compilers-fortran: Fix preprocessing when fortran uses concat operator

2 files changed, 7 insertions, 0 deletions

diff --git a/mesonbuild/compilers/fortran.py b/mesonbuild/compilers/fortran.py
index 180a2dbfa..6f4f3d2c1 100644
--- a/mesonbuild/compilers/fortran.py
+++ b/mesonbuild/compilers/fortran.py
@@ -446,6 +446,11 @@ class IntelLLVMFortranCompiler(IntelFortranCompiler):
 
     id = 'intel-llvm'
 
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-preprocess-only']
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return []
 
 class IntelClFortranCompiler(IntelVisualStudioLikeCompiler, FortranCompiler):
 
diff --git a/mesonbuild/compilers/mixins/gnu.py b/mesonbuild/compilers/mixins/gnu.py
index 9ea591e04..ddcd14a15 100644
--- a/mesonbuild/compilers/mixins/gnu.py
+++ b/mesonbuild/compilers/mixins/gnu.py
@@ -534,6 +534,8 @@ class GnuLikeCompiler(Compiler, metaclass=abc.ABCMeta):
         # We want to allow preprocessing files with any extension, such as
         # foo.c.in. In that case we need to tell GCC/CLANG to treat them as
         # assembly file.
+        if self.language == 'fortran':
+            return self.get_preprocess_only_args()
         lang = gnu_lang_map.get(self.language, 'assembler-with-cpp')
         return self.get_preprocess_only_args() + [f'-x{lang}']