diff --git a/build/Jamfile.v2 b/build/Jamfile.v2
index eb83bbb..8d8dac8 100644
--- a/libs/context/build/Jamfile.v2
+++ b/libs/context/build/Jamfile.v2
@@ -646,6 +646,17 @@ alias asm_sources
      <toolset>clang
    ;

+alias asm_sources
+   : asm/make_x86_64_sysv_macho_gas.S
+     asm/jump_x86_64_sysv_macho_gas.S
+     asm/ontop_x86_64_sysv_macho_gas.S
+   : <abi>sysv
+     <address-model>64
+     <architecture>x86
+     <binary-format>mach-o
+     <toolset>gcc
+   ;
+
 alias asm_sources
    : asm/make_x86_64_sysv_macho_gas.S
      asm/jump_x86_64_sysv_macho_gas.S