split mpc and mpfr from gcc buildout

component/mpc/buildout.cfg

+[buildout]
+extends =
+  ../gmp/buildout.cfg
+  ../mpfr/buildout.cfg
+
+parts =
+  mpc
+  
+[mpc]
+recipe = slapos.recipe.cmmi
+url = http://ftp.gnu.org/gnu/mpc/mpc-1.0.3.tar.gz
+md5sum = d6a1d5f8ddea3abd2cc3e98f58352d26
+configure-options =
+  --with-gmp=${gmp:location}
+  --with-mpfr=${mpfr:location}
+  --disable-static
+environment =
+  LDFLAGS=-Wl,-rpath=${gmp:location}/lib -Wl,-rpath=${mpfr:location}/lib
\ No newline at end of file

component/mpfr/buildout.cfg

+[buildout]
+extends = 
+  ../gmp/buildout.cfg
+  ../xz-utils/buildout.cfg
+
+[mpfr]
+recipe = slapos.recipe.cmmi
+url = http://ftp.gnu.org/gnu/mpfr/mpfr-3.1.3.tar.xz
+md5sum = 6969398cd2fbc56a6af570b5273c56a9
+configure-options =
+  --with-gmp=${gmp:location}
+  --disable-static
+environment =
+  PATH=${xz-utils:location}/bin:%(PATH)s
+  LDFLAGS=-Wl,-rpath=${gmp:location}/lib
\ No newline at end of file