From 21cb12c426601aef2d97de01801a4c1979029707 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zolt=C3=A1n=20Mizsei?= <zmizsei@extrowerk.com>
Date: Sun, 21 Nov 2021 04:01:06 +0100
Subject: Imported alpine linux shared lib patch
 https://git.alpinelinux.org/aports/tree/community/snowball/libstemmer-library.patch


diff --git a/GNUmakefile b/GNUmakefile
index 98eb1fa..d94c845 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -8,6 +8,8 @@ ifeq ($(OS),Windows_NT)
 EXEEXT = .exe
 endif
 
+MAJOR_VERSION := $(shell echo $(SNOWBALL_VERSION) | cut -d. -f1)
+
 c_src_dir = src_c
 
 JAVAC ?= javac
@@ -170,12 +172,12 @@ C_OTHER_OBJECTS = $(C_OTHER_SOURCES:.c=.o)
 JAVA_CLASSES = $(JAVA_SOURCES:.java=.class)
 JAVA_RUNTIME_CLASSES=$(JAVARUNTIME_SOURCES:.java=.class)
 
-CFLAGS=-O2 -W -Wall -Wmissing-prototypes -Wmissing-declarations
+CFLAGS=-fPIC -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.a 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
@@ -225,6 +227,11 @@ libstemmer/libstemmer.o: libstemmer/modules.h $(C_LIB_HEADERS)
 libstemmer.a: libstemmer/libstemmer.o $(RUNTIME_OBJECTS) $(C_LIB_OBJECTS)
 	$(AR) -cru $@ $^
 
+libstemmer.so: libstemmer/libstemmer.o $(RUNTIME_OBJECTS) $(C_LIB_OBJECTS)
+	$(CC) $(CFLAGS) -shared $(LDFLAGS) -Wl,-soname,$@.$(MAJOR_VERSION),-version-script,libstemmer/symbol.map -o $@.$(SNOWBALL_VERSION) $^
+	ln -s $@.$(SNOWBALL_VERSION) $@.$(MAJOR_VERSION)
+	ln -s $@.$(SNOWBALL_VERSION) $@
+
 examples/%.o: examples/%.c
 	$(CC) $(CFLAGS) $(INCLUDES) $(CPPFLAGS) -c -o $@ $<
 
diff --git a/libstemmer/symbol.map b/libstemmer/symbol.map
new file mode 100644
index 0000000..7a3d423
--- /dev/null
+++ b/libstemmer/symbol.map
@@ -0,0 +1,6 @@
+SB_STEMMER_0 {
+    global:
+        sb_stemmer_*;
+    local:
+        *;
+};
-- 
2.30.2

