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Diffstat (limited to 'scripts/boiler.mk')
| -rw-r--r-- | scripts/boiler.mk | 675 |
1 files changed, 675 insertions, 0 deletions
diff --git a/scripts/boiler.mk b/scripts/boiler.mk new file mode 100644 index 0000000..2ce0c18 --- /dev/null +++ b/scripts/boiler.mk @@ -0,0 +1,675 @@ +# boilermake: A reusable, but flexible, boilerplate Makefile. +# +# 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/>. + +# Caution: Don't edit this Makefile! Create your own main.mk and other +# submakefiles, which will be included by this Makefile. +# Only edit this if you need to modify boilermake's behavior (fix +# bugs, add features, etc). + +# Note: Parameterized "functions" in this makefile that are marked with +# "USE WITH EVAL" are only useful in conjuction with eval. This is +# because those functions result in a block of Makefile syntax that must +# be evaluated after expansion. Since they must be used with eval, most +# instances of "$" within them need to be escaped with a second "$" to +# accomodate the double expansion that occurs when eval is invoked. + +# +# You can watch what it's doing by: +# +# $ VERBOSE=1 make ... args ... +# +ifeq "${VERBOSE}" "" + Q=@ +else + Q= +endif + +# ADD_CLEAN_RULE - Parameterized "function" that adds a new rule and phony +# target for cleaning the specified target (removing its build-generated +# files). +# +# USE WITH EVAL +# +define ADD_CLEAN_RULE + clean: clean_$(notdir ${1}) + .PHONY: clean_$(notdir ${1}) + clean_$(notdir ${1}): + $(Q)$(strip rm -f ${${1}_BUILD}/${1} $${${1}_OBJS} $${${1}_DEPS} $${${1}_OBJS:%.${OBJ_EXT}=%.[do]}) $(if ${TARGET_DIR},$${TARGET_DIR}/$(notdir ${1})) + $${${1}_POSTCLEAN} + +endef + +# FILTER_DEPENDS: function to turn a *.d file into a *.mk file. +# We start off with the dependencies as created by the compiler, +# CPP, or makedepend. We then ensure that there is an empty dependency +# for each header file. The blank target ensures that the build +# can proceed even if the header file has been deleted. +# +# COMMON filters: +# remove comments +# remove dependencies on global include files +# remove empty dependencies +# remove CPP hacks like "foo: <built-in>" +# +# 1) Filter the .d file to remove unnecessary cruft +# +# COMMON +# Replace ".o" with "${OBJ_EXT}" +# delete empty continuation lines +# delete blank lines +# replace "build/" with "${BUILD_DIR}/" when it's at the start of a line +# delete references to ${BUILD_DIR}/make/include, the "config.mk" +# file adds these dependencies automatically. +# replace "build/" with "${BUILD_DIR}/" when it's in the middle of a line +# +# remove sequential duplicate lines +# +# 2) Create empty dependencies from the files +# +# COMMON +# remove existing targets +# remove continuations (to make the targets stand by themselves) +# delete blank lines +# add in empty dependency for each file. +# remove sequential duplicate lines +# +define FILTER_DEPENDS + $(Q)mkdir -p $$(dir $${BUILD_DIR}/make/src/$$*) + $(Q)mkdir -p $$(dir $${BUILD_DIR}/objs/$$*) + $(Q)sed -e 's/#.*//' \ + -e 's,^$${top_srcdir},$$$${top_srcdir},' \ + -e 's, $${top_srcdir}, $$$${top_srcdir},' \ + -e 's,^$${BUILD_DIR},$$$${BUILD_DIR},' \ + -e 's, $${BUILD_DIR}/make/include/[^ :]*,,' \ + -e 's, $${BUILD_DIR}, $$$${BUILD_DIR},' \ + -e 's, /[^: ]*,,g' \ + -e 's,^ *[^:]* *: *$$$$,,' \ + -e '/: </ d' \ + -e 's/\.o: /.$$$${OBJ_EXT}: /' \ + -e '/^ *\\$$$$/ d' \ + < $${BUILD_DIR}/objs/$$*.d | sed -e '$$$$!N; /^\(.*\)\n\1$$$$/!P; D' \ + > $${BUILD_DIR}/make/src/$$*.mk + $(Q)sed -e 's/#.*//' \ + -e 's, $${BUILD_DIR}/make/include/[^ :]*,,' \ + -e 's, /[^: ]*,,g' \ + -e 's,^ *[^:]* *: *$$$$,,' \ + -e '/: </ d' \ + -e 's/^[^:]*: *//' \ + -e 's/ *\\$$$$//' \ + -e 's/$$$$/ :/' \ + < $${BUILD_DIR}/objs/$$*.d | sed -e '$$$$!N; /^\(.*\)\n\1$$$$/!P; D' \ + >> $${BUILD_DIR}/make/src/$$*.mk + @rm -f $${BUILD_DIR}/objs/$$*.d +endef + +# ADD_OBJECT_RULE - Parameterized "function" that adds a pattern rule, using +# the commands from the second argument, for building object files from +# source files with the filename extension specified in the first argument. +# +# This function assumes that the C/C++ sources files have filenames +# *relative* to the source root. If they have absolute pathnames, it +# creates the wrong filenames... +# +# USE WITH EVAL +# +ifeq "${CPP_MAKEDEPEND}" "yes" +define ADD_OBJECT_RULE +$${BUILD_DIR}/objs/%.${OBJ_EXT} $${BUILD_DIR}/objs/%.d: ${1} | ${BOOTSTRAP_BUILD} + ${2} + $${CPP} $${CPPFLAGS} $$(addprefix -I,$${SRC_INCDIRS}) $${SRC_DEFS} $$< | sed \ + -n 's,^\# *[0-9][0-9]* *"\([^"]*\)".*,$$@: \1,p' > $${BUILD_DIR}/objs/$$*.d +${FILTER_DEPENDS} +endef + +else +define ADD_OBJECT_RULE +$${BUILD_DIR}/objs/%.${OBJ_EXT} $${BUILD_DIR}/objs/%.d: ${1} | ${BOOTSTRAP_BUILD} + ${2} +${FILTER_DEPENDS} +endef +endif + +define ADD_ANALYZE_RULE +$${BUILD_DIR}/plist/%.plist: ${1} + ${2} +endef + +# ADD_TARGET_DIR - Parameterized "function" that makes a link from +# TARGET_DIR to the executable or library in the BUILD_DIR directory. +# +# USE WITH EVAL +# +ifneq "${TARGET_DIR}" "" + define ADD_TARGET_DIR + all: $${TARGET_DIR}/$$(notdir ${1}) + + $${TARGET_DIR}/$$(notdir ${1}): ${1} + [ -f $${TARGET_DIR}/$$(notdir ${1}) ] || ln -s ${1} $${TARGET_DIR}/$$(notdir ${1}) + + endef +endif + +# ADD_TARGET_TO_ALL - Parameterized "function" that adds the target, +# and makes "all" depend on it. +# +# USE WITH EVAL +# +define ADD_TARGET_TO_ALL + all: ${1} + +endef + +# ADD_TARGET_RULE.* - Parameterized "functions" that adds a new target to the +# Makefile. There should be one ADD_TARGET_RULE definition for each +# type of target that is used in the build. +# +# New rules can be added by copying one of the existing ones, and +# replacing the line after the "mkdir" +# + +# ADD_TARGET_RULE.exe - Build an executable target. +# +# USE WITH EVAL +# +define ADD_TARGET_RULE.exe + # So "make ${1}" works + .PHONY: ${1} + ${1}: $${${1}_BUILD}/${1} + + # Create executable ${1} + $${${1}_BUILD}/${1}: $${${1}_OBJS} $${${1}_PRBIN} $${${1}_PRLIBS} + $(Q)$(strip mkdir -p $(dir $${${1}_BUILD}/${1})) + $(Q)$(ECHO) LINK $${${1}_BUILD}/${1} + $(Q)$${${1}_LINKER} -o $${${1}_BUILD}/${1} $${RPATH_FLAGS} $${LDFLAGS} \ + $${${1}_LDFLAGS} $${${1}_OBJS} $${${1}_PRLIBS} \ + $${LDLIBS} $${${1}_LDLIBS} + $(Q)$${${1}_POSTMAKE} + + ifneq "${ANALYZE.c}" "" + scan.${1}: $${${1}_PLISTS} + endif + + .PHONY: $(DIR) + $(DIR)/: ${1} +endef + +# ADD_TARGET_RULE.a - Build a static library target. +# +# USE WITH EVAL +# +define ADD_TARGET_RULE.a + # So "make ${1}" works + .PHONY: ${1} + ${1}: $${${1}_BUILD}/${1} + + # Create static library ${1} + $${${1}_BUILD}/${1}: $${${1}_OBJS} $${${1}_PRLIBS} + $(Q)$(strip mkdir -p $(dir $${${1}_BUILD}/${1})) + $(Q)$(ECHO) LINK $${${1}_BUILD}/${1} + $(Q)$${AR} $${ARFLAGS} $${${1}_BUILD}/${1} $${${1}_OBJS} + $(Q)$${${1}_POSTMAKE} + + ifneq "${ANALYZE.c}" "" + scan.${1}: $${${1}_PLISTS} + endif + + .PHONY: $(DIR) + $(DIR)/: ${1} +endef + +# ADD_TARGET_RULE.so - Build a ".so" target. +# +# USE WITH EVAL +# +define ADD_TARGET_RULE.so +$(error Please add rules to build a ".so" file.) +endef + +# ADD_TARGET_RULE.dll - Build a ".dll" target. +# +# USE WITH EVAL +# +define ADD_TARGET_RULE.dll +$(error Please add rules to build a ".dll" file.) +endef + +# ADD_TARGET_RULE.dylib - Build a ".dylib" target. +# +# USE WITH EVAL +# +define ADD_TARGET_RULE.dylib +$(error Please add rules to build a ".dylib" file.) +endef + +# CANONICAL_PATH - Given one or more paths, converts the paths to the canonical +# form. The canonical form is the path, relative to the project's top-level +# directory (the directory from which "make" is run), and without +# any "./" or "../" sequences. For paths that are not located below the +# top-level directory, the canonical form is the absolute path (i.e. from +# the root of the filesystem) also without "./" or "../" sequences. +define CANONICAL_PATH +$(patsubst ${CURDIR}/%,%,$(abspath ${1})) +endef + +# COMPILE_C_CMDS - Commands for compiling C source code. +ifeq "$(CPPCHECK)" "" +define COMPILE_C_CMDS + $(Q)mkdir -p $(dir $@) + $(Q)$(ECHO) CC $< + $(Q)$(strip ${COMPILE.c} -o $@ -c -MD ${CPPFLAGS} ${CFLAGS} ${SRC_CFLAGS} ${INCDIRS} \ + $(addprefix -I, ${SRC_INCDIRS}) ${SRC_DEFS} ${DEFS} $<) +endef +else +# +# do cppcheck AND compilation, so that we have correct dependencies +# Suppress variable scope warnings for now. They're style, and don't really +# affect anything. +# +define COMPILE_C_CMDS + $(Q)mkdir -p $(dir $@) + $(Q)$(ECHO) CC $< + $(Q)$(strip ${COMPILE.c} -o $@ -c -MD ${CPPFLAGS} ${CFLAGS} ${SRC_CFLAGS} ${INCDIRS} \ + $(addprefix -I,${SRC_INCDIRS}) ${SRC_DEFS} ${DEFS} $<) + $(Q)cppcheck --enable=style -q ${CHECKFLAGS} $(filter -isystem%,${SRC_CFLAGS}) \ + $(filter -I%,${SRC_CFLAGS}) $(filter -D%,${SRC_CFLAGS}) ${INCDIRS} \ + $(addprefix -I,${SRC_INCDIRS}) ${SRC_DEFS} ${DEFS} --suppress=variableScope --suppress=invalidscanf $< +endef +endif + +# ANALYZE_C_CMDS - Commands for analyzing C source code with clang. +define ANALYZE_C_CMDS + $(Q)mkdir -p $(dir $@) + $(Q)$(ECHO) SCAN $< + $(Q)$(strip ${ANALYZE.c} --analyze -Xanalyzer -analyzer-output=html -c $< -o $@ ${CPPFLAGS} \ + ${CFLAGS} ${SRC_CFLAGS} ${INCDIRS} $(addprefix -I,${SRC_INCDIRS}) ${SRC_DEFS} ${DEFS}) || (rm -f $@ && false) + $(Q)touch $@ +endef + +# COMPILE_CXX_CMDS - Commands for compiling C++ source code. +define COMPILE_CXX_CMDS + $(Q)mkdir -p $(dir $@) + $(Q)$(strip ${COMPILE.cxx} -o $@ -c -MD ${CPPFLAGS} ${CXXFLAGS} ${SRC_CXXFLAGS} ${INCDIRS} \ + $(addprefix -I,${SRC_INCDIRS}) ${SRC_DEFS} ${DEFS} $<) +endef + +# INCLUDE_SUBMAKEFILE - Parameterized "function" that includes a new +# "submakefile" fragment into the overall Makefile. It also recursively +# includes all submakefiles of the specified submakefile fragment. +# +# USE WITH EVAL +# +define INCLUDE_SUBMAKEFILE + # Initialize all variables that can be defined by a makefile fragment, then + # include the specified makefile fragment. + TARGET := + TGT_LDFLAGS := + TGT_LDLIBS := + TGT_LINKER := + TGT_POSTCLEAN := + TGT_POSTMAKE := + TGT_PREREQS := + TGT_POSTINSTALL := + TGT_INSTALLDIR := .. + TGT_CHECK_HEADERS := + TGT_CHECK_LIBS := + TEST := + + SOURCES := + SRC_CFLAGS := + SRC_CXXFLAGS := + SRC_DEFS := + SRC_INCDIRS := + MAN := + FILES := + OUTPUT := + + SUBMAKEFILES := + + # A directory stack is maintained so that the correct paths are used as we + # recursively include all submakefiles. Get the makefile's directory and + # push it onto the stack. + DIR := $(call CANONICAL_PATH,$(dir ${1})) + DIR_STACK := $$(call PUSH,$${DIR_STACK},$${DIR}) + + include ${1} + + # Initialize internal local variables. + OBJS := + + # Determine which target this makefile's variables apply to. A stack is + # used to keep track of which target is the "current" target as we + # recursively include other submakefiles. + ifneq "$$(strip $${TARGET})" "" + # This makefile defined a new target. Target variables defined by this + # makefile apply to this new target. Initialize the target's variables. + + # libs go into ${BUILD_DIR}/lib + # everything else goes into ${BUILD_DIR}/bin +# TGT := $$(strip $$(if $$(suffix $${TARGET}),$${BUILD_DIR}/lib,$${BUILD_DIR}/bin)/$${TARGET}) + TGT := $${TARGET} + + # A "hook" to rewrite "libfoo.a" -> "libfoo.la" when using libtool + $$(eval $$(call ADD_LIBTOOL_SUFFIX)) + + ALL_TGTS += $${TGT} + $${TGT}_LDFLAGS := $${TGT_LDFLAGS} + $${TGT}_LDLIBS := $${TGT_LDLIBS} + $${TGT}_LINKER := $${TGT_LINKER} + $${TGT}_POSTMAKE := $${TGT_POSTMAKE} + $${TGT}_POSTCLEAN := $${TGT_POSTCLEAN} + $${TGT}_POSTINSTALL := $${TGT_POSTINSTALL} + $${TGT}_PREREQS := $${TGT_PREREQS} + $${TGT}_PRBIN := $$(addprefix $${BUILD_DIR}/bin/,$$(filter-out %.a %.so %.la,$${TGT_PREREQS})) + $${TGT}_PRLIBS := $$(addprefix $${BUILD_DIR}/lib/,$$(filter %.a %.so %.la,$${TGT_PREREQS})) + $${TGT}_DEPS := + $${TGT}_OBJS := + $${TGT}_SOURCES := + $${TGT}_MAN := $${MAN} + $${TGT}_SUFFIX := $$(if $$(suffix $${TGT}),$$(suffix $${TGT}),.exe) + + # If it's an EXE, ensure that transitive library linking works. + # i.e. we build libfoo.a which in turn requires -lbar. So, the executable + # has to be linked to both libfoo.a and -lbar. + ifeq "$${$${TGT}_SUFFIX}" ".exe" + $${TGT}_LDLIBS += $$(filter-out %.a %.so %.la,$${$${TGT_PREREQS}_LDLIBS}) + endif + + $${TGT}_BUILD := $$(if $$(suffix $${TGT}),$${BUILD_DIR}/lib,$${BUILD_DIR}/bin) + $${TGT}_MAKEFILES += ${1} + $${TGT}_CHECK_HEADERS := $${TGT_CHECK_HEADERS} + $${TGT}_CHECK_LIBS := $${TGT_CHECK_LIBS} + else + # The values defined by this makefile apply to the the "current" target + # as determined by which target is at the top of the stack. + TGT := $$(strip $$(call PEEK,$${TGT_STACK})) + $${TGT}_LDFLAGS += $${TGT_LDFLAGS} + $${TGT}_LDLIBS += $${TGT_LDLIBS} + $${TGT}_POSTCLEAN += $${TGT_POSTCLEAN} + $${TGT}_POSTMAKE += $${TGT_POSTMAKE} + $${TGT}_PREREQS += $${TGT_PREREQS} + endif + + # Push the current target onto the target stack. + TGT_STACK := $$(call PUSH,$${TGT_STACK},$${TGT}) + + # If there's no target, don't build the sources. + ifneq "$$(strip $${TARGET})" "" + + # if there's no sources, don't do the automatic object build + ifneq "$$(strip $${SOURCES})" "" + # This makefile builds one or more objects from source. Validate the + # specified sources against the supported source file types. + BAD_SRCS := $$(strip $$(filter-out $${ALL_SRC_EXTS},$${SOURCES})) + ifneq "$${BAD_SRCS}" "" + $$(error Unsupported source file(s) found in ${1} [$${BAD_SRCS}]) + endif + + # Qualify and canonicalize paths. + SOURCES := $$(call QUALIFY_PATH,$${DIR},$${SOURCES}) + SOURCES := $$(call CANONICAL_PATH,$${SOURCES}) + SRC_INCDIRS := $$(call QUALIFY_PATH,$${DIR},$${SRC_INCDIRS}) + SRC_INCDIRS := $$(call CANONICAL_PATH,$${SRC_INCDIRS}) + + # Save the list of source files for this target. + $${TGT}_SOURCES += $${SOURCES} + + # Convert the source file names to their corresponding object file + # names. + OBJS := $$(addprefix $${BUILD_DIR}/objs/,\ + $$(addsuffix .${OBJ_EXT},$$(basename $${SOURCES}))) + + PLISTS := $$(addprefix $${BUILD_DIR}/plist/,\ + $$(addsuffix .plist,$$(basename $${SOURCES}))) + ALL_PLISTS += ${PLISTS} + + # Add the objects to the current target's list of objects, and create + # target-specific variables for the objects based on any source + # variables that were defined. + $${TGT}_OBJS += $${OBJS} + $${TGT}_PLISTS += $${PLISTS} + $${TGT}_DEPS += $$(addprefix $${BUILD_DIR}/make/src/,\ + $$(addsuffix .mk,$$(basename $${SOURCES}))) + + # A "hook" to define variables needed by the "legacy" makefiles. + $$(eval $$(call ADD_LEGACY_VARIABLES,$$(dir ${1}),$${TGT})) + + $${OBJS}: SRC_CFLAGS := $${SRC_CFLAGS} + $${OBJS}: SRC_CXXFLAGS := $${SRC_CXXFLAGS} + $${OBJS}: SRC_DEFS := $$(addprefix -D,$${SRC_DEFS}) + $${OBJS}: SRC_INCDIRS := $${SRC_INCDIRS} + $${OBJS}: ${1} + + $${PLISTS}: SRC_CFLAGS := $${SRC_CFLAGS} + $${PLISTS}: SRC_CXXFLAGS := $${SRC_CXXFLAGS} + $${PLISTS}: SRC_DEFS := $$(addprefix -D,$${SRC_DEFS}) + $${PLISTS}: SRC_INCDIRS := $${SRC_INCDIRS} + $${PLISTS}: ${1} + endif + endif + + ifneq "$$(strip $${SUBMAKEFILES})" "" + # This makefile has submakefiles. Recursively include them. + $$(foreach MK,$${SUBMAKEFILES},\ + $$(eval $$(call INCLUDE_SUBMAKEFILE,\ + $$(call CANONICAL_PATH,\ + $$(call QUALIFY_PATH,$${DIR},$${MK}))))) + endif + + # Reset the "current" target to it's previous value. + TGT_STACK := $$(call POP,$${TGT_STACK}) + # If we're about to change targets, create the rules for the target + ifneq "$${TGT}" "$$(call PEEK,$${TGT_STACK})" + # add rules to build the target, and have "all" depend on it. + $$(eval $$(call ADD_TARGET_TO_ALL,$${TGT})) + + # A "hook" to add rules for ${TARGET_DIR}/foo, if TARGET_DIR + # is defined. Otherwise, we leave the source directory untouched. + $$(eval $$(call ADD_TARGET_DIR,$${TGT})) + + # A "hook" to build the libtool target. + $$(eval $$(call ADD_LIBTOOL_TARGET)) + + # Choose the correct linker. + ifeq "$$(strip $$(filter $${CXX_SRC_EXTS},$${$${TGT}_SOURCES}))" "" + ifeq "$${$${TGT}_LINKER}" "" + $${TGT}_LINKER := ${LL}$${LINK.c} + endif + else + ifeq "$${$${TGT}_LINKER}" "" + $${TGT}_LINKER := ${LL}$${LINK.cxx} + endif + endif + + # add rules to build the target + $$(eval $$(call ADD_TARGET_RULE$${$${TGT}_SUFFIX},$${TGT})) + + # generate the clean rule for this target. + $$(eval $$(call ADD_CLEAN_RULE,$${TGT})) + + # Hook to add an installation target + $$(eval $$(call ADD_INSTALL_TARGET,$${TGT})) + + # Hook to add a configuration target + $$(eval $$(call ADD_TARGET_CONFIG,$${TGT})) + + # "hook" for legacy Makefiles + $$(eval $$(call ADD_LEGACY_RULE,$${TGT})) + endif + + TGT := $$(call PEEK,$${TGT_STACK}) + + # Reset the "current" directory to it's previous value. + DIR_STACK := $$(call POP,$${DIR_STACK}) + DIR := $$(call PEEK,$${DIR_STACK}) +endef + +# MIN - Parameterized "function" that results in the minimum lexical value of +# the two values given. +define MIN +$(firstword $(sort ${1} ${2})) +endef + +# PEEK - Parameterized "function" that results in the value at the top of the +# specified colon-delimited stack. +define PEEK +$(lastword $(subst :, ,${1})) +endef + +# POP - Parameterized "function" that pops the top value off of the specified +# colon-delimited stack, and results in the new value of the stack. Note that +# the popped value cannot be obtained using this function; use peek for that. +define POP +${1:%:$(lastword $(subst :, ,${1}))=%} +endef + +# PUSH - Parameterized "function" that pushes a value onto the specified colon- +# delimited stack, and results in the new value of the stack. +define PUSH +${2:%=${1}:%} +endef + +# QUALIFY_PATH - Given a "root" directory and one or more paths, qualifies the +# paths using the "root" directory (i.e. appends the root directory name to +# the paths) except for paths that are absolute. +define QUALIFY_PATH +$(addprefix ${1}/,$(filter-out /%,${2})) $(filter /%,${2}) +endef + +############################################################################### +# +# Start of Makefile Evaluation +# +############################################################################### + +# Older versions of GNU Make lack capabilities needed by boilermake. +# With older versions, "make" may simply output "nothing to do", likely leading +# to confusion. To avoid this, check the version of GNU make up-front and +# inform the user if their version of make doesn't meet the minimum required. +MIN_MAKE_VERSION := 3.81 +MIN_MAKE_VER_MSG := boilermake requires GNU Make ${MIN_MAKE_VERSION} or greater +ifeq "${MAKE_VERSION}" "" + $(info GNU Make not detected) + $(error ${MIN_MAKE_VER_MSG}) +endif +ifneq "${MIN_MAKE_VERSION}" "$(call MIN,${MIN_MAKE_VERSION},${MAKE_VERSION})" + $(info This is GNU Make version ${MAKE_VERSION}) + $(error ${MIN_MAKE_VER_MSG}) +endif + +# Define the source file extensions that we know how to handle. +OBJ_EXT := o +C_SRC_EXTS := %.c +CXX_SRC_EXTS := %.C %.cc %.cp %.cpp %.CPP %.cxx %.c++ +ALL_SRC_EXTS := ${C_SRC_EXTS} ${CXX_SRC_EXTS} + +# Initialize global variables. +ALL_TGTS := +DEFS := +DIR_STACK := +INCDIRS := +TGT_STACK := + +ifeq "${top_builddir}" "" + top_builddir := . +endif + +# Ensure that valid values are set for BUILD_DIR +ifeq "$(strip ${BUILD_DIR})" "" + ifeq "${top_builddir}" "${PWD}" + BUILD_DIR := build + else + BUILD_DIR := ${top_builddir}/build + endif +else + BUILD_DIR := $(call CANONICAL_PATH,${BUILD_DIR}) +endif + +.PHONY: $(BUILD_DIR) +$(BUILD_DIR): + @mkdir -p $@ + +# Define compilers and linkers +# +BOOTSTRAP_BUILD = +COMPILE.c = ${CC} +COMPILE.cxx = ${CXX} +CPP = cc -E +LINK.c = ${CC} +LINK.cxx = ${CXX} + +# Set ECHO to "true" for *very* quiet builds +ECHO = echo + +# Define the "all" target (which simply builds all user-defined targets) as the +# default goal. +.PHONY: all +all: + +# Add "clean" rules to remove all build-generated files. +.PHONY: clean +clean: + +top_makedir := $(dir $(lastword ${MAKEFILE_LIST})) + +-include ${top_makedir}/install.mk +-include ${top_makedir}/libtool.mk + +ifneq "${CPPCHECK}" "" +CHECKFLAGS := -DCPPCHECK $(filter -isystem%,$(CPPFLAGS) $(CFLAGS)) $(filter -I%,$(CPPFLAGS) $(CFLAGS)) $(filter -D%,$(CPPFLAGS) $(CFLAGS)) +endif + +# Include the main user-supplied submakefile. This also recursively includes +# all other user-supplied submakefiles. +$(eval $(call INCLUDE_SUBMAKEFILE,${top_builddir}/main.mk)) + +# Perform post-processing on global variables as needed. +DEFS := $(addprefix -D,${DEFS}) +INCDIRS := $(addprefix -I,$(call CANONICAL_PATH,${INCDIRS})) + +# Add pattern rule(s) for creating compiled object code from C source. +$(foreach EXT,${C_SRC_EXTS},\ + $(eval $(call ADD_OBJECT_RULE,${EXT},$${COMPILE_C_CMDS}))) + +ifneq "${ANALYZE.c}" "" +$(foreach EXT,${C_SRC_EXTS},\ + $(eval $(call ADD_ANALYZE_RULE,${EXT},$${ANALYZE_C_CMDS}))) +endif + +# Add pattern rule(s) for creating compiled object code from C++ source. +$(foreach EXT,${CXX_SRC_EXTS},\ + $(eval $(call ADD_OBJECT_RULE,${EXT},$${COMPILE_CXX_CMDS}))) + +# Don't include the target dependencies if we're doing a "make clean" +# Future: have a list of targets that don't require dependency generation, +# and see if MAKECMDGOALS is one of them. +ifneq "$(MAKECMDGOALS)" "clean" + $(foreach TGT,${ALL_TGTS},\ + $(eval -include ${${TGT}_DEPS})) +endif + +# Build rules for installation subdirectories +$(foreach D,$(patsubst %/,%,$(sort $(dir ${ALL_INSTALL}))),\ + $(eval $(call ADD_INSTALL_RULE.dir,${D}))) + + +scan: ${ALL_PLISTS} + +.PHONY: clean.scan +clean.scan: + $(Q)rm -rf ${ALL_PLISTS} + +clean: clean.scan |