diff --git a/CHANGES b/CHANGES
index 74542aaf..8ca1b75e 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2,6 +2,7 @@ Changelog for hydra
 -------------------
 
 Release 9.1-dev
+* enable gcc 10 support for xhydra too :)
 * rdb: support for libfreerdp3 (thanks to animetauren)
 * new module: smb2 which also supports smb3 (uses libsmbclient-dev) (thanks to Karim Kanso for the module!)
 * oracle: added success condition (thanks to kazkansouh), compile on Cygwin (thanks to maaaaz)
diff --git a/hydra-gtk/Makefile.in b/hydra-gtk/Makefile.in
index bf5322e3..4085f85f 100644
--- a/hydra-gtk/Makefile.in
+++ b/hydra-gtk/Makefile.in
@@ -61,7 +61,7 @@ CC = @CC@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 PACKAGE = @PACKAGE@
-PACKAGE_CFLAGS = @PACKAGE_CFLAGS@
+PACKAGE_CFLAGS = @PACKAGE_CFLAGS@ -fcommon -Wl,--allow-multiple-definition
 PACKAGE_LIBS = @PACKAGE_LIBS@
 PKG_CONFIG = @PKG_CONFIG@
 VERSION = @VERSION@
diff --git a/hydra-gtk/configure b/hydra-gtk/configure
index 287741ed..653ba7df 100755
--- a/hydra-gtk/configure
+++ b/hydra-gtk/configure
@@ -2233,15 +2233,15 @@ if test "$ac_test_CFLAGS" = set; then
   CFLAGS=$ac_save_CFLAGS
 elif test $ac_cv_prog_cc_g = yes; then
   if test "$GCC" = yes; then
-    CFLAGS="-g -O2"
+    CFLAGS="-g -O2 -fcommon -Wl,--allow-multiple-definition"
   else
-    CFLAGS="-g"
+    CFLAGS="-g -fcommon -Wl,--allow-multiple-definition"
   fi
 else
   if test "$GCC" = yes; then
-    CFLAGS="-O2"
+    CFLAGS="-O2 -fcommon -Wl,--allow-multiple-definition"
   else
-    CFLAGS=
+    CFLAGS="-fcommon -Wl,--allow-multiple-definition"
   fi
 fi
 echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
diff --git a/hydra-gtk/src/Makefile.in b/hydra-gtk/src/Makefile.in
index a37ab9e5..d2ff022f 100644
--- a/hydra-gtk/src/Makefile.in
+++ b/hydra-gtk/src/Makefile.in
@@ -61,7 +61,7 @@ CC = @CC@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 PACKAGE = @PACKAGE@
-PACKAGE_CFLAGS = @PACKAGE_CFLAGS@
+PACKAGE_CFLAGS = @PACKAGE_CFLAGS@ -fcommon -Wl,--allow-multiple-definition
 PACKAGE_LIBS = @PACKAGE_LIBS@
 PKG_CONFIG = @PKG_CONFIG@
 VERSION = @VERSION@
diff --git a/hydra.c b/hydra.c
index 72e89193..49713176 100644
--- a/hydra.c
+++ b/hydra.c
@@ -225,7 +225,7 @@ char *SERVICES = "adam6500 asterisk afp cisco cisco-enable cvs firebird ftp[s] "
 #define RESTOREFILE "./hydra.restore"
 
 #define PROGRAM "Hydra"
-#define VERSION "v9.1-dev"
+#define VERSION "v9.1"
 #define AUTHOR "van Hauser/THC"
 #define EMAIL "<vh@thc.org>"
 #define AUTHOR2 "David Maciejak"