Hi, On Windows XP, with GHC 6.4.1, I get the following error consistently when calling "system", from the module System. I get this error on two entirely different computers, one slow (750Mhz) system, and one fast (3Ghz) system. Its easiest to demonstrate when using GHCi, but the problem also occurs when running Haskell programs compiled with GHC. Prelude System> system "yhi Main" PreludeList.!!: on empty list *** Exception: waitForProcess: does not exist (No such file or directory)
From a windows standard console, in the same current directory, I get: Windows> yhi Main PreludeList.!!: on empty list
When calling yhi using system in other circumstances (on other programs), it works fine. The "PreludeList.!! ..." text is being generated by the yhi program. The yhi program is written in C, and is available from http://www.cs.york.ac.uk/~ndm/yhc/. Unfortunately this is probably a bit too large to use as a minimal test case, and takes quite a while to install/configure at the moment. Any idea why the waitForProcess error is being raised? Thanks Neil