Merge pull request #4257 from ron-at-swgy/OpenBSD-Updates

Updates for OpenBSD build support

Author: lperron

ortools/base/sysinfo.cc

@@ -17,7 +17,7 @@
 #if defined(__APPLE__) && defined(__GNUC__)  // MacOS
 #include <mach/mach_init.h>
 #include <mach/task.h>
-#elif defined(__FreeBSD__)  // FreeBSD
+#elif (defined(__FreeBSD__) || defined(__OpenBSD__))  // FreeBSD or OpenBSD
 #include <sys/resource.h>
 #include <sys/time.h>
 // Windows
@@ -49,7 +49,8 @@ int64_t GetProcessMemoryUsage() {
   return resident_memory;
 }
 #elif defined(__GNUC__) && !defined(__FreeBSD__) && \
-    !defined(__EMSCRIPTEN__) && !defined(_WIN32)  // Linux
+    !defined(__OpenBSD__) && !defined(__EMSCRIPTEN__) && \
+    !defined(_WIN32)  // Linux
 int64_t GetProcessMemoryUsage() {
   unsigned size = 0;
   char buf[30];
@@ -61,7 +62,7 @@ int64_t GetProcessMemoryUsage() {
   fclose(pf);
   return int64_t{1024} * size;
 }
-#elif defined(__FreeBSD__)                        // FreeBSD
+#elif (defined(__FreeBSD__) || defined(__OpenBSD__)) // FreeBSD or OpenBSD
 int64_t GetProcessMemoryUsage() {
   int who = RUSAGE_SELF;
   struct rusage rusage;

ortools/python/setup.py.in

@@ -136,6 +136,7 @@ setup(
         'Operating System :: Unix',
         'Operating System :: POSIX :: Linux',
         'Operating System :: POSIX :: BSD :: FreeBSD',
+        'Operating System :: POSIX :: BSD :: OpenBSD',
         'Operating System :: MacOS',
         'Operating System :: MacOS :: MacOS X',
         'Operating System :: Microsoft :: Windows',

ortools/util/zvector.h

@@ -14,7 +14,8 @@
 #ifndef OR_TOOLS_UTIL_ZVECTOR_H_
 #define OR_TOOLS_UTIL_ZVECTOR_H_
 
-#if (defined(__APPLE__) || defined(__FreeBSD__)) && defined(__GNUC__)
+#if (defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)) && \
+	defined(__GNUC__)
 #include <machine/endian.h>
 #elif !defined(_MSC_VER) && !defined(__MINGW32__) && !defined(__MINGW64__)
 #include <endian.h>