From 3502aba685be0bcfa95a42e53c183e13b14f4254 Mon Sep 17 00:00:00 2001
From: Tony Butler <spudz76@gmail.com>
Date: Sat, 10 Nov 2018 00:34:59 -0700
Subject: [PATCH] Patches to enable compilation under Windows with MSYS2 or
 Cygwin64 Most features unsupported, use these cmake options:
 `-DCUDA_ENABLE=OFF -DOpenCL_ENABLE=OFF -DOpenSSL_ENABLE=OFF
 -DMICROHTTPD_ENABLE=OFF -DHWLOC_ENABLE=OFF`

---
 CMakeLists.txt                                    | 12 ++++++++----
 xmrstak/backend/cpu/crypto/cryptonight_common.cpp |  6 ++++++
 xmrstak/backend/cpu/minethd.cpp                   |  7 +++++++
 xmrstak/http/httpd.cpp                            |  3 +++
 xmrstak/http/httpd.hpp                            |  3 +++
 xmrstak/jconf.cpp                                 |  5 +++++
 xmrstak/misc/executor.cpp                         |  5 ++++-
 7 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b714ee0ce..f2b6dd865 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,5 @@
-project(xmr-stak)
-
 cmake_minimum_required(VERSION 3.4.0)
+project(xmr-stak)
 
 # enforce C++11
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -444,8 +443,13 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
 endif()
 
 if(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
-    set(CMAKE_CXX_FLAGS "-Wl,-z,noexecstack ${CMAKE_CXX_FLAGS}")
-    set(CMAKE_C_FLAGS "-Wl,-z,noexecstack ${CMAKE_C_FLAGS}")
+    if(CMAKE_RC_COMPILER MATCHES "windres") # lame hack to detect Cygwin
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -U_WIN32 -U__USE_W32_SOCKETS -D_POSIX_C_SOURCE=200112")
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -U_WIN32 -U__USE_W32_SOCKETS -D_POSIX_C_SOURCE=200112")
+    else()
+        set(CMAKE_CXX_FLAGS "-Wl,-z,noexecstack ${CMAKE_CXX_FLAGS}")
+        set(CMAKE_C_FLAGS "-Wl,-z,noexecstack ${CMAKE_C_FLAGS}")
+    endif()
 endif()
 
 # activate static libgcc and libstdc++ linking
diff --git a/xmrstak/backend/cpu/crypto/cryptonight_common.cpp b/xmrstak/backend/cpu/crypto/cryptonight_common.cpp
index ee1ff2386..04497b0d8 100644
--- a/xmrstak/backend/cpu/crypto/cryptonight_common.cpp
+++ b/xmrstak/backend/cpu/crypto/cryptonight_common.cpp
@@ -259,6 +259,12 @@ cryptonight_ctx* cryptonight_alloc_ctx(size_t use_fast_mem, size_t use_mlock, al
 	ptr->long_state = (uint8_t*)mmap(NULL, hashMemSize, PROT_READ | PROT_WRITE,
 		MAP_PRIVATE | MAP_ANON, -1, 0);
 #else
+#ifndef MAP_HUGETLB
+#define MAP_HUGETLB 0
+#endif
+#ifndef MAP_POPULATE
+#define MAP_POPULATE 0
+#endif
 	ptr->long_state = (uint8_t*)mmap(NULL, hashMemSize, PROT_READ | PROT_WRITE,
 		MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, -1, 0);
 #endif
diff --git a/xmrstak/backend/cpu/minethd.cpp b/xmrstak/backend/cpu/minethd.cpp
index 975f2d4a2..65a452a40 100644
--- a/xmrstak/backend/cpu/minethd.cpp
+++ b/xmrstak/backend/cpu/minethd.cpp
@@ -51,6 +51,13 @@
 #include <thread>
 #include <bitset>
 
+#ifdef __CYGWIN__
+#define _WIN32
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#endif
+
 #ifdef _WIN32
 #include <windows.h>
 #else
diff --git a/xmrstak/http/httpd.cpp b/xmrstak/http/httpd.cpp
index ed9abc2bc..661c1ca9f 100644
--- a/xmrstak/http/httpd.cpp
+++ b/xmrstak/http/httpd.cpp
@@ -23,6 +23,9 @@
 
 #ifndef CONF_NO_HTTPD
 
+#ifdef __CYGWIN__
+#include <strings.h>
+#endif
 
 #include "httpd.hpp"
 #include "webdesign.hpp"
diff --git a/xmrstak/http/httpd.hpp b/xmrstak/http/httpd.hpp
index fe534f038..bb9a7e8ae 100644
--- a/xmrstak/http/httpd.hpp
+++ b/xmrstak/http/httpd.hpp
@@ -1,6 +1,9 @@
 #pragma once
 
 #include <stdlib.h>
+#ifdef __CYGWIN__
+#include <sys/select.h>
+#endif
 
 struct MHD_Daemon;
 struct MHD_Connection;
diff --git a/xmrstak/jconf.cpp b/xmrstak/jconf.cpp
index 2a2dc8dbc..23ee7e6ba 100644
--- a/xmrstak/jconf.cpp
+++ b/xmrstak/jconf.cpp
@@ -37,12 +37,17 @@
 #include <numeric>
 #include <algorithm>
 
+#ifdef __CYGWIN__
+#include <strings.h>
+#include <cpuid.h>
+#else
 #ifdef _WIN32
 #define strcasecmp _stricmp
 #include <intrin.h>
 #else
 #include <cpuid.h>
 #endif
+#endif
 
 
 using namespace rapidjson;
diff --git a/xmrstak/misc/executor.cpp b/xmrstak/misc/executor.cpp
index a303b34cd..c66f21d55 100644
--- a/xmrstak/misc/executor.cpp
+++ b/xmrstak/misc/executor.cpp
@@ -46,6 +46,9 @@
 #include <time.h>
 
 
+#ifdef __CYGWIN__
+#include <strings.h>
+#endif //__CYGWIN__
 #ifdef _WIN32
 #define strncasecmp _strnicmp
 #endif // _WIN32
@@ -470,7 +473,7 @@ void executor::on_miner_result(size_t pool_id, job_result& oResult)
 	}
 }
 
-#ifndef _WIN32
+#if !defined(_WIN32) && !defined(__CYGWIN__)
 
 #include <signal.h>
 void disable_sigpipe()