Tests that try to access system libraries fail on Big Sur

[ryandesign (Ryan Carsten Schmidt)]

A test fails on macOS 11 Big Sur:

​https://build.macports.org/builders/base-11.0_arm64/builds/0/steps/test/logs/stdio

===> making test in src/machista1.0
clang -g -O2 -std=c99 -Wextra -Wall -pedantic  -fPIC -D_POSIX_SOURCE -o tests/libmachista-test -I. tests/libmachista-test.c libmachista.o hashmap.o
./tests/libmachista-test
Testing destroying NULL handle
Testing destroying NULL handle
	OK
Testing creating and destroying handles
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/objdump: error: '/usr/lib/libSystem.B.dylib': No such file or directory
	otool terminated with non-zero return value 1
Testing destroying NULL handle
	OK
Testing creating and destroying handles
	OK
Testing macho_format_dylib_version
	OK
Testing parsing libSystem.B.dylib
	Error parsing `/usr/lib/libSystem.B.dylib': Shared cache only
Testing destroying NULL handle
	OK
Testing creating and destroying handles
	OK
Testing macho_format_dylib_version
	OK
Testing parsing libSystem.B.dylib
	Process was terminated with non-zero return value 1: Error parsing libSystem.B.dylib
	Error
make[2]: *** [test] Error 1
make[1]: *** [test] Error 1
make: *** [test] Error 1

[Tatsh (Andrew Udvare)]

This is because of the shared library cache. Apple's system dylibs are no longer on the file system.

[jmroot (Joshua Root)]

[63ac5dfbdc9cc11d71552290abdebf96cb45267d/macports-base]