# This forces make to use bash rather than whatever /bin/sh is linked to.
# There are some bash extensions used in the build (and maybe this needs
# fixing) and when /bin/sh isn't bash, then the build fails mysteriously.
Index: um/arch/um/Makefile
===================================================================
--- um.orig/arch/um/Makefile	2004-09-10 12:13:05.000000000 -0400
+++ um/arch/um/Makefile	2004-09-14 01:26:31.000000000 -0400
@@ -29,6 +29,10 @@
 
 include/linux/version.h: arch/$(ARCH)/Makefile
 
+# We require bash because the vmlinux link and loader script cpp use bash
+# features.
+SHELL := /bin/bash
+
 # Recalculate MODLIB to reflect the EXTRAVERSION changes (via KERNELRELEASE)
 # The way the toplevel Makefile is written EXTRAVERSION is not supposed
 # to be changed outside the toplevel Makefile, but recalculating MODLIB is