Description: make the static libraries installable via the sendmail build system

--- a/libmilter/Makefile.m4
+++ b/libmilter/Makefile.m4
@@ -10,6 +10,7 @@ SMSRCDIR=ifdef(`confSMSRCDIR', `confSMSR
 PREPENDDEF(`confINCDIRS', `-I${SMSRCDIR} ')
 
 bldPRODUCT_START(`library', `libmilter')
+define(`bldINSTALL_DIR', `')
 define(`bldINSTALLABLE', `true')
 define(`LIBMILTER_EXTRAS', `errstring.c strl.c')
 APPENDDEF(`confENVDEF', `-DNOT_SENDMAIL -Dsm_snprintf=snprintf')
--- a/libsm/Makefile.m4
+++ b/libsm/Makefile.m4
@@ -6,6 +6,8 @@ define(`confREQUIRE_LIBSM', `true')
 define(`confREQUIRE_SM_OS_H', `true')
 PREPENDDEF(`confENVDEF', `confMAPDEF')
 bldPRODUCT_START(`library', `libsm')
+define(`bldINSTALL_DIR', `')
+define(`bldINSTALLABLE', `true')
 define(`bldSOURCES', ` assert.c debug.c errstring.c exc.c heap.c match.c rpool.c strdup.c strerror.c strl.c clrerr.c fclose.c feof.c ferror.c fflush.c fget.c fpos.c findfp.c flags.c fopen.c fprintf.c fpurge.c fput.c fread.c fscanf.c fseek.c fvwrite.c fwalk.c fwrite.c get.c makebuf.c put.c refill.c rewind.c setvbuf.c smstdio.c snprintf.c sscanf.c stdio.c strio.c ungetc.c vasprintf.c vfprintf.c vfscanf.c vprintf.c vsnprintf.c wbuf.c wsetup.c string.c stringf.c xtrap.c strto.c test.c strcasecmp.c strrevcmp.c signal.c clock.c config.c shm.c sem.c mbdb.c strexit.c cf.c ldap.c niprop.c mpeix.c memstat.c util.c inet6_ntop.c ')
 bldPRODUCT_END
 dnl msg.c
--- a/libsmutil/Makefile.m4
+++ b/libsmutil/Makefile.m4
@@ -8,6 +8,8 @@ PREPENDDEF(`confENVDEF', `confMAPDEF')
 PREPENDDEF(`confINCDIRS', `-I${SMSRCDIR} ')
 
 bldPRODUCT_START(`library', `libsmutil')
+define(`bldINSTALL_DIR', `')
+define(`bldINSTALLABLE', `true')
 define(`bldSOURCES', `debug.c err.c lockfile.c safefile.c snprintf.c cf.c ')
 APPENDDEF(`confENVDEF', `-DNOT_SENDMAIL')
 bldPRODUCT_END