BRL-CAD installation.

[zippo]

I've been trying, without success, to install BRL-CAD on my Ubuntu 7.04 Feisty Fawn distribution.
I am installing the 7.10.0 release of BRL-CAD from source and everything's fine until I run ./configure (which isn't very far at all).
I have all the neccessary releases of gcc, libtool, make, automake, autoconf, and have double-checked the INSTALL and README.Linux files.

Please helop, I'm a newb who's dearly in love with Linux so far, but I've hit the wall on this one.

Here's everything I've run since extraction to my failed attempt at ./configure.




.........
zippo@zippo-desktop:~$ cd ~/ext3/CAD/brlcad-7.10.0zippo@zippo-desktop:~/ext3/CAD/brlcad-7.10.0$ sh autogen.sh
Preparing the BRL-CAD build system...please wait

Found GNU Autoconf version 2.61
Found GNU Automake version 1.9.6
Found GNU Libtool version 1.5.22

Automatically preparing build ... done

The BRL-CAD build system is now prepared. To build here, run:
./configure
make
zippo@zippo-desktop:~/ext3/CAD/brlcad-7.10.0$ sh ./configure --enable-optimized --prefix=/home/zippo/ext3/BRL-CAD/
./configure: ./sh/shtool: /bin/sh: bad interpreter: Permission denied
************************************************** ********
*** Configuring BRL-CAD Release 7.10.0, Build 20070601 ***
************************************************** ********
./configure: ./sh/shtool: /bin/sh: bad interpreter: Permission denied
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking target system type... i686-pc-linux-gnu
checking where BRL-CAD is to be installed... /home/zippo/ext3/BRL-CAD/
checking where BRL-CAD resources are to be installed... ${prefix}/share
checking whether dependency tracking should be enabled... no
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether a configure cache exists... not found
configure: *** Automatically caching to config.cache.linux-gnu.zippo-desktop ***
./configure: ./sh/shtool: /bin/sh: bad interpreter: Permission denied
checking ... a r g u m e n t s ... (1 of 9)
./configure: ./sh/shtool: /bin/sh: bad interpreter: Permission denied
checking for X11 in /usr/X11R6... found
checking for X11 in /opt/X11R6... not found
checking for X11 in /opt/X11... not found
checking for X11 in /usr/X11... not found
checking for style of include used by make... GNU
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... configure: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details.
zippo@zippo-desktop:~/ext3/CAD/brlcad-7.10.0$
.........

[macdude425]

Make sure cpp is installed.

[zippo]

Yeah, I've got cpp 4.1.2. Thanks, though.