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-rw-r--r--Source/kwsys/SystemInformation.cxx3
1 files changed, 2 insertions, 1 deletions
diff --git a/Source/kwsys/SystemInformation.cxx b/Source/kwsys/SystemInformation.cxx
index d368fa2..6c12355 100644
--- a/Source/kwsys/SystemInformation.cxx
+++ b/Source/kwsys/SystemInformation.cxx
@@ -3871,7 +3871,8 @@ SystemInformation::LongLong SystemInformationImplementation::GetProcessId()
{
#if defined(_WIN32)
return GetCurrentProcessId();
-#elif defined(__linux) || defined(__APPLE__)
+#elif defined(__linux) || defined(__APPLE__) || defined(__OpenBSD__) || \
+ defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
return getpid();
#else
return -1;