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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: guix-devel-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -5.74 X-Spam-Score: -5.74 X-Migadu-Queue-Id: 43C761A8E0 X-Migadu-Scanner: mx10.migadu.com X-TUID: hdFMWU/xF5RB --_000_AS8PR10MB582917483C43AC0CB59FE23DF74E2AS8PR10MB5829EURP_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hello! Yes, only changes in the environment.scm files are required for fixing the = issue. Why did you make the patch so complex? > --- a/guix/scripts/environment.scm > +++ b/guix/scripts/environment.scm > @@ -464,8 +464,15 @@ (define (setup-fhs profile) > ;; /bin since that already has the sh symlink and the other (optional)= FHS > ;; bin directories will link to /bin. > (let ((gcc-path (string-append profile "/bin/gcc"))) > - (if (file-exists? gcc-path) > - (symlink gcc-path "/bin/cc"))) > + (when (file-exists? gcc-path) > + (catch 'system-error > + (lambda () > + (symlink gcc-path "/bin/cc")) > + (lambda args > + ;; If /bin/cc already exists because it was provided by anothe= r > + ;; package in PROFILE, such as 'clang-toolchain', leave it. > + (unless (=3D EEXIST (system-error-errno args)) > + (apply throw args)))))) > > ;; Guix's ldconfig doesn't search in FHS default locations, so provide= a > ;; minimal ld.so.conf. was not enough ? diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm index a219b2ac89..37f11395f9 100644 --- a/guix/scripts/environment.scm +++ b/guix/scripts/environment.scm @@ -464,7 +464,8 @@ (define (setup-fhs profile) ;; /bin since that already has the sh symlink and the other (optional) F= HS ;; bin directories will link to /bin. (let ((gcc-path (string-append profile "/bin/gcc"))) - (if (file-exists? gcc-path) + (if (and (file-exists? gcc-path) + (not (file-exists? "/bin/cc"))) (symlink gcc-path "/bin/cc"))) ;; Guix's ldconfig doesn't search in FHS default locations, so provide a ________________________________ Da: Ludovic Court=E8s Inviato: mercoled=EC 23 ottobre 2024 22:26 A: Marco Fortina Cc: guix-devel@gnu.org Oggetto: Re: guix shell: error: symlink: File exists: "/bin/cc" Hi, Marco Fortina skribis: > I have this issue when with guix time-machine shell when using --emulate-= fhs option and having gcc-toolset and clang-toolset in my manifest.scm. I tried, and for those reading along, the problem is: --8<---------------cut here---------------start------------->8--- $ guix shell -CF gcc-toolchain clang-toolchain guix shell: error: symlink: File exists: "/bin/cc" --8<---------------cut here---------------end--------------->8--- > --- a/gnu/packages/llvm.scm > +++ b/gnu/packages/llvm.scm > @@ -512,8 +512,10 @@ (define-public (make-clang-toolchain clang libomp) > ;; Create 'cc' and 'c++' so that one can use it as = a > ;; drop-in replacement for the default tool chain a= nd > ;; have configure scripts find the compiler. > - (symlink "clang" (string-append out "/bin/cc")) > - (symlink "clang++" (string-append out "/bin/c++")) > + (unless (file-exists? "/bin/cc") > + (symlink "clang" (string-append out "/bin/cc"))= ) > + (unless (file-exists? "/bin/c++") > + (symlink "clang++" (string-append out "/bin/c++= "))) This part has no effect (there=92s no /bin/cc in the build environment.) > +++ b/guix/scripts/environment.scm > @@ -465,7 +465,8 @@ (define* (link-contents dir #:key (exclude '())) > ;; bin directories will link to /bin. > (let ((gcc-path (string-append profile "/bin/gcc"))) > (if (file-exists? gcc-path) > - (symlink gcc-path "/bin/cc"))) > + (unless (file-exists? "/bin/cc") > + (symlink gcc-path "/bin/cc")))) Good catch! I=92m proposing a slightly modified variant of this change: --_000_AS8PR10MB582917483C43AC0CB59FE23DF74E2AS8PR10MB5829EURP_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Hello!

Yes, only changes in the environment.scm files are required for fixing the = issue.

Why did you make the patch so complex?

> --- a/guix/scripts/environment.scm
> +++ b/guix/scripts/environment.scm
> @@ -464,8 +464,15 @@ (define (setup-fhs profile)
>    ;; /bin since that already has the sh symlink and the oth= er (optional) FHS
>    ;; bin directories will link to /bin.
>    (let ((gcc-path (string-append profile "/bin/gcc&quo= t;)))
> -    (if (file-exists? gcc-path)
> -        (symlink gcc-path "/bin/cc")))<= br> > +    (when (file-exists? gcc-path)
> +      (catch 'system-error
> +        (lambda ()
> +          (symlink gcc-path "/bin/= cc"))
> +        (lambda args
> +          ;; If /bin/cc already exists becau= se it was provided by another
> +          ;; package in PROFILE, such as 'cl= ang-toolchain', leave it.
> +          (unless (=3D EEXIST (system-error-= errno args))
> +            (apply throw args))))))
>  
>    ;; Guix's ldconfig doesn't search in FHS default location= s, so provide a
>    ;; minimal ld.so.conf.


was not enough ?

diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm
index a219b2ac89..37f11395f9 100644
--- a/guix/scripts/environment.scm
+++ b/guix/scripts/environment.scm
@@ -464,7 +464,8 @@ (define (setup-fhs profile)
   ;; /bin since that already has the sh symlink and the other (o= ptional) FHS
   ;; bin directories will link to /bin.
   (let ((gcc-path (string-append profile "/bin/gcc")))=
-    (if (file-exists? gcc-path)
+    (if (and (file-exists? gcc-path)
+             (not (file-exists? "/bin/c= c")))
         (symlink gcc-path "/bin/cc")))<= /div>
 
   ;; Guix's ldconfig doesn't search in FHS default locations, so= provide a


Da: Ludovic = Court=E8s <ludo@gnu.org>
Inviato: mercoled=EC 23 ottobre 2024 22:26
A: Marco Fortina <marco_fortina@hotmail.it>
Cc: guix-devel@gnu.org <guix-devel@gnu.org>
Oggetto: Re: guix shell: error: symlink: File exists: "/bi= n/cc"
 
Hi,

Marco Fortina <marco_fortina@hotmail.it> skribis:

> I have this issue when with guix time-machine shell when using --emula= te-fhs option and having gcc-toolset and clang-toolset in my manifest.scm.<= br>
I tried, and for those reading along, the problem is:

--8<---------------cut here---------------start------------->8---
$ guix shell -CF gcc-toolchain clang-toolchain
guix shell: error: symlink: File exists: "/bin/cc"
--8<---------------cut here---------------end--------------->8---

> --- a/gnu/packages/llvm.scm
> +++ b/gnu/packages/llvm.scm
> @@ -512,8 +512,10 @@ (define-public (make-clang-toolchain clang libomp= )
>            = ;           ;; Create 'cc= ' and 'c++' so that one can use it as a
>            = ;           ;; drop-in re= placement for the default tool chain and
>            = ;           ;; have confi= gure scripts find the compiler.
> -           &nb= sp;         (symlink "clang&qu= ot; (string-append out "/bin/cc"))
> -           &nb= sp;         (symlink "clang++&= quot; (string-append out "/bin/c++"))
> +           &nb= sp;         (unless (file-exists? &= quot;/bin/cc")
> +           &nb= sp;            = (symlink "clang" (string-append out "/bin/cc")))
> +           &nb= sp;         (unless (file-exists? &= quot;/bin/c++")
> +           &nb= sp;            = (symlink "clang++" (string-append out "/bin/c++")))
This part has no effect (there=92s no /bin/cc in the build environment.)
> +++ b/guix/scripts/environment.scm
> @@ -465,7 +465,8 @@ (define* (link-contents dir #:key (exclude '())) >    ;; bin directories will link to /bin.
>    (let ((gcc-path (string-append profile "/bin/gc= c")))
>      (if (file-exists? gcc-path)
> -        (symlink gcc-path "/b= in/cc")))
> +        (unless (file-exists? &quo= t;/bin/cc")
> +            (s= ymlink gcc-path "/bin/cc"))))

Good catch!  I=92m proposing a slightly modified variant of this chang= e:

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