A convenience snippet to ease attaching a debugger when compiled with "make debug"

gistfile1.diff

--- a/rpython/translator/c/genc.py      Sun Dec 21 17:45:01 2014 +0200
+++ b/rpython/translator/c/genc.py      Thu Dec 18 07:07:00 2014 +0200
@@ -462,7 +462,7 @@

         else:
             if self.translator.platform.name == 'msvc':
-                mk.definition('DEBUGFLAGS', '-MD -Zi')
+                mk.definition('DEBUGFLAGS', '-MD -Zi -D_DEBUG')
             else:
                 if self.config.translation.shared:
                     mk.definition('DEBUGFLAGS', '-O1 -g -fPIC')
diff -r 0422bc7c7898 -r b6e8b40a0f51 rpython/translator/c/src/entrypoint.c
--- a/rpython/translator/c/src/entrypoint.c     Sun Dec 21 17:45:01 2014 +0200
+++ b/rpython/translator/c/src/entrypoint.c     Thu Dec 18 07:07:00 2014 +0200
@@ -81,6 +81,13 @@

 int PYPY_MAIN_FUNCTION(int argc, char *argv[])
 {
+#if defined _WIN32 && defined _DEBUG
+    int c;
+    printf("Now would be a good time to 'attach to process' in a debugger\n");
+    printf("Press any key to continue ...");
+    c = _getch();
+    printf(" thanks\n");
+#endif
 #ifdef PYPY_X86_CHECK_SSE2_DEFINED
     pypy_x86_check_sse2();
 #endif