[build] Remove mingw and mman-win23 dependencies

.github/dependabot.yml

@@ -17,7 +17,6 @@ updates:
       - dependency-name: "external/apksig"
       - dependency-name: "external/debugger-libs"
       - dependency-name: "external/lz4"
-      - dependency-name: "external/mman-win32"
       - dependency-name: "external/nrefactory"
       - dependency-name: "external/opentk"
       - dependency-name: "external/robin-map"

.gitmodules

@@ -14,10 +14,6 @@
     path = external/lz4
     url = https://github.com/lz4/lz4.git
     branch = release
-[submodule "external/mman-win32"]
-    path = external/mman-win32
-    url = https://github.com/alitrack/mman-win32.git
-    branch = master
 [submodule "external/nrefactory"]
     path = external/nrefactory
     url = https://github.com/xamarin/NRefactory.git

Configuration.Override.props.in

@@ -38,20 +38,6 @@
           - win-x86_64
     -->
     <AndroidSupportedTargetAotAbis>armeabi-v7a:win-armeabi-v7a:arm64:win-arm64:x86:win-x86:x86_64:win-x86_64</AndroidSupportedTargetAotAbis>
-    <!--
-      Colon-separated list of ABIs to build a "host" mono JIT for.
-      The host JIT is used for the designer in Visual Studio, among other things.
-      Supported ABIs include:
-      - Darwin
-      - Linux
-      - mxe-Win64
-      Note: Why colon? Because comma `,` and semicolon `;` can't be specified on the command-line.
-      -->
-    <AndroidSupportedHostJitAbis>Darwin:mxe-Win64</AndroidSupportedHostJitAbis>
-
-    <!-- C and C++ compilers to emit host-native binaries -->
-    <HostCc>clang</HostCc>
-    <HostCxx>clang++</HostCxx>
 
     <!-- These must be FULL PATHS -->
     <AndroidToolchainCacheDirectory>$(HOME)\android-archives</AndroidToolchainCacheDirectory>

Configuration.props

@@ -69,15 +69,6 @@
     <MicrosoftAndroidx64PackDir>$(BuildOutputDirectory)lib\packs\Microsoft.Android.Runtime.$(AndroidApiLevel).android-x64\$(AndroidPackVersion)\runtimes\android-x64\</MicrosoftAndroidx64PackDir>
     <MicrosoftAndroidSdkPackDir>$(BuildOutputDirectory)lib\packs\$(MicrosoftAndroidSdkPackName)\$(AndroidPackVersion)\</MicrosoftAndroidSdkPackDir>
     <MicrosoftAndroidSdkOutDir>$(MicrosoftAndroidSdkPackDir)\tools\</MicrosoftAndroidSdkOutDir>
-    <MingwDependenciesRootDirectory Condition=" '$(MingwDependenciesRootDirectory)' == '' ">$(MSBuildThisFileDirectory)\bin\Build$(Configuration)\mingw-deps</MingwDependenciesRootDirectory>
-    <HostCc Condition=" '$(HostCc)' == '' ">$(HostCc64)</HostCc>
-    <HostCxx Condition=" '$(HostCxx)' == '' ">$(HostCxx64)</HostCxx>
-    <HostCc Condition=" '$(HostCc)' == '' ">$(HostCc32)</HostCc>
-    <HostCxx Condition=" '$(HostCxx)' == '' ">$(HostCxx32)</HostCxx>
-    <HostCc Condition=" '$(HostCc)' == '' ">cc</HostCc>
-    <HostCxx Condition=" '$(HostCxx)' == '' ">c++</HostCxx>
-    <HostCcName Condition=" '$(HostCcName)' == '' ">cc</HostCcName>
-    <HostCxxName Condition=" '$(HostCxxName)' == '' ">c++</HostCxxName>
     <MakeConcurrency Condition=" '$(MakeConcurrency)' == '' And '$(HostCpuCount)' != '' ">-j$(HostCpuCount)</MakeConcurrency>
     <ManagedRuntime Condition=" '$(ManagedRuntime)' == '' And '$(OS)' != 'Windows_NT' ">mono</ManagedRuntime>
     <ManagedRuntimeArgs Condition=" '$(ManagedRuntimeArgs)' == '' And '$(ManagedRuntime)' == 'mono' ">--debug=casts</ManagedRuntimeArgs>
@@ -102,7 +93,6 @@
     <GradleHome Condition=" '$(GradleHome)' == '' ">$(MSBuildThisFileDirectory)build-tools\gradle</GradleHome>
     <GradleWPath Condition=" '$(GradleWPath)' == '' ">$(GradleHome)\gradlew</GradleWPath>
     <GradleArgs Condition=" '$(GradleArgs)' == '' ">--stacktrace --no-daemon</GradleArgs>
-    <AndroidSupportedHostJitAbis Condition=" '$(AndroidSupportedHostJitAbis)' == '' ">$(HostOS)</AndroidSupportedHostJitAbis>
     <AndroidSupportedTargetAotAbis Condition=" '$(AndroidSupportedTargetAotAbis)' == ''  And '$(HostOS)' == 'Windows' ">armeabi-v7a:arm64:x86:x86_64:win-armeabi-v7a:win-arm64:win-x86:win-x86_64</AndroidSupportedTargetAotAbis>
     <AndroidSupportedTargetAotAbis Condition=" '$(AndroidSupportedTargetAotAbis)' == '' ">armeabi-v7a:arm64:x86:x86_64</AndroidSupportedTargetAotAbis>
     <AndroidSupportedTargetJitAbis Condition=" '$(AndroidSupportedTargetJitAbis)' == '' ">armeabi-v7a:arm64-v8a:x86:x86_64</AndroidSupportedTargetJitAbis>
@@ -114,11 +104,6 @@
     <IgnoreMaxMonoVersion Condition=" '$(IgnoreMaxMonoVersion)' == '' And '$(RunningOnCI)' == 'true' ">False</IgnoreMaxMonoVersion>
     <IgnoreMaxMonoVersion Condition=" '$(IgnoreMaxMonoVersion)' == '' ">True</IgnoreMaxMonoVersion>
     <OpenTKSourceDirectory>$(MSBuildThisFileDirectory)external\opentk</OpenTKSourceDirectory>
-    <MingwZlibRootDirectory Condition=" '$(ZlibRootDirectory)' == '' And '$(HostOS)' == 'Linux' ">\usr</MingwZlibRootDirectory>
-    <MingwZlibRootDirectory Condition=" '$(ZlibRootDirectory)' == '' And '$(HostOS)' == 'Darwin' ">$(HostHomebrewPrefix)\opt\mingw-zlib\usr</MingwZlibRootDirectory>
-    <MingwZlibRootDirectory32>$(MingwZlibRootDirectory)\i686-w64-mingw32</MingwZlibRootDirectory32>
-    <MingwZlibRootDirectory64>$(MingwZlibRootDirectory)\x86_64-w64-mingw32</MingwZlibRootDirectory64>
-    <MingwZlibLibraryName>libz.a</MingwZlibLibraryName>
     <SqliteSourceDirectory Condition=" '$(SqliteSourceDirectory)' == '' ">$(MSBuildThisFileDirectory)external\sqlite</SqliteSourceDirectory>
     <XamarinAndroidSourcePath>$(MSBuildThisFileDirectory)</XamarinAndroidSourcePath>
     <ThirdPartySourcePath>$(MSBuildThisFileDirectory)src-ThirdParty\</ThirdPartySourcePath>
@@ -147,10 +132,6 @@
     <_TestsProfiledAotName Condition=" '$(AndroidEnableProfiledAot)' == 'true' ">-Profiled</_TestsProfiledAotName>
     <TestsFlavor>$(_TestsProfiledAotName)$(_TestsAotName)</TestsFlavor>
   </PropertyGroup>
-  <PropertyGroup>
-    <MingwCommandPrefix32>i686-w64-mingw32</MingwCommandPrefix32>
-    <MingwCommandPrefix64>x86_64-w64-mingw32</MingwCommandPrefix64>
-  </PropertyGroup>
   <PropertyGroup>
     <JavacSourceVersion>1.8</JavacSourceVersion>
     <JavacTargetVersion>1.8</JavacTargetVersion>
@@ -192,19 +173,6 @@
   <PropertyGroup>
     <SourceLink Condition=" Exists('$(MSBuildThisFileDirectory)bin/Build$(Configuration)/SourceLink.json') ">$(MSBuildThisFileDirectory)bin/Build$(Configuration)/SourceLink.json</SourceLink>
   </PropertyGroup>
-  <!--
-    "Fixup" $(AndroidSupportedHostJitAbis) so that Condition attributes elsewhere
-    can use `:ABI-NAME:`, to avoid substring mismatches.
-    -->
-  <PropertyGroup>
-    <AndroidSupportedHostJitAbisForConditionalChecks>$(AndroidSupportedHostJitAbis)</AndroidSupportedHostJitAbisForConditionalChecks>
-    <AndroidSupportedHostJitAbisForConditionalChecks Condition=" !$(AndroidSupportedHostJitAbisForConditionalChecks.EndsWith (':')) "   >$(AndroidSupportedHostJitAbisForConditionalChecks):</AndroidSupportedHostJitAbisForConditionalChecks>
-    <AndroidSupportedHostJitAbisForConditionalChecks Condition=" !$(AndroidSupportedHostJitAbisForConditionalChecks.StartsWith (':')) " >:$(AndroidSupportedHostJitAbisForConditionalChecks)</AndroidSupportedHostJitAbisForConditionalChecks>
-    <AndroidSupportedHostJitAbisSplit>$(AndroidSupportedHostJitAbis.Split(':'))</AndroidSupportedHostJitAbisSplit>
-  </PropertyGroup>
-  <ItemGroup>
-    <AndroidSupportedHostJitAbi Include="$(AndroidSupportedHostJitAbisSplit)" />
-  </ItemGroup>
   <!--
     "Fixup" $(AndroidSupportedTargetJitAbis) so that Condition attributes elsewhere
     can use `:ABI-NAME:`, to avoid substring mismatches.

Documentation/building/configuration.md

@@ -64,22 +64,6 @@ Overridable MSBuild properties include:
     building `src/Mono.Android`. This is usually the same value as
     `$(AndroidApiLevel)`, but may differ with Android Preview releases.
 
-  * `$(AndroidSupportedHostJitAbis)`: The Android ABIs for which to build a
-    host JIT *and* Xamarin.Android base class libraries (`mscorlib.dll`/etc.).
-    The "host JIT" is used e.g. with the Xamarin Studio Designer, to render
-    Xamarin.Android apps on the developer's machine.
-    There can also be support for cross-compiling mono for a different
-    host, e.g. to build Windows `libmonosgen-2.0.dll` from OS X.
-    Supported host values include:
-
-      * `Darwin`
-      * `Linux`
-      * `mxe-Win64`: Cross-compile Windows 64-bit binaries from Unix.
-
-    The default value is `$(HostOS)`, where `$(HostOS)` is based on probing
-    various environment variables and filesystem locations.
-    On OS X, the default would be `Darwin`.
-
   * `$(AndroidSupportedTargetAotAbis)`: The Android ABIs for which to build the
     Mono AOT compilers. The AOT compilers are required in order to set the
     [`$(RunAOTCompilation)`][runaotcompilation] app configuration property to True.
@@ -107,9 +91,6 @@ Overridable MSBuild properties include:
     check when building Mono.Android if set to `True`. The check is performed
     by default.
 
-  * `$(HostCc)`, `$(HostCxx)`: The C and C++ compilers to use to generate
-    host-native binaries.
-
   * `$(IgnoreMaxMonoVersion)`: Skip the enforcement of the `$(MonoRequiredMaximumVersion)`
     property. This is so that developers can run against the latest
     and greatest. But the build system can enforce the min and max 

Documentation/building/unix/instructions.md

@@ -330,8 +330,7 @@ The `ForceBuild` target can be executed as:
 
 The `ForceBuild` target will build mono for *all* configured architectures,
 then invoke the `_InstallRuntimes` target when all the mono's have finished
-building; see the `$(AndroidSupportedHostJitAbis)`,
-`$(AndroidSupportedTargetAotAbis)`, and `$(AndroidSupportedTargetJitAbis)`
+building; see the `$(AndroidSupportedTargetAotAbis)`, and `$(AndroidSupportedTargetJitAbis)`
 MSBuild properties within [README.md](../../README.md). This may not always be
 desirable, for example if you're trying to fix a Mono runtime bug for a
 specific ABI, and improving turnaround time is paramount.