Revert "meson: update to 0.52.0."

This reverts commit 6b8bf86f64.

0.52.0 did break gnome-builder https://gitlab.gnome.org/GNOME/gnome-builder/issues/1057

srcpkgs/meson/patches/fix-cross-vala.patch

@@ -0,0 +1,47 @@
+From 77c3e6a4aaed07e626f4bf4deb7eb66e0f03a33d Mon Sep 17 00:00:00 2001
+From: James Westman <flyingpimonster@flyingpimonster.net>
+Date: Mon, 24 Jun 2019 12:04:12 -0500
+Subject: [PATCH] Fix two errors when cross-compiling with Vala
+
+- AttributeError: 'ValaCompiler' object has no attribute 'get_program_dirs'
+
+  Fixed by adding a `get_program_dirs()` function to the base Compiler
+  class, to match `get_library_dirs()`
+
+- KeyError: 'vala_COMPILER'
+
+  Fixed by creating the Vala compile rules for all machines, not just
+  the build machine.
+---
+ mesonbuild/backend/ninjabackend.py | 3 +--
+ mesonbuild/compilers/compilers.py  | 3 +++
+ 2 files changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/mesonbuild/backend/ninjabackend.py b/mesonbuild/backend/ninjabackend.py
+index a454e6ab5f..b830e377e4 100644
+--- mesonbuild/backend/ninjabackend.py
++++ mesonbuild/backend/ninjabackend.py
+@@ -1653,8 +1653,7 @@ def generate_compile_rule_for(self, langname, compiler):
+                 self.generate_cs_compile_rule(compiler)
+             return
+         if langname == 'vala':
+-            if self.environment.machines.matches_build_machine(compiler.for_machine):
+-                self.generate_vala_compile_rules(compiler)
++            self.generate_vala_compile_rules(compiler)
+             return
+         if langname == 'rust':
+             self.generate_rust_compile_rules(compiler)
+diff --git a/mesonbuild/compilers/compilers.py b/mesonbuild/compilers/compilers.py
+index 5855de71c8..86c1e33407 100644
+--- mesonbuild/compilers/compilers.py
++++ mesonbuild/compilers/compilers.py
+@@ -1117,6 +1117,9 @@ def find_library(self, *args, **kwargs):
+     def get_library_dirs(self, *args, **kwargs):
+         return ()
+ 
++    def get_program_dirs(self, *args, **kwargs):
++        return ()
++
+     def has_multi_arguments(self, args, env) -> Tuple[bool, bool]:
+         raise EnvironmentException(
+             'Language {} does not support has_multi_arguments.'.format(

srcpkgs/meson/patches/fix-if-not-disabler.patch

@@ -1,123 +0,0 @@
-https://github.com/mesonbuild/meson/issues/6010
-
-This breaks build for wlroots and possibly other things.
-
-From 1930fc82e24a72625cd851903c22d893e4817a3c Mon Sep 17 00:00:00 2001
-From: Xavier Claessens <xavier.claessens@collabora.com>
-Date: Tue, 8 Oct 2019 11:02:00 -0400
-Subject: [PATCH 1/2] Fix `if not disabler()` case
-
-Closes: #6010
----
- mesonbuild/interpreterbase.py              |  2 ++
- test cases/common/163 disabler/meson.build | 22 ++++++++++++++++++++++
- 2 files changed, 24 insertions(+)
-
-diff --git a/mesonbuild/interpreterbase.py b/mesonbuild/interpreterbase.py
-index 082515c45a..5c83900292 100644
---- mesonbuild/interpreterbase.py
-+++ mesonbuild/interpreterbase.py
-@@ -500,6 +500,8 @@ def evaluate_dictstatement(self, cur):
- 
-     def evaluate_notstatement(self, cur):
-         v = self.evaluate_statement(cur.value)
-+        if is_disabler(v):
-+            return v
-         if not isinstance(v, bool):
-             raise InterpreterException('Argument to "not" is not a boolean.')
-         return not v
-diff --git a/test cases/common/163 disabler/meson.build b/test cases/common/163 disabler/meson.build
-index 5eb24ba11c..8da2a0bd14 100644
---- test cases/common/163 disabler/meson.build	
-+++ test cases/common/163 disabler/meson.build	
-@@ -76,3 +76,25 @@ else
-     has_not_changed = true
- endif
- assert(has_not_changed, 'App has changed.')
-+
-+if_is_disabled = true
-+if disabler()
-+  if_is_disabled = false
-+else
-+  if_is_disabled = false
-+endif
-+assert(if_is_disabled, 'Disabler in "if condition" must skip both blocks')
-+
-+if not disabler()
-+  if_is_disabled = false
-+else
-+  if_is_disabled = false
-+endif
-+assert(if_is_disabled, 'Disabler in "if not condition" must skip both blocks')
-+
-+if disabler() == 1
-+  if_is_disabled = false
-+else
-+  if_is_disabled = false
-+endif
-+assert(if_is_disabled, 'Disabler in "if a==b" must skip both blocks')
-
-From 9855b2d3c58800f485355229102212eaebf6645a Mon Sep 17 00:00:00 2001
-From: Xavier Claessens <xavier.claessens@collabora.com>
-Date: Tue, 8 Oct 2019 12:09:01 -0400
-Subject: [PATCH 2/2] Test disabler in foreach loops
-
-The is_disabler() check in evaluate_foreach() was useless because we
-already checked that items is a list.
----
- mesonbuild/interpreterbase.py              |  4 ----
- test cases/common/163 disabler/meson.build | 22 ++++++++++++++++++++++
- 2 files changed, 22 insertions(+), 4 deletions(-)
-
-diff --git a/mesonbuild/interpreterbase.py b/mesonbuild/interpreterbase.py
-index 5c83900292..562ba273c4 100644
---- mesonbuild/interpreterbase.py
-+++ mesonbuild/interpreterbase.py
-@@ -682,8 +682,6 @@ def evaluate_foreach(self, node):
-             if len(node.varnames) != 1:
-                 raise InvalidArguments('Foreach on array does not unpack')
-             varname = node.varnames[0].value
--            if is_disabler(items):
--                return items
-             for item in items:
-                 self.set_variable(varname, item)
-                 try:
-@@ -695,8 +693,6 @@ def evaluate_foreach(self, node):
-         elif isinstance(items, dict):
-             if len(node.varnames) != 2:
-                 raise InvalidArguments('Foreach on dict unpacks key and value')
--            if is_disabler(items):
--                return items
-             for key, value in items.items():
-                 self.set_variable(node.varnames[0].value, key)
-                 self.set_variable(node.varnames[1].value, value)
-diff --git a/test cases/common/163 disabler/meson.build b/test cases/common/163 disabler/meson.build
-index 8da2a0bd14..1f0580cb52 100644
---- test cases/common/163 disabler/meson.build	
-+++ test cases/common/163 disabler/meson.build	
-@@ -98,3 +98,25 @@ else
-   if_is_disabled = false
- endif
- assert(if_is_disabled, 'Disabler in "if a==b" must skip both blocks')
-+
-+loops = 0
-+disablers = 0
-+foreach i : [true, disabler(), true]
-+  loops += 1
-+  if is_disabler(i)
-+    disablers += 1
-+  endif
-+endforeach
-+assert(loops == 3, 'Disabler in foreach array')
-+assert(disablers == 1, 'Disabler in foreach array')
-+
-+loops = 0
-+disablers = 0
-+foreach k, i : {'a': true, 'b': disabler(), 'c': true}
-+  loops += 1
-+  if is_disabler(i)
-+    disablers += 1
-+  endif
-+endforeach
-+assert(loops == 3, 'Disabler in foreach dict')
-+assert(disablers == 1, 'Disabler in foreach dict')

srcpkgs/meson/template

@@ -1,6 +1,7 @@
 # Template file for 'meson'
 pkgname=meson
-version=0.52.0
+reverts="0.52.0_1 0.52.0_2"
+version=0.51.2
 revision=2
 archs=noarch
 build_style=python3-module
@@ -15,7 +16,7 @@ license="Apache-2.0"
 homepage="https://mesonbuild.com"
 changelog="https://raw.githubusercontent.com/mesonbuild/meson/master/docs/markdown/Release-notes-for-${version%.?}.0.md"
 distfiles="https://github.com/mesonbuild/meson/archive/${version}.tar.gz"
-checksum=0f426ed1362c38bcc5b9027ec6aec3445d6db88e8d7249ed992e9af88a42d0e0
+checksum=96871cf62c9cf2b212e2f38aa3e543323403b1314fd3835e14120ef837c00f01
 
 do_check() {
 	# meson depends on trillion of things to perform actual tests