compilers: Move the compiler argument to proxy linker flags to the compiler class

Instead of the DynamicLinker returning a hardcoded value like
`-Wl,-foo`, it now is passed a value that could be '-Wl,', or could be
something '-Xlinker='

This makes a few things cleaner, and will make it possible to fix using
clang (not clang-cl) on windows, where it invokes either link.exe or
lld-link.exe instead of a gnu-ld compatible linker.

1 files changed, 6 insertions, 0 deletions

diff --git a/mesonbuild/compilers/d.py b/mesonbuild/compilers/d.py
index 18e3bf9..5e0c173 100644
--- a/mesonbuild/compilers/d.py
+++ b/mesonbuild/compilers/d.py
@@ -67,6 +67,8 @@ dmd_optimization_args = {'0': [],
 
 class DmdLikeCompilerMixin:
 
+    LINKER_PREFIX = '-L'
+
     def get_output_args(self, target):
         return ['-of=' + target]
 
@@ -577,6 +579,10 @@ class DCompiler(Compiler):
 
 
 class GnuDCompiler(DCompiler, GnuCompiler):
+
+    # we mostly want DCompiler, but that gives us the Compiler.LINKER_PREFIX instead
+    LINKER_PREFIX = GnuCompiler.LINKER_PREFIX
+
     def __init__(self, exelist, version, for_machine: MachineChoice, arch, **kwargs):
         DCompiler.__init__(self, exelist, version, for_machine, arch, **kwargs)
         self.id = 'gcc'