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From: "unlvsur at live dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/100023] New: apple target cross compilation: fails
 configure: error: cannot compute suffix of object files: cannot compile
Date: Sat, 10 Apr 2021 19:05:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100023

            Bug ID: 100023
           Summary: apple target cross compilation: fails configure:
                    error: cannot compute suffix of object files: cannot
                    compile
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: unlvsur at live dot com
  Target Milestone: ---

Created attachment 50549
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D50549&action=3Dedit
build error message

then i tried to build a "hello world" with the new=20
cqwrteur@Home-Server:~/myhome/apple_cross/target_gcc$
x86_64-apple-darwin19.6.0-gcc -o b b.c -Ofast -s
Assembler messages:
Fatal error: invalid listing option `r'



it sounds like an issue related to as script

https://stackoverflow.com/questions/26197735/how-to-make-arm-cross-compilat=
ion-on-mac-os-x-error-invalid-listing-option-r=