error: unknown type name pthread_t

[Cmystall]

C language code compilation prompt "error: unknown type name pthread_t" in linux, do you know the reason for this error？ I hope to get your recovery as soon as possible, thank you？

[mdednev]

What are you trying to compile? This is bare hardware toolchain with newlib c library without actual pthread support. If you include pthread.h header (/usr/lib/microblaze-xilinx-elf/include/pthread.h) you could compile source with pthread library calls, but build process will fail at the linking stage due to missing pthread functions implementation.

[Cmystall]

Before compiling, temporary environment variables were added（/opt/2015.3/bin:/opt/2015.3/gnu/microblaze/lin/bin:/opt/2015.3/gnu/arm/lin/bin:/opt/2015.3/gnu/microblaze/linux_toolchain/lin64_be/bin:/opt/2015.3/gnu/microblaze/linux_toolchain/lin64_le/bin），"pthread.h"'s path of existence is "/opt/2015.3/gnu/microblaze/lin/microblaze-xilinx-elf/include/pthread.h"，Is it compilable? And there are also "pthread.h" in other paths, only the most similar paths are listed here. Thank you very much for your reply

[mdednev]

Toolchain from current repository doesn't need to add any environment variables to compile sources. It installs to the system default path (/usr/bin) and works seamlessly without any other system or environment tuning.

"pthread.h"'s path of existence is "/opt/2015.3/gnu/microblaze/lin/microblaze-xilinx-elf/include/pthread.h"，Is it compilable?

First of all, this file doesn't belong to the current repository toolchain. So, I suppose that you can compile you sources with this header file, but it seems very unlikely to that you will get successful linking due to missing pthread_* functions in your toolchain system libraries for bare hardware target (without OS like linux with multitasking and multithreading support).