Index: popt-1.16/configure.ac
===================================================================
--- popt-1.16.orig/configure.ac
+++ popt-1.16/configure.ac
@@ -47,7 +47,7 @@ AC_SYS_LARGEFILE
 
 AC_ISC_POSIX
 
-AC_CHECK_HEADERS(float.h fnmatch.h glob.h langinfo.h libintl.h mcheck.h unistd.h)
+AC_CHECK_HEADERS(float.h fnmatch.h glob.h langinfo.h libintl.h mcheck.h unistd.h stdalign.h)
 
 # For some systems we know that we have ld_version scripts.
 # Use it then as default.
Index: popt-1.16/popt.c
===================================================================
--- popt-1.16.orig/popt.c
+++ popt-1.16/popt.c
@@ -25,6 +25,15 @@ extern long long int strtoll(const char
 
 #include "poptint.h"
 
+#ifdef HAVE_STDALIGN_H
+#include <stdalign.h>
+#define ALIGNOF(x) alignof(x)
+#elif defined __GNUC__
+#define ALIGNOF(x) __alignof__(x)
+#else
+#define ALIGNOF(x) sizeof(x)
+#endif
+
 #ifdef	MYDEBUG
 /*@unchecked@*/
 int _popt_debug = 0;
@@ -977,12 +986,8 @@ static unsigned int seed = 0;
 
 int poptSaveLongLong(long long * arg, unsigned int argInfo, long long aLongLong)
 {
-    if (arg == NULL
-#ifdef	NOTYET
     /* XXX Check alignment, may fail on funky platforms. */
-     || (((unsigned long long)arg) & (sizeof(*arg)-1))
-#endif
-    )
+    if (arg == NULL || (((unsigned long)arg) & (ALIGNOF(*arg)-1)))
 	return POPT_ERROR_NULLARG;
 
     if (aLongLong != 0 && LF_ISSET(RANDOM)) {
@@ -1023,7 +1028,7 @@ int poptSaveLongLong(long long * arg, un
 int poptSaveLong(long * arg, unsigned int argInfo, long aLong)
 {
     /* XXX Check alignment, may fail on funky platforms. */
-    if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
+    if (arg == NULL || (((unsigned long)arg) & (ALIGNOF(*arg)-1)))
 	return POPT_ERROR_NULLARG;
 
     if (aLong != 0 && LF_ISSET(RANDOM)) {
@@ -1056,7 +1061,7 @@ int poptSaveLong(long * arg, unsigned in
 int poptSaveInt(/*@null@*/ int * arg, unsigned int argInfo, long aLong)
 {
     /* XXX Check alignment, may fail on funky platforms. */
-    if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
+    if (arg == NULL || (((unsigned long)arg) & (ALIGNOF(*arg)-1)))
 	return POPT_ERROR_NULLARG;
 
     if (aLong != 0 && LF_ISSET(RANDOM)) {
@@ -1089,7 +1094,7 @@ int poptSaveInt(/*@null@*/ int * arg, un
 int poptSaveShort(/*@null@*/ short * arg, unsigned int argInfo, long aLong)
 {
     /* XXX Check alignment, may fail on funky platforms. */
-    if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
+    if (arg == NULL || (((unsigned long)arg) & (ALIGNOF(*arg)-1)))
 	return POPT_ERROR_NULLARG;
 
     if (aLong != 0 && LF_ISSET(RANDOM)) {