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-rw-r--r--configure.ac5
1 files changed, 3 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac
index ae908f7516..2fd4c7c7c6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2929,6 +2929,7 @@ AS_IF([test "x$ac_cv_func_backtrace" = xyes], [
#include <signal.h>
#include <execinfo.h>
+]`grep '^@%:@ *define *RUBY_SIGALTSTACK_SIZE' ${srcdir}/signal.c`[
#define TRACE_SIZE 256
void sigsegv(int signum, siginfo_t *info, void *ctx){
@@ -2948,12 +2949,12 @@ main(void)
stack_t ss;
struct sigaction sa;
- ss.ss_sp = malloc(16*1024);
+ ss.ss_sp = malloc(RUBY_SIGALTSTACK_SIZE);
if (ss.ss_sp == NULL) {
fprintf(stderr, "cannot allocate memory for sigaltstack\n");
return EXIT_FAILURE;
}
- ss.ss_size = 16*1024;
+ ss.ss_size = RUBY_SIGALTSTACK_SIZE;
ss.ss_flags = 0;
if (sigaltstack(&ss, NULL) == -1) {
fprintf(stderr, "sigaltstack failed\n");