How to get ssl configured on RHEL3? Can't seem to hook up with openssl/ssl.h. This is 8.3.0 and it works on RHEL4: $ cat /etc/issue Red Hat Enterprise Linux AS release 3 (Taroon Update 9) Kernel \r on an \m $ rpm -qa | grep ssl docbook-style-dsssl-1.76-8 mod_ssl-2.0.46-70.ent openssl-0.9.7a-33.24 openssl-devel-0.9.7a-33.24 openssl-perl-0.9.7a-33.24 openssl096b-0.9.6b-16.46 $ rpm -ql openssl-devel | grep ssl.h /usr/include/openssl/hmac.h /usr/include/openssl/kssl.h /usr/include/openssl/ssl.h $ ls -l /usr/include/openssl/ssl.h -rw-r--r-- 1 root root 74519 Oct 16 15:37 /usr/include/openssl/ssl.h $ ./configure --prefix=/usr/local/pgsql830 --with-openssl --with-includes=/usr/include/ checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking which template to use... linux checking whether to build with 64-bit integer date/time support... no checking whether NLS is wanted... no checking for default port number... 5432 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 ANSI C... none needed checking if gcc supports -Wdeclaration-after-statement... yes checking if gcc supports -Wendif-labels... no checking if gcc supports -fno-strict-aliasing... yes configure: using CFLAGS=-O2 -Wall -Wmissing-prototypes -Wpointer-arith -Winline -Wdeclaration-after-statement -fno-strict-aliasing checking whether the C compiler still works... yes checking how to run the C preprocessor... gcc -E checking allow thread-safe client libraries... no checking whether to build with Tcl... no checking whether to build Perl modules... no checking whether to build Python modules... no checking whether to build with GSSAPI support... no checking whether to build with Kerberos 5 support... no checking whether to build with PAM support... no checking whether to build with LDAP support... no checking whether to build with Bonjour support... no checking whether to build with OpenSSL support... yes checking for egrep... grep -E configure: using CPPFLAGS= -D_GNU_SOURCE -I/usr/include/ configure: using LDFLAGS= checking for ld used by GCC... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for ranlib... ranlib checking for strip... strip checking whether it is possible to strip libraries... yes checking for tar... /bin/tar checking whether ln -s works... yes checking for gawk... gawk checking for bison... bison -y configure: using bison (GNU Bison) 1.875c checking for flex... /usr/bin/flex configure: using /usr/bin/flex version 2.5.4 checking for perl... /usr/bin/perl checking for main in -lm... yes checking for library containing setproctitle... no checking for library containing dlopen... -ldl checking for library containing socket... none required checking for library containing shl_load... no checking for library containing getopt_long... none required checking for library containing crypt... -lcrypt checking for library containing fdatasync... none required checking for library containing shmget... none required checking for -lreadline... yes (-lreadline -ltermcap) checking for inflate in -lz... yes checking for CRYPTO_new_ex_data in -lcrypto... yes checking for SSL_library_init in -lssl... yes 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 crypt.h usability... yes checking crypt.h presence... yes checking for crypt.h... yes checking dld.h usability... no checking dld.h presence... no checking for dld.h... no checking fp_class.h usability... no checking fp_class.h presence... no checking for fp_class.h... no checking getopt.h usability... yes checking getopt.h presence... yes checking for getopt.h... yes checking ieeefp.h usability... no checking ieeefp.h presence... no checking for ieeefp.h... no checking langinfo.h usability... yes checking langinfo.h presence... yes checking for langinfo.h... yes checking poll.h usability... yes checking poll.h presence... yes checking for poll.h... yes checking pwd.h usability... yes checking pwd.h presence... yes checking for pwd.h... yes checking sys/ipc.h usability... yes checking sys/ipc.h presence... yes checking for sys/ipc.h... yes checking sys/poll.h usability... yes checking sys/poll.h presence... yes checking for sys/poll.h... yes checking sys/pstat.h usability... no checking sys/pstat.h presence... no checking for sys/pstat.h... no checking sys/resource.h usability... yes checking sys/resource.h presence... yes checking for sys/resource.h... yes checking sys/select.h usability... yes checking sys/select.h presence... yes checking for sys/select.h... yes checking sys/sem.h usability... yes checking sys/sem.h presence... yes checking for sys/sem.h... yes checking sys/socket.h usability... yes checking sys/socket.h presence... yes checking for sys/socket.h... yes checking sys/shm.h usability... yes checking sys/shm.h presence... yes checking for sys/shm.h... yes checking sys/tas.h usability... no checking sys/tas.h presence... no checking for sys/tas.h... no checking sys/time.h usability... yes checking sys/time.h presence... yes checking for sys/time.h... yes checking sys/un.h usability... yes checking sys/un.h presence... yes checking for sys/un.h... yes checking termios.h usability... yes checking termios.h presence... yes checking for termios.h... yes checking utime.h usability... yes checking utime.h presence... yes checking for utime.h... yes checking wchar.h usability... yes checking wchar.h presence... yes checking for wchar.h... yes checking wctype.h usability... yes checking wctype.h presence... yes checking for wctype.h... yes checking kernel/OS.h usability... no checking kernel/OS.h presence... no checking for kernel/OS.h... no checking kernel/image.h usability... no checking kernel/image.h presence... no checking for kernel/image.h... no checking SupportDefs.h usability... no checking SupportDefs.h presence... no checking for SupportDefs.h... no checking netinet/in.h usability... yes checking netinet/in.h presence... yes checking for netinet/in.h... yes checking for netinet/tcp.h... yes checking readline/readline.h usability... yes checking readline/readline.h presence... yes checking for readline/readline.h... yes checking readline/history.h usability... yes checking readline/history.h presence... yes checking for readline/history.h... yes checking zlib.h usability... yes checking zlib.h presence... yes checking for zlib.h... yes checking openssl/ssl.h usability... no checking openssl/ssl.h presence... no checking for openssl/ssl.h... no configure: error: header file <openssl/ssl.h> is required for OpenSSL ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend