configure: Check for ms_hook_prologue attribute support.
diff --git a/configure b/configure
index 72251ba..dae14db 100755
--- a/configure
+++ b/configure
@@ -11702,6 +11702,44 @@
EXTRACFLAGS="$EXTRACFLAGS -Werror"
fi
fi
+
+ saved_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -Werror"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ms_hook_prologue attribute" >&5
+$as_echo_n "checking for ms_hook_prologue attribute... " >&6; }
+if test "${ac_cv_have_ms_hook_prologue+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+int __attribute__((__ms_hook_prologue__)) test(void) { return 0; }
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_have_ms_hook_prologue="yes"
+else
+ ac_cv_have_ms_hook_prologue="no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have_ms_hook_prologue" >&5
+$as_echo "$ac_cv_have_ms_hook_prologue" >&6; }
+ CFLAGS="$saved_CFLAGS"
+ if test "$ac_cv_have_ms_hook_prologue" = "yes"
+ then
+
+$as_echo "#define DECLSPEC_HOTPATCH __attribute__((__ms_hook_prologue__))" >>confdefs.h
+
+ else
+ $as_echo "#define DECLSPEC_HOTPATCH /* */" >>confdefs.h
+
+ fi
fi
