build: expose napi_build_version variable

Expose `napi_build_version` to allow `node-gyp` to make it
available for building native addons.

Fixes: https://github.com/nodejs/node-gyp/issues/1745
Refs: https://github.com/nodejs/abi-stable-node/issues/371
PR-URL: https://github.com/nodejs/node/pull/27835
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gabriel Schulhof <gabriel.schulhof@intel.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/configure.py b/configure.py
index 6ecc33174b..4985200b28 100755
--- a/configure.py
+++ b/configure.py
@@ -34,6 +34,7 @@ import nodedownload
 # imports in tools/
 sys.path.insert(0, 'tools')
 import getmoduleversion
+import getnapibuildversion
 from gyp_node import run_gyp
 
 # imports in deps/v8/tools/node
@@ -1147,6 +1148,10 @@ def configure_node(o):
   else:
     o['variables']['node_target_type'] = 'executable'
 
+def configure_napi(output):
+  version = getnapibuildversion.get_napi_version()
+  output['variables']['napi_build_version'] = version
+
 def configure_library(lib, output):
   shared_lib = 'shared_' + lib
   output['variables']['node_' + shared_lib] = b(getattr(options, shared_lib))
@@ -1626,6 +1631,7 @@ if (options.dest_os):
 flavor = GetFlavor(flavor_params)
 
 configure_node(output)
+configure_napi(output)
 configure_library('zlib', output)
 configure_library('http_parser', output)
 configure_library('libuv', output)