build: use proper python interpreter

Make configure start gyp with the same python interpreter that is used to
run configure itself.

Fixes an issue where configure fails with a SyntaxError because the user
has multiple python binaries on his $PATH and the default one is too old.

1 files changed, 4 insertions, 3 deletions

diff --git a/configure b/configure
index df18ba5e31b..460b3f11004 100755
--- a/configure
+++ b/configure
@@ -400,7 +400,8 @@ write('config.mk', "# Do not edit. Generated by the configure script.\n" +
   ("BUILDTYPE=%s\n" % ('Debug' if options.debug else 'Release')))
 
 if os.name == 'nt':
-  subprocess.call(['python', 'tools/gyp_node', '-f', 'msvs',
-                                               '-G', 'msvs_version=2010'])
+  gyp_args = ['-f', 'msvs', '-G', 'msvs_version=2010']
 else:
-  subprocess.call(['tools/gyp_node', '-f', 'make'])
+  gyp_args = ['-f', 'make']
+
+subprocess.call([sys.executable, 'tools/gyp_node'] + gyp_args)