build: always regenerate version hash

Until now, it only used the hash from the previous configure run,
instead of trying to get the latest hash. The "old" build system did
this correctly - we just have to use the existing logic in version.sh.

Since waf supports separate build dirs, extend version.sh with an
argument for setting the path of version.h.

1 files changed, 7 insertions, 0 deletions

diff --git a/wscript b/wscript
index a5566d782f..68c06fb627 100644
--- a/wscript
+++ b/wscript
@@ -911,6 +911,12 @@ def configure(ctx):
 
     ctx.store_dependencies_lists()
 
+def __write_version__(ctx):
+    import subprocess
+    subprocess.call(["sh", "./version.sh",
+                     "--versionh=" + ctx.bldnode.abspath() + "/version.h"],
+                    cwd=ctx.srcnode.abspath())
+
 def build(ctx):
     if ctx.options.variant not in ctx.all_envs:
         from waflib import Errors
@@ -918,6 +924,7 @@ def build(ctx):
             'The project was not configured: run "waf --variant={0} configure" first!'
                 .format(ctx.options.variant))
     ctx.unpack_dependencies_lists()
+    __write_version__(ctx)
     ctx.load('wscript_build')
 
 def init(ctx):