meson: update to 0.50.0

Required by MPD.

dev-util/meson/meson-0.50.0.recipe

@@ -2,11 +2,11 @@ SUMMARY="A High productivity build system"
 DESCRIPTION="Meson® is a project to create the best possible next-generation \
 build system."
 HOMEPAGE="https://mesonbuild.com/"
-COPYRIGHT="2013-2018 The Meson development team"
+COPYRIGHT="2013-2019 The Meson development team"
 LICENSE="Apache v2"
 REVISION="2"
 SOURCE_URI="https://github.com/mesonbuild/meson/releases/download/$portVersion/meson-$portVersion.tar.gz"
-CHECKSUM_SHA256="39ead8bfd0dc9c7b0af15e23ea975c864600bf871fba279c9918625bb9a85506"
+CHECKSUM_SHA256="2a1bc42dda58206fb922cda5e1ca95cc03ad126321d26acc47d3493ec4e7021f"
 PATCHES="meson-$portVersion.patchset"
 PYTHON_VERSION="3.6"
 

dev-util/meson/patches/meson-0.50.0.patchset

@@ -1,4 +1,4 @@
-From 85adb5a1499d8e5e5a1448c2f41834d16ff936a3 Mon Sep 17 00:00:00 2001
+From 9737a81fbcd3ff9471868393735c703335bb9963 Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Fran=C3=A7ois=20Revol?= <revol@free.fr>
 Date: Tue, 12 Mar 2019 03:39:42 +0100
 Subject: [PATCH] Properly detect 'bepc' as 'x86' CPU for Haiku
@@ -8,18 +8,18 @@ Subject: [PATCH] Properly detect 'bepc' as 'x86' CPU for Haiku
  1 file changed, 2 insertions(+)
 
 diff --git a/mesonbuild/environment.py b/mesonbuild/environment.py
-index 6c27043..2a33c66 100644
+index 08324632..74ce058c 100644
 --- a/mesonbuild/environment.py
 +++ b/mesonbuild/environment.py
-@@ -206,6 +206,8 @@ def detect_cpu_family(compilers):
+@@ -204,6 +204,8 @@ def detect_cpu_family(compilers):
          trial = platform.machine().lower()
      if trial.startswith('i') and trial.endswith('86'):
-         return 'x86'
-+    if trial == 'bepc':
-+        return 'x86'
-     if trial.startswith('arm'):
-         return 'arm'
-     if trial.startswith('ppc64'):
+         trial = 'x86'
++    elif trial == 'bepc':
++        trial = 'x86'
+     elif trial.startswith('arm'):
+         trial = 'arm'
+     elif trial.startswith('ppc64'):
 -- 
-2.19.1
+2.20.1