no acceptable C compiler found in $PATH

If you get this error:

configure --enable-shared --enable-pthread CFLAGS=-D_XOPEN_SOURCE=1
checking build system type... i686-apple-darwin9.0.0
checking host system type... i686-apple-darwin9.0.0
checking target system type... i686-apple-darwin9.0.0
checking for gcc... no
checking for cc... no
checking for cl.exe... no
configure: error: no acceptable C compiler found in $PATH
See `config.log' for more details.

Install XCode to resolve the above issue.