From 50d2d3ef5541bf3c3a143e58fc0207de8d290d92 Mon Sep 17 00:00:00 2001
From: gendalph <maxim.prohorenko@gmail.com>
Date: Tue, 12 Sep 2017 22:10:59 +0300
Subject: [PATCH] CMake build fixes for Visual Studio

Remove unsupported cmd line options (gcc).
Disable warning for DLL.
---
 runtime/Cpp/CMakeLists.txt                | 10 ++++++++--
 runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake |  2 ++
 runtime/Cpp/demo/CMakeLists.txt           |  8 +++++++-
 runtime/Cpp/runtime/CMakeLists.txt        | 10 +++++++++-
 4 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/runtime/Cpp/CMakeLists.txt b/runtime/Cpp/CMakeLists.txt
index 65e704516..cfc8a7693 100644
--- a/runtime/Cpp/CMakeLists.txt
+++ b/runtime/Cpp/CMakeLists.txt
@@ -25,7 +25,8 @@ project(LIBANTLR4)
 
 if(CMAKE_VERSION VERSION_EQUAL "3.0.0" OR
    CMAKE_VERSION VERSION_GREATER "3.0.0")
-  CMAKE_POLICY(SET CMP0026 OLD)
+  CMAKE_POLICY(SET CMP0026 NEW)
+  CMAKE_POLICY(SET CMP0054 OLD)
   CMAKE_POLICY(SET CMP0045 OLD)
   CMAKE_POLICY(SET CMP0042 OLD)
 endif()
@@ -61,7 +62,9 @@ if (WITH_DEMO)
   endif()
 endif(WITH_DEMO)
 
-set(MY_CXX_WARNING_FLAGS "  -Wall -pedantic -W")
+if (NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+  set(MY_CXX_WARNING_FLAGS "  -Wall -pedantic -W")
+endif ()
 
 # Initialize CXXFLAGS.
 if("${CMAKE_VERSION}" VERSION_GREATER 3.1.0)
@@ -75,11 +78,13 @@ else()
   set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -std=c++11")
 endif()
 
+if (NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
 set(CMAKE_CXX_FLAGS                "${CMAKE_CXX_FLAGS} -Wall ${MY_CXX_WARNING_FLAGS}")
 set(CMAKE_CXX_FLAGS_DEBUG          "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g ${MY_CXX_WARNING_FLAGS}")
 set(CMAKE_CXX_FLAGS_MINSIZEREL     "${CMAKE_CXX_FLAGS_MINSIZEREL} -Os -DNDEBUG ${MY_CXX_WARNING_FLAGS}")
 set(CMAKE_CXX_FLAGS_RELEASE        "${CMAKE_CXX_FLAGS_RELEASE} -O3 -DNDEBUG ${MY_CXX_WARNING_FLGAS}")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -O2 -g ${MY_CXX_WARNING_FLAGS}")
+endif ()
 
 # Compiler-specific C++11 activation.
 if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
@@ -101,6 +106,7 @@ elseif ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" AND CMAKE_SYSTEM_NAME MATCHES
     if (WITH_LIBCXX)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
     endif()
+elseif (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
 else ()
     message(FATAL_ERROR "Your C++ compiler does not support C++11.")
 endif ()
diff --git a/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake b/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake
index e1c28821a..a77c09307 100644
--- a/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake
+++ b/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake
@@ -206,11 +206,13 @@ macro(antlr4cpp_process_grammar
   # export generated cpp files into list
   foreach(generated_file ${generated_files})
     list(APPEND antlr4cpp_src_files_${antlr4cpp_project_namespace} ${generated_file})
+    if (NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
     set_source_files_properties(
       ${generated_file}
       PROPERTIES
       COMPILE_FLAGS -Wno-overloaded-virtual
       )
+    endif ()
   endforeach(generated_file)
   message(STATUS "Antlr4Cpp  ${antlr4cpp_project_namespace} Generated: ${generated_files}")
 
diff --git a/runtime/Cpp/demo/CMakeLists.txt b/runtime/Cpp/demo/CMakeLists.txt
index a91c40ddc..53e45fe40 100644
--- a/runtime/Cpp/demo/CMakeLists.txt
+++ b/runtime/Cpp/demo/CMakeLists.txt
@@ -45,11 +45,17 @@ set(antlr4-demo_SRC
   ${antlr4-demo-GENERATED_SRC}
   )
 
+if (NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+  set (flags_1 "-Wno-overloaded-virtual")
+else()
+  set (flags_1 "-MP /wd4251")
+endif()
+
 foreach( src_file ${antlr4-demo_SRC} )
       set_source_files_properties(
           ${src_file}
           PROPERTIES
-          COMPILE_FLAGS -Wno-overloaded-virtual
+          COMPILE_FLAGS "${COMPILE_FLAGS} ${flags_1}"
           )
 endforeach( src_file ${antlr4-demo_SRC} )
 
diff --git a/runtime/Cpp/runtime/CMakeLists.txt b/runtime/Cpp/runtime/CMakeLists.txt
index b2a4fbd02..c51d7f310 100644
--- a/runtime/Cpp/runtime/CMakeLists.txt
+++ b/runtime/Cpp/runtime/CMakeLists.txt
@@ -44,7 +44,10 @@ elseif(APPLE)
   target_link_libraries(antlr4_static ${COREFOUNDATION_LIBRARY})
 endif()
 
-set(disabled_compile_warnings "-Wno-overloaded-virtual")
+if (NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+  set(disabled_compile_warnings "-Wno-overloaded-virtual")
+endif ()
+
 if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
   set(disabled_compile_warnings "${disabled_compile_warnings} -Wno-dollar-in-identifier-extension -Wno-four-char-constants")
 elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
@@ -58,6 +61,11 @@ if (WIN32)
   set(extra_static_compile_flags "-DANTLR4CPP_STATIC")
 endif(WIN32)
 
+if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+  set(extra_share_compile_flags "-DANTLR4CPP_EXPORTS -MP /wd4251")
+  set(extra_static_compile_flags "-DANTLR4CPP_STATIC -MP")
+endif()
+
 set_target_properties(antlr4_shared
                       PROPERTIES VERSION   ${ANTLR_VERSION}
                                  SOVERSION ${ANTLR_VERSION}