Re: Porting git to HP NonStop

Perhaps something like:

diff --git a/usage.c b/usage.c
index a2a6678..2d0ff35 100644
--- a/usage.c
+++ b/usage.c

@@ -80,8 +80,15 @@ void NORETURN usage(const char *err)

 void NORETURN die(const char *err, ...)
 {
+       static int dying;
        va_list params;

+       if (dying) {
+               fputs("fatal: recursion detected in die handler\n", stderr);
+               exit(128);
+       }
+       dying = 1;
+
        va_start(params, err);
        die_routine(err, params);
        va_end(params);

@@ -89,11 +96,18 @@ void NORETURN die(const char *err, ...)

 void NORETURN die_errno(const char *fmt, ...)
 {
+       static int dying;
        va_list params;
        char fmt_with_err[1024];
        char str_error[256], *err;
        int i, j;

+       if (dying) {
+               fputs("fatal: recursion detected in die handler\n", stderr);
+               exit(128);
+       }
+       dying = 1;
+
        err = strerror(errno);
        for (i = j = 0; err[i] && j < sizeof(str_error) - 1; ) {
                if ((str_error[j++] = err[i++]) != '%')