add libstemmer.

component/libstemmer/buildout.cfg

+# libstemmer
+# http://snowball.tartarus.org/
+
+[libstemmer]
+recipe = slapos.recipe.cmmi
+url = http://snowball.tartarus.org/dist/libstemmer_c.tgz
+md5sum = 6f32f8f81cd6fa0150333ab540af5e27
+patch-options = -p0
+patches =
+  ${:_profile_base_location_}/libstemmer.Makefile.patch#f337bfe457ecf00d3297043a153d402a
+location = ${buildout:parts-directory}/${:_buildout_section_name_}
+configure-command = true
+make-options = DESTDIR=${:location}
+

component/libstemmer/libstemmer.Makefile.patch

+--- Makefile.orig	2014-12-29 15:39:57.433970435 +0100
++++ Makefile	2014-12-29 15:54:42.115248445 +0100
+@@ -1,9 +1,19 @@
+ include mkinc.mak
+-CFLAGS=-Iinclude
+-all: libstemmer.o stemwords
+-libstemmer.o: $(snowball_sources:.c=.o)
+-	$(AR) -cru $@ $^
+-stemwords: examples/stemwords.o libstemmer.o
+-	$(CC) -o $@ $^
++CFLAGS+=-Iinclude -fPIC
++DESTDIR=/usr/local
++all: libstemmer.so libstemmer.a stemwords
++libstemmer.so: $(snowball_sources:.c=.o)
++	$(CC) $(CFLAGS) -shared $(LDFLAGS) -Wl,-soname,$@.0d -o $@.0d.0.0 $^
++	ln -s $@.0d.0.0 $@.0d
++	ln -s $@.0d.0.0 $@
++libstemmer.a: $(snowball_sources:.c=.o)
++	$(AR) -crs $@ $^
++stemwords: examples/stemwords.o libstemmer.so
++	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
+ clean:
+-	rm -f stemwords *.o src_c/*.o runtime/*.o libstemmer/*.o
++	rm -f stemwords libstemmer.so* libstemmer.a *.o src_c/*.o runtime/*.o libstemmer/*.o
++install: all
++	mkdir -p $(DESTDIR)/include
++	mkdir -p $(DESTDIR)/lib
++	cp -a include/*.h $(DESTDIR)/include/
++	cp -a libstemmer.* $(DESTDIR)/lib/