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Merge pull request #20 from icesparrow/bison-version
Check bison version during configuration
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# =========================================================================== | ||
# https://www.gnu.org/software/autoconf-archive/ax_compare_version.html | ||
# =========================================================================== | ||
# | ||
# SYNOPSIS | ||
# | ||
# AX_COMPARE_VERSION(VERSION_A, OP, VERSION_B, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) | ||
# | ||
# DESCRIPTION | ||
# | ||
# This macro compares two version strings. Due to the various number of | ||
# minor-version numbers that can exist, and the fact that string | ||
# comparisons are not compatible with numeric comparisons, this is not | ||
# necessarily trivial to do in a autoconf script. This macro makes doing | ||
# these comparisons easy. | ||
# | ||
# The six basic comparisons are available, as well as checking equality | ||
# limited to a certain number of minor-version levels. | ||
# | ||
# The operator OP determines what type of comparison to do, and can be one | ||
# of: | ||
# | ||
# eq - equal (test A == B) | ||
# ne - not equal (test A != B) | ||
# le - less than or equal (test A <= B) | ||
# ge - greater than or equal (test A >= B) | ||
# lt - less than (test A < B) | ||
# gt - greater than (test A > B) | ||
# | ||
# Additionally, the eq and ne operator can have a number after it to limit | ||
# the test to that number of minor versions. | ||
# | ||
# eq0 - equal up to the length of the shorter version | ||
# ne0 - not equal up to the length of the shorter version | ||
# eqN - equal up to N sub-version levels | ||
# neN - not equal up to N sub-version levels | ||
# | ||
# When the condition is true, shell commands ACTION-IF-TRUE are run, | ||
# otherwise shell commands ACTION-IF-FALSE are run. The environment | ||
# variable 'ax_compare_version' is always set to either 'true' or 'false' | ||
# as well. | ||
# | ||
# Examples: | ||
# | ||
# AX_COMPARE_VERSION([3.15.7],[lt],[3.15.8]) | ||
# AX_COMPARE_VERSION([3.15],[lt],[3.15.8]) | ||
# | ||
# would both be true. | ||
# | ||
# AX_COMPARE_VERSION([3.15.7],[eq],[3.15.8]) | ||
# AX_COMPARE_VERSION([3.15],[gt],[3.15.8]) | ||
# | ||
# would both be false. | ||
# | ||
# AX_COMPARE_VERSION([3.15.7],[eq2],[3.15.8]) | ||
# | ||
# would be true because it is only comparing two minor versions. | ||
# | ||
# AX_COMPARE_VERSION([3.15.7],[eq0],[3.15]) | ||
# | ||
# would be true because it is only comparing the lesser number of minor | ||
# versions of the two values. | ||
# | ||
# Note: The characters that separate the version numbers do not matter. An | ||
# empty string is the same as version 0. OP is evaluated by autoconf, not | ||
# configure, so must be a string, not a variable. | ||
# | ||
# The author would like to acknowledge Guido Draheim whose advice about | ||
# the m4_case and m4_ifvaln functions make this macro only include the | ||
# portions necessary to perform the specific comparison specified by the | ||
# OP argument in the final configure script. | ||
# | ||
# LICENSE | ||
# | ||
# Copyright (c) 2008 Tim Toolan <toolan@ele.uri.edu> | ||
# | ||
# 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. | ||
|
||
#serial 12 | ||
|
||
dnl ######################################################################### | ||
AC_DEFUN([AX_COMPARE_VERSION], [ | ||
AC_REQUIRE([AC_PROG_AWK]) | ||
# Used to indicate true or false condition | ||
ax_compare_version=false | ||
# Convert the two version strings to be compared into a format that | ||
# allows a simple string comparison. The end result is that a version | ||
# string of the form 1.12.5-r617 will be converted to the form | ||
# 0001001200050617. In other words, each number is zero padded to four | ||
# digits, and non digits are removed. | ||
AS_VAR_PUSHDEF([A],[ax_compare_version_A]) | ||
A=`echo "$1" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \ | ||
-e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \ | ||
-e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \ | ||
-e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \ | ||
-e 's/[[^0-9]]//g'` | ||
AS_VAR_PUSHDEF([B],[ax_compare_version_B]) | ||
B=`echo "$3" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \ | ||
-e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \ | ||
-e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \ | ||
-e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \ | ||
-e 's/[[^0-9]]//g'` | ||
dnl # In the case of le, ge, lt, and gt, the strings are sorted as necessary | ||
dnl # then the first line is used to determine if the condition is true. | ||
dnl # The sed right after the echo is to remove any indented white space. | ||
m4_case(m4_tolower($2), | ||
[lt],[ | ||
ax_compare_version=`echo "x$A | ||
x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/false/;s/x${B}/true/;1q"` | ||
], | ||
[gt],[ | ||
ax_compare_version=`echo "x$A | ||
x$B" | sed 's/^ *//' | sort | sed "s/x${A}/false/;s/x${B}/true/;1q"` | ||
], | ||
[le],[ | ||
ax_compare_version=`echo "x$A | ||
x$B" | sed 's/^ *//' | sort | sed "s/x${A}/true/;s/x${B}/false/;1q"` | ||
], | ||
[ge],[ | ||
ax_compare_version=`echo "x$A | ||
x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/true/;s/x${B}/false/;1q"` | ||
],[ | ||
dnl Split the operator from the subversion count if present. | ||
m4_bmatch(m4_substr($2,2), | ||
[0],[ | ||
# A count of zero means use the length of the shorter version. | ||
# Determine the number of characters in A and B. | ||
ax_compare_version_len_A=`echo "$A" | $AWK '{print(length)}'` | ||
ax_compare_version_len_B=`echo "$B" | $AWK '{print(length)}'` | ||
# Set A to no more than B's length and B to no more than A's length. | ||
A=`echo "$A" | sed "s/\(.\{$ax_compare_version_len_B\}\).*/\1/"` | ||
B=`echo "$B" | sed "s/\(.\{$ax_compare_version_len_A\}\).*/\1/"` | ||
], | ||
[[0-9]+],[ | ||
# A count greater than zero means use only that many subversions | ||
A=`echo "$A" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"` | ||
B=`echo "$B" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"` | ||
], | ||
[.+],[ | ||
AC_WARNING( | ||
[illegal OP numeric parameter: $2]) | ||
],[]) | ||
# Pad zeros at end of numbers to make same length. | ||
ax_compare_version_tmp_A="$A`echo $B | sed 's/./0/g'`" | ||
B="$B`echo $A | sed 's/./0/g'`" | ||
A="$ax_compare_version_tmp_A" | ||
# Check for equality or inequality as necessary. | ||
m4_case(m4_tolower(m4_substr($2,0,2)), | ||
[eq],[ | ||
test "x$A" = "x$B" && ax_compare_version=true | ||
], | ||
[ne],[ | ||
test "x$A" != "x$B" && ax_compare_version=true | ||
],[ | ||
AC_WARNING([illegal OP parameter: $2]) | ||
]) | ||
]) | ||
AS_VAR_POPDEF([A])dnl | ||
AS_VAR_POPDEF([B])dnl | ||
dnl # Execute ACTION-IF-TRUE / ACTION-IF-FALSE. | ||
if test "$ax_compare_version" = "true" ; then | ||
m4_ifvaln([$4],[$4],[:])dnl | ||
m4_ifvaln([$5],[else $5])dnl | ||
fi | ||
]) dnl AX_COMPARE_VERSION |
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# =========================================================================== | ||
# https://www.gnu.org/software/autoconf-archive/ax_prog_bison.html | ||
# =========================================================================== | ||
# | ||
# SYNOPSIS | ||
# | ||
# AX_PROG_BISON(ACTION-IF-TRUE,ACTION-IF-FALSE) | ||
# | ||
# DESCRIPTION | ||
# | ||
# Check whether bison is the parser generator. Run ACTION-IF-TRUE if | ||
# successful, ACTION-IF-FALSE otherwise | ||
# | ||
# LICENSE | ||
# | ||
# Copyright (c) 2009 Francesco Salvestrini <salvestrini@users.sourceforge.net> | ||
# Copyright (c) 2010 Diego Elio Petteno` <flameeyes@gmail.com> | ||
# | ||
# This program is free software; you can redistribute it and/or modify it | ||
# under the terms of the GNU General Public License as published by the | ||
# Free Software Foundation; either version 2 of the License, or (at your | ||
# option) any later version. | ||
# | ||
# This program is distributed in the hope that it will be useful, but | ||
# WITHOUT ANY WARRANTY; without even the implied warranty of | ||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General | ||
# Public License for more details. | ||
# | ||
# You should have received a copy of the GNU General Public License along | ||
# with this program. If not, see <https://www.gnu.org/licenses/>. | ||
# | ||
# As a special exception, the respective Autoconf Macro's copyright owner | ||
# gives unlimited permission to copy, distribute and modify the configure | ||
# scripts that are the output of Autoconf when processing the Macro. You | ||
# need not follow the terms of the GNU General Public License when using | ||
# or distributing such scripts, even though portions of the text of the | ||
# Macro appear in them. The GNU General Public License (GPL) does govern | ||
# all other use of the material that constitutes the Autoconf Macro. | ||
# | ||
# This special exception to the GPL applies to versions of the Autoconf | ||
# Macro released by the Autoconf Archive. When you make and distribute a | ||
# modified version of the Autoconf Macro, you may extend this special | ||
# exception to the GPL to apply to your modified version as well. | ||
|
||
#serial 10 | ||
|
||
AC_DEFUN([AX_PROG_BISON], [ | ||
AC_REQUIRE([AC_PROG_YACC]) | ||
AC_REQUIRE([AC_PROG_EGREP]) | ||
AC_CACHE_CHECK([if bison is the parser generator],[ax_cv_prog_bison],[ | ||
AS_IF([$YACC --version 2>/dev/null | $EGREP -q '^bison '], | ||
[ax_cv_prog_bison=yes], [ax_cv_prog_bison=no]) | ||
]) | ||
AS_IF([test "$ax_cv_prog_bison" = "yes"], [ | ||
dnl replace the yacc-compatible compiler with the real bison, as | ||
dnl otherwise autoconf limits us to the POSIX yacc. | ||
dnl We also change the generated filename to the old one, so that | ||
dnl automake's ylwrap can deal with it. | ||
YACC="${YACC% -y} -o y.tab.c" | ||
AC_SUBST(BISON,[$YACC]) | ||
] m4_ifnblank([$1], [[$1]]), | ||
m4_ifnblank([$2], [[$2]]) | ||
) | ||
]) |
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# =========================================================================== | ||
# https://www.gnu.org/software/autoconf-archive/ax_prog_bison_version.html | ||
# =========================================================================== | ||
# | ||
# SYNOPSIS | ||
# | ||
# AX_PROG_BISON_VERSION([VERSION],[ACTION-IF-TRUE],[ACTION-IF-FALSE]) | ||
# | ||
# DESCRIPTION | ||
# | ||
# Makes sure that bison version is greater or equal to the version | ||
# indicated. If true the shell commands in ACTION-IF-TRUE are executed. If | ||
# not the shell commands in commands in ACTION-IF-TRUE are executed. If | ||
# not the shell commands in ACTION-IF-FALSE are run. Note if $BISON is not | ||
# set (for example by running AC_CHECK_PROG or AC_PATH_PROG) the macro | ||
# will fail. | ||
# | ||
# Example: | ||
# | ||
# AC_PATH_PROG([BISON],[bison]) | ||
# AX_PROG_BISON_VERSION([3.0.2],[ ... ],[ ... ]) | ||
# | ||
# This will check to make sure that the bison you have is at least version | ||
# 3.0.2 or greater. | ||
# | ||
# NOTE: This macro uses the $BISON variable to perform the check. | ||
# | ||
# LICENSE | ||
# | ||
# Copyright (c) 2015 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com> | ||
# | ||
# Copying and distribution of this file, with or without modification, are | ||
# permitted in any medium without royalty provided the copyright notice | ||
# and this notice are preserved. This file is offered as-is, without any | ||
# warranty. | ||
|
||
#serial 3 | ||
|
||
AC_DEFUN([AX_PROG_BISON_VERSION],[ | ||
AC_REQUIRE([AC_PROG_SED]) | ||
AC_REQUIRE([AC_PROG_GREP]) | ||
AS_IF([test -n "$BISON"],[ | ||
ax_bison_version="$1" | ||
AC_MSG_CHECKING([for bison version]) | ||
changequote(<<,>>) | ||
bison_version=`$BISON --version 2>&1 \ | ||
| $SED -n -e '/bison (GNU Bison)/b inspect | ||
b | ||
: inspect | ||
s/.* (\{0,1\}\([0-9]*\.[0-9]*\.[0-9]*\))\{0,1\}.*/\1/;p'` | ||
changequote([,]) | ||
AC_MSG_RESULT($bison_version) | ||
AC_SUBST([BISON_VERSION],[$bison_version]) | ||
AX_COMPARE_VERSION([$bison_version],[ge],[$ax_bison_version],[ | ||
: | ||
$2 | ||
],[ | ||
: | ||
$3 | ||
]) | ||
],[ | ||
AC_MSG_WARN([could not find bison]) | ||
$3 | ||
]) | ||
]) |
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# =========================================================================== | ||
# https://www.gnu.org/software/autoconf-archive/ax_prog_flex.html | ||
# =========================================================================== | ||
# | ||
# SYNOPSIS | ||
# | ||
# AX_PROG_FLEX(ACTION-IF-TRUE,ACTION-IF-FALSE) | ||
# | ||
# DESCRIPTION | ||
# | ||
# Check whether flex is the scanner generator. Run ACTION-IF-TRUE if | ||
# successful, ACTION-IF-FALSE otherwise | ||
# | ||
# LICENSE | ||
# | ||
# Copyright (c) 2009 Francesco Salvestrini <salvestrini@users.sourceforge.net> | ||
# Copyright (c) 2010 Diego Elio Petteno` <flameeyes@gmail.com> | ||
# | ||
# This program is free software; you can redistribute it and/or modify it | ||
# under the terms of the GNU General Public License as published by the | ||
# Free Software Foundation; either version 2 of the License, or (at your | ||
# option) any later version. | ||
# | ||
# This program is distributed in the hope that it will be useful, but | ||
# WITHOUT ANY WARRANTY; without even the implied warranty of | ||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General | ||
# Public License for more details. | ||
# | ||
# You should have received a copy of the GNU General Public License along | ||
# with this program. If not, see <https://www.gnu.org/licenses/>. | ||
# | ||
# As a special exception, the respective Autoconf Macro's copyright owner | ||
# gives unlimited permission to copy, distribute and modify the configure | ||
# scripts that are the output of Autoconf when processing the Macro. You | ||
# need not follow the terms of the GNU General Public License when using | ||
# or distributing such scripts, even though portions of the text of the | ||
# Macro appear in them. The GNU General Public License (GPL) does govern | ||
# all other use of the material that constitutes the Autoconf Macro. | ||
# | ||
# This special exception to the GPL applies to versions of the Autoconf | ||
# Macro released by the Autoconf Archive. When you make and distribute a | ||
# modified version of the Autoconf Macro, you may extend this special | ||
# exception to the GPL to apply to your modified version as well. | ||
|
||
#serial 13 | ||
|
||
AC_DEFUN([AX_PROG_FLEX], [ | ||
AC_REQUIRE([AM_PROG_LEX]) | ||
AC_REQUIRE([AC_PROG_EGREP]) | ||
AC_CACHE_CHECK([if flex is the lexer generator],[ax_cv_prog_flex],[ | ||
AS_IF([$LEX --version 2>/dev/null | $EGREP -qw '^g?flex'], | ||
[ax_cv_prog_flex=yes], [ax_cv_prog_flex=no]) | ||
]) | ||
AS_IF([test "$ax_cv_prog_flex" = "yes"], | ||
m4_ifnblank([$1], [[$1]]), | ||
m4_ifnblank([$2], [[$2]]) | ||
) | ||
]) |
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