From e7866e7c9879411417635dbebe7e2a1b9c6b02ee Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Wed, 11 Sep 2013 15:08:22 -0400
Subject: Update patch information.

---
diff --git a/patches/03_fix-bad-substitution.patch b/patches/03_fix-bad-substitution.patch
index 5f86556..8211614 100644
--- a/patches/03_fix-bad-substitution.patch
+++ b/patches/03_fix-bad-substitution.patch
@@ -1,23 +1,26 @@
-From: "P. J. McDermott" <pjm@nac.net>
-Description: Fix "bad substitution" errors in shell script
- sysdeps/unix/make-syscalls.sh and sysdeps/unix/Makefile use GNU Bash's
- "${parameter/pattern/string}" parameter expansion.  Non-Bash shells (e.g.
- BusyBox ash built with CONFIG_ASH_BASH_COMPAT disabled) don't support this
- syntax:
- .
+Author: "P. J. McDermott" <pjm@nac.net>
+Forwarded: https://sourceware.org/ml/libc-alpha/2013-09/msg00286.html
+Subject: Don't use Bash-specific ${parameter/pattern/string} expansion
+
+sysdeps/unix/make-syscalls.sh and sysdeps/unix/Makefile use GNU Bash's
+${parameter/pattern/string} parameter expansion.  Non-Bash shells (e.g.
+dash or BusyBox ash when built with CONFIG_ASH_BASH_COMPAT disabled)
+don't support this expansion syntax.  So glibc will fail to build when
+$(SHELL) expands to a path that isn't provided by Bash.
+
+An example build failure:
+
     for dir in [...]; do \
       test -f $dir/syscalls.list && \
       { sysdirs='[...]' \
         asm_CPP='gcc -c    -I[...]   -D_LIBC_REENTRANT -include include/libc-symbols.h       -DASSEMBLER  -g -Wa,--noexecstack   -E -x assembler-with-cpp' \
         /bin/sh sysdeps/unix/make-syscalls.sh $dir || exit 1; }; \
       test $dir = sysdeps/unix && break; \
-    done > /usr/src/eglibc_2.17~r22751+sip1-1/tmp/libcbuild/sysd-syscallsT
+    done > [build-dir]/sysd-syscallsT
     sysdeps/unix/make-syscalls.sh: line 273: syntax error: bad substitution
- .
- The following command will search the upstream source for this non-standard
- expansion:
- .
-     grep -ERn '\${[a-zA-Z0-9_]+/[^}]*/[^}]*}' tmp/src/libc
+
+This patch simply replaces the three instances of the Bash-only syntax
+in these files with an echo and sed command substitution.
 
 diff -Naur src.orig/libc/sysdeps/unix/make-syscalls.sh src/libc/sysdeps/unix/make-syscalls.sh
 --- src.orig/libc/sysdeps/unix/make-syscalls.sh	2012-12-02 16:11:45.000000000 -0500
--
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