diff --git a/libbb/Makefile.in b/libbb/Makefile.in
index 4d3fd71b1..06daf232c 100644
--- a/libbb/Makefile.in
+++ b/libbb/Makefile.in
@@ -67,7 +67,7 @@ LIBBB_MOBJ1:=xmalloc.o xrealloc.o xcalloc.o xstrdup.o xstrndup.o \
 	xferror.o xferror_stdout.o xfflush_stdout.o strlen.o
 
 LIBBB_MSRC2:=$(LIBBB_DIR)printf.c
-LIBBB_MOBJ2:=vfprintf.o vprintf.o fprintf.o printf.o
+LIBBB_MOBJ2:=bb_vfprintf.o bb_vprintf.o bb_fprintf.o bb_printf.o
 
 LIBBB_MSRC3:=$(LIBBB_DIR)xgetularg.c
 LIBBB_MOBJ3:=xgetularg_bnd_sfx.o xgetlarg_bnd_sfx.o getlarg10_sfx.o \
diff --git a/libbb/printf.c b/libbb/printf.c
index 686257699..923c5a1a4 100644
--- a/libbb/printf.c
+++ b/libbb/printf.c
@@ -125,7 +125,7 @@
 #error Your stdio library is currently not supported.  Please see the commented source.
 #endif
 
-#ifdef L_vfprintf
+#ifdef L_bb_vfprintf
 extern int bb_vfprintf(FILE * __restrict stream,
 					   const char * __restrict format,
 					   va_list arg)
@@ -140,14 +140,14 @@ extern int bb_vfprintf(FILE * __restrict stream,
 }
 #endif
 
-#ifdef L_vprintf
+#ifdef L_bb_vprintf
 extern int bb_vprintf(const char * __restrict format, va_list arg)
 {
 	return bb_vfprintf(stdout, format, arg);
 }
 #endif
 
-#ifdef L_fprintf
+#ifdef L_bb_fprintf
 extern int bb_fprintf(FILE * __restrict stream,
 					  const char * __restrict format, ...)
 {
@@ -162,7 +162,7 @@ extern int bb_fprintf(FILE * __restrict stream,
 }
 #endif
 
-#ifdef L_printf
+#ifdef L_bb_printf
 extern int bb_printf(const char * __restrict format, ...)
 {
 	va_list arg;