[Bug-apl] error building revision 1146 on macOS 10.14

[Jeff Derby]

i get:
---------
Undefined symbols for architecture x86_64:
  "Quad_PLOT::Quad_PLOT()",
referenced from:
      __GLOBAL__sub_I_Quad_PLOT.cc
in apl-Quad_PLOT.o
  "Quad_PLOT::~Quad_PLOT()",
referenced from:
      __GLOBAL__sub_I_Quad_PLOT.cc
in apl-Quad_PLOT.o
ld: symbol(s) not found for architecture
x86_64
clang: error: linker command failed
with exit code 1 (use -v to see invocation)
make[3]: *** [apl] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2
---------


Jeff H. Derby

IBM Corporation
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