Bug #922: "struct user" exposed through stdlib.h - CrystaX NDK - CrystaX Bug Tracker

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Bug #922

closed

"struct user" exposed through stdlib.h

Added by Adrien B. over 9 years ago. Updated over 9 years ago.

Status:

Completed

Priority:

High

Assignee:

Dmitry M.

Category:

libcrystax

Target version:

10.2.0

Start date:

04/08/2015

Due date:

% Done:

100%

Estimated time:

CPU Architecture:

arm

Host OS:

Linux

Toolchain:

gcc-4.9

Android version:

4.0.3 (android-15)

CrystaX NDK Version:

Description

Not 100% sure it's not a PJSIP bug, however it compiles fine with vanilla NDK (for now I just renamed the structure "user" defined by PJSIP).

../src/pjmedia/transport_loop.c:31:8: error: redefinition of 'struct user'
struct user
^
In file included from /home/adrien/crystax-ndk-10.1.0/platforms/android-15/arch-arm/usr/include/sys/user.h:35:0,
from /home/adrien/crystax-ndk-10.1.0/platforms/android-15/arch-arm/usr/include/crystax/google/sys/ucontext.h:33,
from /home/adrien/crystax-ndk-10.1.0/platforms/android-15/arch-arm/usr/include/sys/ucontext.h:36,
from /home/adrien/crystax-ndk-10.1.0/platforms/android-15/arch-arm/usr/include/signal.h:42,
from /home/adrien/crystax-ndk-10.1.0/platforms/android-15/arch-arm/usr/include/sys/wait.h:35,
from /home/adrien/crystax-ndk-10.1.0/platforms/android-15/arch-arm/usr/include/crystax/sys/stdlib.h:40,
from /home/adrien/crystax-ndk-10.1.0/platforms/android-15/arch-arm/usr/include/stdlib.h:47,
from ../../pjlib/include/pj/compat/string.h:43,
from ../../pjlib/include/pj/string.h:29,
from ../include/pjmedia/frame.h:28,
from ../include/pjmedia/port.h:30,
from ../include/pjmedia/codec.h:29,
from ../include/pjmedia/stream.h:29,
from ../include/pjmedia/transport_loop.h:29,
from ../src/pjmedia/transport_loop.c:20:
/home/adrien/crystax-ndk-10.1.0/platforms/android-15/arch-arm/usr/include/crystax/google/sys/user.h:213:8: note: originally defined here
struct user {
^

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Updated by Dmitry M. over 9 years ago

Category changed from build to libcrystax
Assignee set to Dmitry M.

Strictly speaking, this is bug in PJSIP - just because @struct user@ is part of linux headers and there are no requirement in any standard that @stdlib.h@ should not expose it (there are requirements to expose some definitions, but definitely no requirements to not expose something). However, taking into account this could be common issue, I'll try to fix this in our NDK.

Just to explain why this happens: @stdlib.h@ should expose @WEXITSTATUS@, @WIFEXITED@ and similar macros, according to IEEE Std 1003.1, 2013 Edition. To do that, we've included @sys/wait.h@ into @stdlib.h@ (as this file is place where @WEXITSTATUS@, @WIFEXITED@ and others are defined), which by turn finally includes @sys/user.h@, where @struct user@ defined.

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