Tweak the shell scripting for descending into and building subdirs.

In general, use this:
	@for dir in $(SUBDIRS) ; do \
		if [ -d $$dir ] ; then \
			(cd $$dir && $(MAKE)) || exit 1; \
		fi \
	done

Basically, silently skip missing subdirs but generate an error and stop if
there's a compilation or install problem.
This was done inconsistantly before.  In once case, a missing subdir was
causing us to go into an infinte loop!

1 files changed, 2 insertions, 2 deletions

diff --git a/progs/Makefile b/progs/Makefile
index d5ec17d43e..5e705efa7e 100644
--- a/progs/Makefile
+++ b/progs/Makefile
@@ -17,7 +17,7 @@ message:
 subdirs:
 	@for dir in $(SUBDIRS) ; do \
 		if [ -d $$dir ] ; then \
-			(cd $$dir ; $(MAKE)) || exit 1 ; \
+			(cd $$dir && $(MAKE)) || exit 1 ; \
 		fi \
 	done
 
@@ -27,6 +27,6 @@ install:
 clean:
 	@for dir in $(SUBDIRS) tests ; do \
 		if [ -d $$dir ] ; then \
-			(cd $$dir ; $(MAKE) clean) ; \
+			(cd $$dir && $(MAKE) clean) ; \
 		fi \
 	done