X-Git-Url: https://git.archive.openwrt.org/?a=blobdiff_plain;f=include%2Ftoplevel.mk;h=10b81049c5439b70d85b049d618096932f58fe27;hb=3e9ac890b24dc53a47bb93ba005569f7fd059061;hp=a623be9f2e69c3592ebe70275f8ffbdb15167c6c;hpb=870695cc86b7d78fafe2bde4e0201a24ad306093;p=openwrt.git

diff --git a/include/toplevel.mk b/include/toplevel.mk
index a623be9f2e..10b81049c5 100644
--- a/include/toplevel.mk
+++ b/include/toplevel.mk
@@ -43,6 +43,13 @@ unexport LPATH
 # make sure that a predefined CFLAGS variable does not disturb packages
 export CFLAGS=
 
+ifneq ($(shell $(HOSTCC) 2>&1 | grep clang),)
+  export HOSTCC_REAL?=$(HOSTCC)
+  export HOSTCC_WRAPPER:=$(TOPDIR)/scripts/clang-gcc-wrapper
+else
+  export HOSTCC_WRAPPER:=$(HOSTCC)
+endif
+
 ifeq ($(FORCE),)
   .config scripts/config/conf scripts/config/mconf: tmp/.prereq-build
 endif
@@ -74,12 +81,12 @@ prepare-tmpinfo: FORCE
 	fi
 
 scripts/config/mconf:
-	@$(_SINGLE)$(SUBMAKE) -s -C scripts/config all CC="$(HOSTCC)"
+	@$(_SINGLE)$(SUBMAKE) -s -C scripts/config all CC="$(HOSTCC_WRAPPER)"
 
 $(eval $(call rdep,scripts/config,scripts/config/mconf))
 
 scripts/config/conf:
-	@$(_SINGLE)$(SUBMAKE) -s -C scripts/config conf CC="$(HOSTCC)"
+	@$(_SINGLE)$(SUBMAKE) -s -C scripts/config conf CC="$(HOSTCC_WRAPPER)"
 
 config: scripts/config/conf prepare-tmpinfo FORCE
 	$< Config.in
@@ -149,6 +156,15 @@ prereq:: prepare-tmpinfo .config
 	@+$(MAKE) -r -s tmp/.prereq-build $(PREP_MK)
 	@+$(NO_TRACE_MAKE) -r -s $@
 
+ifeq ($(SDK),1)
+
+%::
+	@+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
+	@./scripts/config/conf --defconfig=.config Config.in
+	@+$(ULIMIT_FIX) $(SUBMAKE) -r $@
+
+else
+
 %::
 	@+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
 	@( \
@@ -160,6 +176,8 @@ prereq:: prepare-tmpinfo .config
 	)
 	@+$(ULIMIT_FIX) $(SUBMAKE) -r $@
 
+endif
+
 help:
 	cat README