build/win32/pc_base.py: Allow custom options

Some packages might have some parts that are built for certain build
configs, meaning that they could have .pc files of their own, such as
Pango, where PangoFT2 is optionally built.  Allow such an option if
needed.

Also remove some trailing whitespaces.

1 files changed, 6 insertions, 5 deletions

diff --git a/build/win32/pc_base.py b/build/win32/pc_base.py
index 80f9884..da10560 100644
--- a/build/win32/pc_base.py
+++ b/build/win32/pc_base.py
@@ -26,17 +26,18 @@ class BasePCItems:
         self.top_srcdir = self.srcdir + '\\..\\..'
         self.version = ''
 
-    def setup(self, argv):
-        parser = argparse.ArgumentParser(description='Setup basic .pc file info')
+    def setup(self, argv, parser=None):
+        if parser is None:
+            parser = argparse.ArgumentParser(description='Setup basic .pc file info')
         parser.add_argument('--prefix', help='prefix of the installed library',
                             required=True)
-        parser.add_argument('--exec-prefix', 
+        parser.add_argument('--exec-prefix',
                             help='prefix of the installed programs, \
                                   if different from the prefix')
-        parser.add_argument('--includedir', 
+        parser.add_argument('--includedir',
                             help='includedir of the installed library, \
                                   if different from ${prefix}/include')
-        parser.add_argument('--libdir', 
+        parser.add_argument('--libdir',
                             help='libdir of the installed library, \
                                   if different from ${prefix}/lib')
         parser.add_argument('--version', help='Version of the package',