diff -up gtk-doc-1.9/gtk-doc.make.rebase gtk-doc-1.9/gtk-doc.make
--- gtk-doc-1.9/gtk-doc.make.rebase	2007-12-18 11:57:20.000000000 -0500
+++ gtk-doc-1.9/gtk-doc.make	2007-12-18 12:00:35.000000000 -0500
@@ -139,9 +139,8 @@ install-data-local:
 	  done; \
 	  echo '-- Installing $(srcdir)/html/index.sgml' ; \
 	  $(INSTALL_DATA) $(srcdir)/html/index.sgml $(DESTDIR)$(TARGET_DIR) || :; \
-	  if test `which gtkdoc-rebase` != ""; then \
-        gtkdoc-rebase --relative --dest-dir=$(DESTDIR) --html-dir=$(DESTDIR)$(TARGET_DIR) ; \
-	  fi \
+	  (which gtkdoc-rebase >& /dev/null && \
+            gtkdoc-rebase --relative --dest-dir=$(DESTDIR) --html-dir=$(DESTDIR)$(TARGET_DIR)) || : \
 	fi
 	
 
diff -up gtk-doc-1.9/gtk-doc.notmpl.make.rebase gtk-doc-1.9/gtk-doc.notmpl.make
--- gtk-doc-1.9/gtk-doc.notmpl.make.rebase	2007-12-18 11:59:06.000000000 -0500
+++ gtk-doc-1.9/gtk-doc.notmpl.make	2007-12-18 11:59:56.000000000 -0500
@@ -124,9 +124,8 @@ install-data-local:
 	  done; \
 	  echo '-- Installing $(srcdir)/html/index.sgml' ; \
 	  $(INSTALL_DATA) $(srcdir)/html/index.sgml $(DESTDIR)$(TARGET_DIR) || :; \
-	  if test `which gtkdoc-rebase` != ""; then \
+	  which gtkdoc-rebase > /dev/null && \
 	    gtkdoc-rebase --relative --dest-dir=$(DESTDIR) --html-dir=$(DESTDIR)$(TARGET_DIR) ; \
-	  fi \
 	fi
 
 uninstall-local: