D11517.id27757.diff
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D11517.id27757.diff
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	diff --git a/src/parser/xhpast/bin/xhpast_parse.php b/src/parser/xhpast/bin/xhpast_parse.php
	--- a/src/parser/xhpast/bin/xhpast_parse.php
	+++ b/src/parser/xhpast/bin/xhpast_parse.php
	@@ -11,6 +11,7 @@
	function xhpast_build() {
	$root = phutil_get_library_root('phutil');
	execx('%s', $root.'/../scripts/build_xhpast.sh');
	+ xhpast_is_available(true);
	}

	/**
	@@ -67,11 +68,16 @@
	/**
	* Checks if XHPAST is built and up-to-date.
	*
	+ * @param bool Force the availability of XHPAST.
	* @return bool
	*/
	-function xhpast_is_available() {
	+function xhpast_is_available($force = null) {
	static $available;

	+ if ($force !== null) {
	+ $available = $force;
	+ }
	+
	if ($available === null) {
	$available = xhpast_version() == 'xhpast version 5.5.8/1g';
	}