diff options
Diffstat (limited to 'src/slibc-error.c')
| -rw-r--r-- | src/slibc-error.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/slibc-error.c b/src/slibc-error.c index fd103d1..26724f9 100644 --- a/src/slibc-error.c +++ b/src/slibc-error.c @@ -34,7 +34,7 @@ * * This is a slibc extension. * - * @param progname The name of the program, `NULL` to use `program_invocation_name`. + * @param progname The name of the program, `NULL` or empty to use `program_invocation_name`. * @param filename The source code file where the error occurred. * @param linenum The line in the source code where the error occurred. * @param function The function in the source code where the error occurred. @@ -51,7 +51,7 @@ void slibc_perror(const char* progname, const char* filename, int linenum, const int tty = isatty(STDERR_FILENO); va_list args; - if (progname == NULL) + if ((progname == NULL) || !*progname) progname = program_invocation_name; if (*error_code) |