Hi
I am new to both RedHat Linux and Nessus.
Recently I tried to install nessus 2.0.3 on Red Hat Linux 8.0
Below is the error message I get when I run the make command in the nessus-core.

$ make
cd nessus && make
make[1]: Entering directory `/home/senghoe/nessus/nessus-core/nessus'
gcc -g -O2 `sh ./cflags` -c xstuff.c
xstuff.c:32:21: gtk/gtk.h: No such file or directory
In file included from xstuff.c:35:
xstuff.h:24: parse error before '*' token
xstuff.h:25: parse error before '*' token
xstuff.c: In function `init_display':
xstuff.c:41: warning: implicit declaration of function `gtk_init'
xstuff.c: At top level:
xstuff.c:45: parse error before '*' token
xstuff.c: In function `close_window':
xstuff.c:47: warning: implicit declaration of function `gtk_widget_hide'
xstuff.c:47: `w' undeclared (first use in this function)
xstuff.c:47: (Each undeclared identifier is reported only once
xstuff.c:47: for each function it appears in.)
xstuff.c:49: `FALSE' undeclared (first use in this function)
xstuff.c: At top level:
xstuff.c:51: parse error before '*' token
xstuff.c: In function `delete_event':
xstuff.c:53: `FALSE' undeclared (first use in this function)
xstuff.c: In function `close_display':
xstuff.c:57: warning: implicit declaration of function `gtk_main_quit'
make[1]: *** [xstuff.o] Error 1
make[1]: Leaving directory `/home/senghoe/nessus/nessus-core/nessus'
make: *** [client] Error 2

I already installed gtk+1.2.10 and gtk+-devel-1.2.10 but still no luck. Anybody can help??

Thanks a lot.

I got exactly the same problem. I also installed gtk+1.2.10 and gtk+-devel-1.2.25 . I met this problem when tried to "make" in nessus-core. I am running Redhat Linux 9.0 . How to fix it ?
Thanks in advance for helping me.

Nobody wants to help me ?

I had the same problem. When the configure script was run, something was messed up. In order to clear it and rerun, you will need to goto the nessus-core folder and run

make distclean
./configure
make
make install

Hope it works for you.