Hi josch, > $ gcc -I/usr/include/freetype2 -I/usr/include/libpng16 -lmupdf -ljbig2dec > -ljpeg -lz -lm -lfreetype -lpng16 -lm -lz -lm -lz test.c > /usr/bin/ld: /tmp/ccCPwEIx.o: in function `main': > test.c:(.text+0x26): undefined reference to `fz_new_context_imp' > collect2: error: ld returned 1 exit status
When you put the libraries at the end (after the input file), it will proceed further: > $ gcc -I/usr/include/freetype2 -I/usr/include/libpng16 test.c -lmupdf > -ljbig2dec -ljpeg -lz -lm -lfreetype -lpng16 -lm -lz -lm -lz > /usr/bin/ld: > /usr/lib/gcc/x86_64-linux-gnu/8/../../../../lib/libmupdf.a(load-jpx.o): in > function `jpx_read_image': > (.text.jpx_read_image+0x79): undefined reference to > `opj_set_default_decoder_parameters' > /usr/bin/ld: (.text.jpx_read_image+0x95): undefined reference to > `opj_create_decompress' > /usr/bin/ld: (.text.jpx_read_image+0xaf): undefined reference to > `opj_set_info_handler' > /usr/bin/ld: (.text.jpx_read_image+0xc1): undefined reference to > `opj_set_warning_handler' But then it is really missing the opj/openjpeg symbols, so -lopenjpeg is actually required. openjpeg has been removed from Debian in 2016, as there is now openjpeg2 (-lopenjp2). After linking with openjpeg2 there are one undefined js_* symbols remaining, which seems to be coming from mupdf itself (according to codesearch.d.n). Regards, Reiner
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