# We borrow heavily from the kernel build setup, though we are simpler since # we don't have Kconfig tweaking settings on us. # The implicit make rules have it looking for RCS files, among other things. # We instead explicitly write all the rules we care about. # It's even quicker (saves ~200ms) to pass -r on the command line. MAKEFLAGS=-r # The source directory tree. srcdir := .. abs_srcdir := $(abspath $(srcdir)) # The name of the builddir. builddir_name ?= . # The V=1 flag on command line makes us verbosely print command lines. ifdef V quiet= else quiet=quiet_ endif # Specify BUILDTYPE=Release on the command line for a release build. BUILDTYPE ?= Release # Directory all our build output goes into. # Note that this must be two directories beneath src/ for unit tests to pass, # as they reach into the src/ directory for data with relative paths. builddir ?= $(builddir_name)/$(BUILDTYPE) abs_builddir := $(abspath $(builddir)) depsdir := $(builddir)/.deps # Object output directory. obj := $(builddir)/obj abs_obj := $(abspath $(obj)) # We build up a list of every single one of the targets so we can slurp in the # generated dependency rule Makefiles in one pass. all_deps := CC.target ?= $(CC) CFLAGS.target ?= $(CPPFLAGS) $(CFLAGS) CXX.target ?= $(CXX) CXXFLAGS.target ?= $(CPPFLAGS) $(CXXFLAGS) LINK.target ?= $(LINK) LDFLAGS.target ?= $(LDFLAGS) AR.target ?= $(AR) # C++ apps need to be linked with g++. LINK ?= $(CXX.target) # TODO(evan): move all cross-compilation logic to gyp-time so we don't need # to replicate this environment fallback in make as well. CC.host ?= gcc CFLAGS.host ?= $(CPPFLAGS_host) $(CFLAGS_host) CXX.host ?= g++ CXXFLAGS.host ?= $(CPPFLAGS_host) $(CXXFLAGS_host) LINK.host ?= $(CXX.host) LDFLAGS.host ?= AR.host ?= ar # Define a dir function that can handle spaces. # http://www.gnu.org/software/make/manual/make.html#Syntax-of-Functions # "leading spaces cannot appear in the text of the first argument as written. # These characters can be put into the argument value by variable substitution." empty := space := $(empty) $(empty) # http://stackoverflow.com/questions/1189781/using-make-dir-or-notdir-on-a-path-with-spaces replace_spaces = $(subst $(space),?,$1) unreplace_spaces = $(subst ?,$(space),$1) dirx = $(call unreplace_spaces,$(dir $(call replace_spaces,$1))) # Flags to make gcc output dependency info. Note that you need to be # careful here to use the flags that ccache and distcc can understand. # We write to a dep file on the side first and then rename at the end # so we can't end up with a broken dep file. depfile = $(depsdir)/$(call replace_spaces,$@).d DEPFLAGS = -MMD -MF $(depfile).raw # We have to fixup the deps output in a few ways. # (1) the file output should mention the proper .o file. # ccache or distcc lose the path to the target, so we convert a rule of # the form: # foobar.o: DEP1 DEP2 # into # path/to/foobar.o: DEP1 DEP2 # (2) we want missing files not to cause us to fail to build. # We want to rewrite # foobar.o: DEP1 DEP2 \ # DEP3 # to # DEP1: # DEP2: # DEP3: # so if the files are missing, they're just considered phony rules. # We have to do some pretty insane escaping to get those backslashes # and dollar signs past make, the shell, and sed at the same time. # Doesn't work with spaces, but that's fine: .d files have spaces in # their names replaced with other characters. define fixup_dep # The depfile may not exist if the input file didn't have any #includes. touch $(depfile).raw # Fixup path as in (1). sed -e "s|^$(notdir $@)|$@|" $(depfile).raw >> $(depfile) # Add extra rules as in (2). # We remove slashes and replace spaces with new lines; # remove blank lines; # delete the first line and append a colon to the remaining lines. sed -e 's|\\||' -e 'y| |\n|' $(depfile).raw |\ grep -v '^$$' |\ sed -e 1d -e 's|$$|:|' \ >> $(depfile) rm $(depfile).raw endef # Command definitions: # - cmd_foo is the actual command to run; # - quiet_cmd_foo is the brief-output summary of the command. quiet_cmd_cc = CC($(TOOLSET)) $@ cmd_cc = $(CC.$(TOOLSET)) $(GYP_CFLAGS) $(DEPFLAGS) $(CFLAGS.$(TOOLSET)) -c -o $@ $< quiet_cmd_cxx = CXX($(TOOLSET)) $@ cmd_cxx = $(CXX.$(TOOLSET)) $(GYP_CXXFLAGS) $(DEPFLAGS) $(CXXFLAGS.$(TOOLSET)) -c -o $@ $< quiet_cmd_touch = TOUCH $@ cmd_touch = touch $@ quiet_cmd_copy = COPY $@ # send stderr to /dev/null to ignore messages when linking directories. cmd_copy = rm -rf "$@" && cp -af "$<" "$@" quiet_cmd_alink = AR($(TOOLSET)) $@ cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) crs $@ $(filter %.o,$^) quiet_cmd_alink_thin = AR($(TOOLSET)) $@ cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) crsT $@ $(filter %.o,$^) # Due to circular dependencies between libraries :(, we wrap the # special "figure out circular dependencies" flags around the entire # input list during linking. quiet_cmd_link = LINK($(TOOLSET)) $@ cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ -Wl,--start-group $(LD_INPUTS) -Wl,--end-group $(LIBS) # We support two kinds of shared objects (.so): # 1) shared_library, which is just bundling together many dependent libraries # into a link line. # 2) loadable_module, which is generating a module intended for dlopen(). # # They differ only slightly: # In the former case, we want to package all dependent code into the .so. # In the latter case, we want to package just the API exposed by the # outermost module. # This means shared_library uses --whole-archive, while loadable_module doesn't. # (Note that --whole-archive is incompatible with the --start-group used in # normal linking.) # Other shared-object link notes: # - Set SONAME to the library filename so our binaries don't reference # the local, absolute paths used on the link command-line. quiet_cmd_solink = SOLINK($(TOOLSET)) $@ cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ -Wl,--whole-archive $(LD_INPUTS) -Wl,--no-whole-archive $(LIBS) quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@ cmd_solink_module = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ -Wl,--start-group $(filter-out FORCE_DO_CMD, $^) -Wl,--end-group $(LIBS) # Define an escape_quotes function to escape single quotes. # This allows us to handle quotes properly as long as we always use # use single quotes and escape_quotes. escape_quotes = $(subst ','\'',$(1)) # This comment is here just to include a ' to unconfuse syntax highlighting. # Define an escape_vars function to escape '$' variable syntax. # This allows us to read/write command lines with shell variables (e.g. # $LD_LIBRARY_PATH), without triggering make substitution. escape_vars = $(subst $$,$$$$,$(1)) # Helper that expands to a shell command to echo a string exactly as it is in # make. This uses printf instead of echo because printf's behaviour with respect # to escape sequences is more portable than echo's across different shells # (e.g., dash, bash). exact_echo = printf '%s\n' '$(call escape_quotes,$(1))' # Helper to compare the command we're about to run against the command # we logged the last time we ran the command. Produces an empty # string (false) when the commands match. # Tricky point: Make has no string-equality test function. # The kernel uses the following, but it seems like it would have false # positives, where one string reordered its arguments. # arg_check = $(strip $(filter-out $(cmd_$(1)), $(cmd_$@)) \ # $(filter-out $(cmd_$@), $(cmd_$(1)))) # We instead substitute each for the empty string into the other, and # say they're equal if both substitutions produce the empty string. # .d files contain ? instead of spaces, take that into account. command_changed = $(or $(subst $(cmd_$(1)),,$(cmd_$(call replace_spaces,$@))),\ $(subst $(cmd_$(call replace_spaces,$@)),,$(cmd_$(1)))) # Helper that is non-empty when a prerequisite changes. # Normally make does this implicitly, but we force rules to always run # so we can check their command lines. # $? -- new prerequisites # $| -- order-only dependencies prereq_changed = $(filter-out FORCE_DO_CMD,$(filter-out $|,$?)) # Helper that executes all postbuilds until one fails. define do_postbuilds @E=0;\ for p in $(POSTBUILDS); do\ eval $$p;\ E=$$?;\ if [ $$E -ne 0 ]; then\ break;\ fi;\ done;\ if [ $$E -ne 0 ]; then\ rm -rf "$@";\ exit $$E;\ fi endef # do_cmd: run a command via the above cmd_foo names, if necessary. # Should always run for a given target to handle command-line changes. # Second argument, if non-zero, makes it do asm/C/C++ dependency munging. # Third argument, if non-zero, makes it do POSTBUILDS processing. # Note: We intentionally do NOT call dirx for depfile, since it contains ? for # spaces already and dirx strips the ? characters. define do_cmd $(if $(or $(command_changed),$(prereq_changed)), @$(call exact_echo, $($(quiet)cmd_$(1))) @mkdir -p "$(call dirx,$@)" "$(dir $(depfile))" $(if $(findstring flock,$(word 1,$(cmd_$1))), @$(cmd_$(1)) @echo " $(quiet_cmd_$(1)): Finished", @$(cmd_$(1)) ) @$(call exact_echo,$(call escape_vars,cmd_$(call replace_spaces,$@) := $(cmd_$(1)))) > $(depfile) @$(if $(2),$(fixup_dep)) $(if $(and $(3), $(POSTBUILDS)), $(call do_postbuilds) ) ) endef # Declare the "all" target first so it is the default, # even though we don't have the deps yet. .PHONY: all all: # make looks for ways to re-generate included makefiles, but in our case, we # don't have a direct way. Explicitly telling make that it has nothing to do # for them makes it go faster. %.d: ; # Use FORCE_DO_CMD to force a target to run. Should be coupled with # do_cmd. .PHONY: FORCE_DO_CMD FORCE_DO_CMD: TOOLSET := target # Suffix rules, putting all outputs into $(obj). $(obj).$(TOOLSET)/%.o: $(srcdir)/%.c FORCE_DO_CMD @$(call do_cmd,cc,1) $(obj).$(TOOLSET)/%.o: $(srcdir)/%.cc FORCE_DO_CMD @$(call do_cmd,cxx,1) $(obj).$(TOOLSET)/%.o: $(srcdir)/%.cpp FORCE_DO_CMD @$(call do_cmd,cxx,1) $(obj).$(TOOLSET)/%.o: $(srcdir)/%.cxx FORCE_DO_CMD @$(call do_cmd,cxx,1) $(obj).$(TOOLSET)/%.o: $(srcdir)/%.S FORCE_DO_CMD @$(call do_cmd,cc,1) $(obj).$(TOOLSET)/%.o: $(srcdir)/%.s FORCE_DO_CMD @$(call do_cmd,cc,1) # Try building from generated source, too. $(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.c FORCE_DO_CMD @$(call do_cmd,cc,1) $(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cc FORCE_DO_CMD @$(call do_cmd,cxx,1) $(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cpp FORCE_DO_CMD @$(call do_cmd,cxx,1) $(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cxx FORCE_DO_CMD @$(call do_cmd,cxx,1) $(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.S FORCE_DO_CMD @$(call do_cmd,cc,1) $(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.s FORCE_DO_CMD @$(call do_cmd,cc,1) $(obj).$(TOOLSET)/%.o: $(obj)/%.c FORCE_DO_CMD @$(call do_cmd,cc,1) $(obj).$(TOOLSET)/%.o: $(obj)/%.cc FORCE_DO_CMD @$(call do_cmd,cxx,1) $(obj).$(TOOLSET)/%.o: $(obj)/%.cpp FORCE_DO_CMD @$(call do_cmd,cxx,1) $(obj).$(TOOLSET)/%.o: $(obj)/%.cxx FORCE_DO_CMD @$(call do_cmd,cxx,1) $(obj).$(TOOLSET)/%.o: $(obj)/%.S FORCE_DO_CMD @$(call do_cmd,cc,1) $(obj).$(TOOLSET)/%.o: $(obj)/%.s FORCE_DO_CMD @$(call do_cmd,cc,1) ifeq ($(strip $(foreach prefix,$(NO_LOAD),\ $(findstring $(join ^,$(prefix)),\ $(join ^,libvips-cpp.target.mk)))),) include libvips-cpp.target.mk endif ifeq ($(strip $(foreach prefix,$(NO_LOAD),\ $(findstring $(join ^,$(prefix)),\ $(join ^,sharp.target.mk)))),) include sharp.target.mk endif ifeq ($(strip $(foreach prefix,$(NO_LOAD),\ $(findstring $(join ^,$(prefix)),\ $(join ^,win_copy_dlls.target.mk)))),) include win_copy_dlls.target.mk endif quiet_cmd_regen_makefile = ACTION Regenerating $@ cmd_regen_makefile = cd $(srcdir); /usr/lib/node_modules/npm/node_modules/node-gyp/gyp/gyp_main.py -fmake --ignore-environment "--toplevel-dir=." -I/home/ec2-user/sharp/node_modules/sharp/build/config.gypi -I/usr/lib/node_modules/npm/node_modules/node-gyp/addon.gypi -I/home/ec2-user/.node-gyp/6.12.0/include/node/common.gypi "--depth=." "-Goutput_dir=." "--generator-output=build" "-Dlibrary=shared_library" "-Dvisibility=default" "-Dnode_root_dir=/home/ec2-user/.node-gyp/6.12.0" "-Dnode_gyp_dir=/usr/lib/node_modules/npm/node_modules/node-gyp" "-Dnode_lib_file=node.lib" "-Dmodule_root_dir=/home/ec2-user/sharp/node_modules/sharp" binding.gyp Makefile: $(srcdir)/../../../.node-gyp/6.12.0/include/node/common.gypi $(srcdir)/build/config.gypi $(srcdir)/binding.gyp $(srcdir)/../../../../../usr/lib/node_modules/npm/node_modules/node-gyp/addon.gypi $(call do_cmd,regen_makefile) # "all" is a concatenation of the "all" targets from all the included # sub-makefiles. This is just here to clarify. all: # Add in dependency-tracking rules. $(all_deps) is the list of every single # target in our tree. Only consider the ones with .d (dependency) info: d_files := $(wildcard $(foreach f,$(all_deps),$(depsdir)/$(f).d)) ifneq ($(d_files),) include $(d_files) endif