Fix Python integration to build with vcpkg

* Add vcpkg support to find Oython using CMake
* Fix pid_t conflict with python
* Fix COMPILER conflict with python

CMakeModules/FindPythonInterp.cmake

@@ -107,6 +107,8 @@ if(NOT PYTHON_EXECUTABLE)
         list( APPEND _Python_PPATHS "C:/python/${_CURRENT_VERSION}.2" )
         list( APPEND _Python_PPATHS "C:/python/${_CURRENT_VERSION}.1" )
         list( APPEND _Python_PPATHS "C:/python/${_CURRENT_VERSION}.0" )
+    elseif(VCPKG_TOOLCHAIN)
+        list( APPEND _Python_PPATHS ${PYTHON_ROOT_DIR} )
     else()
         list( APPEND _Python_PPATHS [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath] )
     endif()

CMakeModules/FindPythonLibs.cmake

@@ -91,13 +91,20 @@ foreach(_CURRENT_VERSION ${_Python_VERSIONS})
   if(WIN32)
     if(MINGW)
       find_library(PYTHON_DEBUG_LIBRARY
-        NAMES python{$_CURRENT_VERSION}_d
+        NAMES python${_CURRENT_VERSION}_d
         PATHS
           "${PYTHON_ROOT_DIR}"
           "c:/python${_CURRENT_VERSION}"
           "c:/python${_CURRENT_VERSION_NO_DOTS}"
         NO_SYSTEM_ENVIRONMENT_PATH
       )
+    elseif(VCPKG_TOOLCHAIN)
+      find_library(PYTHON_DEBUG_LIBRARY
+        NAMES python${_CURRENT_VERSION_NO_DOTS}_d
+        PATHS
+          "${PYTHON_ROOT_DIR}"
+        NO_SYSTEM_ENVIRONMENT_PATH
+      )
     else()
       find_library(PYTHON_DEBUG_LIBRARY
         NAMES python${_CURRENT_VERSION_NO_DOTS}_d python
@@ -121,6 +128,16 @@ foreach(_CURRENT_VERSION ${_Python_VERSIONS})
         ${_CURRENT_VERSION_NO_DOTS}
       NO_SYSTEM_ENVIRONMENT_PATH
     )
+  elseif(VCPKG_TOOLCHAIN)
+    find_library(PYTHON_LIBRARY
+      NAMES python${_CURRENT_VERSION_NO_DOTS}
+      PATHS
+        "${PYTHON_ROOT_DIR}"
+      PATH_SUFFIXES
+        ${_CURRENT_VERSION}
+        ${_CURRENT_VERSION_NO_DOTS}
+      NO_SYSTEM_ENVIRONMENT_PATH
+    )
   else()
     find_library(PYTHON_LIBRARY
       NAMES
@@ -174,6 +191,17 @@ foreach(_CURRENT_VERSION ${_Python_VERSIONS})
         python${_CURRENT_VERSION}
         python${_CURRENT_VERSION_NOT_DOTS}
     )
+  elseif(VCPKG_TOOLCHAIN)
+    find_path(PYTHON_INCLUDE_DIR
+      NAMES Python.h
+      PATHS
+        "${PYTHON_ROOT_DIR}"
+      PATH_SUFFIXES
+        include
+        python${_CURRENT_VERSION}
+        python${_CURRENT_VERSION_NOT_DOTS}
+      NO_SYSTEM_ENVIRONMENT_PATH
+    )
   else()
     find_path(PYTHON_INCLUDE_DIR
       NAMES Python.h

include/libeval_compiler/libeval_compiler.h

@@ -29,6 +29,11 @@
 
 #include <base_units.h>
 
+#if defined(WIN32)
+// This gets leaked by python headers on MSVC only and will cause chaos
+#undef COMPILER
+#endif
+
 #define TR_OP_BINARY_MASK 0x200
 #define TR_OP_UNARY_MASK 0x100
 

pcbnew/swig/python_scripting.h

@@ -33,6 +33,10 @@
     #undef _XOPEN_SOURCE
 #endif
 
+#if defined(WIN32)
+    #undef pid_t    // wxWidgets defines this, python typedefs, result is a conflict
+#endif
+
 #undef HAVE_CLOCK_GETTIME  // macro is defined in Python.h and causes redefine warning
 #include <Python.h>
 #undef HAVE_CLOCK_GETTIME