pkg config windows must link ext with python lib

Author: Alexpux

Misc/python.pc.in

@@ -9,5 +9,5 @@ Description: Build a C extension for Python
 Requires:
 Version: @VERSION@
 Libs.private: @LIBS@
-Libs:
+Libs: -L${libdir} -lpython@VERSION@@ABIFLAGS@
 Cflags: -I${includedir}/python@VERSION@@ABIFLAGS@

configure.ac

@@ -5973,7 +5973,7 @@ AC_MSG_RESULT($LDVERSION)
 
 # On Android and Cygwin the shared libraries must be linked with libpython.
 AC_SUBST(LIBPYTHON)
-if test -n "$ANDROID_API_LEVEL" -o "$MACHDEP" = "cygwin"; then
+if test -n "$ANDROID_API_LEVEL" -o "$MACHDEP" = "cygwin" -o "$MACHDEP" = "win32"; then
   LIBPYTHON="-lpython${VERSION}${ABIFLAGS}"
 else
   LIBPYTHON=''