Any "__config" include is not finding features.h header

[aricooperman]

I have a C++ file including , using both an Ubuntu 16 and Windows 10 build host, and using both the 2,0 release and building it from source (pulled on 2/22) all fail with same issue:

Windows:

C:\cheerp\bin\clang++.exe -target cheerp -cheerp-mode=wasm -cheerp-wasm-loader=test.js -O2 -o xxx_wasm.wasm xxx_wasm.cpp
In file included from xxx_wasm.cpp:5:
In file included from C:\cheerp\bin/../include/c++/v1\string:453:
C:\cheerp\bin/../include/c++/v1\__config:350:10: fatal error: 'features.h' file not found
#include <features.h>

Ubuntu:

/opt/cheerp/bin/clang++ -target cheerp -cheerp-mode=wasm -cheerp-wasm-loader=test.js -O2 -o xxx_wasm.wasm xxx_wasm.cpp
In file included from xxx_wasm.cpp:5:
In file included from /opt/cheerp/bin/../include/c++/v1/string:453:
/opt/cheerp/bin/../include/c++/v1/__config:350:10: fatal error: 'features.h' file not found
#include <features.h>

Error is same for 2.0 release and recent build from source

[alexp-sssup]

What headers are being included before <string>? most probably one of them is defining something invalid, most probably the __linux__ macro.

[alexp-sssup]

Can you test with a stripped down file like this:

#include <string>

void webMain()
{
}

[aricooperman]

What headers are being included before <string>? most probably one of them is defined something invalid, most probably the __linux__ macro.

You are right, we had a __linux__ define before, when I reverse order it includes fine. Thanks!