Installationshjälp för TWAIN SANE sökes

Vill installera TWAIN SANE och de andra grejerna på http://www.ellert.se/twain-sane/
Gettext ska tydligen vara det första man ska installera, men när jag försöker installera det får jag följande felmeddelande:
configure: error: no acceptable C compiler found in $PATH
Var finner man en C compiler för OSX och hur installerar man den?

tack, det ska jag prova. är det gcc 3.3 som är c compiler?

har nu installerat developer tools och gcc 3.3 och jag får dessa meddelanden:
Warning: No valid Deployment Target specified.
Possible targets are: 10.1, 10.2 and 10.3
The software will be built for the installed MacOSX version.
No SDK package will be built.
patching file gettext-0.14.1/gettext-tools/lib/progname.c
patching file gettext-0.14.1/gettext-runtime/configure
patching file gettext-0.14.1/gettext-tools/configure
patching file gettext-0.14.1/config/ltmain.sh
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking build system type... powerpc-apple-darwin7.8.0
checking host system type... powerpc-apple-darwin7.8.0
configure: creating ./config.status
config.status: creating Makefile
configure: configuring in autoconf-lib-link
configure: running /bin/sh './configure' --prefix=/usr/local '--with-included-gettext' '--disable-shared' 'LDFLAGS=-no-undefined' --cache-file=/dev/null --srcdir=.
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking for gcc... gcc
checking for C compiler default output file name... configure: error: C compiler cannot create executables
See `config.log' for more details.
configure: error: /bin/sh './configure' failed for autoconf-lib-link
Making all in autoconf-lib-link
make[1]: *** No rule to make target `all'. Stop.
make: *** [all-recursive] Error 1
Making install in autoconf-lib-link
make[1]: Nothing to be done for `install'.
Making install in gettext-runtime
make[1]: Nothing to be done for `install'.
Making install in gettext-tools
make[1]: Nothing to be done for `install'.
make[2]: Nothing to be done for `install-exec-am'.
make[2]: Nothing to be done for `install-data-am'.
find: /tmp/gettext.dst: No such file or directory

vart bör den filen ha hamnat?