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librb: Avoid unused variable warning

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Simon Arlott 2019-09-15 11:13:54 +01:00
parent 53aeb0305a
commit 4b7abcfb7d
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GPG key ID: 49BFFEEFD4C3ED53
1 changed files with 2 additions and 2 deletions
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4
librb/src/unix.c
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@ -164,7 +164,6 @@ const char *
rb_path_to_self(void) rb_path_to_self(void)
{ {
static char path_buf[4096]; static char path_buf[4096];
size_t path_len = sizeof(path_buf);
#if defined(HAVE_GETEXECNAME) #if defined(HAVE_GETEXECNAME)
char *s = getexecname(); char *s = getexecname();
if (s == NULL) if (s == NULL)
@ -172,10 +171,11 @@ rb_path_to_self(void)
realpath(s, path_buf); realpath(s, path_buf);
return path_buf; return path_buf;
#elif defined(__linux__) || (defined(__FreeBSD__) && !defined(KERN_PROC_PATHNAME)) #elif defined(__linux__) || (defined(__FreeBSD__) && !defined(KERN_PROC_PATHNAME))
if (readlink("/proc/self/exe", path_buf, path_len) != -1) if (readlink("/proc/self/exe", path_buf, sizeof(path_buf)) != -1)
return path_buf; return path_buf;
return NULL; return NULL;
#elif defined(__FreeBSD__) || defined(__DragonFly__) #elif defined(__FreeBSD__) || defined(__DragonFly__)
size_t path_len = sizeof(path_buf);
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 }; int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
if (sysctl(mib, 4, path_buf, &path_len, NULL, 0) == 0) if (sysctl(mib, 4, path_buf, &path_len, NULL, 0) == 0)
return path_buf; return path_buf;