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Diffstat (limited to 'scripts/libtool.mk')
| -rw-r--r-- | scripts/libtool.mk | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/scripts/libtool.mk b/scripts/libtool.mk new file mode 100644 index 0000000..381127e --- /dev/null +++ b/scripts/libtool.mk @@ -0,0 +1,243 @@ +# Copyright 2008, 2009, 2010 Dan Moulding, Alan T. DeKok +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +# +# You can watch what it's doing by: +# +# $ VERBOSE=1 make ... args ... +# +ifeq "${VERBOSE}" "" + Q=@ +else + Q= +endif + +# Add these rules only when LIBTOOL is being used. +ifneq "${LIBTOOL}" "" + + # clang on OSX sometimes doesn't know where things are. <sigh> + ifeq "$(findstring darwin,$(HOSTINFO))" "darwin" + JLIBTOOL_DEFS += -L/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib + endif + +# JLIBTOOL - check if we're using the local (fast) jlibtool, rather +# than the GNU (slow) libtool shell script. If so, add rules +# to build it. + +ifeq "${LIBTOOL}" "JLIBTOOL" + JLIBTOOL := ${BUILD_DIR}/make/jlibtool + + # Add a rule to build jlibtool BEFORE any other targets. This + # means that we can use it to build the later targets. + all install: ${JLIBTOOL} + + # Note that we need to use a compilation rule that does NOT + # include referencing ${LIBTOOL}, as we don't have a jlibtool + # binary! + ${JLIBTOOL}: ${top_makedir}/jlibtool.c + $(Q)mkdir -p $(dir $@) + $(Q)echo CC jlibtool.c + $(Q)${CC} $< -o $@ ${JLIBTOOL_DEFS} + + clean: jlibtool_clean + + .PHONY: jlibtool_clean + jlibtool_clean: + $(Q)rm -f ${JLIBTOOL} + + # Tell GNU Make to use this value, rather than anything specified + # on the command line. + override LIBTOOL := ${JLIBTOOL} +endif # else we're not using jlibtool + +# When using libtool, it produces a '.libs' directory. Ensure that it +# is removed on "make clean", too. +# +clean: .libs_clean + +.PHONY: .libs_clean +.libs_clean: + $(Q)rm -rf ${BUILD_DIR}/.libs/ + +# Re-define compilers and linkers +# +OBJ_EXT = lo +COMPILE.c = ${LIBTOOL} --silent --mode=compile ${CC} +COMPILE.cxx = ${LIBTOOL} --mode=compile ${CXX} +LINK.c = ${LIBTOOL} --silent --mode=link ${CC} +LINK.cxx = ${LIBTOOL} --mode=link ${CXX} +PROGRAM_INSTALL = ${LIBTOOL} --silent --mode=install ${INSTALL} + + +# LIBTOOL_ENDINGS - Given a library ending in ".a" or ".so", replace that +# extension with ".la". +# +define LIBTOOL_ENDINGS +$(patsubst %.a,%.la,$(patsubst %.so,%.la,${1})) +endef + +# ADD_TARGET_RULE.la - Build a ".la" target. +# +# USE WITH EVAL +# +define ADD_TARGET_RULE.la + # So "make ${1}" works + .PHONY: ${1} + ${1}: $${${1}_BUILD}/${1} + + # Create libtool library ${1} + $${${1}_BUILD}/${1}: $${${1}_OBJS} $${${1}_PRLIBS} + $(Q)$(strip mkdir -p $(dir $${${1}_BUILD}/${1})) + @$(ECHO) LINK $${${1}_BUILD}/${1} + $(Q)$${${1}_LINKER} -o $${${1}_BUILD}/${1} $${RPATH_FLAGS} $${LDFLAGS} \ + $${${1}_LDFLAGS} $${${1}_OBJS} $${LDLIBS} $${${1}_LDLIBS} \ + $${${1}_PRLIBS} + $(Q)$${${1}_POSTMAKE} + + ifneq "${ANALYZE.c}" "" + scan.${1}: $${${1}_PLISTS} + endif +endef + +# ADD_LOCAL_RULE.exe - Parametric "function" that adds a rule to build +# a local version of the target. +# +# USE WITH EVAL +# +define ADD_LOCAL_RULE.exe + ${1}: $${${1}_BUILD}/$${LOCAL}${1} + + # used to fix up RPATH for ${1} on install. + $${${1}_BUILD}/$${${1}_LOCAL}: $${${1}_OBJS} $${${1}_PRBIN} $${${1}_LOCAL_PRLIBS} + $(Q)$(strip mkdir -p $${${1}_BUILD}/${LOCAL}/) + $(Q)$${${1}_LINKER} -o $${${1}_BUILD}/$${LOCAL}${1} $${LOCAL_FLAGS} $${LDFLAGS} \ + $${${1}_LDFLAGS} $${${1}_OBJS} $${${1}_LOCAL_PRLIBS} \ + $${LDLIBS} $${${1}_LDLIBS} + $(Q)$${${1}_POSTMAKE} +endef + +# ADD_LOCAL_RULE.la - Parametric "function" that adds a rule to build +# a local version of the target. +# +# USE WITH EVAL +# +define ADD_LOCAL_RULE.la + ${1}: $${${1}_BUILD}/$${LOCAL}${1} + + # used to fix up RPATH for ${1} on install. + $${${1}_BUILD}/$${${1}_LOCAL}: $${${1}_OBJS} $${${1}_LOCAL_PRLIBS} + $(Q)$(strip mkdir -p $${${1}_BUILD}/${LOCAL}/) + $(Q)$${${1}_LINKER} -o $${${1}_BUILD}/$${LOCAL}${1} $${LOCAL_FLAGS} $${LDFLAGS} \ + $${${1}_LDFLAGS} $${${1}_OBJS} $${LDLIBS} $${${1}_LDLIBS} \ + $${${1}_LOCAL_PRLIBS} + $(Q)$${${1}_POSTMAKE} + +endef + +# By default, if libdir is defined, we build shared libraries. +# However, we can disable shared libraries if explicitly told to. +ifneq "${libdir}" "" + ifneq "${bm_shared_libs}" "no" + bm_shared_libs := yes + endif +endif + +# Default to building static libraries, too. +ifneq "${bm_static_libs}" "no" + bm_static_libs := yes +endif + +# Check if we build shared libraries. +ifeq "${bm_shared_libs}" "yes" + LOCAL := local/ + + # RPATH : flags use to build executables that are installed, + # with no dependency on the source. + # RELINL : flags use to build executables that can be run + # from the build directory / source tree. + RPATH_FLAGS := -rpath ${libdir} + LOCAL_FLAGS := -rpath $(subst //,/,$(abspath ${BUILD_DIR})/lib/${LOCAL}/.libs) + + LOCAL_FLAGS_MIN := -rpath ${libdir} + + ifneq "${bm_static_libs}" "yes" + RPATH_FLAGS += --shared + LOCAL_FLAGS += --shared + endif +else + ifneq "${bm_static_libs}" "yes" + $(error Building without static libraries requires you to set 'INSTALL' or 'libdir') + endif + + RPATH_FLAGS := -static +endif + +# UPDATE_TARGET_ENDINGS - Function to turn target into a libtool target +# e.g. "libfoo.a" -> libfoo.la" +# +# If the target is an executable, then its extension doesn't change +# when we use libtool, and we don't do any re-writing. +# +# USE WITH EVAL +# +define ADD_LIBTOOL_SUFFIX + ifneq "$$(call LIBTOOL_ENDINGS,$${TGT})" "$${TGT}" + TGT_NOLIBTOOL := $${TGT} + TGT := $$(call LIBTOOL_ENDINGS,$${TGT}) + $${TGT}_NOLIBTOOL := $${TGT_NOLIBTOOL} + endif + + ifneq "$${LOCAL_FLAGS}" "" + $${TGT}_LOCAL := ${LOCAL}$${TGT} + endif + + # re-write all of the dependencies to have the libtool endings. + TGT_PREREQS := $$(call LIBTOOL_ENDINGS,$${TGT_PREREQS}) +endef + +# ADD_LIBTOOL_TARGET - Function to ensure that the object files depend +# on our jlibtool target. This ensures that jlibtool is built before +# it's used to build the object files. +# +# USE WITH EVAL +# +define ADD_LIBTOOL_TARGET + ifneq "${JLIBTOOL}" "" + $${$${TGT}_OBJS}: $${JLIBTOOL} + endif + + ifneq "$${$${TGT}_NOLIBTOOL}" "" + $$(notdir $${$${TGT}_NOLIBTOOL}): $${TGT} + endif + + # If we need to relink, add the relink targets now. + ifneq "$${$${TGT}_LOCAL}" "" + # add rules to relink the target + + $${TGT}_LOCAL_PRLIBS := $$(subst $${BUILD_DIR}/lib/,$${BUILD_DIR}/lib/${LOCAL},$${$${TGT}_PRLIBS}) + + $$(eval $$(call ADD_LOCAL_RULE$${$${TGT}_SUFFIX},$${TGT})) + + $$(eval $$(call ADD_CLEAN_RULE,$${$${TGT}_LOCAL}_libtool)) + + ifneq "$${$${TGT}_NOLIBTOOL}" "" + $$(eval $$(call ADD_CLEAN_RULE,$${$${TGT}_NOLIBTOOL}_libtool)) + endif + endif + +endef + + +endif |