https://svn.boost.org/trac10/ticket/7858 <p> instead it should search the directory in which main boost dir lies and then if not found should withdraw to defauld directory </p> <p> so in file : boost\tools\build\v2\engine\build.bat </p> <pre> if EXIST &#34;C:\MinGW\bin\gcc.exe&#34; ( set &#34;BOOST_JAM_TOOLSET=mingw&#34; set &#34;BOOST_JAM_TOOLSET_ROOT=C:\MinGW\&#34; goto :eof) call :Clear_Error </pre> <p> &lt;/pre&gt; }}} </p> <p> should instead be: </p> <pre> if EXIST &#34;..\MinGW\bin\gcc.exe&#34; ( set &#34;BOOST_JAM_TOOLSET=mingw&#34; set &#34;BOOST_JAM_TOOLSET_ROOT=..\MinGW\&#34; goto :eof) call :Clear_Error </pre> <p> to catch that mingw installation which lies along with boost in the same parent directory. This is needed in case both of them are run from removable drive or there are different pairs of boost and mingw for testing. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/7858 Trac 1.4.3