--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancFramework/Resources/CMake/ProtobufConfiguration.cmake	Tue Sep 24 11:39:52 2024 +0200
@@ -0,0 +1,86 @@
+# Orthanc - A Lightweight, RESTful DICOM Store
+# Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+# Department, University Hospital of Liege, Belgium
+# Copyright (C) 2017-2023 Osimis S.A., Belgium
+# Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
+# Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
+#
+# This program is free software: you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public License
+# as published by the Free Software Foundation, either version 3 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program. If not, see
+# <http://www.gnu.org/licenses/>.
+
+
+if (STATIC_BUILD OR NOT USE_SYSTEM_PROTOBUF)
+  if (ENABLE_PROTOBUF_COMPILER)
+    include(ExternalProject)
+    externalproject_add(ProtobufCompiler
+      SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}/../ProtocolBuffers"
+      BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}/ProtobufCompiler-build"
+      # this helps triggering build when changing the external project
+      BUILD_ALWAYS 1
+      CMAKE_ARGS
+      -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
+      -DCMAKE_INSTALL_PREFIX=${CMAKE_CURRENT_BINARY_DIR}
+      )
+
+    # The "protoc" compiler is built using "externalproject_add",
+    # which builds for the host platform, not for the target platform
+    if (CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
+      set(Suffix ".exe")
+    else()
+      set(Suffix "")
+    endif()
+
+    set(PROTOC_EXECUTABLE ${CMAKE_CURRENT_BINARY_DIR}/protoc${Suffix})
+  endif()
+
+  include(${CMAKE_CURRENT_LIST_DIR}/../ProtocolBuffers/ProtobufLibrary.cmake)  
+  source_group(ThirdParty\\Protobuf REGULAR_EXPRESSION ${PROTOBUF_SOURCE_DIR}/.*)
+
+else()
+  if (CMAKE_CROSSCOMPILING)
+    message(FATAL_ERROR "If cross-compiling, the static version of Protocol Buffers should be used to avoid version mismatch")
+  endif()
+  
+  if (ENABLE_PROTOBUF_COMPILER)
+    find_program(PROTOC_EXECUTABLE protoc)
+    if (${PROTOC_EXECUTABLE} MATCHES "PROTOC_EXECUTABLE-NOTFOUND")
+      message(FATAL_ERROR "Please install the 'protoc' compiler for Protocol Buffers (package 'protobuf-compiler' on Debian/Ubuntu)")
+    endif()
+    add_custom_target(ProtobufCompiler)
+  endif()
+  
+  check_include_file_cxx(google/protobuf/any.h HAVE_PROTOBUF_H)
+  if (NOT HAVE_PROTOBUF_H)
+    message(FATAL_ERROR "Please install the libprotobuf-dev package")
+  endif()
+
+  set(CMAKE_REQUIRED_LIBRARIES "protobuf")
+
+  include(CheckCXXSourceCompiles) 
+  check_cxx_source_compiles(
+    "
+#include <google/protobuf/descriptor.h>
+int main()
+{
+  google::protobuf::FieldDescriptor::TypeName(google::protobuf::FieldDescriptor::TYPE_FLOAT);
+}
+"  HAVE_PROTOBUF_LIB)
+  if (NOT HAVE_PROTOBUF_LIB)
+    message(FATAL_ERROR "Cannot find the protobuf library")
+  endif()
+  
+  unset(CMAKE_REQUIRED_LIBRARIES)
+
+  link_libraries(protobuf)
+endif()