Thanks Leif,
On Mon, Apr 1, 2019 at 3:12 PM Leif Andersen <l...@leifandersen.net> wrote: > A common cause of this is you don't have installed the libraries that > the library you're trying to load depends on. > > Since you are using the libvid library it depends on libavutil, which > is not (currently) listed as a dependency in the libvid-x86_64-macosx > package[1]. > libavutil is in /Users/spdegabrielle/Library/Racket/7.2/lib > Can you try installing the ffmpeg-x86_64-macosx package on your > machine and see if it still works? I've installed #lang video and that works so I'm assuming that means ffmpeg-x86_64-macosx is working > If not, can you show us the list of > files in your /Users/spdegabrielle/Library/Racket/7.2/lib and > /Applications/Racket v7.2/lib directories? > Yes, Miriams-MacBook-Pro:lib spdegabrielle$ pwd /Users/spdegabrielle/Library/Racket/7.2/lib Miriams-MacBook-Pro:lib spdegabrielle$ ls launchers.rktd libavformat.57.dylib libswresample.2.dylib libavcodec.57.dylib *libavutil.55.dylib* libswscale.4.dylib libavdevice.57.dylib libopenh264.4.dylib *libvid.0.dylib* libavfilter.6.dylib libs.rktd Miriams-MacBook-Pro:lib spdegabrielle$ cd /Applications/Racket\ v7.2/lib/ Miriams-MacBook-Pro:lib spdegabrielle$ pwd /Applications/Racket v7.2/lib Miriams-MacBook-Pro:lib spdegabrielle$ ls GRacket.app libgobject-2.0.0.dylib MMTabBarView.framework libgthread-2.0.0.dylib PSMTabBarControl.framework libharfbuzz.0.dylib Racket.framework libintl.9.dylib Starter.app libjpeg.9.dylib buildinfo libmpfr.4.dylib launchers.rktd libpango-1.0.0.dylib libatk-1.0.0.dylib libpangocairo-1.0.0.dylib libcairo.2.dylib libpangoft2-1.0.0.dylib libcrypto.1.1.dylib libpixman-1.0.dylib libexpat.1.dylib libpng16.16.dylib libffi.6.dylib libs.rktd libfontconfig.1.dylib libssl.1.1.dylib libfreetype.6.dylib libuuid.1.dylib libfribidi.0.dylib mans.rktd libgio-2.0.0.dylib mzdyn3m.o libglib-2.0.0.dylib starter libgmodule-2.0.0.dylib starter-sh libgmp.10.dylib system.rktd Miriams-MacBook-Pro:lib spdegabrielle$ (Miriam knows I have her MacBook) > > Hope that helps. > > [1]: That was my fault. I probably should have listed it. I never > really imagined libvid being used without the video package, which > _does_ have the required deps. I'll update the deps for that package, > thanks for pointing out the problem. > Thank *you* for making #lang video 😀 Kind regards, Stephen > On 4/1/19, Stephen De Gabrielle <spdegabrie...@gmail.com> wrote: > > Hi, > > > > I'm trying to work out how to use 'copy-foreign-libs' [1], but not having > > much luck. I believe the implementation of the collection using ' > > copy-foreign-libs' is correct because it works in '#lang video', but I've > > been unable to use it myself. > > > > I created a collection 'testffi-1' that would make use of the > > existing(known working) 'libvid-x86_64-macosx' package [2] used by `#lang > > video`. > > > > I installed 'testffi-1' with 'raco pkg install' , but attempts to call it > > with a short test program fail with an error that the foreign library > > cannot be found. > > > > Thinking that I hadn't 'provided'ed the foreign lib to my test script let > > me to create a 'main.rkt' in 'testffi-1', but that also fails to fine the > > foreign lib with the same error message, and using the DrRacket 'trace' > > functionality seems to blame 'kw.rkt' (/Applications/Racket > > v7.2/collects/racket/private/kw.rkt: 1325:47), which seems odd to me > > because the error is in my code, not in the standard racket libs. > > > > I used (require setup/dirs > > <https://docs.racket-lang.org/raco/dirs.html?q=get-lib-dirs>) to see if > the > > foreign lib was included, but > > get-lib-search-dirs > > < > https://docs.racket-lang.org/raco/dirs.html#%28def._%28%28lib._setup%2Fdirs..rkt%29._get-lib-search-dirs%29%29 > > > > returns > > /Users/spdegabrielle/Library/Racket/7.2/lib /Applications/Racket v7.2/lib > > when called from both the test script and the 'testffi-1' collection. > > > > Any suggestions on how I can test or resolve this issue would be > > appreciated. > > > > Kind regards, > > Stephen > > > > * 'copy-foreign-libs' : * > > > https://github.com/videolang/native-pkgs/blob/master/libvid-x86_64-macosx/info.rkt > > > > *test program: * > > #lang racket > > (require ffi/unsafe) > > (require testffi-1) > > (define libvid-val (ffi-lib (string-append "libvid") "0")) > > (displayln libvid-val) > > > > > > *'main.rkt' in 'testffi-1'* > > #lang racket/base > > (require ffi/unsafe) > > ;(ffi-lib? "libvid.0.dylib") > > > > (define libvid-val (ffi-lib (string-append "libvid") "0")) > > > > (displayln libvid-val) > > > > > > *Error* > > Welcome to DrRacket, version 7.2 [3m]. > > Language: racket, with debugging; memory limit: 2048 MB. > > *. . ../../../Applications/Racket > > v7.2/collects/racket/private/kw.rkt:1325:47: ffi-lib: couldn't open > > "libvid.0.dylib" (dlopen(libvid.0.dylib, 6): image not found)* > >> > > > > *tracing the error : * > > ffi-lib: couldn't open "libvid.0.dylib" (dlopen(libvid.0.dylib, 6): image > > not found) > > ffi-lib: couldn't open "libvid.0.dylib" (dlopen(libvid.0.dylib, 6): image > > not found) > > > > > > *package used set deps 'testffi-1' * > > #lang info > > (define collection "testffi-1") > > (define deps '("base" > > ("libvid-x86_64-macosx" #:platform "x86_64-macosx"))) > > (define build-deps '("scribble-lib" "racket-doc" "rackunit-lib")) > > (define scribblings '(("scribblings/testffi.scrbl" ()))) > > (define pkg-desc "testffi Description Here") > > (define version "0.1") > > (define pkg-authors '(spdegabrielle)) > > > > [1] 'copy-foreign-libs' in '6.3 Controlling raco setup with "info.rkt" > > Files' > > > https://docs.racket-lang.org/raco/setup-info.html?q=copy-foreign-libs#%28idx._%28gentag._21._%28lib._scribblings%2Fraco%2Fraco..scrbl%29%29%29 > > > > > > [2] https://pkgs.racket-lang.org/package/libvid-x86_64-macosx > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Racket Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to racket-users+unsubscr...@googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. > > > > > -- > ~Leif Andersen > -- You received this message because you are subscribed to the Google Groups "Racket Users" group. 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