X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/sod/blobdiff_plain/12ec2c344df0072023cc8f59c98fb585ac967f1e..ff63c0b2b74b248cedef5df0f1730c9a75701b67:/vars.am

diff --git a/vars.am b/vars.am
index 21f03ce..af6c14e 100644
--- a/vars.am
+++ b/vars.am
@@ -92,8 +92,8 @@ V_SOD_h_0		 = @echo "  SOD[h]   $@";
 
 ## Build rules.
 SUFFIXES		+= .c .h .sod
-.sod.c:; $(V_SOD_c)$(SOD) -tc $<
-.sod.h:; $(V_SOD_h)$(SOD) -th $<
+.sod.c:; $(V_SOD_c)$(SOD) -M -tc $<
+.sod.h:; $(V_SOD_h)$(SOD) -M -th $<
 %.c: %.sod $(SOD); $(V_SOD_c)$(SOD) -M -tc $<
 %.h: %.sod $(SOD); $(V_SOD_h)$(SOD) -M -th $<