libelf:use self hosted m4.

Change-Id: Ia836aa6c43d7ccbb02047e63424923fdc74eb42d

diff --git a/lib/libelf/Makefile b/lib/libelf/Makefile
index 950233e2806ad74d91ded42479cec6f8ade96554..b6bb20c6af8ff26235ad775b2be6c7b600f42fc4 100644 (file)
--- a/lib/libelf/Makefile
+++ b/lib/libelf/Makefile
@@ -167,4 +167,4 @@ INCSDIR= /usr/include
 # Keep the .SUFFIXES line after the include of bsd.lib.mk
 .SUFFIXES:     .m4 .c
 .m4.c:
-       m4 -D SRCDIR=${.CURDIR} ${.IMPSRC} > ${.TARGET}
+       ${TOOL_M4} -D SRCDIR=${.CURDIR} ${.IMPSRC} > ${.TARGET}