commit 679f89bb7aa60701704a74525e5bb4f4fe5a9ef6
Author:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
AuthorDate: Tue Aug 12 19:35:27 2025 +0200
Commit:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
CommitDate: Tue Aug 12 19:35:27 2025 +0200

    Restore building for OpenBSD

 src/CMakeLists.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git src/CMakeLists.txt src/CMakeLists.txt
index d421450..f8d5299 100644
--- src/CMakeLists.txt
+++ src/CMakeLists.txt
@@ -532,7 +532,10 @@ endif(FLTK_USE_X11)
 
 if(FLTK_USE_WAYLAND)
   set(IDIRS "${CMAKE_CURRENT_BINARY_DIR}")
-  set(CDEFS "_GNU_SOURCE;HAVE_MEMFD_CREATE;HAVE_MKOSTEMP;HAVE_POSIX_FALLOCATE")
+  set(CDEFS "_GNU_SOURCE;HAVE_MKOSTEMP")
+  if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Linux" OR ${CMAKE_HOST_SYSTEM_NAME} STREQUAL "FreeBSD")
+    set(CDEFS "${CDEFS};HAVE_MEMFD_CREATE;HAVE_POSIX_FALLOCATE")
+  endif()
   set(COPTS "-fPIC")
   if(FLTK_USE_DBUS)
     pkg_check_modules(DBUS IMPORTED_TARGET dbus-1)