updated libigl.cmake

Former-commit-id: 9fc184f64b3fdcf64df4ab39c705dffe2f7398b3

shared/cmake/libigl.cmake

@@ -58,7 +58,17 @@ target_compile_features(igl_common INTERFACE ${CXX11_FEATURES})
 # Other compilation flags
 if(MSVC)
   # Enable parallel compilation for Visual Studio
-  target_compile_options(igl_common INTERFACE /MP /bigobj)
+   target_compile_options(
+                          igl_common INTERFACE 
+                          "/MP" "/bigobj"
+                          )
+  if(LIBIGL_WITH_CGAL)
+    target_compile_options(
+	                      igl_common INTERFACE 
+                          "$<$<CONFIG:Release>:/MD>" 
+                          "$<$<CONFIG:Debug>:/MDd>"
+						  )
+  endif()
 endif()
 
 if(BUILD_SHARED_LIBS)
@@ -134,9 +144,15 @@ if(LIBIGL_WITH_CGAL)
   # `Exact_predicates_exact_constructions_kernel_with_sqrt`
   find_package(CGAL COMPONENTS Core)
   if(CGAL_FOUND)
+	if(WIN32 AND LIBIGL_USE_STATIC_LIBRARY)
+		message(FATAL_ERROR "Compiling a static version of libigl with CGAL is not supported on Windows.")
+	endif()
     compile_igl_module("cgal" "copyleft/")
     find_package(Boost 1.48 REQUIRED thread system)
-    target_include_directories(igl_cgal ${IGL_SCOPE} ${CGAL_INCLUDE_DIRS})
+	target_include_directories(igl_cgal ${IGL_SCOPE} ${CGAL_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})
+	if(WIN32)
+		target_include_directories(igl_cgal ${IGL_SCOPE} "${CGAL_INCLUDE_DIRS}/../auxiliary/gmp/include")
+	endif()
     target_link_libraries(igl_cgal ${IGL_SCOPE} CGAL::CGAL CGAL::CGAL_Core ${Boost_LIBRARIES})
   else()
     set(LIBIGL_WITH_CGAL OFF CACHE BOOL "" FORCE)