diff options
| author |  Jani Nikula <jani@nikula.org> | 2013-11-06 21:01:41 +0200 |
|---|---|---|
| committer |  David Bremner <david@tethera.net> | 2013-11-07 19:15:06 -0400 |
| commit | 060990db14bf3481c461959230549291a89e5c50 (patch) | |
| tree | 7a75f58330aee936330d998d69b11fe39f035623 /lib | |
| parent | 3cf926463e654b0d9c968e80c82e6f0f8e101aa9 (diff) | |
lib: add library version check macro
There have been some plans for making build incompatible changes to
the library API. This is inconvenient, but it is much more so without
a way to easily conditional build against multiple versions of
notmuch.
The macro has been lifted from glib.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/notmuch.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/notmuch.h b/lib/notmuch.h index 82fd5998..6c3942d3 100644 --- a/lib/notmuch.h +++ b/lib/notmuch.h @@ -41,6 +41,30 @@ NOTMUCH_BEGIN_DECLS #define TRUE 1 #endif +#define NOTMUCH_MAJOR_VERSION 0 +#define NOTMUCH_MINOR_VERSION 17 +#define NOTMUCH_MICRO_VERSION 0 + +/* + * Check the version of the notmuch library being compiled against. + * + * Return true if the library being compiled against is of the + * specified version or above. For example: + * + * #if NOTMUCH_CHECK_VERSION(0, 18, 0) + * (code requiring notmuch 0.18 or above) + * #endif + * + * NOTMUCH_CHECK_VERSION has been defined since version 0.17.0; you + * can use #if !defined(NOTMUCH_CHECK_VERSION) to check for versions + * prior to that. + */ +#define NOTMUCH_CHECK_VERSION (major, minor, micro) \ + (NOTMUCH_MAJOR_VERSION > (major) || \ + (NOTMUCH_MAJOR_VERSION == (major) && NOTMUCH_MINOR_VERSION > (minor)) || \ + (NOTMUCH_MAJOR_VERSION == (major) && NOTMUCH_MINOR_VERSION == (minor) && \ + NOTMUCH_MICRO_VERSION >= (micro))) + typedef int notmuch_bool_t; /* Status codes used for the return values of most functions. |