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<p>Hello,<br>


</p>


<p>Have you try to add the header files in the add_library command to explicitely add a dependency over it ?</p>


<p>add_library(MyLib SHARED my_source.cpp ../MyHeaders/header.hpp etc.)</p>


<div class="moz-cite-prefix">On 10/21/19 4:16 PM, David Aldrich wrote:<br>


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<blockquote type="cite" cite="mid:CAJK_ieiVP+ntvaZ5S8mjWSX6hJd+26xuN+brU-kCMD_mu94A7w@mail.gmail.com">


<div style="”font-family:Calibri;font-size:14.5px;font-weight:bold;color:Firebrick;line-height:0pt”">


WARNING: External email, please be mindful before clicking or replying.</div>


<br>


<div>


<div dir="ltr">Hi again,<br>


<br>


My CMakeLists.txt file for my shared library contains:<br>


<br>


add_library(MyLib SHARED my_source.cpp etc.)<br>


target_include_directories( MyLib PRIVATE ../MyHeaders)<br>


<br>


The library builds ok, but there is no dependency on directory ../MyHeaders - touching a header file does not result in a re-compile of dependent source files.<br>


<br>


There's a discussion here:<br>


<br>


<a href="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Furldefense.com%2Fv3%2F__https%3A%2F%2Fstackoverflow.com%2Fquestions%2F13703647%2Fhow-to-properly-add-include-directories-with-cmake__%3B!NS9wnPUNuDs!whDhrk7RGTn3RadMaGwNJ7gyGUJg_fOCmaUVKr9T3ock9JmdX37y1aDQW7XthkCVdA%24&data=01%7C01%7Cwilliam.bon%40caldera.com%7C2e78ae5316384a4a4aa908d756315037%7C3d2d2b6f061a48b6b4b39312d687e3a1%7C1&sdata=zpBAH%2BeG3WhFkfgnzt9iTMsiK0NBupnbI2fTjvoK3TM%3D&reserved=0" originalsrc="https://urldefense.com/v3/__https://stackoverflow.com/questions/13703647/how-to-properly-add-include-directories-with-cmake__;!NS9wnPUNuDs!whDhrk7RGTn3RadMaGwNJ7gyGUJg_fOCmaUVKr9T3ock9JmdX37y1aDQW7XthkCVdA$" shash="NfhvEmHKiPJi7Z7DrIL9B30MXwulQImwdgtCAeVCuxuq6OmeiI0zPZ3EXS4HasIU/s95ara/KL1pKEXT6FVFtdbR6f8vLQjcF1EeZ5UFyFIOYoWgvS+6fXqV1tWyVwBXaS18CHOYrFeowNfIziXFam94tRWpI0cw0GhIFiohCck=" moz-do-not-send="true">https://stackoverflow.com/questions/13703647/how-to-properly-add-include-directories-with-cmake</a>


  <br>


Opinion seems divided over whether or not it is necessary to add the header files to the list of source files for the target, e.g.:<br>


<br>


set(SOURCES file.cpp file2.cpp ${YOUR_DIRECTORY}/file1.h ${YOUR_DIRECTORY}/file2.h)<br>


add_library(test ${SOURCES})<br>


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</div>


<div>Please will you tell me what is the best practice?</div>


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<br>


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