fix find depth arg so make doesn't spin cpu

diff --git a/doc/all.mk b/doc/all.mk
index c0f036b21ce01daf312b765ad3c998eaaeace04c..f94da741ca409755cdf93a09f7a73bdaf409950a 100644 (file)
--- a/doc/all.mk
+++ b/doc/all.mk
@@ -78,7 +78,7 @@ DOXYGEN_HTML_DIR = $(DOXYGEN_DIR)/html/
 #  We also prune the generated doxygen files, as there are too many of them
 #  and it slows down the build.
 #
-BASE_DOC_FILES := $(filter-out doc/doxygen/html/%,$(shell find $$(find doc -depth 1 '!' -type l) -type f))
+BASE_DOC_FILES := $(filter-out doc/doxygen/html/%,$(shell find $$(find doc -maxdepth 1 '!' -type l) -type f))
 DOC_FILES      := $(filter-out %~ %/all.mk %.gitignore doc/rfc/update.sh doc/developers/%,$(BASE_DOC_FILES))
 
 #