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 ifeq ($(CC_NO_CLANG), 0)
 42  CFLAGS += -O3
 43else
 44  CFLAGS += -O6
 45endif
 46
 47# Treat warnings as errors unless directed not to
 48ifneq ($(WERROR),0)
 49  CFLAGS += -Werror
 50endif
 51
 52CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 53
 54CFLAGS += -I$(srctree)/tools/include/
 55
 56CFLAGS += $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
 57
 58SUBCMD_IN := $(OUTPUT)libsubcmd-in.o
 59
 60ifeq ($(LP64), 1)
 61  libdir_relative = lib64
 62else
 63  libdir_relative = lib
 64endif
 65
 66prefix ?=
 67libdir = $(prefix)/$(libdir_relative)
 68
 69# Shell quotes
 70libdir_SQ = $(subst ','\'',$(libdir))
 71
 72all:
 73
 74export srctree OUTPUT CC LD CFLAGS V
 75include $(srctree)/tools/build/Makefile.include
 76
 77all: fixdep $(LIBFILE)
 78
 79$(SUBCMD_IN): FORCE
 80	@$(MAKE) $(build)=libsubcmd
 81
 82$(LIBFILE): $(SUBCMD_IN)
 83	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(SUBCMD_IN)
 84
 85define do_install_mkdir
 86	if [ ! -d '$(DESTDIR_SQ)$1' ]; then             \
 87		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
 88	fi
 89endef
 90
 91define do_install
 92	if [ ! -d '$2' ]; then             \
 93		$(INSTALL) -d -m 755 '$2'; \
 94	fi;                                             \
 95	$(INSTALL) $1 $(if $3,-m $3,) '$2'
 96endef
 97
 98install_lib: $(LIBFILE)
 99	$(call QUIET_INSTALL, $(LIBFILE)) \
100		$(call do_install_mkdir,$(libdir_SQ)); \
101		cp -fpR $(LIBFILE) $(DESTDIR)$(libdir_SQ)
102
103HDRS := exec-cmd.h help.h pager.h parse-options.h run-command.h
104INSTALL_HDRS_PFX := $(DESTDIR)$(prefix)/include/subcmd
105INSTALL_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(HDRS))
106
107$(INSTALL_HDRS): $(INSTALL_HDRS_PFX)/%.h: %.h
108	$(call QUIET_INSTALL, $@) \
109		$(call do_install,$<,$(INSTALL_HDRS_PFX)/,644)
110
111install_headers: $(INSTALL_HDRS)
112	$(call QUIET_INSTALL, libsubcmd_headers)
113
114install: install_lib install_headers
115
116clean:
117	$(call QUIET_CLEAN, libsubcmd) $(RM) $(LIBFILE); \
118	find $(or $(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
119
120FORCE:
121
122.PHONY: clean FORCE