Patches for building watchman 4.9.0 <https://facebook.github.io/watchman/>

0001-fix-art.t-test-failure-on-alpine-linux.patch

From 65752efbecf15f8a24ee83126115fd578d2f86e9 Mon Sep 17 00:00:00 2001
From: Wez Furlong <[email protected]>
Date: Mon, 8 Jan 2018 21:57:43 -0800
Subject: [PATCH 1/2] fix art.t test failure on alpine linux

Summary:
Looks like we end up with root_ holding a nullptr after
the associated test is finished.  This only seems to be a problem
in practice on Alpine linux's musl libc based environment, and
only when built with `-O2`.  Not sure if this is a c++ standard
library implementation issue or a compiler optimization, or a
combination of both of those things.

Guard against that with a simple nullptr check.

Refs https://github.com/facebook/watchman/issues/546

Reviewed By: simpkins

Differential Revision: D6681244

fbshipit-source-id: f119b3552c0aeedc325fa83c71b12745536b1dac
---
 thirdparty/libart/src/art-inl.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/thirdparty/libart/src/art-inl.h b/thirdparty/libart/src/art-inl.h
index fce055be..acc7cd67 100644
--- a/thirdparty/libart/src/art-inl.h
+++ b/thirdparty/libart/src/art-inl.h
@@ -760,7 +760,7 @@ art_tree<ValueType, KeyType>::Node::maximum() const {
 template <typename ValueType, typename KeyType>
 typename art_tree<ValueType, KeyType>::Leaf*
 art_tree<ValueType, KeyType>::minimum() const {
-  return root_->minimum();
+  return root_ ? root_->minimum() : nullptr;
 }

 /**
@@ -769,7 +769,7 @@ art_tree<ValueType, KeyType>::minimum() const {
 template <typename ValueType, typename KeyType>
 typename art_tree<ValueType, KeyType>::Leaf*
 art_tree<ValueType, KeyType>::maximum() const {
-  return root_->maximum();
+  return root_ ? root_->maximum() : nullptr;
 }

 template <typename ValueType, typename KeyType>
--
2.21.0

0002-build.sh-script-to-remember-build-options.patch

From 827bda4d5f1c6550cefdd6701810a438b3f2f60f Mon Sep 17 00:00:00 2001
From: Laurent Boulard <[email protected]>
Date: Mon, 8 Apr 2019 14:22:19 +0200
Subject: [PATCH 2/2] build.sh script to remember build options

---
 build.sh | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100755 build.sh

diff --git a/build.sh b/build.sh
new file mode 100755
index 00000000..04ce9f10
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+set -eux
+./autogen.sh
+./configure --enable-lenient \
+       --localstatedir=/var \
+       --runstatedir=/run/watchman \
+       --sysconfdir=/etc \
+       --enable-statedir=/run/watchman
+make -j 4
+make check
+echo \# sudo make install
--
2.21.0