build: introduce shared libreiserfscore.so and export it

In order to use reiserfs functionality in external programs, we need to
make a shared library and includes available.

This converts both libmisc and libreiserfscore into shared libraries, and
links libmisc into libreiserfscore. We also export the includes and
a pkg-config file.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>

reiserfscore/Makefile.am

@@ -1,5 +1,9 @@
-noinst_LIBRARIES = libcore.a
+lib_LTLIBRARIES = libreiserfscore.la
 
-libcore_a_SOURCES = do_balan.c fix_node.c hashes.c ibalance.c lbalance.c prints.c \
-stree.c node_formats.c reiserfslib.c bitmap.c journal.c includes.h
+libreiserfscore_la_SOURCES = do_balan.c fix_node.c hashes.c ibalance.c \
+			     lbalance.c prints.c stree.c node_formats.c \
+			     reiserfslib.c bitmap.c journal.c includes.h
+libreiserfscore_la_LIBADD = ../lib/libmisc.la
 
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = reiserfscore.pc

reiserfscore/reiserfscore.pc.in

@@ -0,0 +1,10 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: reiserfscore
+Description: ReiserFS Core Library
+Version: @REISERFSPROGS_VERSION@
+Cflags: -I${includedir}/reiserfs -I${includedir}
+Libs: -L${libdir} -lreiserfscore