Hi I have tried to install syslog-ng-3.0.1+20090312 with eventlog-0.2.9+20090312 on a CentOS 5.2 following this steps below 1) tar -xzvf eventlog-0.2.9+20090312.tar.gz 2) tar -xzvf syslog-ng-3.0.1+20090312.tar.gz 3) mkdir -p /opt/syslog-ng-3.0.1/eventlog 4) cd eventlog-0.2.9+20090312 5) ./configure --prefix=/opt/syslog-ng-3.0.1/eventlog/ 6) make&&make install 7) export PKG_CONFIG_PATH=/opt/syslog-ng-3.0.1/eventlog/lib/pkgconfig/ 8) cd syslog-ng-3.0.1+20090312 9) ./configure --prefix=/opt/syslog-ng-3.0.1/ and this is the output executing the last command checking for pkg-config... /usr/bin/pkg-config checking pkg-config is at least version 0.9.0... yes 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 for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for style of include used by make... GNU checking dependency style of gcc... gcc3 checking for gcc... (cached) gcc checking whether we are using the GNU C compiler... (cached) yes checking whether gcc accepts -g... (cached) yes checking for gcc option to accept ISO C89... (cached) none needed checking dependency style of gcc... (cached) gcc3 checking for bison... no checking for byacc... no checking for flex... no checking for lex... no checking whether make sets $(MAKE)... (cached) yes checking for ranlib... ranlib checking for special C compiler options needed for large files... no checking for _FILE_OFFSET_BITS value needed for large files... 64 checking how to enable static linking for certain libraries... GNU or Solaris checking how to run the C preprocessor... gcc -E checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking dmalloc.h usability... no checking dmalloc.h presence... no checking for dmalloc.h... no checking for strings.h... (cached) yes checking getopt.h usability... yes checking getopt.h presence... yes checking for getopt.h... yes checking stropts.h usability... yes checking stropts.h presence... yes checking for stropts.h... yes checking sys/strlog.h usability... no checking sys/strlog.h presence... no checking for sys/strlog.h... no checking door.h usability... no checking door.h presence... no checking for door.h... no checking sys/capability.h usability... no checking sys/capability.h presence... no checking for sys/capability.h... no checking sys/prctl.h usability... yes checking sys/prctl.h presence... yes checking for sys/prctl.h... yes checking tcpd.h usability... yes checking tcpd.h presence... yes checking for tcpd.h... yes checking whether struct tm is in sys/time.h or time.h... time.h checking for struct tm.tm_gmtoff... yes checking for I_CONSLOG... no checking for O_LARGEFILE... yes checking for struct sockaddr_storage... yes checking for struct sockaddr_in6... yes checking for PR_SET_KEEPCAPS... yes checking for door_create in -ldoor... no checking for socket in -lsocket... no checking for nanosleep in -lrt... yes checking for gethostbyname in -lnsl... yes checking for regexec in -lregex... no checking for res_init in -lresolv... no checking for cap_set_proc in -lcap... no checking for pcre_compile in -lpcre... no checking for strdup... yes checking for strtol... yes checking for strtoll... yes checking for strtoimax... yes checking for inet_aton... yes checking for inet_ntoa... yes checking for getopt_long... yes checking for getaddrinfo... yes checking for getutent... yes checking for strcasestr... yes checking for TCP wrapper library... -lwrap checking for OPENSSL... yes checking for dlsym in -ldl... yes checking for inflate in -lz... yes checking for dlsym in -ldl... (cached) yes checking for LIBDBI... no checking for dbi_initialize in -ldbi... no checking for LIBNET... no checking whether to enable Sun STREAMS support... no checking whether to enable Sun door support... no checking whether to enable TCP wrapper support... yes checking whether to enable spoof source support... no checking whether to enable IPv6 support... yes checking whether to enable SQL support... no checking whether to enable Linux capability support... no checking whether to enable PCRE support... no checking for pkg-config... /usr/bin/pkg-config checking for GLIB - version >= 2.10.1... no *** Could not run GLIB test program, checking why... *** The test program failed to compile or link. See the file config.log for the *** exact error that occured. This usually means GLIB is incorrectly installed. configure: error: Cannot find GLIB version >= 2.10.1: is pkg-config in path? the latest 5 lines upon the GLIB library not updated, but mi CentOS is the latest. So, why this error? All hepls will be highly appreciated bye Luigi