[Buildroot] [PATCH v7 1/1] libcpprestsdk: new package

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Hello,

On Sat, 30 Dec 2017 14:16:55 -0500, Adam Duskett wrote:
> The C++ REST SDK is a Microsoft project for cloud-based client-server
> communication in native code using a modern asynchronous C++ API design.
> This project aims to help C++ developers connect to and interact with
> services.
> 
> This package is licensed under the MIT package and depends on BOOST
> and OpenSSL/LibreSSL.
> 
> Signed-off-by: Adam Duskett <Adamduskett@outlook.com>

As discussed on IRC, this fails to build with the following defconfig:

BR2_arm=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-full-2017.11-rc1.tar.bz2"
BR2_TOOLCHAIN_EXTERNAL_GCC_4_9=y
BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_10=y
BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
BR2_TOOLCHAIN_EXTERNAL_CXX=y
BR2_INIT_NONE=y
BR2_SYSTEM_BIN_SH_NONE=y
# BR2_PACKAGE_BUSYBOX is not set
BR2_PACKAGE_LIBCPPRESTSDK=y
# BR2_TARGET_ROOTFS_TAR is not set

It fails with:

>>> libcpprestsdk v2.10.1 Building
PATH="/home/thomas/projets/buildroot/output/host/bin:/home/thomas/projets/buildroot/output/host/sbin:/usr/local/bin:/usr/bin:/bin:/home/thomas/.rvm/bin:/usr/local/sbin:/usr/sbin:/home/thomas/.rvm/bin:/home/thomas/sys/bin:/home/thomas/.gem/ruby/2.1.0/bin:/home/thomas/.rvm/bin"  /usr/bin/make -j5  -C /home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release
Scanning dependencies of target cpprest
[  4%] Building CXX object src/CMakeFiles/cpprest.dir/http/client/http_client_msg.cpp.o
[  6%] Building CXX object src/CMakeFiles/cpprest.dir/http/client/x509_cert_utilities.cpp.o
[  6%] Building CXX object src/CMakeFiles/cpprest.dir/http/client/http_client.cpp.o
[ 10%] Building CXX object src/CMakeFiles/cpprest.dir/http/common/http_helpers.cpp.o
[ 10%] Building CXX object src/CMakeFiles/cpprest.dir/http/common/http_msg.cpp.o
In file included from /home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/src/pch/stdafx.h:94:0,
                 from /home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/src/http/common/http_helpers.cpp:14:
/home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/include/pplx/pplxtasks.h:923:46: error: ?exception_ptr? in namespace ?std? does not name a type
         explicit _ExceptionHolder(const std::exception_ptr& _E, const _TaskCreationCallstack &_stackTrace) :
                                              ^
/home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/include/pplx/pplxtasks.h:971:14: error: ?exception_ptr? in namespace ?std? does not name a type
         std::exception_ptr _M_stdException;
              ^
/home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/include/pplx/pplxtasks.h: In constructor ?pplx::details::_ExceptionHolder::_ExceptionHolder(const int&, const pplx::details::_TaskCreationCallstack&)?:
/home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/include/pplx/pplxtasks.h:924:34: error: class ?pplx::details::_ExceptionHolder? does not have any field named ?_M_stdException?
         _M_exceptionObserved(0), _M_stdException(_E), _M_stackTrace(_stackTrace)
                                  ^
/home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/include/pplx/pplxtasks.h: In member function ?void pplx::details::_ExceptionHolder::_RethrowUserException()?:
/home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/include/pplx/pplxtasks.h:963:13: error: ?rethrow_exception? is not a member of ?std?
             std::rethrow_exception(_M_stdException);
             ^
/home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/include/pplx/pplxtasks.h:963:36: error: ?_M_stdException? was not declared in this scope
             std::rethrow_exception(_M_stdException);
                                    ^
/home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/include/pplx/pplxtasks.h: In member function ?virtual void pplx::details::_PPLTaskHandle<_ReturnType, _DerivedTaskHandle, _BaseTaskHandle>::invoke() const?:
/home/thomas/projets/buildroot/output/build/libcpprestsdk-v2.10.1/Release/include/pplx/pplxtasks.h:1655:48: error: ?current_exception? is not a member of ?std?
                 _M_pTask->_CancelWithException(std::current_exception());
                                                ^
Interestingly, it is the same error I had when building opentracing-cpp
with the same toolchain. Building with the Linaro ARM toolchain works
fine however.

Could you test this package with ./utils/test-pkg before submitting the
next version ?

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com