notmuch/lib/Makefile.local
J. Lewis Muir ee2d490280 lib: make notmuch shared library install_name be full path on Mac OS X
The install_name of libnotmuch.dylib on Mac OS X is what is written
into a program that links against it.  If it is just the name of the
shared library file, as opposed to the full path, the program won't be
able to find it when it runs and will abort.  Instead, the install_name
should be the full path to the shared library (in its final installed
location).

Why does Notmuch work without this patch when installed via Homebrew?
The answer is twofold.  One, /usr/local/lib is a special location in
which the dynamic linker will look by default to find shared libraries.
Homebrew highly recommends installing to /usr/local, and, assuming it
has been configured this way, the Notmuch library will end up installed
in /usr/local/lib, and the dynamic linker will find it.  Two, Homebrew
globally corrects all install names in dynamically shared libraries and
binaries for each package it installs.  So, even if the install names in
a package's binaries and libraries are incorrect, Homebrew corrects them
automatically, and no one ever knows.

Why does Notmuch work without this patch when installed via MacPorts?
The answer is that MacPorts applies a patch just like this patch to fix
the same problem.
2015-03-06 08:00:18 +01:00

105 lines
3.8 KiB
Makefile

# -*- 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).
#
LIBNOTMUCH_VERSION_MAJOR = 4
# The minor version of the library interface. This should be incremented at
# the time of release for any additions to the library interface,
# (and when it is incremented, the release version of the library should
# be reset to 0).
LIBNOTMUCH_VERSION_MINOR = 2
# 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
# Note: Don't forget to change the VERSION macros in notmuch.h when
# any of the above change.
ifeq ($(PLATFORM),MACOSX)
LIBRARY_SUFFIX = dylib
# On OS X, library version numbers go before suffix.
LINKER_NAME = libnotmuch.$(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 = -dynamiclib -install_name $(libdir)/$(SONAME) -compatibility_version $(LIBNOTMUCH_VERSION_MAJOR).$(LIBNOTMUCH_VERSION_MINOR) -current_version $(LIBNOTMUCH_VERSION_MAJOR).$(LIBNOTMUCH_VERSION_MINOR).$(LIBNOTMUCH_VERSION_RELEASE)
else
LIBRARY_SUFFIX = so
LINKER_NAME = libnotmuch.$(LIBRARY_SUFFIX)
SONAME = $(LINKER_NAME).$(LIBNOTMUCH_VERSION_MAJOR)
LIBNAME = $(SONAME).$(LIBNOTMUCH_VERSION_MINOR).$(LIBNOTMUCH_VERSION_RELEASE)
LIBRARY_LINK_FLAG = -shared -Wl,--version-script=notmuch.sym,-soname=$(SONAME) -Wl,--no-undefined
ifeq ($(PLATFORM),OPENBSD)
LIBRARY_LINK_FLAG += -lc
endif
ifeq ($(LIBDIR_IN_LDCONFIG),1)
ifeq ($(DESTDIR),)
LIBRARY_INSTALL_POST_COMMAND=ldconfig
endif
endif
endif
dir := lib
extra_cflags += -I$(srcdir)/$(dir) -fPIC
# The (often-reused) $dir works fine within targets/prerequisites,
# but cannot be used reliably within commands, so copy its value to a
# variable that is not reused.
lib := $(dir)
libnotmuch_c_srcs = \
$(notmuch_compat_srcs) \
$(dir)/filenames.c \
$(dir)/string-list.c \
$(dir)/libsha1.c \
$(dir)/message-file.c \
$(dir)/messages.c \
$(dir)/sha1.c \
$(dir)/tags.c
libnotmuch_cxx_srcs = \
$(dir)/database.cc \
$(dir)/parse-time-vrp.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)/libnotmuch.a: $(libnotmuch_modules)
$(call quiet,AR) rcs $@ $^
$(dir)/$(LIBNAME): $(libnotmuch_modules) notmuch.sym util/libutil.a parse-time-string/libparse-time-string.a
$(call quiet,CXX $(CXXFLAGS)) $(libnotmuch_modules) $(FINAL_LIBNOTMUCH_LDFLAGS) $(LIBRARY_LINK_FLAG) -o $@ util/libutil.a parse-time-string/libparse-time-string.a
notmuch.sym: $(srcdir)/$(dir)/notmuch.h $(libnotmuch_modules)
sh $(srcdir)/$(lib)/gen-version-script.sh $< $(libnotmuch_modules) > $@
$(dir)/$(SONAME): $(dir)/$(LIBNAME)
ln -sf $(LIBNAME) $@
$(dir)/$(LINKER_NAME): $(dir)/$(SONAME)
ln -sf $(LIBNAME) $@
install: install-$(dir)
install-$(dir): $(dir)/$(LIBNAME)
mkdir -p "$(DESTDIR)$(libdir)/"
install -m0644 "$(lib)/$(LIBNAME)" "$(DESTDIR)$(libdir)/"
ln -sf $(LIBNAME) "$(DESTDIR)$(libdir)/$(SONAME)"
ln -sf $(LIBNAME) "$(DESTDIR)$(libdir)/$(LINKER_NAME)"
mkdir -p "$(DESTDIR)$(includedir)"
install -m0644 "$(srcdir)/$(lib)/notmuch.h" "$(DESTDIR)$(includedir)/"
$(LIBRARY_INSTALL_POST_COMMAND)
SRCS := $(SRCS) $(libnotmuch_c_srcs) $(libnotmuch_cxx_srcs)
CLEAN += $(libnotmuch_modules) $(dir)/$(SONAME) $(dir)/$(LINKER_NAME)
CLEAN += $(dir)/$(LIBNAME) $(dir)/libnotmuch.a notmuch.sym
CLEAN += $(dir)/notmuch.h.gch