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Autotools: Check re2c version with AS_VERSION_COMPARE #15465

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Merged
merged 1 commit into from
Aug 22, 2024
+15 −38
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Autotools: Check re2c version with AS_VERSION_COMPARE #15465

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53 changes: 15 additions & 38 deletions build/php.m4
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Original file line number Diff line number Diff line change
Expand Up @@ -1724,54 +1724,31 @@ dnl
AC_DEFUN([PHP_PROG_RE2C],[
AC_CHECK_PROG([RE2C], [re2c], [re2c])

ifelse($1,,php_re2c_required_version='',php_re2c_required_version="$1")

if test -n "$RE2C"; then
php_re2c_check=
AS_VAR_IF([RE2C],,, [
AC_MSG_CHECKING([for re2c version])

php_re2c_version=$($RE2C --version | cut -d ' ' -f 2 2>/dev/null)
if test -z "$php_re2c_version"; then
php_re2c_version=0.0.0
fi
ac_IFS=$IFS; IFS="."
set $php_re2c_version
IFS=$ac_IFS
php_re2c_num=`expr [$]{1:-0} \* 10000 + [$]{2:-0} \* 100 + [$]{3:-0}`
php_re2c_check=ok

if test -z "$php_re2c_required_version" && test -z "$php_re2c_num"; then
php_re2c_check=invalid
elif test -n "$php_re2c_required_version"; then
ac_IFS=$IFS; IFS="."
set $php_re2c_required_version
IFS=$ac_IFS
php_re2c_required_num=`expr [$]{1:-0} \* 10000 + [$]{2:-0} \* 100 + [$]{3:-0}`
php_re2c_required_version="$php_re2c_required_version or later"

if test -z "$php_re2c_num" || test "$php_re2c_num" -lt "$php_re2c_required_num"; then
php_re2c_check=invalid
fi
fi
php_re2c_check=ok
AS_VERSION_COMPARE([$php_re2c_version], [$1],
[php_re2c_check=invalid])

if test "$php_re2c_check" != "invalid"; then
AC_MSG_RESULT([$php_re2c_version (ok)])
else
AC_MSG_RESULT([$php_re2c_version (too old)])
fi
fi
AS_VAR_IF([php_re2c_check], [invalid],
[AC_MSG_RESULT([$php_re2c_version (too old)])],
[AC_MSG_RESULT([$php_re2c_version (ok)])])
])

case $php_re2c_check in
""|invalid[)]
if test ! -f "$abs_srcdir/Zend/zend_language_scanner.c"; then
AS_CASE([$php_re2c_check],
[""|invalid], [
AS_IF([test ! -f "$abs_srcdir/Zend/zend_language_scanner.c"], [
AC_MSG_ERROR(m4_text_wrap([
re2c $php_re2c_required_version or newer is required to generate PHP
lexers.
re2c $1 or newer is required to generate PHP lexers.
]))
fi
])

RE2C="exit 0;"
;;
esac
])

PHP_SUBST([RE2C])
AS_VAR_SET([RE2C_FLAGS], m4_normalize(["$2"]))
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