Mine

file /tmp/linuxdcpp-1.0.3/SConstruct,line 75:
	Configure(confdir = build/sconf)
scons: Configure: Checking for g++ >= 3.4...
scons: Configure: (cached) yes

scons: Configure: Checking for pkg-config... 
pkg-config --version
0.23
scons: Configure: yes

scons: Configure: Checking for gtk+-2.0 >= 2.10... 
pkg-config --exists 'gtk+-2.0 >= 2.10'
scons: Configure: yes

scons: Configure: Checking for gthread-2.0 >= 2.4... 
pkg-config --exists 'gthread-2.0 >= 2.4'
scons: Configure: yes

scons: Configure: Checking for libglade-2.0 >= 2.4... 
pkg-config --exists 'libglade-2.0 >= 2.4'
scons: Configure: yes

scons: Configure: Checking for C header file time.h... 
build/sconf/conftest_4.c <-
  |
  |#include <time.h>
  |
  |
gcc -o build/sconf/conftest_4.o -c build/sconf/conftest_4.c
scons: Configure: yes

scons: Configure: Checking for C header file signal.h... 
build/sconf/conftest_5.c <-
  |
  |#include <signal.h>
  |
  |
gcc -o build/sconf/conftest_5.o -c build/sconf/conftest_5.c
scons: Configure: yes

scons: Configure: Checking for C header file unistd.h... 
build/sconf/conftest_6.c <-
  |
  |#include <unistd.h>
  |
  |
gcc -o build/sconf/conftest_6.o -c build/sconf/conftest_6.c
scons: Configure: yes

scons: Configure: Checking for C library pthread... 
build/sconf/conftest_7.c <-
  |
  |
  |#include "pthread.h"
  |
  |int
  |main() {
  |  
  |return 0;
  |}
  |
gcc -o build/sconf/conftest_7.o -c build/sconf/conftest_7.c
gcc -o build/sconf/conftest_7 build/sconf/conftest_7.o -lpthread
scons: Configure: yes

scons: Configure: Checking for C library z... 
build/sconf/conftest_8.c <-
  |
  |
  |#include "zlib.h"
  |
  |int
  |main() {
  |  
  |return 0;
  |}
  |
gcc -o build/sconf/conftest_8.o -c build/sconf/conftest_8.c
gcc -o build/sconf/conftest_8 build/sconf/conftest_8.o -lpthread -lz
scons: Configure: yes

scons: Configure: Checking for C library bz2... 
build/sconf/conftest_9.c <-
  |
  |
  |#include "bzlib.h"
  |
  |int
  |main() {
  |  
  |return 0;
  |}
  |
gcc -o build/sconf/conftest_9.o -c build/sconf/conftest_9.c
gcc -o build/sconf/conftest_9 build/sconf/conftest_9.o -lpthread -lz -lbz2
scons: Configure: yes

scons: Configure: Checking for C library crypto... 
build/sconf/conftest_10.c <-
  |
  |
  |
  |int
  |main() {
  |  
  |return 0;
  |}
  |
gcc -o build/sconf/conftest_10.o -c build/sconf/conftest_10.c
gcc -o build/sconf/conftest_10 build/sconf/conftest_10.o -lpthread -lz -lbz2 -lcrypto
scons: Configure: yes

scons: Configure: Checking for C library ssl... 
build/sconf/conftest_11.c <-
  |
  |
  |#include "openssl/ssl.h"
  |
  |int
  |main() {
  |  
  |return 0;
  |}
  |
gcc -o build/sconf/conftest_11.o -c build/sconf/conftest_11.c
gcc -o build/sconf/conftest_11 build/sconf/conftest_11.o -lpthread -lz -lbz2 -lcrypto -lssl
scons: Configure: yes

scons: Configure: Checking for C header file iconv.h... 
build/sconf/conftest_12.c <-
  |
  |#include <iconv.h>
  |
  |
gcc -o build/sconf/conftest_12.o -c build/sconf/conftest_12.c
scons: Configure: yes

scons: Configure: Checking for iconv(0, (const char **)0, 0, (char**)0, 0) in C library iconv... 
build/sconf/conftest_13.c <-
  |
  |
  |#include "iconv.h"
  |
  |int
  |main() {
  |  iconv(0, (const char **)0, 0, (char**)0, 0);
  |return 0;
  |}
  |
gcc -o build/sconf/conftest_13.o -c build/sconf/conftest_13.c
build/sconf/conftest_13.c: In function 'main':
build/sconf/conftest_13.c:7: warning: passing argument 2 of 'iconv' from incompatible pointer type
gcc -o build/sconf/conftest_13 build/sconf/conftest_13.o -lpthread -lz -lbz2 -lcrypto -lssl -liconv
scons: Configure: yes

scons: Configure: Checking for C header file net/if.h... 
build/sconf/conftest_14.c <-
  |#include <sys/types.h>
  |#include <sys/socket.h>
  |#include <ifaddrs.h>
  |
  |#include <net/if.h>
  |
  |
gcc -o build/sconf/conftest_14.o -c build/sconf/conftest_14.c
scons: Configure: yes