diff options
Diffstat (limited to 'fixincludes/inclhack.def')
| -rw-r--r-- | fixincludes/inclhack.def | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fixincludes/inclhack.def b/fixincludes/inclhack.def index e34e3902fda..27ed40934be 100644 --- a/fixincludes/inclhack.def +++ b/fixincludes/inclhack.def @@ -1598,6 +1598,28 @@ fix = { }; +/* Some versions of glibc have a version of bits/string2.h that + produces "value computed is not used" warnings from strncpy; fix + this definition by using __builtin_strncpy instead as in newer + versions. */ +fix = { + hackname = glibc_strncpy; + files = bits/string2.h; + bypass = "__builtin_strncpy"; + c_fix = format; + c_fix_arg = "# define strncpy(dest, src, n) __builtin_strncpy (dest, src, n)"; + c_fix_arg = "# define strncpy([^\n]*\\\\\n)*[^\n]*"; + test_text = <<-EOT + # define strncpy(dest, src, n) \ + (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n) \\ + ? (strlen (src) + 1 >= ((size_t) (n)) \\ + ? (char *) memcpy (dest, src, n) \\ + : strncpy (dest, src, n)) \\ + : strncpy (dest, src, n))) + EOT; + +}; + /* glibc's tgmath.h relies on an expression that is not an integer constant expression being treated as it was by GCC 4.4 and earlier. */ |