ada/10019: Can't bootstrap gcc on AIX with Ada enabled

[laurent.goujon@online.fr]

>Number:         10019
>Category:       ada
>Synopsis:       Can't bootstrap gcc on AIX with Ada enabled
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Mar 10 17:26:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Laurent Goujon
>Release:        gcc version 3.2.2
>Organization:
>Environment:
OS : IBM AIX 5.1.0
ARCH : RS6000
>Description:
When bootstrapping gcc with ada-language enabled, there's a conflit in the declaration of the function nanosleep in ada/init.c

It seems that AIX 5L provides some "linux" functions like nanosleep...
>How-To-Repeat:
$ cd (builddir)
$ ./configure --enable-languages=all
$ cd (srcdir)/gcc/ada
$ touch treeprs.ads [es]info.h nmake.ad[bs]
$ cd (buildir)
$ make bootstrap

result :
gcc -c -DIN_GCC   `echo -g  -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long |sed -e 's/-pedantic//g' -e 's/-Wtraditional//g'`    \
            -I- -I. -I.. -I../../../gcc-3.2.2/gcc/ada -I../../../gcc-3.2.2/gcc/ada/.. -I../../../gcc-3.2.2/gcc/ada/../config -I../../../gcc-3.2.2/gcc/ada/../../include -fexceptions ../../../gcc-3.2.2/gcc/ada/init.c
../../../gcc-3.2.2/gcc/ada/init.c:205:1: warning: "SA_NODEFER" redefined
In file included from /usr/lib/gcc-lib/powerpc-ibm-aix5.1.0.0/3.2.1/include/sys/wait.h:48,
                 from /usr/lib/gcc-lib/powerpc-ibm-aix5.1.0.0/3.2.1/include/stdlib.h:231,
                 from ../../../gcc-3.2.2/gcc/system.h:134,
                 from ../../../gcc-3.2.2/gcc/ada/init.c:56:
/usr/lib/gcc-lib/powerpc-ibm-aix5.1.0.0/3.2.1/include/sys/signal.h:389:1: warning: this is the location of the previous definition
../../../gcc-3.2.2/gcc/ada/init.c:211: conflicting types for `nanosleep'
/usr/include/time.h:210: previous declaration of `nanosleep'
../../../gcc-3.2.2/gcc/ada/init.c: In function `nanosleep':
../../../gcc-3.2.2/gcc/ada/init.c:218: warning: implicit declaration of function `nsleep'
>Fix:
add #ifdef ! defined(_AIX51) above the nanosleep definition in init.c and #endif below !
>Release-Note:
>Audit-Trail:
>Unformatted: