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* Find the offset of uc_mcontext in a ucontext structure, to enable
* building on both (glibc-2.3.1 and earlier) and (glibc-2.3.2 and
* later), after the glibc developers broke source code compatibility.
* (see also Debian bugs #207806 and #209074)
* This software is part of the SBCL system. See the README file for
* more information.
* While most of SBCL is derived from the CMU CL system, many
* utilities for the build process (like this one) were written from
* scratch after the fork from CMU CL.
* This software is in the public domain and is provided with
* absolutely no warranty. See the COPYING and CREDITS files for
* more information.
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <sys/ucontext.h>
int main (int argc, char *argv[]) {
if(argc != 1) {
fprintf(stderr,"%s: command line arguments provided. Don't do that.\n", argv[0]);
/* This is an automatically-generated file; please do not edit it.\n\
See the program tools-for-build/where-is-mcontext.c.\n\
#define PPC_LINUX_MCONTEXT_H\n\n");
if (offsetof(ucontext_t,uc_mcontext) > 40) {
printf("#define GLIBC232_STYLE_UCONTEXT\n\n");
} else {
printf("#define GLIBC231_STYLE_UCONTEXT\n\n");
#endif /* PPC_LINUX_MCONTEXT_H */\n");
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