fix: use universal way of passing version

setup.py

@@ -13,9 +13,6 @@
 
 __version__ = "0.0.1"
 
-# Windows strips quotes
-wrap = r'\"{}\"' if sys.platform.startswith("win") else '"{}"'
-
 # The main interface is through Pybind11Extension.
 # * You can add cxx_std=11/14/17, and then build_ext can be removed.
 # * You can set include_pybind11=false to add the include directory yourself,
@@ -29,7 +26,7 @@
     Pybind11Extension("python_example",
         ["src/main.cpp"],
         # Example: passing in the version to the compiled code
-        define_macros = [('VERSION_INFO', wrap.format(__version__))],
+        define_macros = [('VERSION_INFO', __version__)],
         ),
 ]
 

src/main.cpp

@@ -1,5 +1,8 @@
 #include <pybind11/pybind11.h>
 
+#define STRINGIFY(x) #x
+#define MACRO_STRINGIFY(x) STRINGIFY(x)
+
 int add(int i, int j) {
     return i + j;
 }
@@ -33,7 +36,7 @@ PYBIND11_MODULE(python_example, m) {
     )pbdoc");
 
 #ifdef VERSION_INFO
-    m.attr("__version__") = VERSION_INFO;
+    m.attr("__version__") = MACRO_STRINGIFY(VERSION_INFO);
 #else
     m.attr("__version__") = "dev";
 #endif