Buildsystem: Add support for compiling with MinGW on Windows

Tested with:
- Windows 8 x64
- MySQL 5.5.30 win32
- OpenSSL 1.0.1c (32 bits)
- No PCH
- MinGW with GCC 4.7.0

TODO:
- Fix compile/link with PCH enabled
- Fix compile with WheatyExceptonionReport enabled (ignored for now)
- Fix compile of .rc files (ignored for now)
- Test with more platforms

6 files changed, 51 insertions, 25 deletions

diff --git a/src/server/CMakeLists.txt b/src/server/CMakeLists.txt
index e8816ea8816..02fca56340f 100644
--- a/src/server/CMakeLists.txt
+++ b/src/server/CMakeLists.txt
@@ -12,7 +12,7 @@
 # This to stop a few silly crashes that could have been avoided IF people
 # weren't doing some -O3 psychooptimizations etc.
 
-if(CMAKE_COMPILER_IS_GNUCXX)
+if(CMAKE_COMPILER_IS_GNUCXX AND NOT MINGW)
   add_definitions(-fno-delete-null-pointer-checks)
 endif()
 
diff --git a/src/server/authserver/CMakeLists.txt b/src/server/authserver/CMakeLists.txt
index 328369cb908..f7c4b9cb8ca 100644
--- a/src/server/authserver/CMakeLists.txt
+++ b/src/server/authserver/CMakeLists.txt
@@ -29,11 +29,18 @@ set(authserver_SRCS
 )
 
 if( WIN32 )
-set(authserver_SRCS
-    ${authserver_SRCS}
-    ${sources_Debugging}
+  if ( MSVC )
+    set(authserver_SRCS
+      ${authserver_SRCS}
+      ${sources_Debugging}
     authserver.rc
-)
+    )
+  else ( )
+    set(authserver_SRCS
+      ${authserver_SRCS}
+      ${sources_Debugging}
+    )
+  endif ()
 endif()
 
 include_directories(
@@ -76,10 +83,17 @@ target_link_libraries(authserver
 )
 
 if( WIN32 )
-  add_custom_command(TARGET authserver
-    POST_BUILD
-    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/authserver.conf.dist ${CMAKE_BINARY_DIR}/bin/$(ConfigurationName)/
-  )
+  if ( MSVC )
+    add_custom_command(TARGET authserver
+      POST_BUILD
+      COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/authserver.conf.dist ${CMAKE_BINARY_DIR}/bin/$(ConfigurationName)/
+    )
+  elseif ( MINGW )
+    add_custom_command(TARGET authserver
+      POST_BUILD
+      COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/authserver.conf.dist ${CMAKE_BINARY_DIR}/bin/
+    )
+  endif()
 endif()
 
 if( UNIX )
diff --git a/src/server/collision/BoundingIntervalHierarchy.cpp b/src/server/collision/BoundingIntervalHierarchy.cpp
index 4c1f449da25..340d66ddaf0 100644
--- a/src/server/collision/BoundingIntervalHierarchy.cpp
+++ b/src/server/collision/BoundingIntervalHierarchy.cpp
@@ -18,12 +18,10 @@
 
 #include "BoundingIntervalHierarchy.h"
 
-#if defined __APPLE__
-  #define isnan std::isnan
-#elif defined __CYGWIN__
-  #define isnan std::isnan
-#elif defined _MSC_VER
+#ifdef _MSC_VER
   #define isnan _isnan
+#else
+  #define isnan std::isnan
 #endif
 
 void BIH::buildHierarchy(std::vector<uint32> &tempTree, buildData &dat, BuildStats &stats)
diff --git a/src/server/shared/Debugging/WheatyExceptionReport.cpp b/src/server/shared/Debugging/WheatyExceptionReport.cpp
index ea9ab096dcd..19db228913b 100644
--- a/src/server/shared/Debugging/WheatyExceptionReport.cpp
+++ b/src/server/shared/Debugging/WheatyExceptionReport.cpp
@@ -3,7 +3,7 @@
 // MSDN Magazine, 2002
 // FILE: WheatyExceptionReport.CPP
 //==========================================
-#if PLATFORM == PLATFORM_WINDOWS
+#if PLATFORM == PLATFORM_WINDOWS && not defined(__MINGW32__)
 #define WIN32_LEAN_AND_MEAN
 #pragma warning(disable:4996)
 #pragma warning(disable:4312)
diff --git a/src/server/shared/Debugging/WheatyExceptionReport.h b/src/server/shared/Debugging/WheatyExceptionReport.h
index 8ade80ca47b..684b10e9b9a 100644
--- a/src/server/shared/Debugging/WheatyExceptionReport.h
+++ b/src/server/shared/Debugging/WheatyExceptionReport.h
@@ -1,7 +1,7 @@
 #ifndef _WHEATYEXCEPTIONREPORT_
 #define _WHEATYEXCEPTIONREPORT_
 
-#if PLATFORM == PLATFORM_WINDOWS
+#if PLATFORM == PLATFORM_WINDOWS && not defined(__MINGW32__)
 
 #include <dbghelp.h>
 
diff --git a/src/server/worldserver/CMakeLists.txt b/src/server/worldserver/CMakeLists.txt
index 8c1350a7ca0..b7097be8e2a 100644
--- a/src/server/worldserver/CMakeLists.txt
+++ b/src/server/worldserver/CMakeLists.txt
@@ -29,11 +29,18 @@ set(worldserver_SRCS
 )
 
 if( WIN32 )
-  set(worldserver_SRCS
-    ${worldserver_SRCS}
-    ${sources_Debugging}
-    worldserver.rc
-  )
+  if ( MSVC )
+    set(worldserver_SRCS
+      ${worldserver_SRCS}
+      ${sources_Debugging}
+      worldserver.rc
+    )
+  else ( )
+    set(worldserver_SRCS
+      ${worldserver_SRCS}
+      ${sources_Debugging}
+    )
+  endif ()
 endif()
 
 include_directories(
@@ -175,10 +182,17 @@ target_link_libraries(worldserver
 )
 
 if( WIN32 )
-  add_custom_command(TARGET worldserver
-    POST_BUILD
-    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/worldserver.conf.dist ${CMAKE_BINARY_DIR}/bin/$(ConfigurationName)/
-  )
+  if ( MSVC )
+    add_custom_command(TARGET worldserver
+      POST_BUILD
+      COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/worldserver.conf.dist ${CMAKE_BINARY_DIR}/bin/$(ConfigurationName)/
+    )
+  elseif ( MINGW )
+    add_custom_command(TARGET worldserver
+      POST_BUILD
+      COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/worldserver.conf.dist ${CMAKE_BINARY_DIR}/bin/
+    )
+  endif()
 endif()
 
 if( UNIX )