[installation logiciels] aucun ne s'install

salut tout le monde voila j'utilise mandriva 2006 edition free, et a chaque fois que jessaye d'installer un logiciel depuis la source a la fin de la configuration il y a un problem de SDL pourtant je sais qu'elle est installée voici un example de ce que j'ai en console :
[moh@localhost ppracer-0.3.1]$ ./configure
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking target system type... i686-pc-linux-gnu
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 whether to enable maintainer-specific portions of Makefiles... no
checking for a BSD-compatible install... /usr/bin/install -c
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 for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking dependency style of g++... gcc3
checking for ranlib... ranlib
checking how to run the C preprocessor... gcc -E
checking for egrep... 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 sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking for unistd.h... (cached) yes
checking for an ANSI C-conforming const... yes
checking whether time.h and sys/time.h may both be included... yes
checking for getcwd... yes
checking for gettimeofday... yes
checking for strdup... yes
checking for finite... yes
checking for isnan... yes
checking for _finite... no
checking for _isnan... no
checking ieeefp.h usability... no
checking ieeefp.h presence... no
checking for ieeefp.h... no
checking for Win32 platform... no
checking for X... libraries /usr/X11R6/lib, headers /usr/X11R6/include
checking for gethostbyname... yes
checking for connect... yes
checking for remove... yes
checking for shmat... yes
checking for IceConnectionNumber in -lICE... yes
checking for main in -ldl... yes
checking for main in -lm... yes
checking for location of tclConfig.sh... /usr/lib/tclConfig.sh
checking for sdl-config... no
checking for SDL - version >= 1.2.0... no
*** The sdl-config script installed by SDL could not be found
*** If SDL was installed in PREFIX, make sure PREFIX/bin is in
*** your path, or set the SDL_CONFIG environment variable to the
*** full path to sdl-config.
configure: error: SDL not found - use the --with-sdl-* options
[moh@localhost ppracer-0.3.1]$

j'ai essayé de faire : ./configure --with-sdl- mais c'est le meme resultat

je ne comprends vraiment pas ce qui se passe
je vous remercie d'avance