Bug 219572 - [WebCore] Fix build without PATH_MAX
Summary: [WebCore] Fix build without PATH_MAX
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebCore Misc. (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2020-12-05 15:49 PST by Samuel Thibault
Modified: 2020-12-22 19:55 PST (History)
10 users (show)

See Also:


Attachments
proposed fix (1.64 KB, patch)
2020-12-05 15:49 PST, Samuel Thibault
no flags Details | Formatted Diff | Diff
Patch (2.02 KB, patch)
2020-12-06 12:59 PST, Samuel Thibault
no flags Details | Formatted Diff | Diff
Patch (1.88 KB, patch)
2020-12-08 12:39 PST, Samuel Thibault
Hironori.Fujii: review-
Details | Formatted Diff | Diff

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Description Samuel Thibault 2020-12-05 15:49:29 PST
Created attachment 415505 [details]
proposed fix

This fixes build on GNU/Hurd, which does not have a PATH_MAX limitation.
Comment 1 Samuel Thibault 2020-12-06 12:59:00 PST
Created attachment 415526 [details]
Patch
Comment 2 Don Olmstead 2020-12-07 08:25:03 PST
I feel like it'd be safer to do a check in the CMake code for realpath which would create a HAVE_REALPATH variable.

See Source/cmake/OptionsCommon.cmake for the other HAVE checks.
Comment 3 Radar WebKit Bug Importer 2020-12-07 13:51:30 PST
<rdar://problem/72062538>
Comment 4 Fujii Hironori 2020-12-07 18:02:41 PST
(In reply to Don Olmstead from comment #2)
> I feel like it'd be safer to do a check in the CMake code for realpath which
> would create a HAVE_REALPATH variable.

I think adding HAVE_REALPATH can't solve this problem.
I don't know which Unix WebKit is supporting, but Linux and FreeBSD can take NULL as the second argument of realpath, as far as I read the documents.
I think it's better to remove the old code.
Comment 5 Yusuke Suzuki 2020-12-08 12:29:56 PST
Comment on attachment 415526 [details]
Patch

Setting r- based on Hironori's comment. Could you update the patch :D ?
Comment 6 Samuel Thibault 2020-12-08 12:39:31 PST
Created attachment 415663 [details]
Patch
Comment 7 Samuel Thibault 2020-12-08 12:40:19 PST
I have done so
Comment 8 Darin Adler 2020-12-08 12:41:09 PST
This idiom occurs in other places, not just HyphenationLibHyphen.cpp. I found it in SandboxUtilities.mm, SandboxInitializationParametersCocoa.mm, AuxiliaryProcessMac.mm, FileSystemPOSIX.cpp, and StdFilesystem.cpp.

I think it’s peculiar to do this in only one place.
Comment 9 Fujii Hironori 2020-12-22 19:55:39 PST
Comment on attachment 415663 [details]
Patch

r- for comment#8.