P_ALL behavior inconsistent in eglibc vs. kernel headers (enum vs. #define)

[Steve Langasek]

libsdl1.2 fails to build in trusty-proposed due to eglibc 2.18, which rearranges headers and exposes an incompatibility between eglibc and kernel handling of P_ALL, P_PID, P_GID.

libtool: compile: gcc -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -Iinclude -I../../include -D_GNU_SOURCE=1 -fvisibility=hidden -maltivec -D_REENTRANT -DXTHREADS -I/usr/include/ -D_REENTRANT -DHAVE_LINUX_VERSION_H -Wall -c ../../src/video/fbcon/SDL_fbevents.c -fPIC -DPIC -o build/.libs/SDL_fbevents.o
In file included from /usr/include/linux/keyboard.h:4:0,
                 from ../../src/video/fbcon/SDL_fbevents.c:41:
/usr/include/powerpc64le-linux-gnu/bits/waitflags.h:45:3: error: expected identifier before numeric constant
   P_ALL, /* Wait for any child. */
   ^
make[2]: *** [build/SDL_fbevents.lo] Error 1

(https://launchpadlibrarian.net/160042091/buildlog_ubuntu-trusty-ppc64el.libsdl1.2_1.2.15-5ubuntu3_FAILEDTOBUILD.txt.gz)

/usr/include/linux/wait.h has P_ALL as a #define; bits/waitflags.h has it as an enum. This means one gets compile failures based on the order of header includes.

The linux header should probably be mixed to match the libc API.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1261872

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Steve Langasek (vorlon)]

(adding libsdl1.2 task and ftbfs tag for better qa.ubuntuwire tracking)

[Adam Conrad (adconrad)]

This was worked around in eglibc with some ifdef magic, but we still need to sync the headers upstream in one way or another.