[LLVMbugs] Compile error on 64-bit x86 Solaris
zvrba at ifi.uio.no
Wed Oct 24 09:55:01 PDT 2007
On Wed, Oct 24, 2007 at 09:32:32AM -0700, Dale Johannesen wrote:
> Those names are in the user namespace; it is incorrect for <signal.h>
> to be defining them. Any chance of getting your headers fixed?
Hardly. Theoretically, you're right, but even Linux uses some names
from the user namespace:
#define unix 1
#define linux 1
#define i386 1
(dump obtained by cpp -dM; and these are just macros predefined by
the cpp; w/o any other include files).
Practically, your point is moot because system headers (unfortunately)
*do* define a bunch of additional macros in the user namespace. Try
to compile the following program in Linux and "get the developers
to fix the headers":
int f(int NGREG)
return NGREG + 1;
Simple gcc -c <filename.c> is sufficient. The only difference is that on
Solaris the <ucontext.h> gets pulled in by <signal.h>. Or just substitute
NGREG by e.g. REG_GS.
IMHO, it is a bad coding style to name variables by a widely-accepted naming
convention "reserved" (again, by convention) for macros (i.e. all capitals).
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