Description: Build libstemmer as a shared library.
Author: Stefano Rivera <stefanor@debian.org>
Forwarded: http://news.gmane.org/find-root.php?message_id=%3c20110821220427.GC1738%40bach.rivera.co.za%3e
Last-Update: 2019-10-17

--- a/GNUmakefile
+++ b/GNUmakefile
@@ -154,12 +154,13 @@ JAVA_RUNTIME_CLASSES=$(JAVARUNTIME_SOURC
 override CFLAGS += -W -Wall -Wmissing-prototypes -Wmissing-declarations
 override CPPFLAGS += -Iinclude
 
-all: snowball libstemmer.o stemwords $(C_OTHER_SOURCES) $(C_OTHER_HEADERS) $(C_OTHER_OBJECTS)
+all: snowball libstemmer.so stemwords $(C_OTHER_SOURCES) $(C_OTHER_HEADERS) $(C_OTHER_OBJECTS)
 
 clean:
 	rm -f $(COMPILER_OBJECTS) $(RUNTIME_OBJECTS) \
 	      $(LIBSTEMMER_OBJECTS) $(LIBSTEMMER_UTF8_OBJECTS) $(STEMWORDS_OBJECTS) snowball \
-	      libstemmer.o stemwords \
+	      $(wildcard libstemmer.so*) libstemmer.a \
+	          stemwords \
               libstemmer/modules.h \
               libstemmer/modules_utf8.h \
 	      $(C_LIB_SOURCES) $(C_LIB_HEADERS) $(C_LIB_OBJECTS) \
@@ -173,7 +174,7 @@ clean:
               libstemmer/mkinc.mak libstemmer/mkinc_utf8.mak \
               libstemmer/libstemmer.c libstemmer/libstemmer_utf8.c \
 	      algorithms.mk
-	rm -rf dist
+	rm -rf dist .shared
 	-rmdir $(c_src_dir)
 	-rmdir $(python_output_dir)
 	-rmdir $(js_output_dir)
@@ -197,11 +198,17 @@ libstemmer/modules_utf8.h libstemmer/mki
 
 libstemmer/libstemmer.o: libstemmer/modules.h $(C_LIB_HEADERS)
 
-libstemmer.o: libstemmer/libstemmer.o $(RUNTIME_OBJECTS) $(C_LIB_OBJECTS)
-	$(AR) -cru $@ $^
+libstemmer.so: libstemmer/libstemmer.o $(RUNTIME_OBJECTS) $(C_LIB_OBJECTS)
+	$(CC) $(CFLAGS) -shared $(LDFLAGS) \
+	      -Wl,-soname,libstemmer.so.0 \
+	      -o $@.0.0.0 ${^:%=.shared/%}
+	ln -s $@.0.0.0 $@.0
+	ln -s $@.0.0.0 $@
+	$(AR) -crs ${@:.so=.a} $^
 
-stemwords: $(STEMWORDS_OBJECTS) libstemmer.o
+stemwords: $(STEMWORDS_OBJECTS) libstemmer.so
 	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
+	$(CC) $(CFLAGS) $(LDFLAGS) -g -o $@ $(STEMWORDS_OBJECTS) -L. -lstemmer
 
 csharp_stemwords: $(CSHARP_STEMWORDS_SOURCES) $(CSHARP_RUNTIME_SOURCES) $(CSHARP_SOURCES)
 	$(MCS) -unsafe -target:exe -out:$@ $(CSHARP_STEMWORDS_SOURCES) $(CSHARP_RUNTIME_SOURCES) $(CSHARP_SOURCES)
@@ -241,7 +248,6 @@ $(c_src_dir)/stem_ISO_8859_2_%.c $(c_src
 	./snowball charsets/ISO-8859-2.sbl $< -o $${o} -eprefix $${l}_ISO_8859_2_ -r ../runtime
 
 $(c_src_dir)/stem_%.o: $(c_src_dir)/stem_%.c $(c_src_dir)/stem_%.h
-	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
 
 $(java_src_dir)/%Stemmer.java: algorithms/%.sbl snowball
 	@mkdir -p $(java_src_dir)
@@ -473,13 +479,14 @@ check_koi8r: $(KOI8_R_algorithms:%=check
 # a sibling to this one.
 STEMMING_DATA ?= ../snowball-data
 STEMMING_DATA_ABS := $(abspath $(STEMMING_DATA))
+STEMWORDS=LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ./stemwords
 
 check_utf8_%: $(STEMMING_DATA)/% stemwords
 	@echo "Checking output of `echo $<|sed 's!.*/!!'` stemmer with UTF-8"
 	@if test -f '$</voc.txt.gz' ; then \
-	  gzip -dc '$</voc.txt.gz'|./stemwords -c UTF_8 -l `echo $<|sed 's!.*/!!'` -o tmp.txt; \
+	  gzip -dc '$</voc.txt.gz'|$(STEMWORDS) -c UTF_8 -l `echo $<|sed 's!.*/!!'` -o tmp.txt; \
 	else \
-	  ./stemwords -c UTF_8 -l `echo $<|sed 's!.*/!!'` -i $</voc.txt -o tmp.txt; \
+	  $(STEMWORDS) -c UTF_8 -l `echo $<|sed 's!.*/!!'` -i $</voc.txt -o tmp.txt; \
 	fi
 	@if test -f '$</output.txt.gz' ; then \
 	  gzip -dc '$</output.txt.gz'|diff -u - tmp.txt; \
@@ -491,7 +498,7 @@ check_utf8_%: $(STEMMING_DATA)/% stemwor
 check_iso_8859_1_%: $(STEMMING_DATA)/% stemwords
 	@echo "Checking output of `echo $<|sed 's!.*/!!'` stemmer with ISO_8859_1"
 	@$(ICONV) -fUTF8 -tISO8859-1 '$</voc.txt' |\
-	    ./stemwords -c ISO_8859_1 -l `echo $<|sed 's!.*/!!'` -o tmp.txt
+	    $(STEMWORDS) -c ISO_8859_1 -l `echo $<|sed 's!.*/!!'` -o tmp.txt
 	@$(ICONV) -fUTF8 -tISO8859-1 '$</output.txt' |\
 	    diff -u - tmp.txt
 	@rm tmp.txt
@@ -499,7 +506,7 @@ check_iso_8859_1_%: $(STEMMING_DATA)/% s
 check_iso_8859_2_%: $(STEMMING_DATA)/% stemwords
 	@echo "Checking output of `echo $<|sed 's!.*/!!'` stemmer with ISO_8859_2"
 	@$(ICONV) -fUTF8 -tISO8859-2 '$</voc.txt' |\
-	    ./stemwords -c ISO_8859_2 -l `echo $<|sed 's!.*/!!'` -o tmp.txt
+	    $(STEMWORDS) -c ISO_8859_2 -l `echo $<|sed 's!.*/!!'` -o tmp.txt
 	@$(ICONV) -fUTF8 -tISO8859-2 '$</output.txt' |\
 	    diff -u - tmp.txt
 	@rm tmp.txt
@@ -507,7 +514,7 @@ check_iso_8859_2_%: $(STEMMING_DATA)/% s
 check_koi8r_%: $(STEMMING_DATA)/% stemwords
 	@echo "Checking output of `echo $<|sed 's!.*/!!'` stemmer with KOI8R"
 	@$(ICONV) -fUTF8 -tKOI8-R '$</voc.txt' |\
-	    ./stemwords -c KOI8_R -l `echo $<|sed 's!.*/!!'` -o tmp.txt
+	    $(STEMWORDS) -c KOI8_R -l `echo $<|sed 's!.*/!!'` -o tmp.txt
 	@$(ICONV) -fUTF8 -tKOI8-R '$</output.txt' |\
 	    diff -u - tmp.txt
 	@rm tmp.txt
@@ -663,4 +670,9 @@ update_version:
 		csharp/Snowball/AssemblyInfo.cs \
 		python/setup.py
 
+%.o: %.c
+	@mkdir -p $(shell dirname ${@:%=.shared/%})
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c -fPIC -o ${@:%=.shared/%} $<
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
+
 .SUFFIXES: .class .java