Feature/set meson b_vscrt with clang-cl

conan/tools/meson/toolchain.py

@@ -124,11 +124,12 @@ def __init__(self, conanfile, backend=None):
         cppstd = self._conanfile.settings.get_safe("compiler.cppstd")
         self._cpp_std = to_cppstd_flag(compiler, compiler_version, cppstd)
 
-        if compiler == "msvc":
+        self._b_vscrt = None
+        if compiler in ("msvc", "clang"):
             vscrt = msvc_runtime_flag(self._conanfile)
-            self._b_vscrt = str(vscrt).lower()
-        else:
-            self._b_vscrt = None
+            if vscrt:
+                self._b_vscrt = str(vscrt).lower()
+
         #: Dict-like object that defines Meson``properties`` with ``key=value`` format
         self.properties = {}
         #: Dict-like object that defines Meson ``project options`` with ``key=value`` format

conans/test/integration/toolchains/meson/test_mesontoolchain.py

@@ -1,5 +1,8 @@
+import platform
 import textwrap
 
+import pytest
+
 from conan.tools.meson import MesonToolchain
 from conans.test.utils.tools import TestClient
 
@@ -165,3 +168,40 @@ def generate(self):
     content = t.load(MesonToolchain.native_filename)
     assert "wrap_mode " not in content
     assert "nofallback" not in content
+
+
+@pytest.mark.skipif(platform.system() != "Windows", reason="requires Win")
+# @pytest.mark.tool("visual_studio", "17")
+# @pytest.mark.tool("clang", "16")
+@pytest.mark.parametrize("build_type,runtime,vscrt", [
+    ("Debug", "dynamic", "mdd"),
+    ("Debug", "static", "mtd"),
+    ("Release", "dynamic", "md"),
+    ("Release", "static", "mt")
+])
+def test_clang_cl_vscrt(build_type, runtime, vscrt):
+    profile = textwrap.dedent(f"""
+        [settings]
+        os=Windows
+        arch=x86_64
+        build_type={build_type}
+        compiler=clang
+        compiler.runtime={runtime}
+        compiler.runtime_type={build_type}
+        compiler.runtime_version=v143
+        compiler.version=16
+
+        [conf]
+        tools.cmake.cmaketoolchain:generator=Visual Studio 17
+
+        [buildenv]
+        CC=clang-cl
+        CXX=clang-cl
+   """)
+    t = TestClient()
+    t.save({"conanfile.txt": "[generators]\nMesonToolchain",
+            "profile": profile})
+
+    t.run("install . -pr:h=profile -pr:b=profile")
+    content = t.load(MesonToolchain.native_filename)
+    assert f"b_vscrt = '{vscrt}'" in content