[PATCH v2] cobalt: allow to compile without __USE_LARGEFILE64

[Norbert Lange]

A header uses the off64_t which is only conditionally available,
causing compile failures.
The macro might be necessary to compile cobalt libraries,
but should not be needed for software depending on them.

Signed-off-by: Norbert Lange <nolange79 at gmail.com>
---
 include/cobalt/sys/mman.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/cobalt/sys/mman.h b/include/cobalt/sys/mman.h
index 1c47777a2..75a00da0c 100644
--- a/include/cobalt/sys/mman.h
+++ b/include/cobalt/sys/mman.h
@@ -31,8 +31,10 @@ extern "C" {
 COBALT_DECL(void *, mmap(void *addr, size_t length, int prot, int flags,
 			 int fd, off_t offset));
 
+#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
 COBALT_DECL(void *, mmap64(void *addr, size_t length, int prot, int flags,
 			   int fd, off64_t offset));
+#endif
 
 #ifdef __cplusplus
 }
-- 
2.26.1