diff --git a/package/libmodbus/001-GfA-echo-rtu.patch b/package/libmodbus/001-GfA-echo-rtu.patch
deleted file mode 100644
index 386172f..0000000
--- a/package/libmodbus/001-GfA-echo-rtu.patch
+++ /dev/null
@@ -1,105 +0,0 @@
-diff -Naur a/src/modbus-rtu.c b/src/modbus-rtu.c
---- a/src/modbus-rtu.c	2017-10-11 23:07:11.623017506 +0200
-+++ b/src/modbus-rtu.c	2017-10-11 23:07:20.495035402 +0200
-@@ -257,6 +257,27 @@
- }
- #endif
- 
-+
-+ssize_t _modbus_rtu_write_n_read(modbus_t *ctx, const uint8_t *req, int req_length) {
-+ ssize_t w, r, i;
-+ uint8_t rb[req_length];
-+
-+ // Transmit
-+ w = write(ctx->s, req, req_length);
-+
-+ // Read back written bytes if hw has echo
-+ r = 0;
-+ while (r < w)
-+  r += read(ctx->s, rb + r, w - r);
-+ if (ctx->debug) {
-+  for (i = 0; i < r; ++i)
-+  fprintf(stderr, "|%02X|", rb[i]);
-+  fprintf(stderr, "\n");
-+ }
-+
-+ return w;
-+}
-+
- ssize_t _modbus_rtu_send(modbus_t *ctx, const uint8_t *req, int req_length)
- {
- #if defined(_WIN32)
-@@ -264,7 +285,14 @@
-     DWORD n_bytes = 0;
-     return (WriteFile(ctx_rtu->w_ser.fd, req, req_length, &n_bytes, NULL)) ? n_bytes : -1;
- #else
--    return write(ctx->s, req, req_length);
-+    modbus_rtu_t *ctx_rtu = ctx->backend_data;
-+    ssize_t w;
-+    
-+    if(!ctx_rtu->echohw)    
-+      w = write(ctx->s, req, req_length);
-+     else
-+      w = _modbus_rtu_write_n_read(ctx, req, req_length);
-+    return w;
- #endif
- }
- 
-@@ -772,6 +800,30 @@
-     }
- }
- 
-+
-+int modbus_rtu_set_echohw_mode(modbus_t* ctx, uint8_t mode) {
-+ if (ctx->backend->backend_type == _MODBUS_BACKEND_TYPE_RTU) {
-+ modbus_rtu_t* rtu = (modbus_rtu_t*) ctx->backend_data;
-+ rtu->echohw= mode;
-+ return 0;
-+ }
-+ /* Wrong backend and invalid mode specified */
-+ errno = EINVAL;
-+ return -1;
-+
-+}
-+
-+int modbus_rtu_get_echohw_mode(modbus_t* ctx) {
-+ if (ctx->backend->backend_type == _MODBUS_BACKEND_TYPE_RTU) {
-+ modbus_rtu_t* rtu = (modbus_rtu_t*) ctx->backend_data;
-+ return rtu->echohw;
-+ }
-+ /* Wrong backend and invalid mode specified */
-+ errno = EINVAL;
-+ return -1;
-+
-+}
-+
- void _modbus_rtu_close(modbus_t *ctx)
- {
-     /* Closes the file descriptor in RTU mode */
-diff -Naur a/src/modbus-rtu.h b/src/modbus-rtu.h
---- a/src/modbus-rtu.h	2017-10-11 23:07:11.623017506 +0200
-+++ b/src/modbus-rtu.h	2017-10-11 23:07:20.495035402 +0200
-@@ -37,6 +37,12 @@
- int modbus_rtu_set_serial_mode(modbus_t *ctx, int mode);
- int modbus_rtu_get_serial_mode(modbus_t *ctx);
- 
-+#define MODBUS_RTU_HAS_ECHOHW 1
-+#define MODBUS_RTU_NO_ECHOHW 0
-+
-+int modbus_rtu_set_echohw_mode(modbus_t *ctx, uint8_t mode);
-+int modbus_rtu_get_echohw_mode(modbus_t *ctx);
-+
- MODBUS_END_DECLS
- 
- #endif /* _MODBUS_RTU_H_ */
-diff -Naur a/src/modbus-rtu-private.h b/src/modbus-rtu-private.h
---- a/src/modbus-rtu-private.h	2017-10-11 23:07:11.623017506 +0200
-+++ b/src/modbus-rtu-private.h	2017-10-11 23:07:20.495035402 +0200
-@@ -81,6 +81,7 @@
- #if HAVE_DECL_TIOCSRS485
-     int serial_mode;
- #endif
-+    uint8_t echohw;
- } modbus_rtu_t;
- 
- #endif /* _MODBUS_RTU_PRIVATE_H_ */
diff --git a/package/libmodbus/002-GfA-fflush-for-debug.patch b/package/libmodbus/002-GfA-fflush-for-debug.patch
deleted file mode 100644
index 93eaa9a..0000000
--- a/package/libmodbus/002-GfA-fflush-for-debug.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-diff '--exclude=.libs*' -Naurp libmodbus-3.0.6/src/modbus.c b/src/modbus.c
---- libmodbus-3.0.6/src/modbus.c	2014-04-02 23:34:00.000000000 +0200
-+++ b/src/modbus.c	2018-06-15 08:36:32.657047324 +0200
-@@ -170,6 +170,7 @@ static int send_msg(modbus_t *ctx, uint8
-         for (i = 0; i < msg_length; i++)
-             printf("[%.2X]", msg[i]);
-         printf("\n");
-+        fflush(stdout);
-     }
- 
-     /* In recovery mode, the write command will be issued until to be
-@@ -407,6 +408,7 @@ static int receive_msg(modbus_t *ctx, ui
-             int i;
-             for (i=0; i < rc; i++)
-                 printf("<%.2X>", msg[msg_length + i]);
-+            fflush(stdout);
-         }
- 
-         /* Sums bytes received */
-diff '--exclude=.libs*' -Naurp libmodbus-3.0.6/src/modbus-rtu.c b/src/modbus-rtu.c
---- libmodbus-3.0.6/src/modbus-rtu.c	2018-06-16 17:44:19.011371930 +0200
-+++ b/src/modbus-rtu.c	2018-06-15 08:34:34.544888427 +0200
-@@ -260,7 +260,7 @@ static int win32_ser_read(struct win32_s
- 
- ssize_t _modbus_rtu_write_n_read(modbus_t *ctx, const uint8_t *req, int req_length) {
-  ssize_t w, r, i;
-- uint8_t rb[req_length];
-+ uint8_t rb[512];
- 
-  // Transmit
-  w = write(ctx->s, req, req_length);
-@@ -273,6 +273,7 @@ ssize_t _modbus_rtu_write_n_read(modbus_
-   for (i = 0; i < r; ++i)
-   fprintf(stderr, "|%02X|", rb[i]);
-   fprintf(stderr, "\n");
-+  fflush(stderr);
-  }
- 
-  return w;
-@@ -325,6 +326,7 @@ int _modbus_rtu_check_integrity(modbus_t
-         if (ctx->debug) {
-             fprintf(stderr, "ERROR CRC received %0X != CRC calculated %0X\n",
-                     crc_received, crc_calculated);
-+            fflush(stderr);                    
-         }
-         if (ctx->error_recovery & MODBUS_ERROR_RECOVERY_PROTOCOL) {
-             _modbus_rtu_flush(ctx);
diff --git a/package/libmodbus/003-GfA-empty-input-queue-on-CRC-error.patch b/package/libmodbus/003-GfA-empty-input-queue-on-CRC-error.patch
deleted file mode 100644
index 79a7ae3..0000000
--- a/package/libmodbus/003-GfA-empty-input-queue-on-CRC-error.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-diff '--exclude=.libs*' '--exclude=*.la' '--exclude=*.lo' '--exclude=Makefile*' -Naurp libmodbus-3.0.6/src/modbus-rtu.c b/src/modbus-rtu.c
---- libmodbus-3.0.6/src/modbus-rtu.c	2018-06-22 10:34:55.987233891 +0200
-+++ b/src/modbus-rtu.c	2018-06-18 19:47:12.682614777 +0200
-@@ -323,6 +323,35 @@ int _modbus_rtu_check_integrity(modbus_t
-     if (crc_calculated == crc_received) {
-         return msg_length;
-     } else {
-+        modbus_rtu_t *ctx_rtu = ctx->backend_data;    
-+        
-+        if(ctx_rtu->echohw) {/* on active echomode empty receiver on crc error */
-+            int rc;
-+            fd_set rfds;
-+            struct timeval tv;    
-+        
-+            /* Add a file descriptor to the set */
-+            FD_ZERO(&rfds);
-+            FD_SET(ctx->s, &rfds);
-+            
-+            if (ctx->debug) {
-+                fprintf(stderr, "ERROR CRC received on ECHOHW empty input tv.tv_sec=%d tv.tv_usec=%d\n",
-+                        (int)ctx->response_timeout.tv_sec,
-+                        (int)ctx->response_timeout.tv_usec);
-+                fflush(stderr);                    
-+            }
-+        
-+            do {
-+               unsigned char cc[256]; /* dummy buffer für cleaning input */
-+           
-+               tv.tv_sec = ctx->response_timeout.tv_sec;
-+               tv.tv_usec = ctx->response_timeout.tv_usec;
-+
-+               rc = ctx->backend->select(ctx, &rfds, &tv, sizeof(cc));
-+               if(rc > 0) ctx->backend->recv(ctx, msg + msg_length, rc);           
-+               } while(rc > 0); /* read until transfer empty */
-+            }
-+               
-         if (ctx->debug) {
-             fprintf(stderr, "ERROR CRC received %0X != CRC calculated %0X\n",
-                     crc_received, crc_calculated);
diff --git a/package/libmodbus/libmodbus.mk b/package/libmodbus/libmodbus.mk
index 1f8c730..62909e4 100644
--- a/package/libmodbus/libmodbus.mk
+++ b/package/libmodbus/libmodbus.mk
@@ -4,10 +4,12 @@
 #
 ################################################################################
 
-LIBMODBUS_VERSION = 3.0.6
-LIBMODBUS_SITE = http://libmodbus.org/releases
+LIBMODBUS_VERSION = GfA
+LIBMODBUS_SITE = https://gogs.reru.org/GfA/libmodbus.git
+LIBMODBUS_SITE_METHOD = git
 LIBMODBUS_LICENSE = LGPLv2.1+
 LIBMODBUS_LICENSE_FILES = COPYING.LESSER
+LIBMODBUS_AUTORECONF = YES
 LIBMODBUS_INSTALL_STAGING = YES
 
 $(eval $(autotools-package))