Visual Studio builds: Move project files to win32/

It was suggested that the project files be moved here as we don't actually
need to go two directory layers from $(srcroot), and would help us to
standardize on things in the future across the board.

win32/pc_base.py

@@ -0,0 +1,124 @@
+#!/usr/bin/python
+#
+# Simple utility script to generate the basic info
+# needed in a .pc (pkg-config) file, used especially
+# for introspection purposes
+
+# This can be used in various projects where
+# there is the need to generate .pc files,
+# and is copied from GLib's $(srcroot)/build/win32
+
+# Author: Fan, Chun-wei
+# Date: March 10, 2016
+
+import os
+import sys
+import argparse
+
+class BasePCItems:
+    def __init__(self):
+        self.base_replace_items = {}
+        self.exec_prefix = ''
+        self.includedir = ''
+        self.libdir = ''
+        self.prefix = ''
+        self.srcdir = os.path.dirname(__file__)
+        self.top_srcdir = self.srcdir + '\\..'
+        self.version = ''
+
+    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',
+                            help='prefix of the installed programs, \
+                                  if different from the prefix')
+        parser.add_argument('--includedir',
+                            help='includedir of the installed library, \
+                                  if different from ${prefix}/include')
+        parser.add_argument('--libdir',
+                            help='libdir of the installed library, \
+                                  if different from ${prefix}/lib')
+        parser.add_argument('--version', help='Version of the package',
+                            required=True)
+        args = parser.parse_args()
+
+        self.version = args.version
+
+        # check whether the prefix and exec_prefix are valid
+        if not os.path.exists(args.prefix):
+            raise SystemExit('Specified prefix \'%s\' is invalid' % args.prefix)
+
+        # use absolute paths for prefix
+        self.prefix = os.path.abspath(args.prefix).replace('\\','/')
+
+        # check and setup the exec_prefix
+        if getattr(args, 'exec_prefix', None) is None:
+            exec_prefix_use_shorthand = True
+            self.exec_prefix = '${prefix}'
+        else:
+            if args.exec_prefix.startswith('${prefix}'):
+                exec_prefix_use_shorthand = True
+                input_exec_prefix = args.prefix + args.exec_prefix[len('${prefix}'):]
+            else:
+                exec_prefix_use_shorthand = False
+                input_exec_prefix = args.exec_prefix
+            if not os.path.exists(input_exec_prefix):
+                raise SystemExit('Specified exec_prefix \'%s\' is invalid' %
+                                  args.exec_prefix)
+            if exec_prefix_use_shorthand is True:
+                self.exec_prefix = args.exec_prefix.replace('\\','/')
+            else:
+                self.exec_prefix = os.path.abspath(input_exec_prefix).replace('\\','/')
+
+        # check and setup the includedir
+        if getattr(args, 'includedir', None) is None:
+            self.includedir = '${prefix}/include'
+        else:
+            if args.includedir.startswith('${prefix}'):
+                includedir_use_shorthand = True
+                input_includedir = args.prefix + args.includedir[len('${prefix}'):]
+            else:
+                if args.includedir.startswith('${exec_prefix}'):
+                    includedir_use_shorthand = True
+                    input_includedir = input_exec_prefix + args.includedir[len('${exec_prefix}'):]
+                else:
+                    includedir_use_shorthand = False
+                    input_includedir = args.includedir
+            if not os.path.exists(input_includedir):
+                raise SystemExit('Specified includedir \'%s\' is invalid' %
+                                  args.includedir)
+            if includedir_use_shorthand is True:
+                self.includedir = args.includedir.replace('\\','/')
+            else:
+                self.includedir = os.path.abspath(input_includedir).replace('\\','/')
+
+        # check and setup the libdir
+        if getattr(args, 'libdir', None) is None:
+            self.libdir = '${prefix}/lib'
+        else:
+            if args.libdir.startswith('${prefix}'):
+                libdir_use_shorthand = True
+                input_libdir = args.prefix + args.libdir[len('${prefix}'):]
+            else:
+                if args.libdir.startswith('${exec_prefix}'):
+                    libdir_use_shorthand = True
+                    input_libdir = input_exec_prefix + args.libdir[len('${exec_prefix}'):]
+                else:
+                    libdir_use_shorthand = False
+                    input_libdir = args.libdir
+            if not os.path.exists(input_libdir):
+                raise SystemExit('Specified libdir \'%s\' is invalid' %
+			                      args.libdir)
+            if libdir_use_shorthand is True:
+                self.libdir = args.libdir.replace('\\','/')
+            else:
+                self.libdir = os.path.abspath(input_libdir).replace('\\','/')
+
+        # setup dictionary for replacing items in *.pc.in
+        self.base_replace_items.update({'@VERSION@': self.version})
+        self.base_replace_items.update({'@prefix@': self.prefix})
+        self.base_replace_items.update({'@exec_prefix@': self.exec_prefix})
+        self.base_replace_items.update({'@libdir@': self.libdir})
+        self.base_replace_items.update({'@includedir@': self.includedir})