+/* Test whether mmap() and mprotect() are available.
+ We don't use HAVE_MMAP, because AC_FUNC_MMAP would not define it on HP-UX.
+ HAVE_MPROTECT is not enough, because mingw does not have mmap() but has an
+ mprotect() function in libgcc.a. */
+#if HAVE_SYS_MMAN_H && HAVE_MPROTECT