makedepend does not honor UNC path for -I and -Y

2022-02-02 Thread Ronald Hoogenboom
cygwin makedepend collapses the double-slash UNC path prefix to one single 
slash. It fails to find headers via such search paths.

Cygwin 3.2.0-1 on windows server 2012 R2
makedepend 1.0.6


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Re: makedepend does not honor UNC path for -I and -Y

2022-02-06 Thread Jon Turney

On 02/02/2022 17:02, Ronald Hoogenboom wrote:

cygwin makedepend collapses the double-slash UNC path prefix to one single 
slash. It fails to find headers via such search paths.

Cygwin 3.2.0-1 on windows server 2012 R2
makedepend 1.0.6


Thanks for reporting this.
I suspect that this is an upstream bug in makedepend, in that it does 
some canonicalization on paths, and assumes that '//' is the same as '/' 
everywhere in a path, which isn't true for an initial '//' (but happens 
to work on Linux, etc.)


See SUSv4 Base specifications, section 4.13 "Pathname Resolution" ([1], 
registration required):


"If a pathname begins with two successive  characters, the first 
component following the leading  characters may be interpreted in 
an implementation-defined manner, although more than two leading  
characters shall be treated as a single  character."


Unfortunately, you're probably going to have to fix this yourself, if 
it's causing you problems.


Fortunately, makedepend is relatively small (See [2]).

[1] 
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html#tag_04_13

[2] https://gitlab.freedesktop.org/xorg/util/makedepend

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RE: makedepend does not honor UNC path for -I and -Y

2022-02-07 Thread Ronald Hoogenboom
Thanks, Jon.

I solved this by 'relativizing' paths before passing to makedepend using 
realpath --relative-to (from coreutils).
Since makedepend is not heavily used anymore now gcc has the -MMD option, I 
wonder if the maintainers are taking any pull requests... If they don't and I 
create a patch, will cygwin add it in their build process of tools?

-Original Message-
From: Jon Turney  
Sent: Sunday, 6 February 2022 5:48 PM
To: Ronald Hoogenboom ; The Cygwin Mailing List 

Subject: Re: makedepend does not honor UNC path for -I and -Y

On 02/02/2022 17:02, Ronald Hoogenboom wrote:
> cygwin makedepend collapses the double-slash UNC path prefix to one single 
> slash. It fails to find headers via such search paths.
> 
> Cygwin 3.2.0-1 on windows server 2012 R2 makedepend 1.0.6

Thanks for reporting this.
I suspect that this is an upstream bug in makedepend, in that it does some 
canonicalization on paths, and assumes that '//' is the same as '/' 
everywhere in a path, which isn't true for an initial '//' (but happens to work 
on Linux, etc.)

See SUSv4 Base specifications, section 4.13 "Pathname Resolution" ([1], 
registration required):

"If a pathname begins with two successive  characters, the first 
component following the leading  characters may be interpreted in an 
implementation-defined manner, although more than two leading  
characters shall be treated as a single  character."

Unfortunately, you're probably going to have to fix this yourself, if it's 
causing you problems.

Fortunately, makedepend is relatively small (See [2]).

[1]
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html#tag_04_13
[2] https://gitlab.freedesktop.org/xorg/util/makedepend

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Re: makedepend does not honor UNC path for -I and -Y

2022-02-08 Thread Jon Turney

On 07/02/2022 08:59, Ronald Hoogenboom wrote:

I solved this by 'relativizing' paths before passing to makedepend
using realpath --relative-to (from coreutils). Since makedepend is
not heavily used anymore now gcc has the -MMD option, I wonder if the
maintainers are taking any pull requests... If they don't and I


Probably yes.


create a patch, will cygwin add it in their build process of tools?


Definitely yes.

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