X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=make%2Fly-rules.make;h=fbe81c281abe61c7c4de0a3caa5ecba3badb5847;hb=9ec7c79078944a94e2e9abbf8e1b3299c9706389;hp=0461e1b9c696c5c71fc738eb8e36b96512f76a29;hpb=746c786126bfca40e6ba47e0398253ae1e859436;p=lilypond.git

diff --git a/make/ly-rules.make b/make/ly-rules.make
index 0461e1b9c6..fbe81c281a 100644
--- a/make/ly-rules.make
+++ b/make/ly-rules.make
@@ -5,13 +5,14 @@ LYS_OUTPUT_OPTION= --lily-output-dir $(LYS_OUTPUT_DIR)
 LYS_OUTPUT_DIR=$(top-build-dir)/out/lybook-db
 LILYPOND_BOOK_FLAGS += $(LYS_OUTPUT_OPTION)
 $(outdir)/%.latex: %.doc $(INIT_LY_SOURCES) $(SCHEME_SOURCES)
-	LILYPOND_VERSION=$(TOPLEVEL_VERSION) $(PYTHON) $(LILYPOND_BOOK) $(LILYPOND_BOOK_INCLUDES) --process='$(LILYPOND_BOOK_PROCESS) $(LILYPOND_BOOK_LILYPOND_FLAGS)' --output=$(outdir) $(LILYPOND_BOOK_FLAGS) $<
+	LILYPOND_VERSION=$(TOPLEVEL_VERSION) $(PYTHON) $(LILYPOND_BOOK) $(LILYPOND_BOOK_INCLUDES) --process='$(LILYPOND_BOOK_PROCESS) $(LILYPOND_BOOK_LILYPOND_FLAGS)' --output=$(outdir) $(LILYPOND_BOOK_FLAGS) --redirect-lilypond-output $<
 
 
 # This allows -j make option while making sure only one lilypond-book instance
-# is running at the same time
+# is running at the same time, using GNU make's order-only prerequisites so
+# as to not create superficial dependencies between unrelated manuals.
 define CHAIN_RULE
-$(i)
+| $(i)
 $(i): 
 endef