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Something Apple did in either the latest update to Mojave or the latest Xcode breaks gfortran's (8.3.0) ability to find the system library. I updated to the latest macports recently, too. gfortran 8.3.0 that compiled code easily under previous versions of
Mojave/Xcode/macports now throws an error:
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M5118 error on build:</div>
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ld: library not found for -lSystem</div>
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collect2: error: ld returned 1 exit status</div>
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make[1]: *** [../lab/map51] Error 1</div>
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make: *** [build] Error 2 with gfortran 8.3.0</div>
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<div class="">Does anyone know anything about this?<br class="">
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<div class="">DN</div>
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David C Nicholls,<br class="">
Research School of Astronomy & Astrophysics<br class="">
Australian National University<br class="">
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