Add src/x86/asmnames.h to noinst_HEADERS In eaa59755fcbb692a8cb763c7f9f24a350aadbd30, macros from `unix64.S` were extracted into `asmnames.h` to be used with `win64.S` as well. As such these are required by `unix64.S`, which fails to build without them.
diff --git a/Makefile.am b/Makefile.am
index 4ddd12d..f47fef8 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -113,7 +113,7 @@ noinst_HEADERS = \
src/sparc/ffitarget.h src/sparc/internal.h \
src/tile/ffitarget.h \
src/vax/ffitarget.h \
- src/x86/ffitarget.h src/x86/internal.h src/x86/internal64.h \
+ src/x86/ffitarget.h src/x86/internal.h src/x86/internal64.h src/x86/asmnames.h \
src/xtensa/ffitarget.h \
src/dlmalloc.c