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    <p>I am able to reproduce this problem in halld_sim. It does not
      occur in sim-recon.</p>
    <br>
    <div class="moz-cite-prefix">On 07/31/2018 07:25 PM, Paul Eugenio
      wrote:<br>
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      cite="mid:39DD4B15-0722-4ED2-A440-2E3C8F0A254E@fsu.edu">
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      I am building an executable from a git branch of halld_sim.   It
      seems that scons has lost the dependency build.  After modifying a
      source file, scons will build an updated object file but does not
      update the executable unless one removes both old executables in
      the associated $BMS_OSNAME/bin  and  ./$BMS_OSNAME/bin
       directories.    
      <div class=""><br class="">
      </div>
      <div class="">See the list of commands and the build times below.
        I build genr8, then modify the source and rebuild. The object
        file genr8.o gets updated but the executable does not.  But when
        I remove the development and the install genr8 executables,
        scons builds the update executable.   
        <div class=""><br class="">
        </div>
        <div class="">I’m guessing scons has some $HALLD_HOME issues.</div>
        <div class=""><br class="">
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        <div class="">Paul</div>
        <div class=""><br class="">
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        <div class=""><br class="">
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        <div class="">hnpgrid5 460% pwd<br class="">
/d/home/eugenio/gluex/git-work/halld_sim/src/programs/Simulation/genr8</div>
        <div class="">hnpgrid5 461% rm
          ../../../../Linux_CentOS7-x86_64-gcc4.8.5/bin/genr8</div>
        <div class="">
          <div class=""><br class="">
          </div>
          <div class="">hnpgrid5 462% scons -u install</div>
          <div class="">hnpgrid5 463% ls -l  `which genr8`<br class="">
            -rwxr-xr-x. 1 eugenio fsu 72K Jul 31
17:58 /d/home/eugenio/gluex/git-work//halld_sim/Linux_CentOS7-x86_64-gcc4.8.5/bin/genr8</div>
          <div class=""><br class="">
          </div>
          <div class="">hnpgrid5 464% emacs -nw genr8.c <br class="">
            hnpgrid5 465% scons -u install</div>
          <div class="">hnpgrid5 466% ls -l `which genr8`<br class="">
            -rwxr-xr-x. 1 eugenio fsu 72K Jul 31
17:58 /d/home/eugenio/gluex/git-work//halld_sim/Linux_CentOS7-x86_64-gcc4.8.5/bin/genr8</div>
          <div class=""><br class="">
          </div>
          <div class="">hnpgrid5 467% ls -l
            ../../../.Linux_CentOS7-x86_64-gcc4.8.5/programs/Simulation/genr8/*<br
              class="">
            -rwxr-xr-x. 1 eugenio fsu  73720 Jul 31 17:58 genr8<br
              class="">
            -rw-r--r--. 1 eugenio fsu 124576 Jul 31 18:01 genr8.o<br
              class="">
            <br class="">
          </div>
          <div class="">hnpgrid5 468% rm
            ../../../.Linux_CentOS7-x86_64-gcc4.8.5/programs/Simulation/genr8/genr8</div>
          <div class="">hnpgrid5 469% scons -u install</div>
          <div class=""><br class="">
          </div>
          <div class="">hnpgrid5 470% l `which genr8`<br class="">
            -rwxr-xr-x. 1 eugenio fsu 72K Jul 31
17:58 /d/home/eugenio/gluex/git-work//halld_sim/Linux_CentOS7-x86_64-gcc4.8.5/bin/genr8</div>
          <div class=""><br class="">
          </div>
          <div class="">hnpgrid5 471% ls -l
            ../../../.Linux_CentOS7-x86_64-gcc4.8.5/programs/Simulation/genr8/genr8*<br
              class="">
            -rwxr-xr-x. 1 eugenio fsu  73720 Jul 31 18:02 genr8<br
              class="">
            -rw-r--r--. 1 eugenio fsu 124576 Jul 31 18:01 genr8.o</div>
          <div class=""><br class="">
          </div>
          <div class="">hnpgrid5 472% rm
/d/home/eugenio/gluex/git-work//halld_sim/Linux_CentOS7-x86_64-gcc4.8.5/bin/genr8<br
              class="">
            hnpgrid5 473% scons -u install</div>
          <div class="">hnpgrid5 474% ls -l `which genr8`<br class="">
            -rwxr-xr-x. 1 eugenio fsu 72K Jul 31
18:02 /d/home/eugenio/gluex/git-work/halld_sim/Linux_CentOS7-x86_64-gcc4.8.5/bin/genr8<br
              class="">
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              <div style="color: rgb(0, 0, 0); letter-spacing: normal;
                text-align: start; text-indent: 0px; text-transform:
                none; white-space: normal; word-spacing: 0px;
                -webkit-text-stroke-width: 0px; word-wrap: break-word;
                -webkit-nbsp-mode: space; -webkit-line-break:
                after-white-space;" class="">
                <div style="color: rgb(0, 0, 0); font-family: Helvetica;
                  font-style: normal; font-variant-ligatures: normal;
                  font-variant-position: normal; font-variant-caps:
                  normal; font-variant-numeric: normal;
                  font-variant-alternates: normal;
                  font-variant-east-asian: normal; font-weight: normal;
                  letter-spacing: normal; line-height: normal; orphans:
                  2; text-align: -webkit-auto; text-indent: 0px;
                  text-transform: none; white-space: normal; widows: 2;
                  word-spacing: 0px; -webkit-text-stroke-width: 0px;
                  word-wrap: break-word; -webkit-nbsp-mode: space;
                  -webkit-line-break: after-white-space;" class="">
                  --<br class="">
                  Prof. Paul Eugenio<br class="">
                  Florida State University<br class="">
                  Department of Physics<br class="">
                  Tallahassee, Florida,  USA 32306<br class="">
                  <br class="">
                  (850) 644-2585<br class="">
                  <a href="mailto:peugenio@fsu.edu" class=""
                    moz-do-not-send="true">peugenio@fsu.edu</a><br
                    class="">
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      <pre wrap="">_______________________________________________
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<a class="moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/halld-offline">https://mailman.jlab.org/mailman/listinfo/halld-offline</a></pre>
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