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I recently upgraded from 10.6.8 to 10.7.5. I received the following error
message when attempting to execute an executable program "xxxxx.e" in the X11
mode
Launch of "xxxxx.e" failed:the legacy PowerPC architecture is no longer supported.
The program was created by linking Fortran object source and should not
depend on PowerPC code or Rosetta.
Guess what? You are wrong. The PPC Fortran compiler produced code that would run on a PPC processor. That code cannot run on the Intel processor. To get the program to run on a modern Mac the Fortran source code would need to be re-compiled by a compiler that could produce the Intel binary.
What Rosetta did was translate the PPC code to Intel code live. However, when Apple moved to the Intel processors they chose not to have Rosetta redone. The original Rosetta was purchased by Apple from third-party developers. No one but Apple knows the reason for that decision.
From 10.7.x on Macs only run on Intel processors so none of the older PPC apps can work.
Guess what? You are wrong. The PPC Fortran compiler produced code that would run on a PPC processor. That code cannot run on the Intel processor. To get the program to run on a modern Mac the Fortran source code would need to be re-compiled by a compiler that could produce the Intel binary.
What Rosetta did was translate the PPC code to Intel code live. However, when Apple moved to the Intel processors they chose not to have Rosetta redone. The original Rosetta was purchased by Apple from third-party developers. No one but Apple knows the reason for that decision.
From 10.7.x on Macs only run on Intel processors so none of the older PPC apps can work.
That is correct. Support for PowerPC was drop with any release of OS X greater then 10.6.8.
Maybe you provide us with more detail then just xxxx.e we might be able to help you.
Mac OS 10.7 PowerPC Architecture Support
