[yocto] cmake / <string> no such file or directory ??!

[Guy Morand]

Sorry Yocto developers!

I have found the issue, in my CMakeLists.txt, I changed this:
set(CMAKE_CXX_FLAGS "-Wall -Wextra -Werror")

to this:
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Werror")

Now it works like a charm, stupid me :D! Sorry for all the noise!

Best regards,

Guy Morand

On 2/5/19 8:21 AM, Guy Morand wrote:

> Hello Yocto developpers!
>
> I'm facing a weird problem that seems very strange. I can 
> cross-compile a project based on cmake with the generated Yocto SDK.
>
> However, after adding a recipe, the compilation fails:
> /mnt/ssd/yocto-build-script/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/communication-library/git-AUTOINC+f5cd493ce5-r0/recipe-sysroot-native/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ 
> -Dcommunication_interface_EXPORTS 
> -I/mnt/ssd/yocto-build-script/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/communication-library/git-AUTOINC+f5cd493ce5-r0/git/library 
> -Wall -Wextra -Werror -fPIC   -std=gnu++11 -MD -MT 
> CMakeFiles/communication-interface.dir/communication_interface.cpp.o 
> -MF 
> CMakeFiles/communication-interface.dir/communication_interface.cpp.o.d 
> -o 
> CMakeFiles/communication-interface.dir/communication_interface.cpp.o 
> -c 
> /mnt/ssd/yocto-build-script/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/communication-library/git-AUTOINC+f5cd493ce5-r0/git/communication_interface.cpp
> | In file included from 
> /mnt/ssd/yocto-build-script/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/communication-library/git-AUTOINC+f5cd493ce5-r0/git/communication_interface.cpp:1:
> | 
> /mnt/ssd/yocto-build-script/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/communication-library/git-AUTOINC+f5cd493ce5-r0/git/library/communication_interface.h:4:10: 
> fatal error: string: No such file or directory
> |  #include <string>
> |           ^~~~~~~~
> | compilation terminated.
>
> I also tried to change the cmake generator to unix makefile (who knows 
> ...):
> OECMAKE_GENERATOR = "Unix Makefiles"
>
> But I have the same issue. I am working on the thud branch. Anyone had 
> the same problem? What am I doing wrong?
>
> Best regards,
>
> Guy Morand
>