70 lines
2.7 KiB
Plaintext
70 lines
2.7 KiB
Plaintext
# ===========================================================================
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# http://www.gnu.org/software/autoconf-archive/ax_is_release.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_IS_RELEASE(POLICY)
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#
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# DESCRIPTION
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#
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# Determine whether the code is being configured as a release, or from
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# git. Set the ax_is_release variable to 'yes' or 'no'.
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#
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# If building a release version, it is recommended that the configure
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# script disable compiler errors and debug features, by conditionalising
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# them on the ax_is_release variable. If building from git, these
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# features should be enabled.
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#
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# The POLICY parameter specifies how ax_is_release is determined. It can
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# take the following values:
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#
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# * git-directory: ax_is_release will be 'no' if a '.git' directory exists
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# * minor-version: ax_is_release will be 'no' if the minor version number
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# in $PACKAGE_VERSION is odd; this assumes
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# $PACKAGE_VERSION follows the 'major.minor.micro' scheme
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# * micro-version: ax_is_release will be 'no' if the micro version number
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# in $PACKAGE_VERSION is odd; this assumes
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# $PACKAGE_VERSION follows the 'major.minor.micro' scheme
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# * always: ax_is_release will always be 'yes'
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# * never: ax_is_release will always be 'no'
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#
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# Other policies may be added in future.
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#
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# LICENSE
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#
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# Copyright (c) 2015 Philip Withnall <philip@tecnocode.co.uk>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved.
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#serial 4
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AC_DEFUN([AX_IS_RELEASE],[
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AC_BEFORE([AC_INIT],[$0])
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m4_case([$1],
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[git-directory],[
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# $is_release = (.git directory does not exist)
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AS_IF([test -d ${top_srcdir}/.git],[ax_is_release=no],[ax_is_release=yes])
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],
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[minor-version],[
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# $is_release = ($minor_version is even)
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minor_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]][[^.]]*.\([[^.]][[^.]]*\).*/\1/'`
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AS_IF([test "$(( $minor_version % 2 ))" -ne 0],
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[ax_is_release=no],[ax_is_release=yes])
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],
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[micro-version],[
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# $is_release = ($micro_version is even)
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micro_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]]*\.[[^.]]*\.\([[^.]]*\).*/\1/'`
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AS_IF([test "$(( $micro_version % 2 ))" -ne 0],
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[ax_is_release=no],[ax_is_release=yes])
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],
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[always],[ax_is_release=yes],
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[never],[ax_is_release=no],
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[
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AC_MSG_ERROR([Invalid policy. Valid policies: git-directory, minor-version.])
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])
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])
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