OOPS, add missing file for Windows GITHUB_PLUGIN

CMakeModules/download_openssl.cmake

+#  This program source code file is part of KICAD, a free EDA CAD application.
+#
+#  Copyright (C) 2013 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
+#  Copyright (C) 2013 Kicad Developers, see AUTHORS.txt for contributors.
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, you may find one here:
+#  http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+#  or you may search the http://www.gnu.org website for the version 2 license,
+#  or you may write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+
+
+
+# Download OPENSSL and install into ${PREFIX}, typically in our KiCad source tree.
+# Assumes include( ExternalProject ) was done inline previous to this file
+# and that set( DOWNLOAD_DIR ... ) was set in a higher context.
+
+#-----<configure>-------------------------------------------------------------------------------------
+
+set( OPENSSL_RELEASE "1.0.1e" )
+set( OPENSSL_MD5 66bf6f10f060d561929de96f9dfe5b8c ) # re-calc on every RELEASE change
+
+#-----</configure>-----------------------------------------------------------------------------------
+
+unset( PIC_FLAG )
+set( CFLAGS CFLAGS=${CMAKE_C_FLAGS} )
+
+if( MINGW )         # either MINGW or cross compiling?
+    if( CMAKE_SIZEOF_VOID_P EQUAL 4 )
+        set( MINGW32 true )
+        set( MACHINE x86_32 )
+    elseif( CMAKE_SIZEOF_VOID_P EQUAL 8 )
+        set( MINGW64 true )
+        set( MACHINE x86_64 )
+    endif()
+
+    if( MINGW32 )
+        set( HOST "--host=i586-pc-mingw32" )
+    elseif( MINGW64 )
+        set( HOST "--host=x86_64-pc-mingw32" )
+    endif()
+
+    set( CC "CC=${CMAKE_C_COMPILER}" )
+    set( RANLIB "RANLIB=${CMAKE_RANLIB}" )
+    set( AR "AR=${CMAKE_AR}" )
+else()
+    set( PIC_FLAG -fPIC )
+endif()
+
+string( TOLOWER ${CMAKE_HOST_SYSTEM_NAME} build )
+
+# Force some configure scripts into knowing this is a cross-compilation, if it is.
+set( BUILD --build=${CMAKE_HOST_SYSTEM_PROCESSOR}-pc-${build} )
+
+
+# http://www.blogcompiler.com/2011/12/21/openssl-for-windows/
+# http://qt-project.org/wiki/Compiling-OpenSSL-with-MinGW
+set( PREFIX ${DOWNLOAD_DIR}/openssl-${OPENSSL_RELEASE} )
+
+unset( CROSS )
+if( MINGW32 )
+    set( MW mingw )
+    set( CROSS "CROSS_COMPILE=${CROSS_COMPILE}" )
+elseif( MINGW64 )
+    set( MW mingw64 )
+    set( CROSS "CROSS_COMPILE=${CROSS_COMPILE}" )
+endif()
+
+ExternalProject_Add(
+    openssl
+    DOWNLOAD_DIR ${DOWNLOAD_DIR}
+    PREFIX ${PREFIX}
+    TIMEOUT 60
+    URL http://www.openssl.org/source/openssl-${OPENSSL_RELEASE}.tar.gz
+    URL_MD5 ${OPENSSL_MD5}
+
+    # mingw uses msvcrt.dll's printf() which cannot handle %zd, so having
+    # BIO_snprintf() reference printf()'s formating attributes is a bug, since
+    # BIO_snprintf() does its own formatting and is different from msvcrt's printf().
+
+    # This one would be easier if Windows folks could be asked to install "patch.exe"
+    # PATCH_COMMAND patch -p0 < ${PROJECT_SOURCE_DIR}/patches/openssl-1.0.1e.patch
+
+    # This one requires the bzr commit below, since bzr patch only knows a working tree.
+    PATCH_COMMAND bzr patch -p0 ${PROJECT_SOURCE_DIR}/patches/openssl-1.0.1e.patch
+
+    # this requires that perl be installed:
+    CONFIGURE_COMMAND
+            ${CROSS}
+            <SOURCE_DIR>/Configure
+            ${MW}
+            --prefix=<INSTALL_DIR>
+            ${PIC_FLAG}         # empty for MINGW
+            shared
+
+    BUILD_IN_SOURCE 1
+    BUILD_COMMAND make depend
+          COMMAND make
+    INSTALL_COMMAND make install
+    )
+
+# In order to use "bzr patch", we have to have a bzr working tree, this means a bzr repo
+# must be created and source committed to it.  These extra steps do that.
+
+set( target "openssl" )
+
+ExternalProject_Add_Step( ${target} bzr_commit_${target}
+    COMMAND bzr ci -q -m pristine <SOURCE_DIR>
+    COMMENT "committing pristine ${target} files to '${target} scratch repo'"
+    DEPENDERS patch
+    )
+
+ExternalProject_Add_Step( ${target} bzr_add_${target}
+    COMMAND bzr add -q <SOURCE_DIR>
+    COMMENT "adding pristine ${target} files to '${target} scratch repo'"
+    DEPENDERS bzr_commit_${target}
+    )
+
+ExternalProject_Add_Step( ${target} bzr_init_${target}
+    COMMAND bzr init -q <SOURCE_DIR>
+    COMMENT "creating '${target} scratch repo' specifically for tracking ${target} patches"
+    DEPENDERS bzr_add_${target}
+    DEPENDEES download
+    )
+
+# The spelling of these is always taken from CMake Module's FindXYZ.cmake file:
+set( OPENSSL_INCLUDE_DIR
+    ${PREFIX}/include
+    CACHE FILEPATH "OPENSSL include directory"
+    )
+
+set( OPENSSL_LIBRARIES
+    ${PREFIX}/lib/libssl.a
+    ${PREFIX}/lib/libcrypto.a
+    CACHE STRING "OPENSSL libraries"
+    )
+set( OPENSSL_FOUND true )
+