Hello everybody
I am trying to compile a simple c++ program with Kdevelop using hashlib++
and the compiler return this error
configure: error: in `/home/Projects/esempio':
configure: error: C++ compiler cannot create executables

I report my config.log

hostname = localhost
uname -m = i686
uname -r = 2.6.27.7-smp
uname -s = Linux
uname -v = #2 SMP Thu Nov 20 22:32:43 CST 2008

/usr/bin/uname -p = Intel(R) Pentium(R) M processor 1.70GHz
/bin/uname -X = unknown

/bin/arch = i686
/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/sbin
PATH: /sbin
PATH: /usr/local/bin
PATH: /usr/bin
PATH: /bin
PATH: /usr/games
PATH: /usr/lib/java/bin
PATH: /usr/lib/java/jre/bin
PATH: /usr/lib/qt/bin
PATH: /usr/share/texmf/bin


## ----------- ##
## Core tests. ##
## ----------- ##

configure:2074: checking for a BSD-compatible install
configure:2142: result: /usr/bin/ginstall -c
configure:2153: checking whether build environment is sane
configure:2196: result: yes
configure:2221: checking for a thread-safe mkdir -p
configure:2260: result: /usr/bin/mkdir -p
configure:2273: checking for gawk
configure:2289: found /usr/bin/gawk
configure:2300: result: gawk
configure:2311: checking whether make sets $(MAKE)
configure:2333: result: yes
configure:2582: checking for g++
configure:2598: found /usr/bin/g++
configure:2609: result: g++
configure:2636: checking for C++ compiler version
configure:2644: g++ --version >&5
g++ (GCC) 4.2.4
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

configure:2648: $? = 0
configure:2655: g++ -v >&5
Reading specs from /usr/lib/gcc/i486-slackware-linux/4.2.4/specs
Target: i486-slackware-linux
Configured with: ../gcc-4.2.4/configure --prefix=/usr --enable-shared --enable-languages=ada,c,c++,fortran,java,objc --enable-threads=posix --enable-__cxa_atexit --disable-checking --with-gnu-ld --verbose --with-arch=i486 --target=i486-slackware-linux --host=i486-slackware-linux
Thread model: posix
gcc version 4.2.4
configure:2659: $? = 0
configure:2666: g++ -V >&5
g++: '-V' option must have argument
configure:2670: $? = 1
configure:2693: checking for C++ compiler default output file name
configure:2715: g++ -l/home/Projects/esempio/hashlib++_0.3.1/src -L/home/Projects/esempio/hashlib++_0.3.1/src conftest.cpp >&5
/usr/lib/gcc/i486-slackware-linux/4.2.4/../../../../i486-slackware-linux/bin/ld: cannot find -l/home/Projects/esempio/hashlib++::3.1/src
collect2: ld returned 1 exit status
configure:2719: $? = 1
configure:2757: result:
configure: failed program was:
| /* confdefs.h. */
| #define PACKAGE_NAME ""
| #define PACKAGE_TARNAME ""
| #define PACKAGE_VERSION ""
| #define PACKAGE_STRING ""
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE "esempio"
| #define VERSION "0.1"
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
configure:2763: error: in `/home/Projects/esempio':
configure:2766: error: C++ compiler cannot create executables
See `config.log' for more details.

## ---------------- ##
## Cache variables. ##
## ---------------- ##

ac_cv_env_CCC_set=
ac_cv_env_CCC_value=
ac_cv_env_CC_set=
ac_cv_env_CC_value=
ac_cv_env_CFLAGS_set=
ac_cv_env_CFLAGS_value=
ac_cv_env_CPPFLAGS_set=set
ac_cv_env_CPPFLAGS_value=-l/home/Projects/esempio/hashlib++_0.3.1/src
ac_cv_env_CPP_set=
ac_cv_env_CPP_value=
ac_cv_env_CXXCPP_set=
ac_cv_env_CXXCPP_value=
ac_cv_env_CXXFLAGS_set=
ac_cv_env_CXXFLAGS_value=
ac_cv_env_CXX_set=
ac_cv_env_CXX_value=
ac_cv_env_F77_set=
ac_cv_env_F77_value=
ac_cv_env_FFLAGS_set=
ac_cv_env_FFLAGS_value=
ac_cv_env_LDFLAGS_set=set
ac_cv_env_LDFLAGS_value=-L/home/Projects/esempio/hashlib++_0.3.1/src
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_path_install='/usr/bin/ginstall -c'
ac_cv_path_mkdir=/usr/bin/mkdir
ac_cv_prog_AWK=gawk
ac_cv_prog_ac_ct_CXX=g++
ac_cv_prog_make_make_set=yes

## ----------------- ##
## Output variables. ##
## ----------------- ##

ACLOCAL='${SHELL} /home/Projects/esempio/missing --run aclocal-1.10'
AMDEPBACKSLASH=''
AMDEP_FALSE=''
AMDEP_TRUE=''
AMTAR='${SHELL} /home/Projects/esempio/missing --run tar'
AR=''
AUTOCONF='${SHELL} /home/Projects/esempio/missing --run autoconf'
AUTOHEADER='${SHELL} /home/Projects/esempio/missing --run autoheader'
AUTOMAKE='${SHELL} /home/Projects/esempio/missing --run automake-1.10'
AWK='gawk'
CC=''
CCDEPMODE=''
CFLAGS=''
CPP=''
CPPFLAGS='-l/home/Projects/esempio/hashlib++_0.3.1/src'
CXX='g++'
CXXCPP=''
CXXDEPMODE=''
CXXFLAGS=''
CYGPATH_W='echo'
DEFS=''
DEPDIR=''
DSYMUTIL=''
ECHO='echo'
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP=''
EXEEXT=''
F77=''
FFLAGS=''
GREP=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
INSTALL_STRIP_PROGRAM='$(install_sh) -c -s'
LDFLAGS='-L/home/Projects/esempio/hashlib++_0.3.1/src'
LIBOBJS=''
LIBS=''
LIBTOOL=''
LN_S=''
LTLIBOBJS=''
MAKEINFO='${SHELL} /home/Projects/esempio/missing --run makeinfo'
MKDIR_P='/usr/bin/mkdir -p'
NMEDIT=''
OBJEXT=''
PACKAGE='esempio'
PACKAGE_BUGREPORT=''
PACKAGE_NAME=''
PACKAGE_STRING=''
PACKAGE_TARNAME=''
PACKAGE_VERSION=''
PATH_SEPARATOR=':'
RANLIB=''
SED=''
SET_MAKE=''
SHELL='/bin/sh'
STRIP=''
VERSION='0.1'
ac_ct_CC=''
ac_ct_CXX='g++'
ac_ct_F77=''
am__fastdepCC_FALSE=''
am__fastdepCC_TRUE=''
am__fastdepCXX_FALSE=''
am__fastdepCXX_TRUE=''
am__include=''
am__isrc=''
am__leading_dot='.'
am__quote=''
am__tar='${AMTAR} chof - "$$tardir"'
am__untar='${AMTAR} xf -'
bindir='${exec_prefix}/bin'
build=''
build_alias=''
build_cpu=''
build_os=''
build_vendor=''
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE}'
dvidir='${docdir}'
exec_prefix='NONE'
host=''
host_alias=''
host_cpu=''
host_os=''
host_vendor=''
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
install_sh='$(SHELL) /home/Projects/esempio/install-sh'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
mandir='${datarootdir}/man'
mkdir_p='/usr/bin/mkdir -p'
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='NONE'
program_transform_name='s,x,x,'
psdir='${docdir}'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='${prefix}/etc'
target_alias=''

## ----------- ##
## confdefs.h. ##
## ----------- ##

#define PACKAGE_NAME ""
#define PACKAGE_TARNAME ""
#define PACKAGE_VERSION ""
#define PACKAGE_STRING ""
#define PACKAGE_BUGREPORT ""
#define PACKAGE "esempio"
#define VERSION "0.1"

configure: exit 77


can someone help me please?
thank you
bye

If "high level" tool don't work, use the "low level" ones. open a terminal and write "g++ -o <name of executable> <path to source file>" and see it's output. If it works well, that means that simply put, the path to g++ in kdevelop is wrong .

Thank you Dracuss for your suggest!!
I used low level tool and it's worked
then I change the project option in kdevelop but now the compiler returns another error that i post below

home/Projects/esempio/hashlib++::3.1/src/: file not recognized: Is a directory
collect2: ld returned 1 exit status
g++ -O0 -g3 /home/Projects/esempio/hashlib++_0.3.1/src/ -o esempio2 esempio2.o -L/home/Projects/esempio2/debug/src
gmake[2]: *** [esempio2] Error 1
gmake[2]: Target `all' not remade because of errors.
gmake[1]: *** [all-recursive] Error 1
gmake: *** [all] Error 2
*** Exit with status: 2 ***


What does it mean??
Thank you

Well, I never worked with Kdevelop... And I really don't know how to help you configuring Kdevelop.

Try to look at this error:
IMHO, you should specify the files you need to compile, not the directory. Or at least try "./src/*"
Also I don't understand this:
well, I don't know what the "-L" option does, but there should be a blank character between "-L" and "/home/...".

And also I don't understand why Kdevelop uses gmake... That would mean that it uses a Makefile for compiling your work. So if I was you, I would look in it instead of configuring Kdevelop