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To: FFmpeg development discussions and patches , Kacper Michajlow Thread-Topic: graph.{html,css} embed failure on Windows build Thread-Index: AQHb3X6KrDB/fiiSwkGaUufecdJaHrQGme5QgAC9VwCAAA+qAIAAAGxQgAAV0EA= Date: Tue, 17 Jun 2025 15:29:48 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-publictraffictype: Email x-ms-traffictypediagnostic: DM8P223MB0365:EE_|IA4P223MB1497:EE_ x-ms-office365-filtering-correlation-id: 92ce40de-824b-46e9-3a45-08ddadb3cc01 x-microsoft-antispam: BCL:0; ARA:14566002|19110799006|461199028|8060799009|8062599006|7092599006|15080799009|3412199025|4302099013|40105399003|440099028|10035399007|102099032|1602099012; x-microsoft-antispam-message-info: =?utf-8?B?NHVRYjhUVzFNUXU2L0c4OHNTWXI3MXQ2dzgrNzh1aTljcUJQTmYxdHlscEF2?= =?utf-8?B?eTRvdmJEaGVKOWRzaWFtV3Q5Q0U4YUNHSjNWeDhRVVRrckFnM1JqWVQ5VkFJ?= 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IA4P223MB1497 Subject: Re: [FFmpeg-devel] graph.{html,css} embed failure on Windows build X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: > -----Original Message----- > From: ffmpeg-devel On Behalf Of > softworkz . > Sent: Tuesday, June 17, 2025 4:13 PM > To: Kacper Michajlow > Cc: FFmpeg development discussions and patches devel@ffmpeg.org> > Subject: Re: [FFmpeg-devel] graph.{html,css} embed failure on Windows build > > > > -----Original Message----- > > From: Kacper Michajlow > > Sent: Tuesday, June 17, 2025 4:06 PM > > To: softworkz . > > Cc: FFmpeg development discussions and patches > devel@ffmpeg.org> > > Subject: Re: graph.{html,css} embed failure on Windows build > > > > On Tue, 17 Jun 2025 at 15:10, Kacper Michajlow > > wrote: > > > > > > On Tue, 17 Jun 2025 at 04:07, softworkz . > wrote: > > > > > > > > > > > > > -----Original Message----- > > > > > From: Kacper Michajlow > > > > > Sent: Sunday, June 15, 2025 12:49 AM > > > > > To: FFmpeg development discussions and patches > > > > devel@ffmpeg.org> > > > > > Cc: softworkz@hotmail.com > > > > > Subject: graph.{html,css} embed failure on Windows build > > > > > > > > > > Hello, > > > > > > > > > > Since the recent addition of resman.c and embedding of > > > > > graph.{html,css} some of the Windows builds fail. There seems to > > > > > be a regression in path joining, caused by \ / mismatch. > > > > > > > > > > Generally those issues were never a problem and I would prefer to > > > > > keep it this way. This configuration has always been flaky and > > undertested. > > > > > I could set-up a pipeline to report to the fate server if that's > > > > > something that would help stabilize it. > > > > > > > > > > Example of failure: > > > > > ``` > > > > > BIN2C fftoolsresourcesgraph.html.c BIN2C > > > > > fftools/resources/graph.html.c SED fftoolsresourcesgraph.css.min > > > > > sed: can't read /c/a/FFmpeg/FFmpeg/fftoolsresources/graph.css: No > > > > > such file or directory SED fftools/resources/graph.css.min > > > > > make: *** No rule to make target 'fftools\resources\graph.html.c', > > > > > needed by 'fftools/resources/graph.html.o'. Stop. > > > > > make: *** Waiting for unfinished jobs.... > > > > > HOSTCC tests/videogen.o > > > > > rm fftools\resources\graph.css.min fftools/resources/graph.html.c > > > > > ``` > > > > > > > > > > Note that BIN2C is called twice, once with the correct path and > > > > > with the wrong one. > > > > > > > > > > Removing resman.c fixes the build. This has to be done forcefully > > > > > in the code, because there is no configure option to disable this > html/css > > embedding. > > > > > > > > > > You can see the details and whole failing build logs here: > > > > > code: https://github.com/kasper93/FFmpeg/tree/gha > > > > > build: > > > > > > > https://github.com/kasper93/FFmpeg/actions/runs/15653223193/job/44 > > > > > 100 > > > > > 735119 > > > > > command: $ ../configure --enable-gpl --enable-version3 > > > > > --enable-nonfree -- samples=../samples --enable-memory-poisoning > > > > > --arch=amd64 --enable-w32threads --as=clang --ar=llvm-ar > > > > > --cxx=clang++ -- ld=lld-link --windres=llvm-windres > > > > > --strip=llvm-strip --cc=clang --nm=llvm-nm --extra-ldflags='msvcrt.lib > > oldnames.lib' > > > > > --host_extralibs='' --toolchain=msvc && make -j`nproc` && make > > > > > -j`nproc` run-checkasm && make -j`nproc` fate-rsync && make > > > > > -j`nproc` fate > > > > > > > > > > Here is exactly the same pipeline with removed graph.{html,css} > > > > > https://github.com/kasper93/FFmpeg/tree/gha2 > > > > > https://github.com/kasper93/FFmpeg/actions/runs/15656127992 > > > > > Builds just fine. > > > > > Ignore win32 (windows-11-arm, arm64, --toolchain=msvc) failure, as > > > > > this is affected by unrelated regression in dxvenc.c on arm64 > > > > > target, but the build itself is passing just fine. > > > > > > > > > > Any ideas how we can restore the ability to build ffmpeg on Windows? > > > > > > > > Hi Kasper, > > > > > > > > I was able to reproduce the issue by adding a new CI build (for PRs > > > > to ffstaging/ffmpeg (on GitHub, not yet for Patchwork). > > > > > > > > It appears to be all about dir separators when building under MSYS2 > > > > with Clang. Clang insists on using backslashes (unlike GCC and MSVC) > > > > and that screws the Gnu make logic (pattern rules, dependency and > > > > up-to-date checks). > > > > > > Why is Clang involved in .css conversion rules? It seems to fail at > > > the `%.css.min: %.css` rule already, which shouldn't involve any C > > > toolchain related bits. Is this propagated from the .o file? In which > > > case why does the .o have "wrong" path separators? > > > > > > Isn't there an issue in vpath? Maybe we can make it somehow proper > > > separators. Few days I briefly looked at this, but it wasn't obvious > > > what would be the correct solution here. Changing vpath to extract > > > only files in fftools/resources was improving things, but still not > > > fully. > > > > > > Also vpath in fftools/resources/Makefile is setting search path in the > > > whole SRC_PATH, while imho it should be restricted to the > > > fftools/resources directory only. > > > > > > - Kacper > > > > Ok, Martin explained to me on IRC that Windows Clang is generating > > dependency files with backward slashes, which is then choking because > Make > > ingest that, which when not escaped \\ makes paths all go wrong. > > > > There is no issue with llvm-mingw or alike, because Clang can be configured > > during compile time to output forward slashes in dep files. > > > > So, probably a solution would be to postproc .d files. But I didn't look at the > > issue closely, as you can see :) Or make Make work with backward slashes > > where needed, but this may be tricky to cover all internal matching. > > > > Dunno, just wanted to correct my previous message. > > Hi Kasper, > > thanks a lot for the update. > I had found this (path in dependency files) as a possible issue from research > but disregarded it because I had already stopped creation of .d files for > resources. > > BUT - now I realize: That change hasn't even been merged into master yet. > > Will run the CI with those changes included and report back. > > Thank you, > sw Hi Kasper, my already submitted patchset indeed fixes the MSVC-CLang build configuration which you had reported as failing: PR: https://github.com/ffstaging/FFmpeg/pull/80 Build log: https://dev.azure.com/githubsync/ffmpeg/_build/results?buildId=95960&view=logs&j=275f1d19-1bd8-5591-b06b-07d489ea915a I will wait for the remaining CI builds to succeed and submit the rebased patchset to the ML then. Please let me know whether it fixes the build on your side as well. Thanks, sw _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".