SDL Version 1.2.0 not found

Hello,
When I try to compile the test progrem in SDL-1.2.2/test/ I have this
message at the end of the failed configure :

checking for SDL - version >= 1.2.0… ./configure: /usr/local/bin: is a directory
./configure: /usr/local/bin: is a directory
./configure: /usr/local/bin: is a directory
./configure: /usr/local/bin: is a directory
./configure: /usr/local/bin: is a directory
no
*** Could not run SDL 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 SDL was incorrectly installed
*** or that you have moved SDL since it was installed. In the latter case, you
*** may want to edit the sdl-config script: /usr/local/bin
configure: error: *** SDL version 1.2.0 not found!

I have read the FAQ and the thread of ‘Mon Sep 3 2001’ which is called
’Cant compile SDL programs, SDL version 1.2.0 not found’ but it didn’t solve.

I run Slackware 7.1 with kernel 2.4.9

bash-2.04$ which sdl-config
/usr/local/bin/sdl-config

bash-2.04$ sdl-config --version
1.2.2

bash-2.04$ locate libSDL
/home/al/SDL-1.2.2/src/.libs/libSDL-1.2.so.0
/home/al/SDL-1.2.2/src/.libs/libSDL-1.2.so.0.0.2
/home/al/SDL-1.2.2/src/.libs/libSDL.a
/home/al/SDL-1.2.2/src/.libs/libSDL.la
/home/al/SDL-1.2.2/src/.libs/libSDL.lai
/home/al/SDL-1.2.2/src/.libs/libSDL.so
/home/al/SDL-1.2.2/src/libSDL.la
/home/al/SDL-1.2.2/src/main/libSDLmain.a
/usr/local/lib/libSDL-1.2.so.0
/usr/local/lib/libSDL-1.2.so.0.0.2
/usr/local/lib/libSDL.a
/usr/local/lib/libSDL.la
/usr/local/lib/libSDL.so
/usr/local/lib/libSDLmain.a

bash-2.04# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin/:/usr/local/include/SDL/

bash-2.04# cat /etc/ld.so.conf
/usr/local/kde/lib
/usr/local/lib/xmps/renderers/video
/usr/local/lib/mysql
/usr/local/lib
/usr/X11R6/lib
/usr/i386-slackware-linux/lib
/usr/i386-slackware-linux-gnulibc1/lib
/usr/i386-slackware-linux-gnuaout/lib
/usr/openwin/lib

Extracted from the config.log :
[…]
configure: failed program was:
#line 1305 “configure”
#include “confdefs.h”
#include <X11/Intrinsic.h>
configure:1386: gcc -o conftest -g -O2 conftest.c -lXt 1>&5
/usr/i386-slackware-linux/bin/ld: cannot open -lXt: No such file or directory
collect2: ld returned 1 exit status
configure: failed program was:
#line 1379 “configure”
#include “confdefs.h”
[…]
configure:2293: gcc -o conftest -g -O2 -I/usr/X11R6/include conftest.c 1>&5
configure:2281: SDL.h: No such file or directory
configure: failed program was:
#line 2278 “configure”
#include “confdefs.h”

#include <stdio.h>
#include “SDL.h”

int main(int argc, char *argv[])
{ return 0; }
#undef main
#define main K_and_R_C_main

int main() {
 return 0;
 ; return 0; }

Any help wil be very appreciated (and sorry if my english is not perfect).

Alex,
Toulouse, France

Extracted from the config.log :
[…]
configure:2293: gcc -o conftest -g -O2 -I/usr/X11R6/include conftest.c 1>&5
configure:2281: SDL.h: No such file or directory

What’s the output of:
sdl-config --cflags

See ya,
-Sam Lantinga, Software Engineer, Blizzard Entertainment