Adds missing dependencies on compiled Python extensions.

The programs using the compiled Python extensions weren't specifying
the extensions as dependencies.  This sometimes caused flaky failures
due to (parallel) build timing, and also caused "scons python-versions"
from scratch to fail consistently.  Since the dependencies aren't
discovered automatically, they need to be added explicitly.

TESTED:
"scons python-versions" now succeeds when run from a clean state.

1 files changed, 9 insertions, 0 deletions

diff --git a/SConstruct b/SConstruct
index fded8a3a..bd280990 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1399,6 +1399,7 @@ if not env['python']:
 else:
     # installed python programs
     python_progs = ["gegps", "gpscat", "gpsfake", "gpsprof"]
+    python_deps = {'gpscat': 'packet'}
 
     # python misc helpers and stuff
     python_misc = [
@@ -1412,6 +1413,7 @@ else:
         "test_xgps_deps.py",
         "valgrind-audit.py"
     ]
+    python_deps['test_maidenhead.py'] = 'clienthelpers'
 
     python_manpages = {
         "gegps.1": "gps.xml",
@@ -1458,6 +1460,8 @@ else:
             "xgps.1": "gps.xml",
             "xgpsspeed.1": "gps.xml",
         })
+        python_deps['xgps'] = 'clienthelpers'
+
     python_modules = Glob('gps/*.py')
 
     # Build Python binding
@@ -1541,6 +1545,11 @@ else:
             )
         python_compiled_libs[ext] = python_env.SharedLibrary(
             ext, python_objects[ext])
+
+    # Make sure we know about compiled dependencies
+    for prog, dep in python_deps.items():
+        env.Depends(prog, python_compiled_libs['gps' + os.sep + dep])
+
     # Make PEP 241 Metadata 1.0.
     # Why not PEP 314 (V1.1) or PEP 345 (V1.2)?
     # V1.2 and V1.2 require a Download-URL to an installable binary