compilers: pgi: fix preprocessing arguments

Based on reports from the users, PGI compilers need an explicit "-o -"
on the command line to emit preprocessed output on stdout.  Override
the methods in the PGICompiler mixin to add it when output goes to
stdout but not when output goes elsewhere.

Fixes: #13216
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/mesonbuild/compilers/mixins/pgi.py b/mesonbuild/compilers/mixins/pgi.py
index 50335c895..fddc8378f 100644
--- a/mesonbuild/compilers/mixins/pgi.py
+++ b/mesonbuild/compilers/mixins/pgi.py
@@ -54,6 +54,12 @@ class PGICompiler(Compiler):
     def openmp_flags(self, env: Environment) -> T.List[str]:
         return ['-mp']
 
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-E', '-P', '-o', '-']
+
+    def get_preprocess_to_file_args(self) -> T.List[str]:
+        return ['-E', '-P']
+
     def get_optimization_args(self, optimization_level: str) -> T.List[str]:
         return clike_optimization_args[optimization_level]