Look... We aren't going to do your homework for you. And make and gcc pretty much tell you exactly what is wrong. So tackle each reported error until you have fixed your makefile to correctly build frprog, gqprog, and vwprog.

So, let's start with your first problem:
Just looking at the above output and your makefile (without even looking at your source files), tells us that fr.cc includes a function called main() and main() calls a function called f1(). And, f1() is not defined in fr.cc.

Do you have another source file that defines f1()? If so, you need to add the object file produced from that source as a dependency for frprog. If not, you need to write some code that does define it in fr.cc or add it to another file and update the dependencies in your makefile.

Moving on to your second problem... Do you have a header that isn't in the same directory as your source files (and isn't a standard header found in /usr/include), is there an option you can give to gcc to tell it to look for headers in another directory? If so, update the rules for making the object(s) that depends on that missing header to tell gcc where to find that header when building that(those) object file(s).

And, your third problem looks very similar to your first problem.

Note also that make is very picky about <tab> and <space> characters in rules in makefiles. You have shown us sequences of spaces in your sample makefile that are required to be tab characters. (We can assume that you copied the makefile out of a vi editing window instead of actually copying and pasting your makefile, but be aware that they are not interchangeable. (And, when you don't use CODE tags to show us your makefile, sequences of spaces and tabs are converted to a single space and leading spaces are discarded completely when we try to read your code. So, PLEASE use CODE tags when showing us sample input, sample output, and sample code segments. ICODE tags are fine for partial line snippets of sample code, but multi-line code segments need CODE tags; not ICODE tags.)