Brad King wrote:
Brandon J. Van Every wrote:
  
I explained the situation pretty clearly, I thought. 
E:\msys\1.0\bin\makefile does *NOT* run under a Windows command prompt. 
It's not supposed to.  As I said before, there's a comment at the top of
the binary that says it's not supposed to.  Just to reiterate again in
case there's any doubt:

E:\msys\1.0\bin>dir makeinfo
Volume in drive E is MONDRIAN
Volume Serial Number is 9CA0-CADF

Directory of E:\msys\1.0\bin

04/30/2004  11:15p             180,224 makeinfo
              1 File(s)        180,224 bytes
              0 Dir(s)  11,499,749,376 bytes free

E:\msys\1.0\bin>cmd
Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.

E:\msys\1.0\bin>makeinfo
'makeinfo' is not recognized as an internal or external command,
operable program or batch file.
    

I don't think your test is reliable.  My MSYS has a makeinfo.exe and it
runs under a windows shell.
  

My test is plenty reliable.  I have ***makeinfo***, not makeinfo.exe.  Please read *ALL* the details of my post.  There are ~30 tools in E:\msys\1.0\bin that do not have .exe suffixes, run fine under a MSYS shell, and are not intended to be run under anything but a MSYS shell.  EXECUTE_PROCESS is finding a way to run them.  My wild-assed-guess as to explanation, is that it execs arbitrarily named files, and does not check whether the filename is valid for a Windows command prompt.  These MSYS tools are probably valid apps in some Windows-native sense, but not to a Windows command prompt.


Anyway, if you want to test whether a program is executable under the
build environment, you should use TRY_COMPILE with a small project with
a custom command to run the program.

  

That is a (tedious) workaround, but I still say the behavior of EXECUTE_PROCESS is bugged.  I don't think anyone should have to write an OS-specific C coded exec wrapper just to determine if "makeinfo" actually works under the build environment. 


Cheers,
Brandon Van Every

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