From 319b53dd1c177891990d7436fd89f987abe0d1bc Mon Sep 17 00:00:00 2001
From: Thien-Thi Nguyen <ttn@gnuvola.org>
Date: Wed, 18 Aug 2010 19:34:46 +0200
Subject: [PATCH] [build] Fix sed portability bug: Don't use '\n' in sed
 script.

Regression introduced 2010-07-22, "[build] Overhaul
<errno.h>, <signal.h> cpp symbol extraction/checking".
See: <http://autobuild.josefsson.org/guile/log-201008181002653292000.txt>

* libguile/Makefile.am (.syms.c): Convert
  one-liner sed script to while-read-echo loop.
---
 libguile/Makefile.am | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/libguile/Makefile.am b/libguile/Makefile.am
index f12c11b56..fbc1efd04 100644
--- a/libguile/Makefile.am
+++ b/libguile/Makefile.am
@@ -721,10 +721,15 @@ MKDEP = gcc -M -MG $(DEFS) $(AM_CPPFLAGS) $(CPPFLAGS) $(CFLAGS)
 #	#ifdef SYMBOL
 #	scm_c_define ("SYMBOL", scm_from_int (SYMBOL));
 #	#endif
-# writing output to foo.c.
+# writing output to foo.c.  We use a while-read loop instead of a
+# one-line sed script because some seds (e.g., FreeBSD) don't read
+# '\n' as a newline (like GNU sed does).  Sad, but true.
 .syms.c:
-	sed 's/.*/#ifdef &\nscm_c_define ("&", scm_from_int (&));\n#endif/' \
-	  $< > $@T
+	cat $< | while read sym ; do					\
+	  echo "#ifdef $$sym" ;						\
+	  echo "scm_c_define (\"$$sym\", scm_from_int ($$sym));" ;	\
+	  echo "#endif" ;						\
+	done > $@T
 	mv $@T $@
 
 # Write $(srcdir)/cpp-{E,SIG}.syms.NEW if there are any not-yet-seen