hostmem-file: make available memory-backend-file on POSIX-based hosts

Before this change, memory-backend-file object is valid for Linux hosts
only because hostmem-file.c is compiled only on Linux hosts.
However, other POSIX-based hosts (such as macOS) can support
memory-backend-file object in the same way as on Linux hosts.
This patch makes hostmem-file.c and related functions to be compiled on
all POSIX-based hosts to make available memory-backend-file on them.

Signed-off-by: Hikaru Nishida <hikarupsp@gmail.com>
Message-Id: <20180924123205.29651-1-hikarupsp@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/memory.c b/memory.c
index aceadb2bf8..f797d82dd1 100644
--- a/memory.c
+++ b/memory.c
@@ -1557,7 +1557,7 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
     }
 }
 
-#ifdef __linux__
+#ifdef CONFIG_POSIX
 void memory_region_init_ram_from_file(MemoryRegion *mr,
                                       struct Object *owner,
                                       const char *name,