/MyProject/../../../boost_1_42_0/boost/gil/extension/io/jpeg_io_private.hpp:89: undefined reference to `jpeg_std_error' /MyProject/../../../boost_1_42_0/boost/gil/extension/io/jpeg_io_private.hpp:90: undefined reference to `jpeg_CreateDecompress' /MyProject/../../../boost_1_42_0/boost/gil/extension/io/jpeg_io_private.hpp:91: undefined reference to `jpeg_stdio_src' /MyProject/../../../boost_1_42_0/boost/gil/extension/io/jpeg_io_private.hpp:92: undefined reference to `jpeg_read_header' /MyProject/../../../boost_1_42_0/boost/gil/extension/io/jpeg_io_private.hpp:98: undefined reference to `jpeg_destroy_decompress' /MyProject/../../../boost_1_42_0/boost/gil/extension/io/jpeg_io_private.hpp:102: undefined reference to `jpeg_start_decompress' /MyProject/../../../boost_1_42_0/boost/gil/extension/io/jpeg_io_private.hpp:111: undefined reference to `jpeg_read_scanlines' /MyProject/../../../boost_1_42_0/boost/gil/extension/io/jpeg_io_private.hpp:115: undefined reference to `jpeg_finish_decompress' :-1: error: collect2: ld returned 1 exit status
IDE: Qt Creator 1.3.1
Project type: Qt4 Console Application
Selected required modules: QtCore
Boost version: 1.42.0
Additional libraries: jpeg-8a from the Independent JPEG Group
The following source code was used:
#include <boost/gil/gil_all.hpp> #include <boost/gil/extension/io/jpeg_io.hpp> int main() { using namespace boost::gil; rgb8_image_t img; jpeg_read_image("test.jpg",img); }
The following project file was used:
#------------------------------------------------- # # Project created by QtCreator 2010-05-02T08:31:54 # #------------------------------------------------- QT -= gui TARGET = MyProject CONFIG += console CONFIG -= app_bundle INCLUDEPATH += ../../../boost_1_42_0 ../../../jpeg-8a TEMPLATE = app SOURCES += main.cpp
You need to link against the jpeg library. Add the following line to your project file: