diff --git a/components/mbedtls/port/include/mbedtls/esp_debug.h b/components/mbedtls/port/include/mbedtls/esp_debug.h
index bf39cc73b..8e23a5ea3 100644
--- a/components/mbedtls/port/include/mbedtls/esp_debug.h
+++ b/components/mbedtls/port/include/mbedtls/esp_debug.h
@@ -11,6 +11,12 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+#ifndef _ESP_DEBUG_H_
+#define _ESP_DEBUG_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #include "sdkconfig.h"
 #ifdef CONFIG_MBEDTLS_DEBUG
@@ -43,3 +49,9 @@ void mbedtls_esp_disable_debug_log(mbedtls_ssl_config *conf);
 
 
 #endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ESP_DEBUG_H__ */
diff --git a/components/ulp/include/esp32/ulp.h b/components/ulp/include/esp32/ulp.h
index 302a47a0c..ae539d84d 100644
--- a/components/ulp/include/esp32/ulp.h
+++ b/components/ulp/include/esp32/ulp.h
@@ -266,9 +266,9 @@ _Static_assert(sizeof(ulp_insn_t) == 4, "ULP coprocessor instruction size should
  * Delay (nop) for a given number of cycles
  */
 #define I_DELAY(cycles_) { .delay = {\
-    .opcode = OPCODE_DELAY, \
+    .cycles = cycles_, \
     .unused = 0, \
-    .cycles = cycles_ } }
+    .opcode = OPCODE_DELAY } }
 
 /**
  * Halt the coprocessor.
diff --git a/docs/api-guides/build-system.rst b/docs/api-guides/build-system.rst
index f3d6153ca..2ef47a468 100644
--- a/docs/api-guides/build-system.rst
+++ b/docs/api-guides/build-system.rst
@@ -156,7 +156,7 @@ Minimal Component Makefile
 
 The minimal ``component.mk`` file is an empty file(!). If the file is empty, the default component behaviour is set:
 
-- All source files in the same directory as the makefile (``*.c``, ``*.cpp``, ``*.S``) will be compiled into the component library
+- All source files in the same directory as the makefile (``*.c``, ``*.cpp``, ``*.cc``, ``*.S``) will be compiled into the component library
 - A sub-directory "include" will be added to the global include search path for all other components.
 - The component library will be linked into the project app.
 
diff --git a/make/component_wrapper.mk b/make/component_wrapper.mk
index 84edc0a83..cc0afaa05 100644
--- a/make/component_wrapper.mk
+++ b/make/component_wrapper.mk
@@ -85,11 +85,12 @@ include $(COMPONENT_MAKEFILE)
 ifndef COMPONENT_CONFIG_ONLY  # Skip steps 3-5 if COMPONENT_CONFIG_ONLY is set
 
 # Object files which need to be linked into the library
-# By default we take all .c, .cpp & .S files in COMPONENT_SRCDIRS.
+# By default we take all .c, .cpp, .cc & .S files in COMPONENT_SRCDIRS.
 ifndef COMPONENT_OBJS
 # Find all source files in all COMPONENT_SRCDIRS
 COMPONENT_OBJS := $(foreach compsrcdir,$(COMPONENT_SRCDIRS),$(patsubst %.c,%.o,$(wildcard $(COMPONENT_PATH)/$(compsrcdir)/*.c)))
 COMPONENT_OBJS += $(foreach compsrcdir,$(COMPONENT_SRCDIRS),$(patsubst %.cpp,%.o,$(wildcard $(COMPONENT_PATH)/$(compsrcdir)/*.cpp)))
+COMPONENT_OBJS += $(foreach compsrcdir,$(COMPONENT_SRCDIRS),$(patsubst %.cc,%.o,$(wildcard $(COMPONENT_PATH)/$(compsrcdir)/*.cc)))
 COMPONENT_OBJS += $(foreach compsrcdir,$(COMPONENT_SRCDIRS),$(patsubst %.S,%.o,$(wildcard $(COMPONENT_PATH)/$(compsrcdir)/*.S)))
 # Make relative by removing COMPONENT_PATH from all found object paths
 COMPONENT_OBJS := $(patsubst $(COMPONENT_PATH)/%,%,$(COMPONENT_OBJS))
@@ -221,6 +222,11 @@ $(1)/%.o: $$(COMPONENT_PATH)/$(1)/%.cpp $(COMMON_MAKEFILES) $(COMPONENT_MAKEFILE
 	$$(CXX) $$(CXXFLAGS) $$(CPPFLAGS) $$(addprefix -I,$$(COMPONENT_INCLUDES)) $$(addprefix -I,$$(COMPONENT_EXTRA_INCLUDES)) -I$(1) -c $$< -o $$@
 	$(call AppendSourceToDependencies,$$<,$$@)
 
+$(1)/%.o: $$(COMPONENT_PATH)/$(1)/%.cc $(COMMON_MAKEFILES) $(COMPONENT_MAKEFILE) | $(COMPONENT_SRCDIRS)
+	$$(summary) CXX $$(patsubst $$(PWD)/%,%,$$(CURDIR))/$$@
+	$$(CXX) $$(CXXFLAGS) $$(CPPFLAGS) $$(addprefix -I,$$(COMPONENT_INCLUDES)) $$(addprefix -I,$$(COMPONENT_EXTRA_INCLUDES)) -I$(1) -c $$< -o $$@
+	$(call AppendSourceToDependencies,$$<,$$@)
+
 $(1)/%.o: $$(COMPONENT_PATH)/$(1)/%.S $(COMMON_MAKEFILES) $(COMPONENT_MAKEFILE) | $(COMPONENT_SRCDIRS)
 	$$(summary) AS $$(patsubst $$(PWD)/%,%,$$(CURDIR))/$$@
 	$$(CC) $$(CPPFLAGS) $$(DEBUG_FLAGS) $$(addprefix -I ,$$(COMPONENT_INCLUDES)) $$(addprefix -I ,$$(COMPONENT_EXTRA_INCLUDES)) -I$(1) -c $$< -o $$@