--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancFramework/Resources/CMake/Compiler.cmake	Wed Jun 10 20:30:34 2020 +0200
@@ -0,0 +1,263 @@
+# This file sets all the compiler-related flags
+
+include(CheckLibraryExists)
+
+if ((CMAKE_CROSSCOMPILING AND NOT
+      "${CMAKE_SYSTEM_VERSION}" STREQUAL "CrossToolNg") OR    
+    "${CMAKE_SYSTEM_VERSION}" STREQUAL "LinuxStandardBase")
+  # Cross-compilation necessarily implies standalone and static build
+  SET(STATIC_BUILD ON)
+  SET(STANDALONE_BUILD ON)
+endif()
+
+
+if ("${CMAKE_SYSTEM_VERSION}" STREQUAL "LinuxStandardBase")
+  # Cache the environment variables "LSB_CC" and "LSB_CXX" for further
+  # use by "ExternalProject" in CMake
+  SET(CMAKE_LSB_CC $ENV{LSB_CC} CACHE STRING "")
+  SET(CMAKE_LSB_CXX $ENV{LSB_CXX} CACHE STRING "")
+endif()
+
+
+if (CMAKE_COMPILER_IS_GNUCXX)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wno-long-long")
+
+  # --std=c99 makes libcurl not to compile
+  # -pedantic gives a lot of warnings on OpenSSL 
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wno-long-long -Wno-variadic-macros")
+
+  if (CMAKE_CROSSCOMPILING)
+    # http://stackoverflow.com/a/3543845/881731
+    set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> -O coff -I<CMAKE_CURRENT_SOURCE_DIR> <SOURCE> <OBJECT>")
+  endif()
+
+elseif (MSVC)
+  # Use static runtime under Visual Studio
+  # http://www.cmake.org/Wiki/CMake_FAQ#Dynamic_Replace
+  # http://stackoverflow.com/a/6510446
+  foreach(flag_var
+    CMAKE_C_FLAGS_DEBUG
+    CMAKE_CXX_FLAGS_DEBUG
+    CMAKE_C_FLAGS_RELEASE 
+    CMAKE_CXX_FLAGS_RELEASE
+    CMAKE_C_FLAGS_MINSIZEREL 
+    CMAKE_CXX_FLAGS_MINSIZEREL 
+    CMAKE_C_FLAGS_RELWITHDEBINFO 
+    CMAKE_CXX_FLAGS_RELWITHDEBINFO) 
+    string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
+    string(REGEX REPLACE "/MDd" "/MTd" ${flag_var} "${${flag_var}}")
+  endforeach(flag_var)
+
+  # Add /Zm256 compiler option to Visual Studio to fix PCH errors
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Zm256")
+
+  # New in Orthanc 1.5.5
+  if (MSVC_MULTIPLE_PROCESSES)
+    # "If you omit the processMax argument in the /MP option, the
+    # compiler obtains the number of effective processors from the
+    # operating system, and then creates one process per effective
+    # processor"
+    # https://blog.kitware.com/cmake-building-with-all-your-cores/
+    # https://docs.microsoft.com/en-us/cpp/build/reference/mp-build-with-multiple-processes
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /MP")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
+  endif()
+    
+  add_definitions(
+    -D_CRT_SECURE_NO_WARNINGS=1
+    -D_CRT_SECURE_NO_DEPRECATE=1
+    )
+
+  if (MSVC_VERSION LESS 1600)
+    # Starting with Visual Studio >= 2010 (i.e. macro _MSC_VER >=
+    # 1600), Microsoft ships a standard-compliant <stdint.h>
+    # header. For earlier versions of Visual Studio, give access to a
+    # compatibility header.
+    # http://stackoverflow.com/a/70630/881731
+    # https://en.wikibooks.org/wiki/C_Programming/C_Reference/stdint.h#External_links
+    include_directories(${ORTHANC_ROOT}/Resources/ThirdParty/VisualStudio)
+  endif()
+
+  link_libraries(netapi32)
+endif()
+
+
+if (${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" OR
+    ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
+  # In FreeBSD/OpenBSD, the "/usr/local/" folder contains the ports and need to be imported
+  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -I/usr/local/include")
+  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I/usr/local/include")
+  SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -L/usr/local/lib")
+  SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -L/usr/local/lib")
+endif()
+
+
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux" OR
+    ${CMAKE_SYSTEM_NAME} STREQUAL "kFreeBSD" OR
+    ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" OR
+    ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
+
+  if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD" AND
+      NOT ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
+    # The "--no-undefined" linker flag makes the shared libraries
+    # (plugins ModalityWorklists and ServeFolders) fail to compile on
+    # OpenBSD, and make the PostgreSQL plugin complain about missing
+    # "environ" global variable in FreeBSD
+    set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--no-undefined")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--no-undefined")
+  endif()
+
+  if (NOT DEFINED ENABLE_PLUGINS_VERSION_SCRIPT OR 
+      ENABLE_PLUGINS_VERSION_SCRIPT)
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--version-script=${ORTHANC_ROOT}/Plugins/Samples/Common/VersionScript.map")
+  endif()
+
+  # Remove the "-rdynamic" option
+  # http://www.mail-archive.com/cmake@cmake.org/msg08837.html
+  set(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")
+  link_libraries(pthread)
+
+  if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
+    link_libraries(rt)
+  endif()
+
+  if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" AND
+      NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
+    link_libraries(dl)
+  endif()
+
+  if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" AND
+      NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
+    # The "--as-needed" linker flag is not available on FreeBSD and OpenBSD
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--as-needed")
+    set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--as-needed")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--as-needed")
+  endif()
+
+  if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" AND
+      NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
+    # FreeBSD/OpenBSD have just one single interface for file
+    # handling, which is 64bit clean, so there is no need to define macro
+    # for LFS (Large File Support).
+    # https://ohse.de/uwe/articles/lfs.html
+    add_definitions(
+      -D_LARGEFILE64_SOURCE=1 
+      -D_FILE_OFFSET_BITS=64
+      )
+  endif()
+
+elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
+  if (MSVC)
+    message("MSVC compiler version = " ${MSVC_VERSION} "\n")
+    # Starting Visual Studio 2013 (version 1800), it is not possible
+    # to target Windows XP anymore
+    if (MSVC_VERSION LESS 1800)
+      add_definitions(
+        -DWINVER=0x0501
+        -D_WIN32_WINNT=0x0501
+        )
+    endif()
+  else()
+    add_definitions(
+      -DWINVER=0x0501
+      -D_WIN32_WINNT=0x0501
+      )
+  endif()
+
+  add_definitions(
+    -D_CRT_SECURE_NO_WARNINGS=1
+    )
+  link_libraries(rpcrt4 ws2_32)
+
+  if (CMAKE_COMPILER_IS_GNUCXX)
+    # Some additional C/C++ compiler flags for MinGW
+    SET(MINGW_NO_WARNINGS "-Wno-unused-function -Wno-unused-variable")
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${MINGW_NO_WARNINGS} -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast")
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${MINGW_NO_WARNINGS}")
+
+    if (DYNAMIC_MINGW_STDLIB)
+    else()
+      # This is a patch for MinGW64
+      SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--allow-multiple-definition -static-libgcc -static-libstdc++")
+      SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--allow-multiple-definition -static-libgcc -static-libstdc++")
+    endif()
+
+    CHECK_LIBRARY_EXISTS(winpthread pthread_create "" HAVE_WIN_PTHREAD)
+    if (HAVE_WIN_PTHREAD)
+      if (DYNAMIC_MINGW_STDLIB)
+      else()
+        # This line is necessary to compile with recent versions of MinGW,
+        # otherwise "libwinpthread-1.dll" is not statically linked.
+        SET(CMAKE_CXX_STANDARD_LIBRARIES "${CMAKE_CXX_STANDARD_LIBRARIES} -Wl,-Bstatic -lstdc++ -lpthread -Wl,-Bdynamic")
+      endif()
+      add_definitions(-DHAVE_WIN_PTHREAD=1)
+    else()
+      add_definitions(-DHAVE_WIN_PTHREAD=0)
+    endif()
+  endif()
+
+elseif (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
+  SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -exported_symbols_list ${ORTHANC_ROOT}/Plugins/Samples/Common/ExportedSymbols.list")
+
+  add_definitions(
+    -D_XOPEN_SOURCE=1
+    )
+  link_libraries(iconv)
+
+elseif (CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
+  message("Building using Emscripten (for WebAssembly or asm.js targets)")
+
+  # The BINARYEN_TRAP_MODE specifies what to do when divisions per
+  # zero (and similar conditions like integer overflows) are
+  # encountered: The "clamp" mode avoids throwing errors, as they
+  # cannot be properly catched by "try {} catch (...)" constructions.
+  # Setting this option to "ON" fixes error: "shared:ERROR:
+  # BINARYEN_TRAP_MODE is not supported by the LLVM wasm backend" if
+  # using the "upstream" backend of Emscripten.
+  if (NOT EMSCRIPTEN_SET_LLVM_WASM_BACKEND)
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s BINARYEN_TRAP_MODE='\"clamp\"'")
+  endif()
+
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s EXTRA_EXPORTED_RUNTIME_METHODS='[\"ccall\", \"cwrap\"]'")
+  
+elseif (CMAKE_SYSTEM_NAME STREQUAL "Android")
+
+else()
+  message("Unknown target platform: ${CMAKE_SYSTEM_NAME}")
+  message(FATAL_ERROR "Support your platform here")
+endif()
+
+
+if (DEFINED ENABLE_PROFILING AND ENABLE_PROFILING)
+  if (CMAKE_COMPILER_IS_GNUCXX)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pg")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pg")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pg")
+    set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -pg")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -pg")
+  else()
+    message(FATAL_ERROR "Don't know how to enable profiling on your configuration")
+  endif()
+endif()
+
+
+if (CMAKE_COMPILER_IS_GNUCXX)
+  # "When creating a static library using binutils (ar) and there
+  # exist a duplicate object name (e.g. a/Foo.cpp.o, b/Foo.cpp.o), the
+  # resulting static library can end up having only one of the
+  # duplicate objects. [...] This bug only happens if there are many
+  # objects." The trick consists in replacing the "r" argument
+  # ("replace") provided to "ar" (as used in CMake < 3.1) by the "q"
+  # argument ("quick append"). This is because of the fact that CMake
+  # will invoke "ar" several times with several batches of ".o"
+  # objects, and using "r" would overwrite symbols defined in
+  # preceding batches. https://cmake.org/Bug/view.php?id=14874
+  set(CMAKE_CXX_ARCHIVE_APPEND "<CMAKE_AR> <LINK_FLAGS> q <TARGET> <OBJECTS>")
+endif()
+
+
+if (STATIC_BUILD)
+  add_definitions(-DORTHANC_STATIC=1)
+else()
+  add_definitions(-DORTHANC_STATIC=0)
+endif()