Support BUILDVARS from cmd line in configure.llvm

Change-Id: I59527c60cb34c12fd2bed449b37bb812a83c4e42

minix/llvm/configure.llvm

@@ -105,15 +105,18 @@ fi
 ########################
 # Build Minix
 ########################
+export BUILDVARS=$(echo "${BUILDVARS} -V MKBITCODE=yes"| sed -e 's,-V MKMAGIC=yes,-V DBG=-g -V STRIPFLAG=-s -V CPPFLAGS=-D_MINIX_MAGIC=1,')
+
 if [ "${REBUILD_MINIX}" == "yes" ]; then
 
 	echo "Building Minix..."
 	echo "CC:$CC"
 	echo "CXX:$CXX"
 	echo "JOBS:$JOBS"
+	echo "BUILDVARS:$BUILDVARS"
 	echo 
 	cd ${MINIX_ROOT}
-	BUILDVARS="-V MKBITCODE=yes" ./releasetools/x86_hdimage.sh || EXITCODE=1
+	./releasetools/x86_hdimage.sh || EXITCODE=1
 	cd ${MYPWD}
 	if [ "$EXITCODE" != "0" ]; then
         	echo "Error: Failed building Minix source code."

share/mk/sys.mk

@@ -61,7 +61,11 @@ DBG?=	-O1 -fgcse -fstrength-reduce -fgcse-after-reload
 .else
 DBG?=	-O2
 .endif
+.if !defined(__MINIX)
 CFLAGS?=	${DBG}
+.else
+CFLAGS+=	${DBG}
+.endif # !defined(__MINIX)
 LDFLAGS?=
 COMPILE.c?=	${CC} ${CFLAGS} ${CPPFLAGS} -c
 LINK.c?=	${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}