diff options
| author | rmanfredi <rmanfredi@2592e710-e01b-42a5-8df0-11608a6cc53d> | 2015-04-18 09:10:52 +0000 |
|---|---|---|
| committer | rmanfredi <rmanfredi@2592e710-e01b-42a5-8df0-11608a6cc53d> | 2015-04-18 09:10:52 +0000 |
| commit | 7b26fa2343e40b86497ba09bf6369b5ab7ed3703 (patch) | |
| tree | 395708020004c397feb73a703322f5c071b40986 | |
| parent | efd117dccf64f6a9b39fe014d7a67357f402fe26 (diff) | |
Added HAS_DIRENT_D_NAMELEN for a compile check of d_namelen.
The legacy symbol DIRNAMELEN uses a weaker grep-based test, hence it should
no longer be used.
git-svn-id: svn://svn.code.sf.net/p/dist/code/trunk/dist@187 2592e710-e01b-42a5-8df0-11608a6cc53d
| -rw-r--r-- | MANIFEST | 1 | ||||
| -rw-r--r-- | mcon/U/d_dirent_d_namelen.U | 42 |
2 files changed, 43 insertions, 0 deletions
@@ -204,6 +204,7 @@ mcon/U/d_debugging.U Conditionally defines -DDEBUGGING mcon/U/d_deflate.U Do we have zlib's deflate()? mcon/U/d_devpoll.U Can we use /dev/poll? mcon/U/d_difftime.U Do we have difftime()? +mcon/U/d_dirent_d_namelen.U Does struct dirent has a member d_namelen? mcon/U/d_dirent_d_type.U Does struct dirent has a member d_type? mcon/U/d_dirfd.U Do we have dirfd()? mcon/U/d_dladdr.U Do we have dladdr()? diff --git a/mcon/U/d_dirent_d_namelen.U b/mcon/U/d_dirent_d_namelen.U new file mode 100644 index 0000000..48361a6 --- /dev/null +++ b/mcon/U/d_dirent_d_namelen.U @@ -0,0 +1,42 @@ +?RCS: +?RCS: Copyright (c) 2015 Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic License, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic License; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?MAKE:d_dirent_d_namelen: Trylink cat i_dirent +?MAKE: -pick add $@ %< +?S:d_dirent_d_namelen: +?S: This variable conditionally defines the HAS_DIRENT_D_NAMELEN symbol, +?S: which indicates to the C program that struct dirent has an +?S: integer member d_namelen. Better check for HAS_DIRENT_D_NAMELEN than +?S: DIRNAMLEN since the latter has a weaker test not involving compilation. +?S:. +?C:HAS_DIRENT_D_NAMELEN: +?C: This symbol, if defined, indicates that struct dirent has an +?C: integer member d_namelen to hold the actual string length of d_name. +?C:. +?H:#$d_dirent_d_namelen HAS_DIRENT_D_NAMELEN /**/ +?H:. +?LINT:set d_dirent_d_namelen +: check whether struct dirent has a member d_namelen. +$cat >try.c <<EOC +#include <sys/types.h> +#$i_dirent I_DIRENT +#ifdef I_DIRENT +#include <dirent.h> +#endif +int main(void) +{ + static struct dirent dir_entry; + dir_entry.d_namelen |= 1; + return 0; +} +EOC +cyn="whether struct dirent has a d_namelen member" +set d_dirent_d_namelen +eval $trylink + |