On latest Cygwin:
$ echo "#include <sys/signal.h>" > test.c
$ gcc -c test.c
$ gcc -c -std=c89 test.c
In file included from /usr/include/sys/signal.h:107,
from test.c:1:
/usr/include/cygwin/signal.h:74: error: expected
specifier-qualifier-list before 'pthread_attr_t'
/usr/include/cygwin/signal.h:80: error: expected
specifier-qualifier-list before '__uint32_t'
/usr/include/cygwin/signal.h:96: error: expected
specifier-qualifier-list before 'pid_t'
/usr/include/cygwin/signal.h:270: error: expected ')' before 'int'
In file included from test.c:1:
/usr/include/sys/signal.h:152: error: expected ')' before 'int'
The problem is that both <cygwin/signal.h> and an (__CYGWIN__ ||
__rtems__) section of <sys/signal.h> need those typedefs from
<sys/types.h>, but the latter is only #include'd #ifdef _POSIX_THREADS,
which is off in C89 mode.
Patch attached.
Yaakov
Cygwin/X