Has anyone tried to build the gRPC on QNX platform

[belanke...@gmail.com]

I am trying to cross compile the gRPC repo with QNX platform.

I followed the steps mentioned in guthub page. But I am facing an issue with C++ version compatibility.

Getting error message of #error "C++ versions less than C++11 are not supported."

Has anyone tried to build this for QNX arm platform?

[belanke...@gmail.com]

Here I am using gcc-5.4.0, which is c++11 standard. But still it is showing this error message.

Can anyone help me on this?

[Thomas Mercier]

https://gcc.gnu.org/onlinedocs/gcc-5.4.0/gcc/Standards.html#C_002b_002b-Language 

"The default, if no C++ language dialect options are given, is -std=gnu++98."

On Thu, Jun 11, 2020 at 8:49 PM <belanke...@gmail.com> wrote:

Here I am using gcc-5.4.0, which is c++11 standard. But still it is showing this error message.

Can anyone help me on this?

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[Phani B]

But I think it should be picking -std=c++11 as a CFLAG automatically right?

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[belanke...@gmail.com]

I am using -std=c++11 as CXXFLAGS. But still it is showing this error.

On Friday, June 12, 2020 at 9:27:51 AM UTC+5:30, Thomas Mercier wrote:

https://gcc.gnu.org/onlinedocs/gcc-5.4.0/gcc/Standards.html#C_002b_002b-Language 

"The default, if no C++ language dialect options are given, is -std=gnu++98."

On Thu, Jun 11, 2020 at 8:49 PM <belanke...@gmail.com> wrote:

Here I am using gcc-5.4.0, which is c++11 standard. But still it is showing this error message.

Can anyone help me on this?

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[Phani B]

I am facing not exactly same but a  related problem as well. For me even when I give -std=c++11flag, i get errors related to header file inclusion.

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[belanke...@gmail.com]

error: 'constexpr' does not name a type

error: '__to_gcc_order' is not a member of 'std::__1::__gcc_atomic'

these are the error message I am getting.

I am trying to do cross compilation on arm, using g++5.4.0

My toolchain.cmake file contains:

SET(CMAKE_SYSTEM_NAME QNX)

SET(CMAKE_SYSTEM_PROCESSOR arm)

set(CMAKE_CROSSCOMPILING 1)

set(CMAKE_C_COMPILER /usr/bin/aarch64-unknown-nto-qnx7.0.0-gcc-5.4.0)

set(CMAKE_CXX_COMPILER /usr/bin/aarch64-unknown-nto-qnx7.0.0-g++-5.4.0)

set(CMAKE_CXX_FLAGS "-std=c++11-O2 -DBUILDENV_qss -g -Os -march=armv8-a -mcpu=cortex-a57 -mtune=cortex-a57 \

        -fstack-protector-strong -DNDEBUG -DFMT_HEADER_ONLY -DVARIANT_le ")

On Friday, June 12, 2020 at 10:54:16 AM UTC+5:30, Phani B wrote:

I am facing not exactly same but a  related problem as well. For me even when I give -std=c++11flag, i get errors related to header file inclusion.

On Fri, 12 Jun 2020, 10:50 , <belanke...@gmail.com> wrote:

I am using -std=c++11 as CXXFLAGS. But still it is showing this error.

On Friday, June 12, 2020 at 9:27:51 AM UTC+5:30, Thomas Mercier wrote:

https://gcc.gnu.org/onlinedocs/gcc-5.4.0/gcc/Standards.html#C_002b_002b-Language 

"The default, if no C++ language dialect options are given, is -std=gnu++98."

On Thu, Jun 11, 2020 at 8:49 PM <belanke...@gmail.com> wrote:

Here I am using gcc-5.4.0, which is c++11 standard. But still it is showing this error message.

Can anyone help me on this?

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