Requirements (from README.CVS):

   automake 1.9.4 or higher
   libtool 1.5.16 or higher (I used 1.5.6)
   autoconf 2.59 or higher

To build and install:

   sh autogen.sh
   LDFLAGS="-L$(psp-config --pspsdk-path)/lib" LIBS="-lc -lpspuser" \
      ./configure --host psp --prefix=$(psp-config --psp-prefix)
   make
   make install