From ad6496e426f81bd1519dfbd9cc092298d6dae8c0 Mon Sep 17 00:00:00 2001
From: Dmitri Bogomolov <4glitch@gmail.com>
Date: Wed, 19 Feb 2020 18:00:10 +0200
Subject: [PATCH] Make it possible to build and use ext on windows

 - change ext attributes and c source for windows allowing to build pyd
 - remove trailing slashes in data_files
 - try to load pyd in proofofwork by ctypes.PyDLL()
---
 setup.py                      | 13 ++++++++++---
 src/bitmsghash/bitmsghash.cpp |  5 +++++
 src/proofofwork.py            |  8 +++++++-
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/setup.py b/setup.py
index 77ec81c8..d0d733bc 100644
--- a/setup.py
+++ b/setup.py
@@ -59,6 +59,13 @@ if __name__ == "__main__":
         libraries=['pthread', 'crypto'],
     )
 
+    if sys.platform[:3] == 'win':
+        bitmsghash.libraries = ['libeay32', 'ws2_32']
+        openssl_dir = os.getenv('OPENSSL_DIR')
+        if openssl_dir:
+            bitmsghash.library_dirs = [os.path.join(openssl_dir, 'lib')]
+            bitmsghash.include_dirs = [os.path.join(openssl_dir, 'include')]
+
     installRequires = ['six']
     packages = [
         'pybitmessage',
@@ -90,11 +97,11 @@ if __name__ == "__main__":
             packages += ['pybitmessage.fallback.umsgpack']
 
     data_files = [
-        ('share/applications/',
+        ('share/applications',
             ['desktop/pybitmessage.desktop']),
-        ('share/icons/hicolor/scalable/apps/',
+        ('share/icons/hicolor/scalable/apps',
             ['desktop/icons/scalable/pybitmessage.svg']),
-        ('share/icons/hicolor/24x24/apps/',
+        ('share/icons/hicolor/24x24/apps',
             ['desktop/icons/24x24/pybitmessage.png'])
     ]
 
diff --git a/src/bitmsghash/bitmsghash.cpp b/src/bitmsghash/bitmsghash.cpp
index 24775475..b65c3265 100644
--- a/src/bitmsghash/bitmsghash.cpp
+++ b/src/bitmsghash/bitmsghash.cpp
@@ -163,3 +163,8 @@ extern "C" EXPORT unsigned long long BitmessagePOW(unsigned char * starthash, un
 	free(threaddata);
 	return successval;
 }
+
+// workaround for building setuptools ext on Windows
+// https://stackoverflow.com/questions/34689210
+void initbitmsghash() {} //Python 2.7
+void PyInit_bitmsghash() {} //Python 3.5
diff --git a/src/proofofwork.py b/src/proofofwork.py
index f170aa5f..b2842462 100644
--- a/src/proofofwork.py
+++ b/src/proofofwork.py
@@ -298,7 +298,13 @@ def init():
             bitmsglib = 'bitmsghash64.dll'
         try:
             # MSVS
-            bso = ctypes.WinDLL(os.path.join(paths.codePath(), "bitmsghash", bitmsglib))
+            libfile = os.path.join(paths.codePath(), "bitmsghash", bitmsglib)
+            if os.path.isfile(libfile):
+                bso = ctypes.WinDLL(libfile)
+            else:
+                bitmsglib = 'bitmsghash.pyd'
+                libfile = os.path.join(paths.codePath(), "bitmsghash", bitmsglib)
+                bso = ctypes.PyDLL(libfile)
             logger.info("Loaded C PoW DLL (stdcall) %s", bitmsglib)
             bmpow = bso.BitmessagePOW
             bmpow.restype = ctypes.c_ulonglong