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build openjpeg with -DCMAKE_BUILD_TYPE=Release #9

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kaczmarj
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This commit adds the option -DCMAKE_BUILD_TYPE=Release to the openjpeg build. Without this, ffast-math is not enabled and results in slower performance.

Related to discussion in Bayer-Group/tiffslide#72 (comment), where we found performance differences between tiffslide and openslide.

Dziekuje :)

This commit adds the option `-DCMAKE_BUILD_TYPE=Release` to the openjpeg build. Without this, ffast-math is not enabled and results in slower performance.

Related to discussion in Bayer-Group/tiffslide#72 (comment), where we found performance differences between tiffslide and openslide.

Dziekuje :)
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This change breaks functionality -- tests fail. I will look into why this is, but I assume it's due to fast-math.

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