1# =========================================================================== 2# http://www.gnu.org/software/autoconf-archive/ax_is_release.html 3# =========================================================================== 4# 5# SYNOPSIS 6# 7# AX_IS_RELEASE(POLICY) 8# 9# DESCRIPTION 10# 11# Determine whether the code is being configured as a release, or from 12# git. Set the ax_is_release variable to 'yes' or 'no'. 13# 14# If building a release version, it is recommended that the configure 15# script disable compiler errors and debug features, by conditionalising 16# them on the ax_is_release variable. If building from git, these 17# features should be enabled. 18# 19# The POLICY parameter specifies how ax_is_release is determined. It can 20# take the following values: 21# 22# * git-directory: ax_is_release will be 'no' if a '.git' directory exists 23# * minor-version: ax_is_release will be 'no' if the minor version number 24# in $PACKAGE_VERSION is odd; this assumes 25# $PACKAGE_VERSION follows the 'major.minor.micro' scheme 26# * micro-version: ax_is_release will be 'no' if the micro version number 27# in $PACKAGE_VERSION is odd; this assumes 28# $PACKAGE_VERSION follows the 'major.minor.micro' scheme 29# * always: ax_is_release will always be 'yes' 30# * never: ax_is_release will always be 'no' 31# 32# Other policies may be added in future. 33# 34# LICENSE 35# 36# Copyright (c) 2015 Philip Withnall <philip@tecnocode.co.uk> 37# 38# Copying and distribution of this file, with or without modification, are 39# permitted in any medium without royalty provided the copyright notice 40# and this notice are preserved. 41 42#serial 3 43 44AC_DEFUN([AX_IS_RELEASE],[ 45 AC_BEFORE([AC_INIT],[$0]) 46 47 m4_case([$1], 48 [git-directory],[ 49 # $is_release = (.git directory does not exist) 50 AS_IF([test -d .git],[ax_is_release=no],[ax_is_release=yes]) 51 ], 52 [minor-version],[ 53 # $is_release = ($minor_version is even) 54 minor_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]][[^.]]*.\([[^.]][[^.]]*\).*/\1/'` 55 AS_IF([test "$(( $minor_version % 2 ))" -ne 0], 56 [ax_is_release=no],[ax_is_release=yes]) 57 ], 58 [micro-version],[ 59 # $is_release = ($micro_version is even) 60 micro_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]]*\.[[^.]]*\.\([[^.]]*\).*/\1/'` 61 AS_IF([test "$(( $micro_version % 2 ))" -ne 0], 62 [ax_is_release=no],[ax_is_release=yes]) 63 ], 64 [always],[ax_is_release=yes], 65 [never],[ax_is_release=no], 66 [ 67 AC_MSG_ERROR([Invalid policy. Valid policies: git-directory, minor-version.]) 68 ]) 69]) 70