<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">I am not sure if this is the list meant for such questions but here goes.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> <br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">I am trying to compile a project where there are libraries and execs.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> One of the libraries built by the project "libUtils.a" needs to be linked against boost iostreams�</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> When compiling with toolset gcc it uses a linking command with start-group and end-group, but when compiling with toolset clang b2 uses a linking command like :</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> <br></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">"clang++" -L"/apps/bzip2/lib" -L"/apps/zlib/lib" � -o "fixfast/bin/clang-linux-3.3/release/link-static/fixfast-mds_MCAST" "fixfast/bin/clang-linux-3.3/release/link-static/fixfastDataD.o" �"/apps/boost/root/bin.v2/libs/iostreams/build/clang-linux-3.3/release/link-static/libboost_iostreams.a"�</font><span style="font-family:arial,helvetica,sans-serif">~/infra_install/lib/libCDef.a</span><span style="font-family:arial,helvetica,sans-serif">�-lbz2 -lz �-lpthread</span></div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">This produces linking errors like undefined references in boost</div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">When I reorder it to�</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> <br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><font face="arial, helvetica, sans-serif">"clang++" -L"/apps/bzip2/lib" -L"/apps/zlib/lib" � -o "fixfast/bin/clang-linux-3.3/release/link-static/fixfast-mds_MCAST" "fixfast/bin/clang-linux-3.3/release/link-static/fixfastDataD.o"�</font><font face="arial, helvetica, sans-serif">�</font><b>~/infra_install/lib/libCDef.a</b><font face="arial, helvetica, sans-serif">�<b>"/apps/boost/root/bin.v2/libs/iostreams/build/clang-linux-3.3/release/link-static/libboost_iostreams.a"</b></font>�-lbz2 -lz �-lpthread</div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">�i.e bring boost lib to the end it links fine.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> <br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">What am I doing wrong ? Any pointers ?</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> <br></div><div> <p> </p><font size="1"><font face="verdana, sans-serif"><br></font></font><div style="text-align:left"><font face="verdana, sans-serif">Gaurav Chakravorty ��</font><font face="verdana, sans-serif"><br>Circulum Vite LLC</font><font face="verdana, sans-serif"><br> 2500 PLAZA 5 . 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