makefiles: Suppress stray backslash warnings with grep 3.8

GNU grep 3.8 warns about "\#" when compiling. The "#" has to be
escaped for Makefiles and shell, but it isn't special to grep so
grep thinks it's an invalid escape sequence.

Change-Id: Ieb2607d42b7daa1939ca0101b915ec0c7afd4298

1 files changed, 3 insertions, 3 deletions

diff --git a/tools/functions.make b/tools/functions.make
index 518b945320..d9acbba2ba 100644
--- a/tools/functions.make
+++ b/tools/functions.make
@@ -15,11 +15,11 @@
 # The sed line is to prepend the directory to all source files
 
 preprocess = $(shell $(CC) $(PPCFLAGS) $(2) -E -P -x c -include config.h $(1) | \
-                grep -v '^\#' | grep -v "^ *$$" | \
+                grep -v '^#' | grep -v "^ *$$" | \
                 sed -e 's:^..*:$(dir $(1))&:')
 
-preprocess2file = $(SILENT)$(CC) $(PPCFLAGS) $(3) -E -P -x c -include config.h $(1) | \
-                grep -v '^\#' | grep -v "^$$" > $(2)
+preprocess2file = $(shell $(CC) $(PPCFLAGS) $(3) -E -P -x c -include config.h $(1) | \
+                grep -v '^#' | grep -v "^$$" > $(2))
 
 asmdefs2file = $(SILENT)$(CC) $(PPCFLAGS) $(3) -S -x c -o - -include config.h $(1) | \
         perl -ne 'if(/^_?AD_(\w+):$$/){$$var=$$1}else{/^\W\.(?:word|long)\W(.*)$$/ && $$var && print "\#define $$var $$1\n";$$var=0}' > $(2)