--- configure.orig	2015-12-16 20:50:32 UTC
+++ configure
@@ -276,7 +276,7 @@ DSOSUF=".so"
 LDFLAGS_SHARED="-shared"
 modules="no"
 prefix="/usr/local"
-mandir="\${prefix}/share/man"
+mandir="\${prefix}/man"
 datadir="\${prefix}/share"
 qemu_docdir="\${prefix}/share/doc/qemu"
 bindir="\${prefix}/bin"
@@ -2241,7 +2241,7 @@ if test "$gtk" != "no"; then
             gtk_cflags="$gtk_cflags $x11_cflags"
             gtk_libs="$gtk_libs $x11_libs"
         fi
-        libs_softmmu="$gtk_libs $libs_softmmu"
+        libs_softmmu="$gtk_libs -lintl $libs_softmmu"
         gtk="yes"
     elif test "$gtk" = "yes"; then
         feature_not_found "gtk" "Install gtk2 or gtk3 devel"
@@ -3864,14 +3864,7 @@ fi
 
 # Check if tools are available to build documentation.
 if test "$docs" != "no" ; then
-  if has makeinfo && has pod2man; then
     docs=yes
-  else
-    if test "$docs" = "yes" ; then
-      feature_not_found "docs" "Install texinfo and Perl/perl-podlators"
-    fi
-    docs=no
-  fi
 fi
 
 # Search for bswap_32 function
@@ -3999,6 +3992,17 @@ fi
 
 # check for libusb
 if test "$libusb" != "no" ; then
+    cat > $TMPC << EOF
+#include <libusb.h>
+
+int main(void) { return libusb_get_port_path(NULL, NULL, NULL, 0); }
+EOF
+    if compile_prog "-Werror" "-lusb -pthread" ; then
+        libusb="yes"
+        libusb_cflags=""
+        libusb_libs=-lusb
+        libs_softmmu="$libs_softmmu $libusb_libs"
+    else
     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
         libusb="yes"
         libusb_cflags=$($pkg_config --cflags libusb-1.0)
@@ -4011,6 +4015,7 @@ if test "$libusb" != "no" ; then
         fi
         libusb="no"
     fi
+    fi
 fi
 
 # check for usbredirparser for usb network redirection support