[flang-commits] [flang] 3db365d - [flang-rt] Fix defining `pid_t` on GPU builds (#178470)

[via flang-commits]

Author: Joseph Huber
Date: 2026-01-28T11:37:33-06:00
New Revision: 3db365d06eb72d3adf268405e9d6d7d419d5bf45

URL: https://github.com/llvm/llvm-project/commit/3db365d06eb72d3adf268405e9d6d7d419d5bf45
DIFF: https://github.com/llvm/llvm-project/commit/3db365d06eb72d3adf268405e9d6d7d419d5bf45.diff

LOG: [flang-rt] Fix defining `pid_t` on GPU builds (#178470)

Summary:
We support building flang-rt on GPU targets. These do not have POSIX
types so we should not include this if it's not present.

Added: 
    

Modified: 
    flang/include/flang/Runtime/extensions.h

Removed: 
    


################################################################################
diff  --git a/flang/include/flang/Runtime/extensions.h b/flang/include/flang/Runtime/extensions.h
index 40ce77112d183..7746116c7f1fc 100644
--- a/flang/include/flang/Runtime/extensions.h
+++ b/flang/include/flang/Runtime/extensions.h
@@ -18,8 +18,8 @@
 
 #define FORTRAN_PROCEDURE_NAME(name) name##_
 
-#ifdef _WIN32
-// UID and GID don't exist on Windows, these exist to avoid errors.
+#if defined(_WIN32) || !__has_include("sys/types.h")
+// UID and GID don't exist on all targets, these exist to avoid errors.
 typedef std::uint32_t uid_t;
 typedef std::uint32_t gid_t;
 #else