2.3.47 breaks compiling programs that #include <sys/shm.h>

From: David Dyck (dcd@tc.fluke.com)
Date: Wed Feb 23 2000 - 05:12:17 EST

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Attempting to compile the following one line program

#include <sys/shm.h>

on a libc5 based system w/2.3.47
gives the following errors
-- (this error detected when trying to compile the latest perl)

In file included from /usr/include/linux/sched.h:14,
                 from /usr/include/linux/mm.h:4,
                 from /usr/include/linux/shm.h:5,
                 from /usr/include/sys/shm.h:7,
                 from /tmp/shm.c:1:
/usr/include/linux/timex.h:159: field `time' has incomplete type
In file included from /usr/include/linux/sched.h:17,
                 from /usr/include/linux/mm.h:4,
                 from /usr/include/linux/shm.h:5,
                 from /usr/include/sys/shm.h:7,
                 from /tmp/shm.c:1:
/usr/include/asm/semaphore.h:39: parse error before `wait_queue_head_t'
/usr/include/asm/semaphore.h:39: warning: no semicolon at end of struct or union
/usr/include/asm/semaphore.h: In function `sema_init':
/usr/include/asm/semaphore.h:73: dereferencing pointer to incomplete type
/usr/include/asm/semaphore.h:74: dereferencing pointer to incomplete type
/usr/include/asm/semaphore.h:75: dereferencing pointer to incomplete type
/usr/include/asm/semaphore.h: At top level:
/usr/include/asm/semaphore.h:226: parse error before `wait_queue_head_t'
/usr/include/asm/semaphore.h:226: warning: no semicolon at end of struct or union
/usr/include/asm/semaphore.h:227: warning: data definition has no type or storage class
/usr/include/asm/semaphore.h: In function `init_rwsem':
/usr/include/asm/semaphore.h:255: dereferencing pointer to incomplete type
/usr/include/asm/semaphore.h:256: dereferencing pointer to incomplete type
/usr/include/asm/semaphore.h:257: dereferencing pointer to incomplete type
/usr/include/asm/semaphore.h:258: dereferencing pointer to incomplete type
/usr/include/asm/semaphore.h:259: dereferencing pointer to incomplete type
/usr/include/asm/semaphore.h: At top level:
/usr/include/asm/semaphore.h:268: parse error before `('
/usr/include/asm/semaphore.h:269: parse error before `('
/usr/include/asm/semaphore.h:270: parse error before `('

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