initial commit of files for building 64-bit Csound on Win64 using msy…

…s2 and mingw64-w64-x86_64

mingw64/.gitignore

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+csound-mingw64

mingw64/Custom-mingw64.cmake

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+# CUSTOM PROPERTIES TO SET
+
+# GLOBAL
+
+set(CMAKE_BUILD_TYPE "RelWithDebInfo")
+set(CMAKE_VERBOSE_MAKEFILE OFF)
+set(BUILD_STATIC_LIBRARY ON)
+set(USE_OPEN_MP OFF)
+set(TCL_VERSION 8.5)
+#set(PYTHON_INCLUDE_DIRS "/usr/include/python2.7")
+##set(BUILD_CSOUND_AC OFF)
+##set(BUILD_CSOUND_AC_PYTHON_INTERFACE OFF)
+##set(BUILD_CSOUND_AC_LUA_INTERFACE OFF)
+
+
+#GET_FILENAME_COMPONENT(MINGW_DEPS_DIR "${CMAKE_CURRENT_BINARY_DIR}/../mingw64" ABSOLUTE)
+#list(APPEND CMAKE_SYSTEM_LIBRARY_PATH "c:/cygwin64/lib")
+#list(APPEND CMAKE_SYSTEM_INCLUDE_PATH "c:/cygwin64/usr/include")
+#set(CMAKE_SYSTEM_INCLUDE_PATH "${CMAKE_SYSTEM_INCLUDE_PATH};$MINGW_DEPS_DIR/usr/local/include")
+
+#### NOTE the processor type needs setting
+#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -W -Wall -O3 -mtune=core2 -I${MINGW_DEPS_DIR}/usr/local/include --sysroot=/usr/x86_64-w64-mingw32")
+#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -W -Wall -O3 -mtune=core2 -fpermissive")
+## also to test multicore
+#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -W -Wno-missing-field-initializers -Wno-unused-parameter -O3 -mtune=core2 -DJPFF")
+

mingw64/README.md

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+# Building with msys2 and Mingw64
+
+The following are instructions for building Csound for 64-bit Windows (x86_64) using msys2 and mingw64. The following was tested on Windows 10.
+
+## Setup 
+
+1. Install the x86_64 version of [msys2](http://msys2.github.io/). Follow the pacman setup instructions carefully.
+2. Install additional development tools using pacman. (TBD)
+3. Open a MinGW-w64 Win64 Shell.  This will load a terminal with all tools for mingw64 setup.
+4. Change directories to this directory and run ./build.sh
+
+## Notes
+
+* SWIG_DIR is not parsed correctly by CMake within msys2.  The reason is unknown at this time, and SWIG_DIR was hardcoded in build.sh to the appropriate location.  This is a hack, as the value will have to change if the version of SWIG is updated in the package repository for mingw64. 
+
+* Building the python interface for 64-bit python requires some hacking to build with mingw64. Information is available at [this site](http://ascend4.org/Setting_up_a_MinGW-w64_build_environment).

mingw64/Toolchain-mingw64.cmake

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+# the name of the target operating system
+#SET(CMAKE_SYSTEM_NAME Windows)
+
+# which compilers to use for C and C++
+#SET(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
+#SET(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
+#SET(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
+
+#GET_FILENAME_COMPONENT(MINGW_DEPS_DIR "${CMAKE_CURRENT_BINARY_DIR}/../mingw64" ABSOLUTE)
+#message(STATUS ">>> ${MINGW_DEPS_DIR}")
+# here is the target environment located
+#SET(CMAKE_FIND_ROOT_PATH  /usr/x86_64-w64-mingw32 ${MINGW_DEPS_DIR} ${MINGW_DEPS_DIR}/usr/local)
+#SET(CMAKE_FIND_ROOT_PATH  /mingw64 /mingw64/x86_64-w64-mingw32 /usr)
+
+#SET(CMAKE_SYSTEM_PREFIX_PATH /mingw64/x85_64-w64-mingw32)
+
+# adjust the default behaviour of the FIND_XXX() commands:
+# search headers and libraries in the target environment, search 
+# programs in the host environment
+#set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+#set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+#set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+
+# http://www.cmake.org/Wiki/CMake_Cross_Compiling#The_toolchain_file
+# http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=8959
+# http://stackoverflow.com/questions/19754316/cross-compiling-opencv-with-mingw-using-cmakein-linux-for-windows
+
+# this one is important
+#SET(CMAKE_SYSTEM_NAME Windows)
+##this one not so much
+##SET(CMAKE_SYSTEM_VERSION 1)
+
+## specify the cross compiler
+#SET(PREFIX x86_64-w64-mingw32)
+##SET(CMAKE_MAKE_PROGRAM mingw32-make)
+#SET(CMAKE_C_COMPILER   ${PREFIX}-gcc)
+#SET(CMAKE_CXX_COMPILER ${PREFIX}-g++)
+#SET(CMAKE_AR ${PREFIX}-gcc-ar)
+#SET(CMAKE_NM ${PREFIX}-gcc-nm)
+#SET(CMAKE_RC_COMPILER  windres)
+
+## specify the cross linker
+#SET(CMAKE_RANLIB ${PREFIX}-gcc-ranlib)
+
+# where is the target environment
+#SET(CMAKE_FIND_ROOT_PATH / /mingw64)

mingw64/build.sh

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+#!/bin/bash
+
+mkdir csound-mingw64 
+cd csound-mingw64 
+cmake ../.. -DCMAKE_TOOLCHAIN_FILE=../Toolchain-mingw64.cmake -DCMAKE_INSTALL_PREFIX=dist -DCUSTOM_CMAKE=../Custom-mingw64.cmake -DUSE_GETTEXT=0 -DSWIG_DIR=C:\msys2\mingw64\share\swig\3.0.6 -G "MSYS Makefiles"
+make -j6 install
+