armltdclang: add support for ARM Ltd.'s `armclang` toolchain

This is another toolchain also called `armclang`, but it is not a cross
compiler like Keil's `armclang`. It is essentially the same as `clang`
based on its interface and CMake's support of the toolchain.

Use an `armltd` prefix for the compiler ID.

Fixes: #7255

1 files changed, 7 insertions, 1 deletions

diff --git a/mesonbuild/compilers/cpp.py b/mesonbuild/compilers/cpp.py
index 635cc55..20df359 100644
--- a/mesonbuild/compilers/cpp.py
+++ b/mesonbuild/compilers/cpp.py
@@ -155,7 +155,7 @@ class CPPCompiler(CLikeCompiler, Compiler):
         }
 
         # Currently, remapping is only supported for Clang, Elbrus and GCC
-        assert self.id in frozenset(['clang', 'lcc', 'gcc', 'emscripten'])
+        assert self.id in frozenset(['clang', 'lcc', 'gcc', 'emscripten', 'armltdclang'])
 
         if cpp_std not in CPP_FALLBACKS:
             # 'c++03' and 'c++98' don't have fallback types
@@ -259,6 +259,12 @@ class ClangCPPCompiler(ClangCompiler, CPPCompiler):
         return search_dirs + ['-lstdc++']
 
 
+class ArmLtdClangCPPCompiler(ClangCPPCompiler):
+    def __init__(self, *args, **kwargs):
+        ClangCPPCompiler.__init__(self, *args, **kwargs)
+        self.id = 'armltdclang'
+
+
 class AppleClangCPPCompiler(ClangCPPCompiler):
     def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
         # We need to apply the search prefix here, as these link arguments may