Index: head/contrib/xz/src/liblzma/check/crc32_x86.S
===================================================================
--- head/contrib/xz/src/liblzma/check/crc32_x86.S
+++ head/contrib/xz/src/liblzma/check/crc32_x86.S
@@ -299,6 +299,6 @@
  * use __linux__ here, but I don't know a way to detect when
  * we are using GNU assembler.
  */
-#if defined(__ELF__) && defined(__linux__)
+#if defined(__ELF__) && (defined(__FreeBSD__) || defined(__linux__))
 	.section	.note.GNU-stack,"",@progbits
 #endif
Index: head/contrib/xz/src/liblzma/check/crc64_x86.S
===================================================================
--- head/contrib/xz/src/liblzma/check/crc64_x86.S
+++ head/contrib/xz/src/liblzma/check/crc64_x86.S
@@ -282,6 +282,6 @@
  * use __linux__ here, but I don't know a way to detect when
  * we are using GNU assembler.
  */
-#if defined(__ELF__) && defined(__linux__)
+#if defined(__ELF__) && (defined(__FreeBSD__) || defined(__linux__))
 	.section	.note.GNU-stack,"",@progbits
 #endif