[MacPorts] #64013: Testing fails: ld: dynamic main executables must link with libSystem.dylib for architecture x86_64

[MacPorts]

#64013: Testing fails: ld: dynamic main executables must link with libSystem.dylib
for architecture x86_64
-------------------------+-----------------------------
  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:  MacPorts Future
 Component:  base        |    Version:  2.7.1
Resolution:              |   Keywords:  monterey
      Port:              |
-------------------------+-----------------------------
Changes (by ryandesign):

 * keywords:   => monterey


Old description:

> Testing base fails on macOS 11:
>
> {{{
> ===> making test in src/machista1.0
> clang -dynamiclib -g -O2 -std=c99 -Wextra -Wall -pedantic  -fPIC
> -Wl,-single_module \
>                 $(if [ 20 -lt 10 ]; then echo "-arch i386 -arch ppc";
> elif [ 20 -lt 20 ]; then echo "-arch x86_64 -arch i386"; else echo "-arch
> x86_64 -arch arm64"; fi) \
>                 -nostdlib \
>                 -install_name tests/libmachista-test-dependency.dylib \
>                 tests/empty.c \
>                 -o tests/libmachista-test-dependency.dylib
> ld: dynamic main executables must link with libSystem.dylib for
> architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to see
> invocation)
> make[2]: *** [tests/libmachista-test-dependency.dylib] Error 1
> make[1]: *** [test] Error 1
> make: *** [test] Error 1
> }}}

New description:

 Testing base fails on macOS 12:

 {{{
 ===> making test in src/machista1.0
 clang -dynamiclib -g -O2 -std=c99 -Wextra -Wall -pedantic  -fPIC
 -Wl,-single_module \
                 $(if [ 20 -lt 10 ]; then echo "-arch i386 -arch ppc"; elif
 [ 20 -lt 20 ]; then echo "-arch x86_64 -arch i386"; else echo "-arch
 x86_64 -arch arm64"; fi) \
                 -nostdlib \
                 -install_name tests/libmachista-test-dependency.dylib \
                 tests/empty.c \
                 -o tests/libmachista-test-dependency.dylib
 ld: dynamic main executables must link with libSystem.dylib for
 architecture x86_64
 clang: error: linker command failed with exit code 1 (use -v to see
 invocation)
 make[2]: *** [tests/libmachista-test-dependency.dylib] Error 1
 make[1]: *** [test] Error 1
 make: *** [test] Error 1
 }}}

--

Comment:

 We only see this on macOS 12,
 both [https://build.macports.org/builders/base-
 12_arm64/builds/6/steps/test/logs/stdio on arm64]
 and [https://build.macports.org/builders/base-
 12_x86_64/builds/7/steps/test/logs/stdio on x86_64].

-- 
Ticket URL: <https://trac.macports.org/ticket/64013#comment:1>
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