Bill：
Thank you for the help. I got the error message while I try to configure amber on my mac with the “./configure clang” option.
By the way, my clang version is
Apple LLVM version 9.1.0 (clang-902.0.39.2)
Target: x86_64-apple-darwin17.7.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
Best Regards
Xiaping
在 2018年9月12日 +0800 PM3:38，Bill Ross <ross.cgl.ucsf.edu>，写道：
Hi Xiaping,
Your experiment makes it sound like a bug - unusual to have one like
that. I'm not up on the compiler system so can't point to the file where
it exists. The Amber install is the first suspect, but it's also
possible it's the configuration system Amber uses.
For the official supporters, it would be good to report which config
option you used at setup.
Bill
On 9/12/18 12:29 AM, tang.xiaping.outlook.com wrote:
Hi, Bill:
Thank you very much for the reply. i looked at the manual and I think the gfortran is installed. When I compile with
"gfortran -Wall -O3 -ffree-form ff2c -o testp testp.f”
in the cpptraj directory, I does get the error message like I mentioned in the previous email.
However, if I replace ff2c with -ff2c, the compiling process does go through successfully. I’m wondering is this a bug in the configure process.
Best Regards
Xiaping
在 2018年9月12日 +0800 PM1:46，Bill Ross <ross.cgl.ucsf.edu>，写道：
This likely indicates a gfortan install issue. I would re-read
docs/blogs on amber/macos install, with attention to compiler requirements.
Bill
On 9/11/18 10:35 PM, tang.xiaping.outlook.com wrote:
gfortran: error: ff2c: No such file or directory"
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Received on Wed Sep 12 2018 - 01:00:02 PDT
