boost.make

BOOST := boost
BOOST_VERS := 1_70_0
BOOST_DIR := $(BOOST)_$(BOOST_VERS)

BOOST_BUILD := $(BUILD_HELPER_DIR)/$(BOOST_DIR)-build
BOOST_INSTALL := $(BUILD_HELPER_DIR)/$(BOOST_DIR)-insatll
BOOST_UNPACK := $(BUILD_HELPER_DIR)/$(BOOST_DIR)-unpack

.PHONY: $(BOOST) $(BOOST)-install $(BOOST)-skel $(BOOST)-clean

$(BOOST): $(BOOST_BUILD)

$(BOOST)-isntall: $(BOOST_INSTALL)

# For some obscure reason (GCC's dual ABI) we have to link all Boost stuff
# statically, otherwise we get linker errors later, e.g.:
#
#    .../packages/boost/destdir/lib/libboost_system.so: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_create(unsigned long&, unsigned long)@GLIBCXX_3.4.21'
#    .../packages/boost/destdir/lib/libboost_system.so: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()@GLIBCXX_3.4.21'
#    .../packages/boost/destdir/lib/libboost_system.so: undefined reference to `operator delete(void*, unsigned long)@CXXABI_1.3.9'
#
# For more details about the dual ABI see:
#
#    https://gcc.gnu.org/onlinedocs/gcc-5.2.0/libstdc++/manual/manual/using_dual_abi.html
#    https://developers.redhat.com/blog/2015/02/05/gcc5-and-the-c11-abi/
B2_LINK_OPTION := "link=static"


$(BOOST_BUILD): $(PYTHON_BUILD) $(RE2_BUILD) $(BOOST_UNPACK)
# basically what part of AC_PROC_CXX does
	@CXX="" ; \
	for PROG in g++-9 clang++-8 g++-8 clang++-7 g++-7 clang++-6.0 clang++-5.0 g++ clang++; do \
	    echo -n "checking for $$PROG... "; SAVED_IFS=$$IFS; IFS=: ; \
	    for DIR in $$PATH; do \
	        IFS=$$SAVED_IFS ; \
	        $(TEST) -z "$$DIR" && DIR=. ; \
	        ABS_PROG="$$DIR/$$PROG" ; \
	        $(TEST) -x "$$ABS_PROG" && { CXX="$$ABS_PROG"; echo "$$CXX"; break 2; } ; \
	    done ; \
	    echo "no"; IFS=$$SAVED_IFS ; \
	done ; \
	$(TEST) -z "$$CXX" && { echo "error: no C++ compiler found" >&2 ; exit 1; } ; \
	echo "using gcc : : $$CXX ;" > $(BOOST_DIR)/tools/build/src/user-config.jam
	( cd $(BOOST_DIR) && \
	  export PYTHONPATH="$$PYTHONPATH:$(PACKAGE_PYTHON_PYTHONPATH)" ; \
	  export LDFLAGS="$(PACKAGE_PYTHON_LDFLAGS)" ; \
	  export LD_LIBRARY_PATH="$(PACKAGE_PYTHON_LD_LIBRARY_PATH)" ; \
	  ./bootstrap.sh \
	    "--prefix=$(PACKAGE_BOOST_DESTDIR)" \
      "--without-libraries=graph,locale,log,math,program_options,regex,serialization,wave" \
	    "--with-python=$(PACKAGE_PYTHON_EXECUTABLE)" && \
	  ./b2 $(B2_LINK_OPTION) cxxflags=-fPIC cflags=-fPIC -j2 install )
	$(TOUCH) $@

$(BOOST_INSTALL): $(BOOST_BUILD)
	$(FIND) $(PACKAGE_BOOST_DESTDIR)/lib -name "*.so*" -exec cp -v {} $(DESTDIR)$(OMD_ROOT)/lib \;
	$(TOUCH) $@

$(BOOST)-skel:

$(BOOST)-clean:
	$(RM) -r $(BOOST_DIR) $(PACKAGE_BOOST_DESTDIR) $(BUILD_HELBER_DIR)/$(BOOST)*