When I try to compile
g++-4.2 memJpegDecoder.cpp
I get these errors.
/usr/lib/gcc/x86_64-linux-gnu/4.2.1/../../../../lib/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
/tmp/cci2IOXX.o: In function `memJpegDecoder::decompress()':
memJpegDecoder.cpp:(.text+0x5b5): undefined reference to `jpeg_calc_output_dimensions'
memJpegDecoder.cpp:(.text+0x68a): undefined reference to `jpeg_start_decompress'
memJpegDecoder.cpp:(.text+0x6ac): undefined reference to `jpeg_read_scanlines'
memJpegDecoder.cpp:(.text+0x730): undefined reference to `jpeg_finish_decompress'
memJpegDecoder.cpp:(.text+0x739): undefined reference to `jpeg_destroy_decompress'
/tmp/cci2IOXX.o: In function `memJpegDecoder::readHeader()':
memJpegDecoder.cpp:(.text+0x756): undefined reference to `jpeg_read_header'
/tmp/cci2IOXX.o: In function `memJpegDecoder::setSource(char*, long)':
memJpegDecoder.cpp:(.text+0x79a): undefined reference to `jpeg_std_error'
memJpegDecoder.cpp:(.text+0x7b7): undefined reference to `jpeg_CreateDecompress'
memJpegDecoder.cpp:(.text+0x7c8): undefined reference to `jpeg_mem_src'
collect2: ld returned 1 exit status
I've tried linking the libjpeg files in /usr/lib, but it doesn't seem to be working. The header file that makes these calls can be found at https://setisvn.ssl.berkeley.edu/svn/seti_boinc/jpeglib/jpeglib.h. Please let me know if you have any questions.