Would anyone be able to help me out? Thanks in advance. It looks like no C++ compiler is found but I do:

[root@caterpillar mangler-1.2.2]# yum list installed | egrep '(libstdc|gcc)'
gcc.x86_64                       4.6.1-9.fc15       @updates                    
libgcc.i686                      4.6.1-9.fc15       @updates                    
libgcc.x86_64                    4.6.1-9.fc15       @updates                    
libstdc++.i686                   4.6.1-9.fc15       @updates                    
libstdc++.x86_64                 4.6.1-9.fc15       @updates                    
[root@caterpillar mangler-1.2.2]#

////////////////////////////some config.log entries//////////////////////

[root@caterpillar mangler-1.2.2]# cat config.log
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by mangler configure 1.2.1, which was
generated by GNU Autoconf 2.65.  Invocation command line was

  $ ./configure

## ——— ##
## Platform. ##
## ——— ##

hostname = caterpillar
uname -m = x86_64
uname -r = 2.6.40.4-5.fc15.x86_64
uname -s = Linux
uname -v = #1 SMP Tue Aug 30 14:38:32 UTC 2011

/usr/bin/uname -p = unknown
/bin/uname -X     = unknown

/bin/arch              = x86_64
/usr/bin/arch -k       = unknown
/usr/convex/getsysinfo = unknown
/usr/bin/hostinfo      = unknown
/bin/machine           = unknown
/usr/bin/oslevel       = unknown
/bin/universe          = unknown

PATH: /usr/local/sbin
PATH: /usr/local/bin
PATH: /sbin
PATH: /bin
PATH: /usr/sbin
PATH: /usr/bin
PATH: /root/bin

## ———– ##
## Core tests. ##
## ———– ##

configure:2769: checking for a BSD-compatible install
configure:2837: result: /usr/bin/install -c
configure:2848: checking whether build environment is sane
configure:2898: result: yes
configure:3039: checking for a thread-safe mkdir -p
configure:3078: result: /bin/mkdir -p
configure:3091: checking for gawk
configure:3107: found /bin/gawk
configure:3118: result: gawk
configure:3129: checking whether make sets $(MAKE)
configure:3151: result: yes
configure:3232: checking whether to enable maintainer-specific portions of Makefiles
configure:3241: result: no
configure:3319: checking for g++
configure:3349: result: no
configure:3319: checking for c++
configure:3349: result: no
configure:3319: checking for gpp
configure:3349: result: no
configure:3319: checking for aCC
configure:3349: result: no
configure:3319: checking for CC
configure:3349: result: no
configure:3319: checking for cxx
configure:3349: result: no
configure:3319: checking for cc++
configure:3349: result: no
configure:3319: checking for cl.exe
configure:3349: result: no
configure:3319: checking for FCC
configure:3349: result: no
configure:3319: checking for KCC
configure:3349: result: no
configure:3319: checking for RCC
configure:3349: result: no
configure:3319: checking for xlC_r
configure:3349: result: no
configure:3319: checking for xlC
configure:3349: result: no
configure:3373: checking for C++ compiler version
configure:3382: g++ –version >&5
./configure: line 3384: g++: command not found
configure:3393: $? = 127
configure:3382: g++ -v >&5
./configure: line 3384: g++: command not found
configure:3393: $? = 127
configure:3382: g++ -V >&5
./configure: line 3384: g++: command not found
configure:3393: $? = 127
configure:3382: g++ -qversion >&5
./configure: line 3384: g++: command not found
configure:3393: $? = 127
configure:3413: checking whether the C++ compiler works
configure:3435: g++    conftest.cpp  >&5
./configure: line 3437: g++: command not found
configure:3439: $? = 127
configure:3477: result: no
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "mangler"
| #define PACKAGE_TARNAME "mangler"
| #define PACKAGE_VERSION "1.2.1"
| #define PACKAGE_STRING "mangler 1.2.1"
| #define PACKAGE_BUGREPORT "eric@ypass.net"
| #define PACKAGE_URL ""
| #define PACKAGE "mangler"
| #define VERSION "1.2.1"
| /* end confdefs.h.  */
|
| int
| main ()
| {
|
|   ;
|   return 0;
| }
configure:3482: error: in `/home/ptay/Downloads/mangler/mangler-1.2.2':
configure:3486: error: C++ compiler cannot create executables
See `config.log' for more details.

//////////truncated here//////////////////