From ac7f1540127e429ae4c49042ea0c4aa8adc8e254 Mon Sep 17 00:00:00 2001
From: Kai Germaschewski <kai.germaschewski@unh.edu>
Date: Fri, 22 Sep 2023 08:22:11 -0400
Subject: [PATCH] workaround mem_info compile error on MacOS

This doesn't make mem_info work correctly, but at least it fixes the build.
Not sure it's worth it to fix this properly, though it could be done.
---
 include/gtensor/backend_host.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/gtensor/backend_host.h b/include/gtensor/backend_host.h
index 49efa736..df778c73 100644
--- a/include/gtensor/backend_host.h
+++ b/include/gtensor/backend_host.h
@@ -7,7 +7,9 @@
 #include <algorithm>
 #include <cstdint>
 
+#ifdef __linux__
 #include <sys/sysinfo.h>
+#endif
 
 // ======================================================================
 // gt::backend::host
@@ -69,10 +71,15 @@ class backend_ops<gt::space::host>
 
   static void mem_info(size_t* free, size_t* total)
   {
+#ifdef __linux__
     struct sysinfo info;
     sysinfo(&info);
     *total = info.totalram;
     *free = info.freeram;
+#else
+    *total = 0;
+    *free = 0;
+#endif
   }
 };