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agl / jbig2enc

JBIG2 Encoder
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Failed to build on Slackware/gcc/g++ 4.8.2 #54

Open bdheeman opened 6 years ago

bdheeman commented 6 years ago

I attempted to build and package it for Slackware (Porteus, indeed), but it failed using gcc/g++ version 4.8.2; though I locally and successfully build the following dependencies:

openjpeg 2.1.2 libwebp 0.6.0 libtiff 3.9.7 libpng 1.4.12 libjpeg v8a leptonica 1.74.4

jbig2.cc: In function ‘PIX* segment_image(PIX*, PIX*)’:
jbig2.cc:137:71: error: ‘expandBinaryPower2Low’ was not declared in this scope
                         pixd4->data, pixd4->w, pixd4->h, pixd4->wpl, 4);
                                                                       ^

I'm not a programmer, hence I followed INSTALL/README for all the above, but the jbig2enc lacks this kind of requisite and important information :-(

bdheeman commented 6 years ago

The git version/master I cloned today build nicely with above libraries, hence it can use a latest release of leptonica 1.74.4, as well and worked well for creating high quality PDF files from scanned black and white or monochrome 1-bit PBM files.

Thank you, and thank you for making available such a wonderful tool publicly.