Hello, I use bison-2.3a and discovered that the bison program reacts at the environment variable "M4": if it is set, it is supposed to contain a replacement program for the compiled-in m4.
This is not indicated in the documentation, and i suggest that it must be. That way, third parties (like maintainers of gcc-4.2.0) would find it a bad idea to install an environment variable M4="/tmp/.../gcc-4.2.0/missing m4" in the case where m4 is not present in the $PATH during the build of gcc-4.2.0. Currently, the result is "Broken Pipe", return code 141, no other explanation available. By the way, i also suggest that you use the environment variable "BISON_M4" instead of the very short "M4" for that purpose. You may find useful to forward this to the gcc-bug list. Regards. Denis Excoffier. This e-mail is intended only for the above addressee. It may contain privileged information. If you are not the addressee you must not copy, distribute, disclose or use any of the information in it. If you have received it in error please delete it and immediately notify the sender. Security Notice: all e-mail, sent to or from this address, may be accessed by someone other than the recipient, for system management and security reasons. This access is controlled under Regulation of security reasons. This access is controlled under Regulation of Investigatory Powers Act 2000, Lawful Business Practises.
