1 files changed, 88 insertions, 0 deletions
diff --git a/build_files/build_environment/cmake/gmp.cmake b/build_files/build_environment/cmake/gmp.cmake
new file mode 100644
index 00000000000..40d8e04b3a7
--- /dev/null
+++ b/build_files/build_environment/cmake/gmp.cmake
@@ -0,0 +1,88 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# 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, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(GMP_EXTRA_ARGS -enable-cxx)
+
+if(WIN32)
+  # Shared for windows because static libs will drag in a libgcc dependency.
+  set(GMP_OPTIONS --disable-static --enable-shared --host=x86_64-w64-mingw32 --build=x86_64-w64-mingw32)
+else()
+  set(GMP_OPTIONS --enable-static --disable-shared )
+endif()
+
+ExternalProject_Add(external_gmp
+  URL ${GMP_URI}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH MD5=${GMP_HASH}
+  PREFIX ${BUILD_DIR}/gmp
+  CONFIGURE_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/gmp/src/external_gmp/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/gmp ${GMP_OPTIONS} ${GMP_EXTRA_ARGS}
+  BUILD_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/gmp/src/external_gmp/ && make -j${MAKE_THREADS}
+  INSTALL_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/gmp/src/external_gmp/ && make install
+  INSTALL_DIR ${LIBDIR}/gmp
+)
+
+if(MSVC)
+  set_target_properties(external_gmp PROPERTIES FOLDER Mingw)
+endif()
+
+if(BUILD_MODE STREQUAL Release AND WIN32)
+  ExternalProject_Add_Step(external_gmp after_install
+      COMMAND  ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-3.dll.def ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.def
+      COMMAND  lib /def:${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.def /machine:x64 /out:${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.lib
+      COMMAND  ${CMAKE_COMMAND} -E copy ${LIBDIR}/gmp/bin/libgmp-10.dll ${HARVEST_TARGET}/gmp/lib/libgmp-10.dll
+      COMMAND  ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.lib ${HARVEST_TARGET}/gmp/lib/libgmp-10.lib
+      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/gmp/include ${HARVEST_TARGET}/gmp/include
+    DEPENDEES install
+  )
+endif()
+
+if(BUILD_MODE STREQUAL Debug AND WIN32)
+ExternalProject_Add_Step(external_gmp after_install
+      COMMAND  ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-3.dll.def ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.def
+      COMMAND  lib /def:${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.def /machine:x64 /out:${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.lib
+    DEPENDEES install
+  )
+endif()
+
+if(WIN32)
+  # gmpxx is somewhat special, it builds on top of the C style gmp library but exposes C++ bindings
+  # given the C++ ABI between MSVC and mingw is not compatible, we need to build the bindings
+  # with MSVC, while GMP can only be build with mingw.
+  ExternalProject_Add(external_gmpxx
+    URL ${GMP_URI}
+    DOWNLOAD_DIR ${DOWNLOAD_DIR}
+    URL_HASH MD5=${GMP_HASH}
+    PREFIX ${BUILD_DIR}/gmpxx
+    PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_gmpxx.txt ${BUILD_DIR}/gmpxx/src/external_gmpxx/CMakeLists.txt &&
+                          ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/config_gmpxx.h ${BUILD_DIR}/gmpxx/src/external_gmpxx/config.h
+    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/gmpxx ${DEFAULT_CMAKE_FLAGS} -DGMP_LIBRARY=${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.lib -DGMP_INCLUDE_DIR=${BUILD_DIR}/gmp/src/external_gmp -DCMAKE_DEBUG_POSTFIX=_d
+    INSTALL_DIR ${LIBDIR}/gmpxx
+  )
+  set_target_properties(external_gmpxx PROPERTIES FOLDER Mingw)
+
+  add_dependencies(
+    external_gmpxx
+    external_gmp
+  )
+
+  ExternalProject_Add_Step(external_gmpxx after_install
+      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/gmpxx/ ${HARVEST_TARGET}/gmp
+    DEPENDEES install
+  )
+
+endif()