I should look more through before starting to say stuff. So most of the stuff I mentioned is moot because it was moved to a different place that I was not aware of.
So Matt as Xiang mentioned the ARCHCXXFLAGS line should be
enough. Importend is the define of __NuttX__ because it enables
the necessary options for libcpp to compile.
regards
Marc Rosen
ZeitControl Cardsystems GmbH
Siedlerweg 39
D-32429 Minden
Tel. ++49 (0)571 50 52 222
Fax. ++49 (0)571 50 52 299
E-Mail ma...@zeitcontrol.de
Am 12.08.2020 um 08:32 schrieb Marc Rosen:
> Hi,
>
> i did a curiosity check on this.
> No Make.defs for STM32 boards on master from some what yesterday evening
> (my localtime) has any include
> definitions for c++.
>
> So to help Matt. the following is from my current config add this to
> your Make.defs in your /nuttx/nuttx folder:
>
> ARCHINCLUDESXX += ${shell $(INCDIR) -s "$(CC)" $(TOPDIR)$(DELIM)include}
> ARCHINCLUDESXX += ${shell $(INCDIR) -s "$(CC)"
> $(TOPDIR)$(DELIM)include$(DELIM)cxx}
> ARCHINCLUDESXX += ${shell $(INCDIR) -s "$(CC)"
> $(TOPDIR)$(DELIM)include$(DELIM)libcxx}
>
> ifeq ($(CONFIG_LIBCXX),y)
> ARCHCXXFLAGS += -std=c++17 -D__NuttX__ -D_LIBCPP_BUILD_STATIC
>
> ifneq ($(CONFIG_CXX_EXCEPTION),y)
> ARCHCXXFLAGS += -D_LIBCPP_NO_EXCEPTIONS
> endif
>
> ifeq ($(CONFIG_LIBCXX_BUILD_LIBRARY),y)
> ARCHCXXFLAGS += -D_LIBCPP_BUILDING_LIBARAY
> endif
>
> endif
>
> regards
>
> Marc Rosen
>
> ZeitControl Cardsystems GmbH
> Siedlerweg 39
> D-32429 Minden
> Tel. ++49 (0)571 50 52 222
> Fax. ++49 (0)571 50 52 299
> E-Mail ma...@zeitcontrol.de
>
> Am 12.08.2020 um 08:07 schrieb Xiang Xiao:
>> Do you have this in your boards/Make.defs:
>> ARCHCXXFLAGS += -D__NuttX__ -nostdinc++
>> Since there are many complex setting to make C++ library work on NuttX, but
>> this setting spread in different Make.defs, I plan to enhance the experience
>> in the next couple weeks(actually, all is done in our internal development
>> branch):
>> 1.Centralize the setting to arch/Toolchain.defs, so all boards will support
>> libc++/uClibc++ automatically.
>> 2.Upgrade to the latest uClibc++(already upstream) and libc++ without the
>> special NuttX hack
>> 3.Modify Makefile to automatically download the package from the official
>> release(uClibc++ already upstream)
>> 4.Enable all deconfig related to uClibc++/libc++ in the daily build system
>>
>>> -----Original Message-----
>>> From: Matt DeWall <mdew...@gmail.com>
>>> Sent: Wednesday, August 12, 2020 10:53 AM
>>> To: dev@nuttx.apache.org
>>> Subject: cpp cxx help - No thread API
>>>
>>> Hi devs! I'm getting started on NuttX and love the project. Looking to
>>> port my cpp project to NuttX.
>>>
>>> I'm having trouble compiling the CPP version of the hello world using the
>>> existing documentation. I'm able to build nuttx just fine and
>>> flash my device using the C version of Hello World.
>>>
>>> The error during CXX building is "No thread API"
>>>
>>>
>>> *Background:*
>>>
>>> I'm following the (latest?) directions here:
>>>
>>> https://github.com/apache/incubator-nuttx/
>>>
>>> I made my own docker image based on this Dockerfile which I understand
>>> nuttx is using for some part of ci/cid/testing:
>>>
>>> https://github.com/apache/incubator-nuttx-testing/blob/master/docker/linux/Dockerfile
>>>
>>> Running the following commands:
>>>
>>> git clone https://github.com/apache/incubator-nuttx.git nuttx git clone
>>> https://github.com/apache/incubator-nuttx-apps.git apps
>>>
>>> Then I configure for my own board (stm32f103rbt6) ./configure.sh
>>> nucleo-f103rb/nsh
>>>
>>> After "make menuconfig" and configuring the C hello world app, I'm able to
>>> build and flash my board and run "hello" just fine.
>>>
>>> This leads me to believe my toolchain is good to go.
>>>
>>>
>>> *Installing libcxx:*
>>>
>>> So moving on the c++ docs found here:
>>> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=139629545
>>> but they may be outdated?
>>>
>>> Running:
>>>
>>> git clone https://bitbucket.org/acassis/libcxx
>>> cd libcxx
>>> ./install /nuttx/nuttx
>>>
>>> "Installing LLVM/libcxx in the NuttX source treeInstallation succeeded"
>>>
>>> I skipped the other two lines in that guide because they seem to clone a
>>> different and older nuttx clone from Alan's repo.
>>>
>>>
>>> *Trying to implement c++:*
>>>
>>> Going over to make menuconfig and enabling the following options (and
>>> whatever comes with them)
>>>
>>> Libary Routines->Have C++ Compiler
>>>
>>> Libary Routines->Build LLVM libc++
>>>
>>> Applications->Hello World C++ example
>>>
>>> When I go to build I get a "No thread API"...
>>>
>>> make[2]: Entering directory '/nuttx/apps/examples/helloxx'In file included
>>> from /nuttx/nuttx/include/libcxx/cstdio:99,from
>>> ./helloxx_main.cxx:42:/nuttx/nuttx/include/libcxx/__config:845:4: error:
>>> #error "No thread API"845 | # error "No thread API"
>>>
>>> I've only seen a 3 year old post where some person was using their own
>>> toolchain, so I'm not clear on how to proceed.
>>>
>>> I think I need to include some extra things in my Make.defs but I'm usually
>>> working at a higher layer, I'm a medium-level linux person
>>> and have next to zero experience developing c/c++ apps on linux, but I"ve
>>> written plenty of apps on Windows.
>>>
>>> Really appreciate any help or insight you can provide, thanks!
>>>
>>> Matt
>
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