mirror of https://github.com/davatorium/rofi.git
67 lines
2.0 KiB
Plaintext
67 lines
2.0 KiB
Plaintext
# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_prog_flex_version.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_PROG_FLEX_VERSION([VERSION],[ACTION-IF-TRUE],[ACTION-IF-FALSE])
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#
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# DESCRIPTION
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#
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# Makes sure that flex version is greater or equal to the version
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# indicated. If true the shell commands in ACTION-IF-TRUE are executed. If
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# not the shell commands in commands in ACTION-IF-TRUE are executed. If
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# not the shell commands in ACTION-IF-FALSE are run. Note if $FLEX is not
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# set (for example by running AC_CHECK_PROG or AC_PATH_PROG) the macro
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# will fail.
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#
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# Example:
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#
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# AC_PATH_PROG([FLEX],[flex])
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# AX_PROG_FLEX_VERSION([2.5.39],[ ... ],[ ... ])
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#
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# This will check to make sure that the flex you have is at least version
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# 2.5.39 or greater.
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#
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# NOTE: This macro uses the $FLEX variable to perform the check.
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#
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# LICENSE
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#
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# Copyright (c) 2015 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 2
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AC_DEFUN([AX_PROG_FLEX_VERSION],[
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AC_REQUIRE([AC_PROG_SED])
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AC_REQUIRE([AC_PROG_GREP])
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AS_IF([test -n "$FLEX"],[
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ax_flex_version="$1"
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AC_MSG_CHECKING([for flex version])
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changequote(<<,>>)
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flex_version=`$FLEX --version 2>&1 \
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| $SED -n -e '/flex /s/.* (\{0,1\}\([0-9]*\.[0-9]*\.[0-9]*\))\{0,1\}.*/\1/;p'`
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changequote([,])
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AC_MSG_RESULT($flex_version)
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AC_SUBST([FLEX_VERSION],[$flex_version])
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AX_COMPARE_VERSION([$flex_version],[ge],[$ax_flex_version],[
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:
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$2
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],[
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:
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$3
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])
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],[
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AC_MSG_WARN([could not find flex])
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$3
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])
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])
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