[Pkg-gmagick-im-team] Bug#1144811: imagemagick: test_float_t.sh script contains invalid C code on sh4

[Bastien Roucaries]

Le mercredi 19 août 2026, 08:20:33 heure d’été d’Europe centrale John Paul Adrian Glaubitz a écrit :
> Source: imagemagick
> Version: 8:7.1.2.29+dfsg2-1
> Severity: normal
> X-Debbugs-Cc: debian-superh at lists.debian.org
> User: debian-superh at lists.debian.org
> Usertags: sh4
> 
> Hi,
> 
> the script debian/test_float_t.sh contains invalid C code which FTBFS with:
> 
> make[1]: Entering directory '/home/glaubitz/imagemagick-sh4-new/imagemagick-7.1.2.29+dfsg2'
> /tmp/tmp.ynajwKcpye/float.c: In function 'main':
> /tmp/tmp.ynajwKcpye/float.c:13:9: error: duplicate case value
>    13 |         case(sizeof(long double)):
>       |         ^~~~
> /tmp/tmp.ynajwKcpye/float.c:10:9: note: previously used here
>    10 |         case(sizeof(double)):
>       |         ^~~~
> 
> The C code in the script looks like this:
> 
> int main()
> {   
>     switch(sizeof(float_t)) {
>         case(sizeof(float)):
>             printf("float");
>             return 0;
>         case(sizeof(double)):
>             printf("double");
>             return 0;
>         case(sizeof(long double)):
>             printf("long double");
>             return 0;
>         default:
>             printf("????");
>             return 1;
>     }
> }
> 
> The code becomes invalid the moment any of these types have the same size
> so that the switch statement becomes ambigious.

Oh is it documented that https://wiki.debian.org/ArchitectureSpecificsMemo ?

Note that:
according to doc on any arch float size is different then double

I am curious to know size of long double...

rouca

> 
> FWIW, the problem is currently obscured on the buildds due to an internal
> compiler error that is fixed with GCC 17 [1].
> 
> Adrian
> 
> > [1] https://buildd.debian.org/status/fetch.php?pkg=imagemagick&arch=sh4&ver=8%3A7.1.2.29%2Bdfsg2-1&stamp=1786936373&raw=0
> 
> --
>  .''`.  John Paul Adrian Glaubitz
> : :' :  Debian Developer
> `. `'   Physicist
>   `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913
> 

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