@node ax_compiler_version
@unnumberedsec ax_compiler_version

@majorheading Synopsis

@smallexample
AX_COMPILER_VERSION
@end smallexample

@majorheading Description

This macro retrieves the compiler version and returns it in the cache
variable $ax_cv_c_compiler_version for C and $ax_cv_cxx_compiler_version
for C++.

Version is returned as epoch:major.minor.patchversion

Epoch is used in order to have an increasing version number in case of
marketing change.

Epoch use: * borland compiler use chronologically 0turboc for turboc
era,

@smallexample
  1borlanc BORLANDC++ before 5, 2cppbuilder for cppbuilder era,
  3borlancpp for return of BORLANDC++ (after version 5.5),
  4cppbuilder for cppbuilder with year version,
  and 5xe for XE era.
@end smallexample

An empty string is returned otherwise.

@majorheading Source Code

Download the
@uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_compiler_version.m4,latest
version of @file{ax_compiler_version.m4}} or browse
@uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=history;f=m4/ax_compiler_version.m4,the
macro's revision history}.

@majorheading License

@w{Copyright @copyright{} 2014 Bastien ROUCARIES @email{roucaries.bastien+autoconf@@gmail.com}}

Copying and distribution of this file, with or without modification, are
permitted in any medium without royalty provided the copyright notice
and this notice are preserved. This file is offered as-is, without any
warranty.