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libnotmuch: add linker script to declare only notmuch_* symbols as global.

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This is closely tied to gcc and particularly gnu ld, but I guess the
shared library linking code would need to be adjusted to work on a
non-gnu linker anyay.

I had to make a few not-obviously related changes to the
lib/Makefile.local to make this work: libnotmuch_modules is defined
with := and used in place of $^
(cherry picked from commit 014bf85b1c06ff49be2bde5a26433d2cf376cf70)
This commit is contained in:
David Bremner 2011-06-21 21:25:06 -03:00
parent de35a0e7f9
commit cdf1c70ab3
1 changed files with 12 additions and 5 deletions
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17
lib/Makefile.local
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@ -36,7 +36,7 @@ LIBRARY_SUFFIX = so
LINKER_NAME = libnotmuch.$(LIBRARY_SUFFIX)
SONAME = $(LINKER_NAME).$(LIBNOTMUCH_VERSION_MAJOR)
LIBNAME = $(SONAME).$(LIBNOTMUCH_VERSION_MINOR).$(LIBNOTMUCH_VERSION_RELEASE)
LIBRARY_LINK_FLAG = -shared -Wl,-soname=$(SONAME)
LIBRARY_LINK_FLAG = -shared -Wl,--version-script=notmuch.sym,-soname=$(SONAME)
ifeq ($(LIBDIR_IN_LDCONFIG),1)
ifeq ($(DESTDIR),)
LIBRARY_INSTALL_POST_COMMAND=ldconfig
@ -66,13 +66,20 @@ libnotmuch_cxx_srcs = \
$(dir)/query.cc \
$(dir)/thread.cc
libnotmuch_modules = $(libnotmuch_c_srcs:.c=.o) $(libnotmuch_cxx_srcs:.cc=.o)
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)
$(call quiet,CXX $(CXXFLAGS)) $^ $(FINAL_LIBNOTMUCH_LDFLAGS) $(LIBRARY_LINK_FLAG) -o $@
$(dir)/$(LIBNAME): $(libnotmuch_modules) notmuch.sym
echo $(libnotmuch_modules)
$(call quiet,CXX $(CXXFLAGS)) $(libnotmuch_modules) $(FINAL_LIBNOTMUCH_LDFLAGS) $(LIBRARY_LINK_FLAG) -o $@
notmuch.sym: lib/notmuch.h
gcc -aux-info notmuch.aux $<
printf "{\nglobal:\n" > notmuch.sym
sed -n 's/.*\(notmuch_[a-z_]*\) (.*/\t\1;/p' notmuch.aux >> notmuch.sym
printf "local: *;\n};\n" >> notmuch.sym
$(dir)/$(SONAME): $(dir)/$(LIBNAME)
ln -sf $(LIBNAME) $@
@ -96,4 +103,4 @@ install-$(dir): $(dir)/$(LIBNAME)
$(LIBRARY_INSTALL_POST_COMMAND)
SRCS := $(SRCS) $(libnotmuch_c_srcs) $(libnotmuch_cxx_srcs)
CLEAN := $(CLEAN) $(libnotmuch_modules) $(dir)/$(SONAME) $(dir)/$(LINKER_NAME) $(dir)$(LIBNAME) libnotmuch.a
CLEAN := $(CLEAN) $(libnotmuch_modules) $(dir)/$(SONAME) $(dir)/$(LINKER_NAME) $(dir)$(LIBNAME) libnotmuch.a notmuch.aux notmuch.sym