尝试使用libCorePlot为arm64编译。我从这里复制了说明Using Core Plot 2 in an Xcode 5 project
lipo libCorePlot-CocoaTouch.a -info
Architectures in the fat file: libCorePlot-CocoaTouch.a are: armv7 i386 x86_64 arm64
Undefined symbols for architecture arm64:
"_vDSP_minvD", referenced from:
-[CPTPlot plotRangeForField:] in libCorePlot-CocoaTouch.a(CPTPlot.o)
"_vDSP_maxvD", referenced from:
-[CPTPlot plotRangeForField:] in libCorePlot-CocoaTouch.a(CPTPlot.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)