tuklib_physmem: Silence -Wsign-conversion on AIX

Closes: https://github.com/tukaani-project/xz/pull/168

diff --git a/src/common/tuklib_physmem.c b/src/common/tuklib_physmem.c
index 91f2d196d157b76720bd6d27ec996c0dd6e698d3..5988ba77a2845a912f563099c8fb4cf395d4c922 100644 (file)
--- a/src/common/tuklib_physmem.c
+++ b/src/common/tuklib_physmem.c
@@ -148,7 +148,7 @@ tuklib_physmem(void)
                        ret += entries[i].end - entries[i].start + 1;
 
 #elif defined(TUKLIB_PHYSMEM_AIX)
-       ret = _system_configuration.physmem;
+       ret = (uint64_t)_system_configuration.physmem;
 
 #elif defined(TUKLIB_PHYSMEM_SYSCONF)
        const long pagesize = sysconf(_SC_PAGESIZE);