Add infrastructure for building shared library on OS X.

[notmuch] / lib / Makefile.local

diff --git a/lib/Makefile.local b/lib/Makefile.local
index 79f7b0b7cb34a9ec8c1b8764800eec42a5047035..f001e75b9a01040490f3d464350f9cbc5c330195 100644 (file)
--- a/lib/Makefile.local
+++ b/lib/Makefile.local
@@ -1,7 +1,47 @@
-dir=lib
-extra_cflags += -I$(dir)
+# -*- makefile -*-
+
+# The major version of the library interface. This will control the soname.
+# As such, this number must be incremented for any incompatible change to
+# the library interface, (such as the deletion of an API or a major
+# semantic change that breaks formerly functioning code).
+#
+# Note: We don't currently have plans to increment this at this time.
+# If we *do* want to make an incompatible change to the library
+# interface, we'll have to decide whether to increment this (creating
+# a new soname) or to introduce symbol versioning to be able to
+# provide support for both old and new interfaces without having to
+# increment this.
+LIBNOTMUCH_VERSION_MAJOR = 1
+
+# The minor version of the library interface. This should be incremented at
+# the time of release for any additions to the library interface.
+LIBNOTMUCH_VERSION_MINOR = 0
+
+# The release version the library interface. This should be incremented at
+# the time of release if there have been no changes to the interface, (but
+# simply compatible changes to the implementation).
+LIBNOTMUCH_VERSION_RELEASE = 0
+
+ifeq ($(MAC_OS_X),1)
+LIBRARY_SUFFIX = dylib
+# On OS X, library version numbers go before suffix.
+LINKER_NAME = libnotmuch.$(LIBRARY_SUFFIX)
+SONAME = libnotmuch.$(LIBNOTMUCH_VERSION_MAJOR).$(LIBRARY_SUFFIX)
+LIBNAME = libnotmuch.$(LIBNOTMUCH_VERSION_MAJOR).$(LIBNOTMUCH_VERSION_MINOR).$(LIBNOTMUCH_VERSION_RELEASE).$(LIBRARY_SUFFIX)
+LIBRARY_LINK_FLAG = -Wl,-dylib_install_name -Wl,$(SONAME)
+else
+LIBRARY_SUFFIX = so
+LINKER_NAME = libnotmuch.$(LIBRARY_SUFFIX)
+SONAME = $(LINKER_NAME).$(LIBNOTMUCH_VERSION_MAJOR)
+LIBNAME = $(SONAME).$(LIBNOTMUCH_VERSION_MINOR).$(LIBNOTMUCH_VERSION_RELEASE)
+LIBRARY_LINK_FLAG = -Wl,-soname=$(SONAME)
+endif
+
+dir := lib
+extra_cflags += -I$(dir) -fPIC
 
 libnotmuch_c_srcs =            \
+       $(notmuch_compat_srcs)  \
        $(dir)/libsha1.c        \
        $(dir)/message-file.c   \
        $(dir)/messages.c       \
@@ -11,14 +51,35 @@ libnotmuch_c_srcs =         \
 
 libnotmuch_cxx_srcs =          \
        $(dir)/database.cc      \
+       $(dir)/directory.cc     \
        $(dir)/index.cc         \
        $(dir)/message.cc       \
        $(dir)/query.cc         \
        $(dir)/thread.cc
 
 libnotmuch_modules = $(libnotmuch_c_srcs:.c=.o) $(libnotmuch_cxx_srcs:.cc=.o)
-$(dir)/notmuch.a: $(libnotmuch_modules)
-       $(AR) rcs $@ $^
+
+$(dir)/libnotmuch.a: $(libnotmuch_modules)
+       $(call quiet,AR) rcs $@ $^
+
+$(dir)/$(LIBNAME): $(libnotmuch_modules)
+       $(call quiet,CXX $(CXXFLAGS)) $^ $(FINAL_LIBNOTMUCH_LDFLAGS) -shared $(LIBRARY_LINK_FLAG) -o $@
+
+$(dir)/$(SONAME): $(dir)/$(LIBNAME)
+       ln -sf $(LIBNAME) $@
+
+$(dir)/$(LINKER_NAME): $(dir)/$(SONAME)
+       ln -sf $(LIBNAME) $@
+
+install: install-$(dir)
+
+install-$(dir):
+       mkdir -p $(DESTDIR)$(libdir)/
+       install -m0644 $(dir)/$(LIBNAME) $(DESTDIR)$(libdir)/
+       ln -sf $(LIBNAME) $(DESTDIR)$(libdir)/$(SONAME)
+       ln -sf $(LIBNAME) $(DESTDIR)$(libdir)/$(LINKER_NAME)
+       mkdir -p $(DESTDIR)$(includedir)
+       install -m0644 $(dir)/notmuch.h $(DESTDIR)$(includedir)/
 
 SRCS  := $(SRCS) $(libnotmuch_c_srcs) $(libnotmuch_cxx_srcs)
-CLEAN := $(CLEAN) $(libnotmuch_modules) $(dir)/notmuch.a
+CLEAN := $(CLEAN) $(libnotmuch_modules) $(dir)/$(SONAME) $(dir)/$(LINKER_NAME) $(dir)$(LIBNAME) libnotmuch.a