diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8422328..a8012cd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -93,6 +93,8 @@ PRIVATE
 	${CMAKE_CURRENT_SOURCE_DIR}/include
 )
 
+target_compile_definitions(msdfgen-ext PUBLIC MSDFGEN_CMAKE_BUILD)
+
 if(MSDFGEN_USE_CPP11)
 	target_compile_features(msdfgen-ext PUBLIC cxx_std_11)
 	target_compile_definitions(msdfgen-ext PUBLIC MSDFGEN_USE_CPP11)
diff --git a/ext/import-font.cpp b/ext/import-font.cpp
index 8f23620..966bc00 100644
--- a/ext/import-font.cpp
+++ b/ext/import-font.cpp
@@ -7,7 +7,7 @@
 #include FT_FREETYPE_H
 #include FT_OUTLINE_H
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(MSDFGEN_CMAKE_BUILD)
     #pragma comment(lib, "freetype.lib")
 #endif
 
diff --git a/ext/resolve-shape-geometry.cpp b/ext/resolve-shape-geometry.cpp
index 12e45a9..657018b 100644
--- a/ext/resolve-shape-geometry.cpp
+++ b/ext/resolve-shape-geometry.cpp
@@ -9,7 +9,7 @@
 #include "../core/edge-segments.h"
 #include "../core/Contour.h"
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(MSDFGEN_CMAKE_BUILD)
     #pragma comment(lib, "skia.lib")
 #endif