diff -up rpm-4.6.0/scripts/brp-python-bytecompile.validate rpm-4.6.0/scripts/brp-python-bytecompile
--- rpm-4.6.0/scripts/brp-python-bytecompile.validate	2009-02-20 20:31:30.000000000 +0200
+++ rpm-4.6.0/scripts/brp-python-bytecompile	2009-02-20 20:31:37.000000000 +0200
@@ -20,7 +20,12 @@ if [ -z "$depth" -o "$depth" -le "1" ]; 
 fi
 
 # Generate normal (.pyc) byte-compiled files.
-$python    -c 'import compileall; compileall.compile_dir("'"$RPM_BUILD_ROOT"'", '"$depth"', "/", 1)' > /dev/null
+$python    -c 'import compileall, sys; sys.exit (not compileall.compile_dir("'"$RPM_BUILD_ROOT"'", '"$depth"', "/", 1, quiet=1))'
+if [ $? != 0 ]; then
+  # One or more of the files has a syntax error.
+  exit 1
+fi
+
 
 # Generate optimized (.pyo) byte-compiled files.
 $python -O -c 'import compileall; compileall.compile_dir("'"$RPM_BUILD_ROOT"'", '"$depth"', "/", 1)' > /dev/null