From 595312935326883da433d9bdaf9e3bcf2b58d27b Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Wed, 18 Apr 2012 13:17:07 -0700
Subject: [PATCH] build: print error message when gyp is not installed

---
 gyp_uv | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/gyp_uv b/gyp_uv
index 225c9768..14a3cae7 100755
--- a/gyp_uv
+++ b/gyp_uv
@@ -8,7 +8,11 @@ script_dir = os.path.dirname(__file__)
 uv_root = os.path.normpath(script_dir)
 
 sys.path.insert(0, os.path.join(uv_root, 'build', 'gyp', 'pylib'))
-import gyp
+try:
+  import gyp
+except ImportError:
+  print('You need to install gyp in build/gyp first. See the README.')
+  sys.exit(42)
 
 # Directory within which we want all generated files (including Makefiles)
 # to be written.