Skip to content

[mtouch] Make mtouch work without Xcode, since we don't really need Xcode for what mtouch currently does. #25430

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
rolfbjarne wants to merge 2 commits into
base: main
Choose a base branch
from
+26 −8
Draft

[mtouch] Make mtouch work without Xcode, since we don't really need Xcode for what mtouch currently does. #25430

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
7cdca93
[mtouch] Make mtouch work without Xcode, since we don't really need X…
rolfbjarne May 14, 2026
29abe1f
Use "libc" instead of "/usr/lib/libc.dylib" for realpath P/Invoke
rolfbjarne May 15, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 6 additions & 0 deletions tools/common/Application.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -263,6 +263,12 @@ public bool PackageManagedDebugSymbols {

public Version GetMacCatalystiOSVersion (Version macOSVersion)
{
if (macOSVersion.Major >= 26 && Driver.SdkRoot is null) {
// this shouldn't happen for normal builds, nor for customers, so just show a internal 99 warning.
ErrorHelper.Warning (99, Errors.MX0099, $"No Xcode configured, assuming the macOS version {macOSVersion} is identical to the Mac Catalyst/iOS version.");
return macOSVersion;
}

if (!MacCatalystSupport.TryGetiOSVersion (Driver.GetFrameworkDirectory (this), macOSVersion, out var value, out var knownMacOSVersions))
throw ErrorHelper.CreateError (184, Errors.MX0184 /* Could not map the macOS version {0} to a corresponding Mac Catalyst version. Valid macOS versions are: {1} */, macOSVersion.ToString (), string.Join (", ", knownMacOSVersions.OrderBy (v => v)));
Comment on lines +266 to 273

Expand Down
6 changes: 6 additions & 0 deletions tools/common/Driver.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,9 @@ static void ParseOptions (Application app, Mono.Options.OptionSet options, strin
options.Add ("rid=", "The runtime identifier we're building for", v => {
app.RuntimeIdentifier = v;
});
options.Add ("xcode-version=", "The Xcode version we're building with", v => {
Driver.XcodeVersion = Version.Parse (v);
});

try {
app.RootAssemblies.AddRange (options.Parse (args));
Expand Down Expand Up @@ -232,6 +235,9 @@ public static Version XcodeVersion {
get {
return xcode_version!;
}
set {
xcode_version = value;
}
}

static void SetCurrentLanguage ()
Expand Down
2 changes: 1 addition & 1 deletion tools/common/PathUtils.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ static char ToOrdinalIgnoreCase (char c)
return path;
}

[DllImport ("/usr/lib/libc.dylib")]
[DllImport ("libc")]
static extern IntPtr realpath (string path, IntPtr buffer);

#if NET
Expand Down
18 changes: 13 additions & 5 deletions tools/mtouch/Makefile
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -35,18 +35,23 @@ $(abspath Constants.cs): Constants.cs.in Makefile $(TOP)/Make.config.inc
#
define RunRegistrar
.libs/Microsoft.$(9).registrar.$(10)%m .libs/Microsoft.$(9).registrar.$(10)%h: $(TOP)/src/build/dotnet/$(1)/$(3)/Microsoft.$(9).dll $(LOCAL_MTOUCH) | .libs
$$(Q_GEN) $$(LOCAL_MTOUCH_COMMAND) $$(MTOUCH_VERBOSITY) --runregistrar:$$(abspath $$(basename $$@).m) --sdkroot $$(XCODE_DEVELOPER_ROOT) --sdk $(4) $$< --target-framework .NETCoreApp,Version=$(subst net,,$(DOTNET_TFM)),Profile=$(1) --abi $(2) --reference:$(DOTNET_BCL_DIR)/System.Runtime.dll --reference:$(DOTNET_BCL_DIR)/System.Runtime.InteropServices.dll --rid $(10)
$$(Q_GEN) $$(LOCAL_MTOUCH_COMMAND) $$(MTOUCH_VERBOSITY) --runregistrar:$$(abspath $$(basename $$@).m) --xcode-version $$(XCODE_VERSION) --sdk $(4) $$< --target-framework .NETCoreApp,Version=$(subst net,,$(DOTNET_TFM)),Profile=$(1) --abi $(2) --reference:$(DOTNET_BCL_DIR)/System.Runtime.dll --reference:$(DOTNET_BCL_DIR)/System.Runtime.InteropServices.dll --rid $(10)
$$(Q) touch $$(basename $$@).m $$(basename $$@).h

no-xcode-build:: .libs/Microsoft.$(9).registrar.$(10).m .libs/Microsoft.$(9).registrar.$(10).h

Comment on lines +41 to +42
.libs/Microsoft.$(9).registrar.$(10).a: .libs/Microsoft.$(9).registrar.$(10).m .libs/Microsoft.$(9).registrar.$(10).h | .libs
$$(Q_CC) $$(CLANG) -DDEBUG -g -gdwarf-2 $(6) -stdlib=libc++ -std=c++14 -x objective-c++ -o $$@ -c $$< -Wall -Wno-unguarded-availability-new -I$(TOP)/runtime

.libs/Microsoft.$(9).registrar.coreclr.$(10)%m .libs/Microsoft.$(9).registrar.coreclr.$(10)%h: $(TOP)/src/build/dotnet/$(1)/$(3)/Microsoft.$(9).dll $(LOCAL_MTOUCH) | .libs
$$(Q_GEN) $$(LOCAL_MTOUCH_COMMAND) $$(MTOUCH_VERBOSITY) --runregistrar:$$(abspath $$(basename $$@).m) --sdkroot $$(XCODE_DEVELOPER_ROOT) --sdk $(4) $$< --target-framework .NETCoreApp,Version=$(subst net,,$(DOTNET_TFM)),Profile=$(1) --abi $(2) --reference:$(DOTNET_BCL_DIR)/System.Runtime.dll --reference:$(DOTNET_BCL_DIR)/System.Runtime.InteropServices.dll --rid $(10) --xamarin-runtime CoreCLR
$$(Q_GEN) $$(LOCAL_MTOUCH_COMMAND) $$(MTOUCH_VERBOSITY) --runregistrar:$$(abspath $$(basename $$@).m) --xcode-version $$(XCODE_VERSION) --sdk $(4) $$< --target-framework .NETCoreApp,Version=$(subst net,,$(DOTNET_TFM)),Profile=$(1) --abi $(2) --reference:$(DOTNET_BCL_DIR)/System.Runtime.dll --reference:$(DOTNET_BCL_DIR)/System.Runtime.InteropServices.dll --rid $(10) --xamarin-runtime CoreCLR
$$(Q) touch $$(basename $$@).m $$(basename $$@).h

.libs/Microsoft.$(9).registrar.coreclr.$(10).a: .libs/Microsoft.$(9).registrar.coreclr.$(10).m .libs/Microsoft.$(9).registrar.$(10).h | .libs
$$(Q_CC) $$(CLANG) -DDEBUG -g -gdwarf-2 $(6) -stdlib=libc++ -std=c++14 -x objective-c++ -o $$@ -c $$< -Wall -Wno-unguarded-availability-new -I$(TOP)/runtime

no-xcode-build:: .libs/Microsoft.$(9).registrar.$(10).m .libs/Microsoft.$(9).registrar.$(10).h
no-xcode-build:: .libs/Microsoft.$(9).registrar.coreclr.$(10).m .libs/Microsoft.$(9).registrar.$(10).h
endef
$(eval $(call RunRegistrar,ios,x86_64,64,$(IOS_SDK_VERSION),iOS,$(iossimulator-x64_CFLAGS),,,iOS,iossimulator-x64))
$(eval $(call RunRegistrar,ios,arm64,64,$(IOS_SDK_VERSION),iOS,$(iossimulator-arm64_CFLAGS),,,iOS,iossimulator-arm64))
Expand Down Expand Up @@ -86,12 +91,15 @@ endef

$(foreach platform,$(DOTNET_PLATFORMS_MTOUCH),$(foreach rid,$(DOTNET_$(platform)_RUNTIME_IDENTIFIERS),$(eval $(call InstallRegistrar,$(platform),$(rid)))))

ifndef IS_LINUX
ifdef IS_LINUX
dotnet:: no-xcode-build
else
dotnet: $(TARGETS_DOTNET)
install-local:: $(TARGETS_DOTNET)
all-local:: $(TARGETS_DOTNET)
endif

install-local:: dotnet
all-local:: dotnet

clean-local::
rm -Rf bin obj

Expand Down
2 changes: 0 additions & 2 deletions tools/mtouch/mtouch.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,8 +22,6 @@ static int Main2 (string [] args)
var os = new OptionSet ();
ParseOptions (app, os, args);

ValidateXcode (app, false, false);

app.InitializeCommon ();
app.RunRegistrar ();

Expand Down
Loading