make -f Makefile.micro regen_uconfig
-to regenerate uconfig.h.
+to regenerate uconfig.h. If your compilation platform is not 32-bit
+little-endian (like x86), you might want to try
+
+ make -f Makefile.micro patch_uconfig
+
+*before* the "make -f Makefile.micro". This tries to minimally patch
+the uconfig.sh using your *current* Perl so that your microperl has
+the correct basic types and sizes and byteorder.
+