--- configure.orig	2021-06-21 22:25:40 UTC
+++ configure
@@ -1602,7 +1602,7 @@ if test "$mingw32" = "yes" ; then
 else
     bindir="${bindir:-$prefix/bin}"
 fi
-mandir="${mandir:-$prefix/share/man}"
+mandir="${mandir:-$prefix/man}"
 datadir="${datadir:-$prefix/share}"
 docdir="${docdir:-$prefix/share/doc}"
 sysconfdir="${sysconfdir:-$prefix/etc}"
@@ -2989,6 +2989,14 @@ EOF
 fi
 
 ##########################################
+# getifaddrs (for tests/test-io-channel-socket )
+
+have_ifaddrs_h=yes
+if ! check_include "ifaddrs.h" ; then
+  have_ifaddrs_h=no
+fi
+
+##########################################
 # VTE probe
 
 if test "$vte" != "no"; then
@@ -4191,7 +4199,7 @@ fi
 
 # check for libusb
 if test "$libusb" != "no" ; then
-    if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
+    if $pkg_config libusb-1.0; then
         libusb="yes"
         libusb_cflags=$($pkg_config --cflags libusb-1.0)
         libusb_libs=$($pkg_config --libs libusb-1.0)
@@ -5729,6 +5737,9 @@ fi
 if test "$have_fsxattr" = "yes" ; then
     echo "HAVE_FSXATTR=y" >> $config_host_mak
 fi
+if test "$have_ifaddrs_h" = "yes" ; then
+    echo "HAVE_IFADDRS_H=y" >> $config_host_mak
+fi
 if test "$have_copy_file_range" = "yes" ; then
     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
 fi