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# 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
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