spdlog: backport support for more Unices

gabime/spdlog@53b2308
gabime/spdlog@8d57823

Author: jbeich

Source/GmmLib/Utility/GmmLog/spdlog/details/os.h

@@ -39,8 +39,20 @@
 #include <unistd.h>
 #include <chrono>
 
-#elif __FreeBSD__
-#include <sys/thr.h> //Use thr_self() syscall under FreeBSD to get thread id
+#elif defined(_AIX)
+#include <pthread.h>     // for pthread_getthreadid_np
+
+#elif defined(__DragonFly__) || defined(__FreeBSD__)
+#include <pthread_np.h>  // for pthread_getthreadid_np
+
+#elif defined(__NetBSD__)
+#include <lwp.h>         // for _lwp_self
+
+#elif defined(__OpenBSD__)
+#include <unistd.h>      // for getthrid
+
+#elif defined(__sun)
+#include <thread.h>      // for thr_self
 
 #else
 #include <thread>
@@ -213,7 +225,7 @@ inline size_t filesize(FILE *f)
 #else // unix
     int fd = fileno(f);
     //64 bits(but not in osx, where fstat64 is deprecated)
-#if !defined(__FreeBSD__) && !defined(__APPLE__) && (defined(__x86_64__) || defined(__ppc64__))
+#if (defined(__linux__) || defined(__sun) || defined(_AIX)) && (defined(__LP64__) || defined(_LP64))
     struct stat64 st;
     if (fstat64(fd, &st) == 0)
         return static_cast<size_t>(st.st_size);
@@ -302,10 +314,14 @@ inline size_t thread_id()
 #  define SYS_gettid __NR_gettid
 # endif
     return  static_cast<size_t>(syscall(SYS_gettid));
-#elif __FreeBSD__
-    long tid;
-    thr_self(&tid);
-    return static_cast<size_t>(tid);
+#elif defined(_AIX) || defined(__DragonFly__) || defined(__FreeBSD__)
+    return static_cast<size_t>(pthread_getthreadid_np());
+#elif defined(__NetBSD__)
+    return static_cast<size_t>(_lwp_self());
+#elif defined(__OpenBSD__)
+    return static_cast<size_t>(getthrid());
+#elif defined(__sun)
+    return static_cast<size_t>(thr_self());
 #else //Default to standard C++11 (OSX and other Unix)
     return static_cast<size_t>(std::hash<std::thread::id>()(std::this_thread::get_id()));
 #endif