[FFmpeg-devel] [PATCH 2/2] lavf/file: check for dirent.h support

Michael Niedermayer michael at niedermayer.cc
Tue Aug 25 14:36:38 CEST 2015


On Tue, Aug 25, 2015 at 02:18:22AM -0300, James Almer wrote:
> On 24/08/15 10:02 PM, Michael Niedermayer wrote:
> > On Fri, Aug 21, 2015 at 02:18:34AM +0200, Mariusz Szczepańczyk wrote:
> >> On Thu, Jun 25, 2015 at 12:09 PM, Michael Niedermayer <michaelni at gmx.at>
> >> wrote:
> >>
> >>> On Wed, Jun 24, 2015 at 03:25:18AM +0200, Mariusz Szczepańczyk wrote:
> >>>> On Tue, Jun 23, 2015 at 8:34 PM, Michael Niedermayer <michaelni at gmx.at>
> >>>> wrote:
> >>>>
> >>>>> On Mon, Jun 22, 2015 at 12:01:33AM +0200, Mariusz Szczepańczyk wrote:
> >>>>>> ---
> >>>>>>  configure          |  2 ++
> >>>>>>  libavformat/file.c | 34 ++++++++++++++++++++++++++++++++++
> >>>>>>  2 files changed, 36 insertions(+)
> >>>>>
> >>>>> this and the previous patch fails to build
> >>>>>
> >>>>> make distclean ; ./configure --disable-sdl && make -j12
> >>>>>
> >>>>> libavformat/file.c: In function ‘file_read_dir’:
> >>>>> libavformat/file.c:302:10: error: ‘DT_FIFO’ undeclared (first use in
> >>> this
> >>>>> function)
> >>>>> libavformat/file.c:302:10: note: each undeclared identifier is reported
> >>>>> only once for each function it appears in
> >>>>> libavformat/file.c:305:10: error: ‘DT_CHR’ undeclared (first use in
> >>> this
> >>>>> function)
> >>>>> libavformat/file.c:308:10: error: ‘DT_DIR’ undeclared (first use in
> >>> this
> >>>>> function)
> >>>>> libavformat/file.c:311:10: error: ‘DT_BLK’ undeclared (first use in
> >>> this
> >>>>> function)
> >>>>> libavformat/file.c:314:10: error: ‘DT_REG’ undeclared (first use in
> >>> this
> >>>>> function)
> >>>>> libavformat/file.c:317:10: error: ‘DT_LNK’ undeclared (first use in
> >>> this
> >>>>> function)
> >>>>> libavformat/file.c:320:10: error: ‘DT_SOCK’ undeclared (first use in
> >>> this
> >>>>> function)
> >>>>> libavformat/file.c:323:10: error: ‘DT_UNKNOWN’ undeclared (first use in
> >>>>> this function)
> >>>>> make: *** [libavformat/file.o] Error 1
> >>>>> make: *** Waiting for unfinished jobs....
> >>>>>
> >>>>> sdl disable is needed to reproduce  as sdls pkgcnonfig adds
> >>>>> GNU_SOURCE i suspect
> >>>>>
> >>>>
> >>>> Added contraint on _GNU_SOURCE and now it compiles fine on my linux in
> >>> both
> >>>> cases (with or without sdl).
> >>>
> >>> The code probably should #ifdef DT_... like DT_FIFO
> >>> also are both variants needed ?
> >>> are there systems lacking some of the S_IS*() ? or is there some
> >>> disadvantage in their use ? (i dont know, just asking ...)
> >>>
> >>> testing for _GNU_SOURCE is not correct, nothing gurantees that the
> >>> compiler or headers know or react to _GNU_SOURCE
> >>>
> >>
> >> Yet another try.
> >>
> >> Completely removed reliance on DT_* and added definitions for some S_* that
> >> can be missing.
> > 
> >>  configure          |    2 +
> >>  libavformat/file.c |   80 ++++++++++++++++++++++++++++++++++-------------------
> >>  2 files changed, 54 insertions(+), 28 deletions(-)
> >> 47af9bc90efe51f1d94455bdf7e3eafaec6e61e2  0002-lavf-file-check-for-dirent.h-support.patch
> >> From 820bd4aa5b064861935f8ef9e37a19bf459620c8 Mon Sep 17 00:00:00 2001
> >> From: =?UTF-8?q?Mariusz=20Szczepa=C5=84czyk?= <mszczepanczyk at gmail.com>
> >> Date: Mon, 29 Jun 2015 00:13:43 +0200
> >> Subject: [PATCH 2/2] lavf/file: check for dirent.h support
> > 
> > both patches applied
> > 
> > thanks
> 
> This broke mingw-w64 (x86_32 and x86_64) and mingw32.
> http://fate.ffmpeg.org/report.cgi?time=20150825040408&slot=x86_32-mingw-w64-dll-windows-native
> http://fate.ffmpeg.org/report.cgi?time=20150822201317&slot=x86_64-freebsd10-mingw32
> http://fate.ffmpeg.org/report.cgi?time=20150825012347&slot=x86_64-mingw-w64-windows-native
> 
> /src/libavformat/file.c: In function 'file_read_dir':
> /src/libavformat/file.c:289:9: error: implicit declaration of function 'lstat' [-Werror=implicit-function-declaration]

should be fixed
didint see your mail before runing into the failure myself

[..]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I have never wished to cater to the crowd; for what I know they do not
approve, and what they approve I do not know. -- Epicurus
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