Re^2: XSLoader/DynaLoader Can't Locate Library

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Re^3: XSLoader/DynaLoader Can't Locate Library by bliako (Abbot) on Jun 11, 2020 at 00:33 UTC
When I add code to the .bs file, it is executed, so I used that to modify @DynaLoader::dl_library_path. What about adding that code in the actual .pm file you created (Rmath.pm?) like: `package Rmath; ... our @ISA = qw( ... DynaLoader ... ); require DynaLoader; push @DynaLoader::dl_library_path, 'my-nonstandard-lib-path'; print "XXX=$_\n" for @DynaLoader::dl_library_path; bootstrap <Yourmodule> $VERSION;` [download] `$dl_debug` : I meant doing `export LD_DEBUG=all` in your terminal/shell/prompt before testing your program (on that same terminal). There are two very remote possibilities: 1) the dylib extension is not tried at all in enumerating possible library names (unlikely because it finds it in standard lib location), 2) the spaces in the library path (in OSX hmm that's not likely). ps. the reason I suggested this reverse-migration is to investigate DynaLoader's behaviour without the front-man.	[reply] [d/l] [select]
Re^4: XSLoader/DynaLoader Can't Locate Library by wbirkett (Acolyte) on Jun 12, 2020 at 10:21 UTC
While trying your suggestion, I may have stumbled on the cause of my problem. I modified the .pm file as you suggested, and ran my test file. The library paths were printed as you'd expect, but the library still did not load. I wanted to be sure the library was actually where I specified, so I cd'd to that folder and did a directory listing. Then I ran the test file again, and the library loaded!! WBBirkett-M:perl5 wbirkett$ cd ~/ WBBirkett-M:~ wbirkett$ perl -I/Users/wbirkett/Library/Application\ Su +pport/TextMate/Pristine\ Copy/Bundles/PressCal.tmbundle/Support/lib/p +erl5 /Users/wbirkett/Desktop/Rmath_test.pl XXX=/usr/lib XXX=/usr/local/lib XXX=/Users/wbirkett/Library/Application Support/TextMate/Pristine Copy +/Bundles/PressCal.tmbundle/Support/lib/perl5 Can't load '/Users/wbirkett/Library/Application Support/TextMate/Prist +ine Copy/Bundles/PressCal.tmbundle/Support/lib/perl5/darwin-thread-mu +lti-2level/auto/ICC/Support/Rmath/Rmath.bundle' for module ICC::Suppo +rt::Rmath: dlopen(/Users/wbirkett/Library/Application Support/TextMat +e/Pristine Copy/Bundles/PressCal.tmbundle/Support/lib/perl5/darwin-th +read-multi-2level/auto/ICC/Support/Rmath/Rmath.bundle, 1): Library no +t loaded: libRmath.dylib Referenced from: /Users/wbirkett/Library/Application Support/TextMat +e/Pristine Copy/Bundles/PressCal.tmbundle/Support/lib/perl5/darwin-th +read-multi-2level/auto/ICC/Support/Rmath/Rmath.bundle Reason: image not found at /System/Library/Perl/5.18/darwin-thread-m +ulti-2level/DynaLoader.pm line 194. at /Users/wbirkett/Desktop/Rmath_test.pl line 1. Compilation failed in require at /Users/wbirkett/Desktop/Rmath_test.pl + line 1. BEGIN failed--compilation aborted at /Users/wbirkett/Desktop/Rmath_tes +t.pl line 1. WBBirkett-M:~ wbirkett$ cd /Users/wbirkett/Library/Application\ Suppor +t/TextMate/Pristine\ Copy/Bundles/PressCal.tmbundle/Support/lib/perl5 WBBirkett-M:perl5 wbirkett$ perl -I/Users/wbirkett/Library/Application +\ Support/TextMate/Pristine\ Copy/Bundles/PressCal.tmbundle/Support/l +ib/perl5 /Users/wbirkett/Desktop/Rmath_test.pl XXX=/usr/lib XXX=/usr/local/lib XXX=/Users/wbirkett/Library/Application Support/TextMate/Pristine Copy +/Bundles/PressCal.tmbundle/Support/lib/perl5 OK [download] So, the failure to load the library is somehow connected to the current directory in the Terminal app. I don't know why that would matter, but it looks this is a macOS problem, not a Perl problem. Thank you again for your help.	[reply] [d/l]
Re^5: XSLoader/DynaLoader Can't Locate Library by bliako (Abbot) on Jun 12, 2020 at 11:37 UTC
So, the failure to load the library is somehow connected to the current directory in the Terminal app. I don't know why that would matter, but it looks this is a macOS problem, not a Perl problem. If I understand right that by changing directory to that which contains the actual dylib file, it does work, then that could be because it possibly searches the current directory for the dylib file by default - perhaps not DynaLoader but the OS's dynamic library loader. So, that's to be expected I guess. Perhaps you can experiment with a directory without spaces, although that's far-fetched and in my linux box a dir with spaces works perfectly. Additionally run `strace's` OSX equivalent: `dtruss` as per perlfan's suggestion and/or export any shell debug variables like `LD_DEBUG=yes` and maybe OSX-specific `DYLD_PRINT_LIBRARIES=YES` and try to see what's going on. It could say that it did not find the library but it could mean that some other dependencies were not found. Don't forget there are 2 processes at play here: DynaLoader and OS's dynamic library loader.	[reply] [d/l] [select]
Re^6: XSLoader/DynaLoader Can't Locate Library by wbirkett (Acolyte) on Jun 13, 2020 at 13:15 UTC
Re^7: XSLoader/DynaLoader Can't Locate Library by bliako (Abbot) on Jun 13, 2020 at 14:00 UTC
Some notes below your chosen depth have not been shown here
Re^3: XSLoader/DynaLoader Can't Locate Library by perlfan (Parson) on Jun 11, 2020 at 01:47 UTC
>strace is not available on my Mac `man dtruss`	[reply] [d/l]
Re^3: XSLoader/DynaLoader Can't Locate Library by karlgoethebier (Abbot) on Jun 11, 2020 at 05:44 UTC
Ť...strace is not available on my Mac.ť `dtruss`? ŤThe Crux of the Biscuit is the Apostropheť `perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'`Help	[reply] [d/l] [select]