Mapcache build error #373

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1. szekerest

   self-assigned this

   on Mar 25, 2026
2. szekerest

   added a commit that references this issue on Mar 25, 2026

   Fix unresolved external symbol MIN referenced in function CreateWarpe…

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   0948ea2
3. rouault

   added a commit that references this issue on Mar 25, 2026

   Fix unresolved external symbol MIN referenced in function CreateWarpe…

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   0c59d00
4. github-actions

   added a commit that references this issue on Mar 25, 2026

   Fix unresolved external symbol MIN referenced in function CreateWarpe…

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   40ef626
5. jmckenna

   added a commit that references this issue on Mar 25, 2026

   Fix unresolved external symbol MIN referenced in function CreateWarpe…

   ...

   16a5376
6. sebastic commented on Apr 16, 2026

   

   sebastic

   on Apr 16, 2026

   Contributor

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   We need to use MAPCACHE_MIN instead.

   I used this patch instead:

   --- a/lib/source_gdal.c
   +++ b/lib/source_gdal.c
   @@ -347,9 +347,15 @@ CreateWarpedVRT( GDALDatasetH hSrcDS,
        {
            double dfDesiredXRes = (extent->maxx - extent->minx) / width;
            double dfDesiredYRes = (extent->maxy - extent->miny) / height;
   +#if GDAL_VERSION_NUM >= GDAL_COMPUTE_VERSION(3, 13, 0)
   +        double dfDesiredRes = CPL_MIN( dfDesiredXRes, dfDesiredYRes );
   +        double dfGuessedFullRes = CPL_MIN( adfDstGeoTransform[1],
   +                                   fabs(adfDstGeoTransform[5]) );
   +#else
            double dfDesiredRes = MIN( dfDesiredXRes, dfDesiredYRes );
            double dfGuessedFullRes = MIN( adfDstGeoTransform[1],
                                       fabs(adfDstGeoTransform[5]) );
   +#endif
            double dfApproxDstOvrRatio = dfDesiredRes / dfGuessedFullRes;
   
            GDALRasterBandH hFirstBand = GDALGetRasterBand(hSrcDS, 1);
7. jmckenna commented on Apr 16, 2026

   

   jmckenna

   on Apr 16, 2026

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   @sebastic meaning that the main branch here now still causes you build errors?
8. sebastic commented on Apr 16, 2026

   

   sebastic

   on Apr 16, 2026

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   @sebastic meaning that the main branch here now still causes you build errors?

   No, that likely builds successfully. 1.14.1 as used by the Debian package does not.

   👍React with 👍1Reacted by Jeff McKenna
9. jmckenna

   closed this as completedon Apr 20, 2026