLEVEL1__ 3
and finally GHC 7.9.20141009 results in
#define __GLASGOW_HASKELL__ 709
#define __GLASGOW_HASKELL_PATCHLEVEL1__ 20141009
As it's error-prone to properly express CPP conditionals for testing GHC
multi-component versions, a new macro `MIN_VERSION_GLASGOW_HASKELL()` is
provided (also via the new CPP include file `ghcversion.h`)
Finally, in order to make it easier to define the new CPP macro
`MIN_VERSION_GLASGOW_HASKELL()`, a new default-included
`include/ghcversion.h` is used for the new CPP definitions.
Reviewed By: ekmett, austin, #ghc
Differential Revision: https://phabricator.haskell.org/D66
Diffstat (limited to 'aclocal.m4')
| -rw-r--r-- | aclocal.m4 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4 index 62cf6fe4e9..a98691ef57 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -1604,6 +1604,13 @@ AC_SUBST([ProjectVersionInt]) # The project patchlevel is zero unless stated otherwise test -z "$ProjectPatchLevel" && ProjectPatchLevel=0 +# Save split version of ProjectPatchLevel +ProjectPatchLevel1=`echo $ProjectPatchLevel | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1/'` +ProjectPatchLevel2=`echo $ProjectPatchLevel | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3/'` + +AC_SUBST([ProjectPatchLevel1]) +AC_SUBST([ProjectPatchLevel2]) + # Remove dots from the patch level; this allows us to have versions like 6.4.1.20050508 ProjectPatchLevel=`echo $ProjectPatchLevel | sed 's/\.//'` |