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| author | Arjun Shankar <arjun.is@lostca.se> | 2015-05-18 12:28:06 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2015-05-18 12:28:06 +0530 |
| commit | 330fadfc62498041c838cba3a0413bb9c715b73f (patch) | |
| tree | 848d985164199b0e37402a45fc17b78c9fa86636 /include/stdio.h | |
| parent | b40a4e1a7bf7000018a8d1d1ee2f37f5c63e5a42 (diff) | |
| download | glibc-330fadfc62498041c838cba3a0413bb9c715b73f.zip glibc-330fadfc62498041c838cba3a0413bb9c715b73f.tar.gz glibc-330fadfc62498041c838cba3a0413bb9c715b73f.tar.bz2 | |
Ensure `wint_t' is defined before use in include/stdio.h
While trying to get nptl/tst-initializers1.c to include the test skeleton, I
came across a couple of speed bumps. Firstly: after making the appropriate
changes to the test, running `make check' led to this error:
> In file included from ../malloc/malloc.h:24:0,
..
> from tst-initializers1.c:60:
> ../include/stdio.h:111:1: error: unknown type name `wint_t'
> extern wint_t __getwc_unlocked (FILE *__fp);
So, `wint_t' is used before being defined. Question: Why did test-skeleton.c
not cause this error in any of the other tests that include it?
Anyway, I noticed include/stdio.h includes stddef.h, which in turn defines
`wint_t', but only if `__need_wint_t' is defined. So I put in a
`#define __need_wint_t' before the include to get rid of the error. Is that
the correct fix?
A subsequent `make && make check' led to this second error:
> from tst-initializers1-c89.c:1:
> ../test-skeleton.c: In function `main':
> ../test-skeleton.c:356:11: error: `for' loop initial declarations are only
> allowed in C99 mode
> for (struct temp_name_list *n = temp_name_list;
Although there seem to be several other C89 no-noes in test-skeleton.c, I
needed only to fix this specific one for gcc-4.8.3 to stop complaining.
Diffstat (limited to 'include/stdio.h')
| -rw-r--r-- | include/stdio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/stdio.h b/include/stdio.h index 0010607..043b2b5 100644 --- a/include/stdio.h +++ b/include/stdio.h @@ -76,6 +76,7 @@ extern FILE *__old_tmpfile (void); # define __need_size_t +# define __need_wint_t # include <stddef.h> /* Generate a unique file name (and possibly open it). */ extern int __path_search (char *__tmpl, size_t __tmpl_len, |