Makefile

  1# SPDX-License-Identifier: GPL-2.0
  2include ../../scripts/Makefile.include
  3include ../../scripts/utilities.mak		# QUIET_CLEAN
  4
  5ifeq ($(srctree),)
  6srctree := $(patsubst %/,%,$(dir $(CURDIR)))
  7srctree := $(patsubst %/,%,$(dir $(srctree)))
  8srctree := $(patsubst %/,%,$(dir $(srctree)))
  9#$(info Determined 'srctree' to be $(srctree))
 10endif
 11
 12CC ?= $(CROSS_COMPILE)gcc
 13LD ?= $(CROSS_COMPILE)ld
 14AR ?= $(CROSS_COMPILE)ar
 15
 16RM = rm -f
 17
 18MAKEFLAGS += --no-print-directory
 19
 20INSTALL = install
 21
 22# Use DESTDIR for installing into a different root directory.
 23# This is useful for building a package. The program will be
 24# installed in this directory as if it was the root directory.
 25# Then the build tool can move it later.
 26DESTDIR ?=
 27DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
 28
 29LIBFILE = $(OUTPUT)libsubcmd.a
 30
 31CFLAGS := -ggdb3 -Wall -Wextra -std=gnu99 -fPIC
 32
 33ifeq ($(DEBUG),0)
 34  ifeq ($(feature-fortify-source), 1)
 35    CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
 36  endif
 37endif
 38
 39ifeq ($(DEBUG),1)
 40  CFLAGS += -O0
 41else
 42  CFLAGS += -O3
 43endif
 44
 45# Treat warnings as errors unless directed not to
 46ifneq ($(WERROR),0)
 47  CFLAGS += -Werror
 48endif
 49
 50CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 51
 52CFLAGS += -I$(srctree)/tools/include/
 53
 54CFLAGS += $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
 55
 56SUBCMD_IN := $(OUTPUT)libsubcmd-in.o
 57
 58ifeq ($(LP64), 1)
 59  libdir_relative = lib64
 60else
 61  libdir_relative = lib
 62endif
 63
 64prefix ?=
 65libdir = $(prefix)/$(libdir_relative)
 66
 67# Shell quotes
 68libdir_SQ = $(subst ','\'',$(libdir))
 69
 70all:
 71
 72export srctree OUTPUT CC LD CFLAGS V
 73include $(srctree)/tools/build/Makefile.include
 74
 75all: fixdep $(LIBFILE)
 76
 77$(SUBCMD_IN): fixdep FORCE
 78	@$(MAKE) $(build)=libsubcmd
 79
 80$(LIBFILE): $(SUBCMD_IN)
 81	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(SUBCMD_IN)
 82
 83define do_install_mkdir
 84	if [ ! -d '$(DESTDIR_SQ)$1' ]; then             \
 85		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
 86	fi
 87endef
 88
 89define do_install
 90	if [ ! -d '$2' ]; then             \
 91		$(INSTALL) -d -m 755 '$2'; \
 92	fi;                                             \
 93	$(INSTALL) $1 $(if $3,-m $3,) '$2'
 94endef
 95
 96install_lib: $(LIBFILE)
 97	$(call QUIET_INSTALL, $(LIBFILE)) \
 98		$(call do_install_mkdir,$(libdir_SQ)); \
 99		cp -fpR $(LIBFILE) $(DESTDIR)$(libdir_SQ)
100
101HDRS := exec-cmd.h help.h pager.h parse-options.h run-command.h
102INSTALL_HDRS_PFX := $(DESTDIR)$(prefix)/include/subcmd
103INSTALL_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(HDRS))
104
105$(INSTALL_HDRS): $(INSTALL_HDRS_PFX)/%.h: %.h
106	$(call QUIET_INSTALL, $@) \
107		$(call do_install,$<,$(INSTALL_HDRS_PFX)/,644)
108
109install_headers: $(INSTALL_HDRS)
110	$(call QUIET_INSTALL, libsubcmd_headers)
111
112install: install_lib install_headers
113
114clean:
115	$(call QUIET_CLEAN, libsubcmd) $(RM) $(LIBFILE); \
116	find $(or $(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
117
118FORCE:
119
120.PHONY: clean FORCE