[PATCH v2 1/3] posix: Add internal symbols for posix_spawn interface

[Florian Weimer]

* Adhemerval Zanella:

> This patch adds internal hidden definition for mostly of the posix_spawn
> function so it can be used internally on both popen and system
> implementations.
>
> Checked on x86_64-linux-gnu.
>
> 	* include/spawn.h (__posix_spawn, posix_spawn_file_actions_addclose,
> 	__posix_spawn_file_actions_adddup2, __posix_spawn_file_actions_destroy,
> 	__posix_spawn_file_actions_init, __posix_spawnattr_init,
> 	__posix_spawnattr_destroy, __posix_spawnattr_setflags,
> 	__posix_spawnattr_setsigdefault, __posix_spawnattr_setsigmask): New
> 	prototype.
> 	* posix/spawn.c (__posix_spawn): Add libc_hidden_def.
> 	* posix/spawn_faction_addclose.c
> 	(__posix_spawn_file_actions_addclose): Add hidden definition.
> 	* posix/spawn_faction_adddup2.c
> 	(__posix_spawn_file_actions_adddup2): Likewise.
> 	* posix/spawn_faction_destroy.c
> 	(__posix_spawn_file_actions_destroy): Likewise.
> 	* posix/spawn_faction_init.c (__posix_spawn_file_actions_init):
> 	Likewise.
> 	* posix/spawnattr_destroy.c (__posix_spawnattr_destroy): Likewise.
> 	* posix/spawnattr_init.c (__posix_spawnattr_init): Likewise.
> 	* posix/spawnattr_setdefault.c (__posix_spawnattr_setsigdefault):
> 	Likewise.
> 	* posix/spawnattr_setflags.c (__posix_spawnattr_setflags): Likewise.
> 	* posix/spawnattr_setsigmask.c (__posix_spawnattr_setsigmask):
> 	Likewise.

Looks okay to me.

Thanks,
Florian