clang: error: unable to execute command: Terminated: 15
clang: error: clang frontend command failed due to signal (use -v to see invocation)
Apple clang version 11.0.0 (clang-1100.0.33.8)
Target: x86_64-apple-darwin18.7.0
Thread model: posix
InstalledDir: /Applications/Xcode-11.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
clang: note: diagnostic msg: PLEASE submit a bug report to http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script.
make[1]: *** [obj/qwt_plot.o] Terminated: 15
make[1]: *** Waiting for unfinished jobs....
make[1]: *** [obj/qwt_plot_renderer.o] Terminated: 15
make[1]: *** [obj/qwt_plot_axis.o] Terminated: 15
make[1]: *** [obj/qwt_legend_label.o] Terminated: 15
make[1]: *** [obj/qwt_plot_directpainter.o] Terminated: 15
make[1]: *** [obj/qwt_plot_dict.o] Terminated: 15
make[1]: *** [obj/qwt_plot_curve.o] Terminated: 15
make[1]: *** [obj/qwt_plot_grid.o] Terminated: 15
/bin/sh: line 1: 81708 Terminated: 15          /Applications/Xcode-11.app/Contents/Developer/usr/bin/make -f Makefile
make: *** [sub-src-make_first-ordered] Error 143
ERROR: Exiting with code: 5