From a5d9803f307d10371b93417304b557bec472eca8 Mon Sep 17 00:00:00 2001
From: Uwe Hermann <uwe@hermann-uwe.de>
Date: Sat, 29 Sep 2018 18:55:20 +0200
Subject: [PATCH] sigrok-cross-mingw: Fix broken Windows 64bit decoding (bug
 #1195).

---
 cross-compile/mingw/pyconfig.patch     | 37 ++++++++++++++++++++++++++
 cross-compile/mingw/sigrok-cross-mingw |  5 ++++
 2 files changed, 42 insertions(+)
 create mode 100644 cross-compile/mingw/pyconfig.patch

diff --git a/cross-compile/mingw/pyconfig.patch b/cross-compile/mingw/pyconfig.patch
new file mode 100644
index 0000000..a5ffb1c
--- /dev/null
+++ b/cross-compile/mingw/pyconfig.patch
@@ -0,0 +1,37 @@
+Fix for bug #1195.
+
+Patch taken from the MSYS2 MINGW-packages repo, filename
+0110-MINGW-translate-gcc-internal-defines-to-python-platf.patch,
+but applied to pyconfig.h instead of pyport.h.
+
+Without this, Py_ssize_t ends up being 4 on 64bit Windows (where it
+should be 8) and all kinds of weird issues happen as a result,
+including 4GB allocations for no apparent reason, and none of the
+protocol decoders working (at all).
+
+The respective Py_ssize_t related code is in pyport.h.
+
+--- pyconfig.h.orig	2018-09-29 18:06:33.625204450 +0200
++++ pyconfig.h	2018-09-29 18:34:09.165488139 +0200
+@@ -1,6 +1,21 @@
+ #ifndef Py_CONFIG_H
+ #define Py_CONFIG_H
+ 
++#ifdef __MINGW32__
++/* Translate GCC[mingw*] platform specific defines to those
++ * used in python code.
++ */
++#if !defined(MS_WIN64) && defined(_WIN64)
++#  define MS_WIN64
++#endif
++#if !defined(MS_WIN32) && defined(_WIN32)
++#  define MS_WIN32
++#endif
++#if !defined(MS_WINDOWS) && defined(MS_WIN32)
++#  define MS_WINDOWS
++#endif
++#endif /* __MINGW32__*/
++
+ /* pyconfig.h.  NOT Generated automatically by configure.
+ 
+ This is a manually maintained version used for the Watcom,
diff --git a/cross-compile/mingw/sigrok-cross-mingw b/cross-compile/mingw/sigrok-cross-mingw
index 8330406..81b03e6 100755
--- a/cross-compile/mingw/sigrok-cross-mingw
+++ b/cross-compile/mingw/sigrok-cross-mingw
@@ -106,6 +106,11 @@ mkdir -p $PREFIX
 $WGET http://www.sigrok.org/tmp/Python34_$TARGET.tar.gz -O $PREFIX/Python34.tar.gz
 tar xzf $PREFIX/Python34.tar.gz -C $PREFIX
 
+# Fix for bug #1195.
+if [ $TARGET = "x86_64" ]; then
+	patch -p1 $PREFIX/Python34/include/pyconfig.h < ../pyconfig.patch
+fi
+
 # Create a dummy python3.pc file so that pkg-config finds Python 3.
 mkdir -p $PREFIX/lib/pkgconfig
 cat >$PREFIX/lib/pkgconfig/python3.pc <<EOF 
-- 
2.30.2