--- configure.orig	2026-06-09 20:26:02 UTC
+++ configure
@@ -786,6 +786,7 @@ HDF5_LIBS
 HDF5_FFLAGS
 HDF5_FC
 HDF5_LIBS
+HDF5_HL_LIBS
 HDF5_LDFLAGS
 HDF5_CPPFLAGS
 HDF5_CFLAGS
@@ -12988,7 +12989,7 @@ printf %s "checking whether the $compiler linker ($LD)
   hardcode_minus_L=no
   hardcode_shlibpath_var=unsupported
   inherit_rpath=no
-  link_all_deplibs=unknown
+  link_all_deplibs=no
   module_cmds=
   module_expsym_cmds=
   old_archive_from_new_cmds=
@@ -13286,7 +13287,7 @@ _LT_EOF
 
     *-mlibc)
 	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
-	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	archive_expsym_cmds='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$lib-ver -o $lib'
       ;;
 
     netbsd* | netbsdelf*-gnu)
@@ -13295,7 +13296,7 @@ _LT_EOF
 	wlarc=
       else
 	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
-	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	archive_expsym_cmds='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$lib-ver -o $lib'
       fi
       ;;
 
@@ -13314,7 +13315,7 @@ _LT_EOF
 _LT_EOF
       elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
 	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
-	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	archive_expsym_cmds='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$lib-ver -o $lib'
       else
 	ld_shlibs=no
       fi
@@ -13343,7 +13344,7 @@ _LT_EOF
 	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
 	    hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
 	    archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
-	    archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	    archive_expsym_cmds='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$lib-ver -o $lib'
 	  else
 	    ld_shlibs=no
 	  fi
@@ -13361,7 +13362,7 @@ _LT_EOF
     *)
       if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
 	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
-	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	archive_expsym_cmds='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$lib-ver -o $lib'
       else
 	ld_shlibs=no
       fi
@@ -14026,7 +14027,7 @@ printf "%s\n" "$lt_cv_irix_exported_symbol" >&6; }
 	hardcode_direct_absolute=yes
 	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
 	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
-	  archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+	  archive_expsym_cmds='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-version-script,$lib-ver'
 	  hardcode_libdir_flag_spec='$wl-rpath,$libdir'
 	  export_dynamic_flag_spec='$wl-E'
 	else
@@ -14895,7 +14896,7 @@ freebsd* | dragonfly* | midnightbsd*)
   version_type=freebsd-$objformat
   case $version_type in
     freebsd-elf*)
-      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      library_names_spec='$libname$release$shared_ext$versuffix  $libname$release$shared_ext$major	 $libname$shared_ext'			 soname_spec='$libname$release$shared_ext$major'
       soname_spec='$libname$release$shared_ext$major'
       need_version=no
       need_lib_prefix=no
@@ -16653,7 +16654,7 @@ else
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
 else
-  if $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  if $STRIP -V 2>&1 | $GREP "strip" >/dev/null; then
     old_striplib="$STRIP --strip-debug"
     striplib="$STRIP --strip-unneeded"
     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
@@ -16667,7 +16668,7 @@ printf "%s\n" "yes" >&6; }
       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 printf "%s\n" "yes" >&6; }
       ;;
-    freebsd*)
+dragonfly* |     freebsd*)
       if $STRIP -V 2>&1 | $GREP "elftoolchain" >/dev/null; then
         old_striplib="$STRIP --strip-debug"
         striplib="$STRIP --strip-unneeded"
@@ -16913,7 +16914,7 @@ module_expsym_cmds_CXX=
 inherit_rpath_CXX=no
 module_cmds_CXX=
 module_expsym_cmds_CXX=
-link_all_deplibs_CXX=unknown
+link_all_deplibs_CXX=no
 old_archive_cmds_CXX=$old_archive_cmds
 reload_flag_CXX=$reload_flag
 reload_cmds_CXX=$reload_cmds
@@ -17130,7 +17131,7 @@ with_gnu_ld=$lt_cv_prog_gnu_ld
       # archiving commands below assume that GNU ld is being used.
       if test yes = "$with_gnu_ld"; then
         archive_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
-        archive_expsym_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+        archive_expsym_cmds_CXX='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$lib-ver -o $lib'
 
         hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
         export_dynamic_flag_spec_CXX='$wl--export-dynamic'
@@ -17829,7 +17830,7 @@ fi
 	    case `$CC -V 2>&1` in
 	      *"Version 7."*)
 	        archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
-		archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		archive_expsym_cmds_CXX='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$lib-ver -o $lib'
 		;;
 	      *)  # Version 8.0 or newer
 	        tmp_idyn=
@@ -17837,7 +17838,7 @@ fi
 		  ia64*) tmp_idyn=' -i_dynamic';;
 		esac
 	        archive_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
-		archive_expsym_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		archive_expsym_cmds_CXX='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$lib-ver -o $lib'
 		;;
 	    esac
 	    archive_cmds_need_lc_CXX=no
@@ -17869,7 +17870,7 @@ fi
 	      ;;
 	    *) # Version 6 and above use weak symbols
 	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
-	      archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	      archive_expsym_cmds_CXX='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$lib-ver -o $lib'
 	      ;;
 	    esac
 
@@ -17880,7 +17881,7 @@ fi
 	  cxx*)
 	    # Compaq C++
 	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
-	    archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname  -o $lib $wl-retain-symbols-file $wl$export_symbols'
+	    archive_expsym_cmds_CXX='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname  -o $lib $wl-version-script $wl$lib-ver'
 
 	    runpath_var=LD_RUN_PATH
 	    hardcode_libdir_flag_spec_CXX='-rpath $libdir'
@@ -17914,7 +17915,7 @@ fi
 	      # Sun C++ 5.9
 	      no_undefined_flag_CXX=' -zdefs'
 	      archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
-	      archive_expsym_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
+	      archive_expsym_cmds_CXX='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-version-script $wl$lib-ver'
 	      hardcode_libdir_flag_spec_CXX='-R$libdir'
 	      whole_archive_flag_spec_CXX='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
 	      compiler_needs_object_CXX=yes
@@ -17986,7 +17987,7 @@ fi
 	  archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
 	  hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
 	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
-	    archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
+	    archive_expsym_cmds_CXX='echo "{ global:" > $lib-ver~		 sed -e "s|$|;|" < $export_symbols >> $lib-ver~	 echo "local: *; };" >> $lib-ver~$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-version-script,$lib-ver -o $lib'
 	    export_dynamic_flag_spec_CXX='$wl-E'
 	    whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
 	  fi
@@ -19545,7 +19546,7 @@ freebsd* | dragonfly* | midnightbsd*)
   version_type=freebsd-$objformat
   case $version_type in
     freebsd-elf*)
-      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      library_names_spec='$libname$release$shared_ext$versuffix  $libname$release$shared_ext$major	 $libname$shared_ext'			 soname_spec='$libname$release$shared_ext$major'
       soname_spec='$libname$release$shared_ext$major'
       need_version=no
       need_lib_prefix=no
@@ -24484,7 +24485,7 @@ case $host_os in
 
 case $host_os in
 
-        freebsd*)
+dragonfly* |         freebsd*)
 
         # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
         # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
@@ -25351,6 +25352,7 @@ HDF5_LIBS=""
 HDF5_CPPFLAGS=""
 HDF5_LDFLAGS=""
 HDF5_LIBS=""
+HDF5_HL_LIBS=""
 HDF5_FC=""
 HDF5_FFLAGS=""
 HDF5_FLIBS=""
@@ -25740,7 +25742,59 @@ printf "%s\n" "#define H5_USE_18_API 1" >>confdefs.h
   fi
 
 
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for H5PTopen in -lhdf5_hl" >&5
+printf %s "checking for H5PTopen in -lhdf5_hl... " >&6; }
+if test ${ac_cv_lib_hdf5_hl_H5PTopen+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e)
+  ac_check_lib_save_LIBS=$LIBS
+  ac_check_lib_save_LDFLAGS=$LDFLAGS
+  # Ensure the test link sees both -L/-Wl flags and libs provided by AX_LIB_HDF5()
+  LDFLAGS="$LDFLAGS $HDF5_LDFLAGS"
+  LIBS="-lhdf5_hl $HDF5_LIBS $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
+/* Override any GCC internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char H5PTopen (void);
+int
+main (void)
+{
+return H5PTopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_hdf5_hl_H5PTopen=yes
+else case e in #(
+  e) ac_cv_lib_hdf5_hl_H5PTopen=no ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  LIBS=$ac_check_lib_save_LIBS
+  LDFLAGS=$ac_check_lib_save_LDFLAGS
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_hdf5_hl_H5PTopen" >&5
+printf "%s\n" "$ac_cv_lib_hdf5_hl_H5PTopen" >&6; }
+if test "x$ac_cv_lib_hdf5_hl_H5PTopen" = xyes
+then :
+  HDF5_HL_LIBS="-lhdf5_hl"
+else case e in #(
+  e) HDF5_HL_LIBS="" ;;
+esac
+fi
+
+
 #
 # Handle user hints
 #
@@ -27938,6 +27992,133 @@ fi
 fi
 
   fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct sockaddr has member sa_len" >&5
+printf %s "checking whether struct sockaddr has member sa_len... " >&6; }
+if test ${ac_cv_member_struct_sockaddr_sa_len+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e)
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <sys/socket.h>
+int main(void) { (void) ((struct sockaddr *)0)->sa_len; return 0; }
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_member_struct_sockaddr_sa_len=yes
+else case e in #(
+  e) ac_cv_member_struct_sockaddr_sa_len=no ;;
+esac
+fi
+rm -f conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_member_struct_sockaddr_sa_len" >&5
+printf "%s\n" "$ac_cv_member_struct_sockaddr_sa_len" >&6; }
+if test "x$ac_cv_member_struct_sockaddr_sa_len" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRUCT_SOCKADDR_SA_LEN 1" >>confdefs.h
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct sockaddr_in has member sin_len" >&5
+printf %s "checking whether struct sockaddr_in has member sin_len... " >&6; }
+if test ${ac_cv_member_struct_sockaddr_in_sin_len+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e)
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+int main(void) { (void) ((struct sockaddr_in *)0)->sin_len; return 0; }
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_member_struct_sockaddr_in_sin_len=yes
+else case e in #(
+  e) ac_cv_member_struct_sockaddr_in_sin_len=no ;;
+esac
+fi
+rm -f conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_member_struct_sockaddr_in_sin_len" >&5
+printf "%s\n" "$ac_cv_member_struct_sockaddr_in_sin_len" >&6; }
+if test "x$ac_cv_member_struct_sockaddr_in_sin_len" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRUCT_SOCKADDR_IN_SIN_LEN 1" >>confdefs.h
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct sockaddr_in6 has member sin6_len" >&5
+printf %s "checking whether struct sockaddr_in6 has member sin6_len... " >&6; }
+if test ${ac_cv_member_struct_sockaddr_in6_sin6_len+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e)
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+int main(void) { (void) ((struct sockaddr_in6 *)0)->sin6_len; return 0; }
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_member_struct_sockaddr_in6_sin6_len=yes
+else case e in #(
+  e) ac_cv_member_struct_sockaddr_in6_sin6_len=no ;;
+esac
+fi
+rm -f conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_member_struct_sockaddr_in6_sin6_len" >&5
+printf "%s\n" "$ac_cv_member_struct_sockaddr_in6_sin6_len" >&6; }
+if test "x$ac_cv_member_struct_sockaddr_in6_sin6_len" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN 1" >>confdefs.h
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct sockaddr_un has member sun_len" >&5
+printf %s "checking whether struct sockaddr_un has member sun_len... " >&6; }
+if test ${ac_cv_member_struct_sockaddr_un_sun_len+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e)
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+int main(void) { (void) ((struct sockaddr_un *)0)->sun_len; return 0; }
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_member_struct_sockaddr_un_sun_len=yes
+else case e in #(
+  e) ac_cv_member_struct_sockaddr_un_sun_len=no ;;
+esac
+fi
+rm -f conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_member_struct_sockaddr_un_sun_len" >&5
+printf "%s\n" "$ac_cv_member_struct_sockaddr_un_sun_len" >&6; }
+if test "x$ac_cv_member_struct_sockaddr_un_sun_len" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRUCT_SOCKADDR_UN_SUN_LEN 1" >>confdefs.h
+fi
 
 
 #
--- configure.orig	2026-06-10 12:48:33 UTC
+++ configure
@@ -27589,8 +27589,8 @@ else case e in #(
 	    if test "$ac_with_rpath" = "yes"; then
 	      S2N_LDFLAGS="-Wl,-rpath -Wl,$d/$bit "
 	    fi
-	    S2N_LDFLAGS+="-L$d/$bit"
+	    S2N_LDFLAGS="${S2N_LDFLAGS} -L$d/$bit"
             LIBS="$S2N_LDFLAGS $S2N_LIBS"
             CPPFLAGS="$S2N_CPPFLAGS $CPPFLAGS"
 	    if test "$cross_compiling" = yes
 then :