From d63c5413831a00ef2ebf0200bd30c74a691b8c89 Mon Sep 17 00:00:00 2001
From: Stephen L Arnold <sarnold@vctlabs.com>
Date: Sun, 23 Jul 2023 11:24:58 -0700
Subject: [PATCH] fix timespec redefinition errors on windows

* win pthreads module tries to define timespec if HAVE_STRUCT_TIMESPEC
  is not defined except msys/mingw already defines it

Signed-off-by: Stephen L Arnold <sarnold@vctlabs.com>
---
 CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9b6b02e57a..3ea3a439a9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -168,16 +168,16 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
             "_MBCS"
             "_SCL_SECURE_NO_WARNINGS"
             "_CRT_SECURE_NO_WARNINGS"
-            "HAVE_STRUCT_TIMESPEC"
             "_XKEYCHECK_H"
     )
 endif()
 if(WIN32)
     if(MINGW OR MSYS)
-        add_definitions(-DWIN32 -D__MINGW32__)
+        add_definitions(-DWIN32 -D__MINGW32__ -DHAVE_STRUCT_TIMESPEC)
     endif()
     target_compile_definitions(abc_interface
         INTERFACE
+            $<$<BOOL:${ABC_USE_NO_PTHREADS}>:HAVE_STRUCT_TIMESPEC>
             $<$<BOOL:${BUILD_SHARED_LIBS}>:ABC_DLL=ABC_DLLEXPORT>
             $<$<NOT:$<BOOL:${BUILD_SHARED_LIBS}>>:WIN32_NO_DLL>
             $<$<NOT:$<BOOL:${BUILD_SHARED_LIBS}>>:ABC_NO_DYNAMIC_LINKING>