Protection agains non-existing subdirectories for clean and clobber

targets.  On some platforms this would cause an infinite Make
recursion.  Also remove "Doc" from the SUBDIRSTOO variable, since it
no longer exists in the standard distribution.

diff --git a/Makefile.in b/Makefile.in
index f4f80ae28dc09d30035932bb9abaf2a6c9b6e67b..bfc2cd5402808c190644512634cab6eb9fa26f60 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -146,7 +146,7 @@ OPT=                @OPT@
 SUBDIRS=       Parser Objects Python Modules
 
 # Other subdirectories
-SUBDIRSTOO=    Include Lib Doc Misc Demo Grammar
+SUBDIRSTOO=    Include Lib Misc Demo Grammar
 
 # Files and directories to be distributed
 CONFIGFILES=   configure configure.in acconfig.h config.h.in Makefile.in
@@ -485,11 +485,13 @@ localclean:
 
 clean:         localclean
                -for i in $(SUBDIRS); do \
+                   if test -d $$i; then \
                        (echo making clean in subdirectory $$i; cd $$i; \
                         if test -f Makefile; \
                         then $(MAKE) clean; \
                         else $(MAKE) -f Makefile.*in clean; \
                         fi); \
+                   else true; fi; \
                done
 
 localclobber:  localclean
@@ -498,11 +500,13 @@ localclobber:     localclean
 
 clobber:       localclobber
                -for i in $(SUBDIRS); do \
+                   if test -d $$i; then \
                        (echo clobbering subdirectory $$i; cd $$i; \
                         if test -f Makefile; \
                         then $(MAKE) clobber; \
-                        else $(MAKE) -f $(srcdir)/Makefile.in clobber; \
+                        else $(MAKE) -f $(srcdir)/Makefile*.in clobber; \
                         fi); \
+                   else true; fi; \
                done
 
 # Make things extra clean, before making a distribution: