zstd: add ifndef guards for _LARGEFILE_SOURCE

This works around a redefinition error on 32-bit Linux. See facebook/zstd#2443.
indygreg · Dec 26, 2020 · fd9b88e · fd9b88e
1 parent 55715fc
commit fd9b88e
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/zstd/zstdlib.c b/zstd/zstdlib.c
@@ -79847,9 +79847,13 @@ ZDICT_optimizeTrainFromBuffer_fastCover(
 /* Unix Large Files support (>4GB) */
 #define _FILE_OFFSET_BITS 64
 #if (defined(__sun__) && (!defined(__LP64__)))   /* Sun Solaris 32-bits requires specific definitions */
+#  ifndef _LARGEFILE_SOURCE
 #  define _LARGEFILE_SOURCE
+#  endif
 #elif ! defined(__LP64__)                        /* No point defining Large file for 64 bit */
+#  ifndef _LARGEFILE64_SOURCE
 #  define _LARGEFILE64_SOURCE
+#  endif
 #endif