May not be required (or at least some hunks) with next release (0.186?)

https://git.alpinelinux.org/aports/plain/main/elfutils/musl-macros.patch
--- a/lib/libeu.h
+++ b/lib/libeu.h
@@ -31,6 +31,27 @@
 
 #include <stddef.h>
 #include <stdint.h>
+#include <unistd.h>
+#include <alloca.h>
+#include <string.h>
+
+#ifndef TEMP_FAILURE_RETRY
+#define TEMP_FAILURE_RETRY(expression) \
+  (__extension__                                                              \
+   ({ long int __result;                                                     \
+       do __result = (long int) (expression);                                 \
+       while (__result == -1L && errno == EINTR);                             \
+       __result; }))
+#endif
+
+#ifndef strndupa
+#define strndupa(s, n) \
+       (__extension__ ({const char *__in = (s); \
+                        size_t __len = strnlen (__in, (n)) + 1; \
+                        char *__out = (char *) alloca (__len); \
+                        __out[__len-1] = '\0'; \
+                        (char *) memcpy (__out, __in, __len-1);}))
+#endif
 
 extern void *xmalloc (size_t) __attribute__ ((__malloc__));
 extern void *xcalloc (size_t, size_t) __attribute__ ((__malloc__));
--- a/src/arlib.h
+++ b/src/arlib.h
@@ -29,6 +29,16 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#if !defined(ACCESSPERMS)
+# define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
+#endif
+#if !defined(ALLPERMS)
+# define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO) /* 07777 */
+#endif
+#if !defined(DEFFILEMODE)
+# define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)/* 0666*/
+#endif
+
 
 /* State of -D/-U flags.  */
 extern bool arlib_deterministic_output;
--- a/src/elfcompress.c
+++ b/src/elfcompress.c
@@ -37,6 +37,14 @@
 #include "libeu.h"
 #include "printversion.h"
 
+#if !defined(FNM_EXTMATCH)
+# define FNM_EXTMATCH 0
+#endif
+
+#if !defined(ALLPERMS)
+# define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO) /* 07777 */
+#endif
+
 /* Name and version of program.  */
 ARGP_PROGRAM_VERSION_HOOK_DEF = print_version;
 
--- a/src/strip.c
+++ b/src/strip.c
@@ -45,6 +45,14 @@
 #include <system.h>
 #include <printversion.h>
 
+#if !defined(FNM_EXTMATCH)
+# define FNM_EXTMATCH 0
+#endif
+
+#if !defined(ACCESSPERMS)
+#define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO)
+#endif
+
 typedef uint8_t GElf_Byte;
 
 /* Name and version of program.  */