Updated to gtk2.0

Makefile

-
 CFLAGS = -O9 -g -Wall
-CFLAGSX = -O9 -g -Wall `gtk-config --cflags`
+CFLAGSX = -O9 -g -Wall `pkg-config --cflags gtk+-2.0`
 
 LDFLAGS = -lm
-LDFLAGSX = `gtk-config --libs` -lm
+LDFLAGSX = `pkg-config --libs gtk+-2.0` -lm
 
 all:	rscw rscwx noisycw rs12tlmdec
 
 rscw:	rscw.c
-	$(CC) $(CFLAGS) rscw.c -o rscw -lfftw3 $(LDFLAGS)
+	gcc $(CFLAGS) rscw.c -o rscw -lfftw3 $(LDFLAGS)
 
 rscwx:	rscwx.c
-	$(CC) $(CFLAGSX) rscwx.c -o rscwx $(LDFLAGSX)
+	gcc $(CFLAGSX) rscwx.c -o rscwx $(LDFLAGSX)
 
 noisycw:	noisycw.c
 	gcc -O9 noisycw.c -o noisycw -g -lm

README

+#RSCW
+
+RSCW is a Linux/Unix program for decoding morse signals using the computer's sound card. It has been written/optimized for digging weak signals out of the noise. However, it can only handle signals with perfect timing, which in practice means machine-sent signals. Furthermore, the user must specify the speed (words per minute); the program cannot (yet) determine this automatically from the received signal. As a final inconvenience, RSCW introduces quite a bit of delay: the decoding lags the reception by about 2 seconds. As a consequence, RSCW is not a general-purpose morse decoder that can replace a skilled operator in say a contest. However, it is quite useful for e.g. the automatic reception of telemetry from amateur-radio satellites.
+
 See
   http://www.cs.utwente.nl/~ptdeboer/ham/rscw/  
 for more documentation.
 
+
+Notes from Alaskalinuxuser:
+As originally written under the GPL 2.0 by pa3fwm
+http://www.pa3fwm.nl/software/rscw/
+Which requires GTK version 1.2
+
+#20201003
+I have updated this to build on Ubuntu 16.04 using GTK version 2.0, editing the README file, rscwx.c file, and the Makefile. I also added the license file, maintaining the original license for clarification.

rscwx.c

@@ -633,7 +633,9 @@ int main(int argc,char **argv)
    gtk_signal_connect(GTK_OBJECT(w), "clicked", GTK_SIGNAL_FUNC(cmd_zoomout), (gpointer)NULL);
    gtk_widget_add_accelerator(w, "clicked", acc, GDK_X, 0,0);
 
-   gtk_accel_group_attach(acc,GTK_OBJECT(mainwin));
+   /*gtk_accel_group_attach(acc,GTK_OBJECT(mainwin));*/
+   // WJH - Only required for gtk1.2, works without this in gtk2.0
+   // and will cause errors in gtk2.0 if left in.
 
    gdraw=gtk_drawing_area_new();
    gtk_drawing_area_size(GTK_DRAWING_AREA(gdraw),xsize,ysize);
@@ -680,8 +682,10 @@ int main(int argc,char **argv)
    gtk_signal_connect(GTK_OBJECT(w), "clicked", GTK_SIGNAL_FUNC(cmd_center_f), (gpointer)NULL);
    gtk_widget_add_accelerator(w, "clicked", acc, GDK_C, 0,0);
 
-   gtk_accel_group_attach(acc,GTK_OBJECT(mainwinf));
-
+   /*gtk_accel_group_attach(acc,GTK_OBJECT(mainwinf));*/
+   // WJH - Only required for gtk1.2, works without this in gtk2.0
+   // and will cause errors in gtk2.0 if left in.
+   
    gdrawf=gtk_drawing_area_new();
    gtk_drawing_area_size(GTK_DRAWING_AREA(gdrawf),xsizef,ysizef);
    gtk_signal_connect(GTK_OBJECT(gdrawf), "configure_event", GTK_SIGNAL_FUNC(configure_event_f), NULL);