$NetBSD: patch-GNUmakefile,v 1.4 2023/04/27 08:12:44 wiz Exp $

* Build dynamic library, from archlinux.

--- GNUmakefile.orig	2021-11-10 02:42:18.000000000 +0000
+++ GNUmakefile
@@ -170,12 +170,12 @@ C_OTHER_OBJECTS = $(C_OTHER_SOURCES:.c=.
 JAVA_CLASSES = $(JAVA_SOURCES:.java=.class)
 JAVA_RUNTIME_CLASSES=$(JAVARUNTIME_SOURCES:.java=.class)
 
-CFLAGS=-O2 -W -Wall -Wmissing-prototypes -Wmissing-declarations
-CPPFLAGS=
+CFLAGS+=-O2 -W -Wall -Wmissing-prototypes -Wmissing-declarations
+CPPFLAGS+=
 
 INCLUDES=-Iinclude
 
-all: snowball$(EXEEXT) libstemmer.a stemwords$(EXEEXT) $(C_OTHER_SOURCES) $(C_OTHER_HEADERS) $(C_OTHER_OBJECTS)
+all: snowball$(EXEEXT) libstemmer.so stemwords$(EXEEXT) $(C_OTHER_SOURCES) $(C_OTHER_HEADERS) $(C_OTHER_OBJECTS)
 
 algorithms.mk: libstemmer/mkalgorithms.pl libstemmer/modules.txt
 	libstemmer/mkalgorithms.pl algorithms.mk libstemmer/modules.txt
@@ -214,6 +214,9 @@ libstemmer/libstemmer.c: libstemmer/libs
 libstemmer/libstemmer_utf8.c: libstemmer/libstemmer_c.in
 	sed 's/@MODULES_H@/modules_utf8.h/' $^ >$@
 
+libstemmer.so: libstemmer/libstemmer.o $(RUNTIME_OBJECTS) $(C_LIB_OBJECTS)
+	$(CC) $(CFLAGS) -shared $(LDFLAGS) -Wl,-soname,libstemmer.so.0 -Wl,--version-script=libstemmer/symbol.map -o $@.0.0.0 $^
+
 libstemmer/modules.h libstemmer/mkinc.mak: libstemmer/mkmodules.pl libstemmer/modules.txt
 	libstemmer/mkmodules.pl $@ $(c_src_dir) libstemmer/modules.txt libstemmer/mkinc.mak