thanks again. I installed 93 packages using that command you referred me to. I tried to configure again and this was the output:
./configure
configure: loading site script /usr/share/site/i686-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking how to create a ustar tar archive... gnutar
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking for style of include used by make... GNU
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
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 dependency style of gcc... gcc3
checking for gcc option to accept ISO C99... -std=gnu99
checking for gcc -std=gnu99 option to accept ISO Standard C... (cached) -std=gnu99
checking for gcc... ccompiler
checking for ranlib... ranlib
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 g++... cxxcompiler
checking for bison... bison -y
checking for bison >= 1.31... found 2.5, ok
checking for flex... flex
checking lex output file root... lex.yy
checking lex library... -lfl
checking whether yytext is a pointer... yes
checking for flex >= 2.5.33... found 2.5.35, ok
checking for flex != 2.5.34... not found, good
checking whether perl executable path has been provided... no
checking for perl... /usr/bin/perl
checking for a sed that does not truncate output... /usr/bin/sed
checking for grep that handles long lines and -e... /usr/bin/grep
checking for perl version... This is perl 5, version 14, subversion 2 (v5.14.2) built for i586-linux-thread-multi
checking for gawk... (cached) gawk
checking for zip... zip
checking for unzip... unzip
checking for a2x... no
checking for wkhtmltopdf... no
checking how to run the C preprocessor... gcc -std=gnu99 -E
checking for egrep... /usr/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 minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking for strlcpy... no
checking for strlcat... no
checking whether gcc -std=gnu99 accepts -fstack-protector... yes
checking whether g++ accepts -fstack-protector... yes
checking alloca.h usability... yes
checking alloca.h presence... yes
checking for alloca.h... yes
checking whether NLS is requested... yes
checking for msgfmt... /usr/bin/msgfmt
checking for gmsgfmt... /usr/bin/msgfmt
checking for xgettext... /usr/bin/xgettext
checking for msgmerge... /usr/bin/msgmerge
checking for ld used by GCC... /usr/i586-suse-linux/bin/ld
checking if the linker (/usr/i586-suse-linux/bin/ld) is GNU ld... yes
checking for shared library run path origin... done
checking for CFPreferencesCopyAppValue... no
checking for CFLocaleCopyCurrent... no
checking for GNU gettext in libc... yes
checking whether to use NLS... yes
checking where the gettext function comes from... libc
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for pkg-config >= 0.9... found 0.25, ok
checking whether to build NSIS installer... no
checking whether to compile in debug mode... no
checking whether the C compiler accepts the -Werror -Wno-switch flag... yes
checking whether the C compiler accepts the -Werror -Wno-enum-compare flag... yes
checking for SDL... configure: error: Package requirements (sdl >= 1.2) were not met:
No package 'sdl' found
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.
Alternatively, you may set the environment variables SDL_CFLAGS
and SDL_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.