2 files changed, 3 insertions, 2 deletions
diff --git a/cgcc b/cgcc
index c97085e7..93bdc644 100755
--- a/cgcc
+++ b/cgcc
@@ -276,8 +276,7 @@ sub add_specs {
 	return (' --arch=x86_64' .
 		&float_types (1, 1, 33, [24,8], [53,11], [113,15]));
     } elsif ($spec eq 'ppc') {
-	return (' -D_BIG_ENDIAN' .
-		' --arch=ppc' .
+	return (' --arch=ppc' .
 		&float_types (1, 1, 21, [24,8], [53,11], [113,15]));
     } elsif ($spec eq 'ppc64') {
 	return (
diff --git a/lib.c b/lib.c
index fbf14282..fd45da5d 100644
--- a/lib.c
+++ b/lib.c
@@ -1514,6 +1514,8 @@ static void predefined_macros(void)
 		predefine("__powerpc", 1, "1");
 		predefine("__ppc__", 1, "1");
 		predefine("__PPC__", 1, "1");
+		if (arch_big_endian)
+			predefine("_BIG_DEBIAN", 1, "1");
 		break;
 	case MACH_RISCV64:
 	case MACH_RISCV32: