--- a/src/local-elf.h	2018-04-21 17:30:22.000000000 -0400
+++ b/src/local-elf.h	2019-11-13 11:02:53.965684506 -0500
@@ -43,7 +43,7 @@
 #define ELF_TARG_CLASS	ELFCLASS64
 #define ELF_TARG_DATA	ELFDATA2LSB
 
-#elif defined(__amd64__)
+#elif defined(__amd64__) || defined(__x86_64__)
 
 #define ELF_TARG_MACH	EM_X86_64
 #if defined(__ILP32__)