[百度空间] ld: add library file reference by path & file name

最新推荐文章于 2023-04-06 23:24:58 发布
转载 最新推荐文章于 2023-04-06 23:24:58 发布 · 65 阅读 · 0 ·
CC 4.0 BY-SA版权
原文链接：http://www.cnblogs.com/crazii/p/4512792.html

本文介绍了如何使用链接器选项来指定库文件。默认情况下，链接器会搜索带有lib前缀的库文件。但也可以通过指定路径和文件名的方式加载没有lib前缀的库文件。

By default, -l option will search libraries with lib* prefix in speficied search paths.

i.e.

1
ld -o a.out -lA cppmain.o

will search libA.so/libA.a in all library search paths.

 

but it is possbile to set library by using a path & any filename(without lib prefix): use -l:"PATH_TO_LIBFILE"

1
ld -o a.out -l:~/dynlib.foo

转载于:https://www.cnblogs.com/crazii/p/4512792.html

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# ld --help Usage: ld [options] file... Options: -a KEYWORD Shared library control for HP/UX compatibility -A ARCH, --architecture ARCH Set architecture -b TARGET, --format TARGET Specify target for fol...
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/usr/bin/ld: warning: libIlmImf-2_3.so.24, needed by ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7, not found (try using -rpath or -rpath-link) /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::InputFile::InputFile(char const*, int)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::OutputFile::setFrameBuffer(Imf_2_3::FrameBuffer const&amp;)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::FrameBuffer::insert(char const*, Imf_2_3::Slice const&amp;)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::Header::channels()&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::chromaticities(Imf_2_3::Header const&amp;)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::OutputFile::OutputFile(char const*, Imf_2_3::Header const&amp;, int)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::FrameBuffer::begin()&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::Header::Header(int, int, float, Imath_2_3::Vec2&lt;float&gt; const&amp;, float, Imf_2_3::LineOrder, Imf_2_3::Compression)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::Channel::Channel(Imf_2_3::PixelType, int, int, bool)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::Header::channels() const&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::InputFile::setFrameBuffer(Imf_2_3::FrameBuffer const&amp;)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::FrameBuffer::end()&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::InputFile::header() const&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::Header::~Header()&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::InputFile::readPixels(int, int)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::globalThreadCount()&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::Header::dataWindow() const&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::ChannelList::findChannel(char const*) const&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::OutputFile::~OutputFile()&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::Slice::Slice(Imf_2_3::PixelType, char*, unsigned long, unsigned long, int, int, double, bool, bool)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::Chromaticities::Chromaticities(Imath_2_3::Vec2&lt;float&gt; const&amp;, Imath_2_3::Vec2&lt;float&gt; const&amp;, Imath_2_3::Vec2&lt;float&gt; const&amp;, Imath_2_3::Vec2&lt;float&gt; const&amp;)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::OutputFile::writePixels(int)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::ChannelList::insert(char const*, Imf_2_3::Channel const&amp;)&#39; /usr/bin/ld: ../third_party/opencv3/lib64/libopencv_imgcodecs.so.3.4.7: undefined reference to `Imf_2_3::hasChromaticities(Imf_2_3::Header const&amp;)&#39; collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/ppocr.dir/build.make:320: ppocr] Error 1 make[1]: *** [CMakeFiles/Makefile2:115: CMakeFiles/ppocr.dir/all] Error 2 make: *** [Makefile:103: all] Error 2
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