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libjio/libjio/Makefile  view on Meta::CPAN

# output directory, will be created if it doesn't exist
O = build

CFLAGS = -std=c99 -pedantic -Wall -O3

MANDATORY_CFLAGS := \
	-D_LARGEFILE_SOURCE=1 $(shell getconf LFS_CFLAGS 2>/dev/null) \
	-D_XOPEN_SOURCE=600

MANDATORY_LDFLAGS := $(shell getconf LFS_LIBS 2>/dev/null)

ALL_CFLAGS += $(CFLAGS) $(MANDATORY_CFLAGS) -fPIC
ALL_LDFLAGS += $(LDFLAGS) $(MANDATORY_LDFLAGS) -fPIC


# some platforms do not have librt, we only use it if available
NEED_LIBRT := $(shell ld -o rtcheck.so -shared -lrt 2>/dev/null && echo -lrt; \
	rm -f rtcheck.so)

LIBS = -lpthread $(NEED_LIBRT)


# shorthands for common build variants

ifdef DEBUG
ALL_CFLAGS += -g
ALL_LDFLAGS += -g
endif

ifdef PROFILE
ALL_CFLAGS += -g -pg -fprofile-arcs -ftest-coverage
ALL_LDFLAGS += -g -pg -fprofile-arcs -ftest-coverage -lgcov
endif

ifdef FI
ALL_CFLAGS += -DFIU_ENABLE=1
LIBS += -lfiu
endif


# prefix for installing the binaries
PREFIX = /usr/local

# prefix for eventual location of binaries
DESTDIR=$(PREFIX)

# install utility, we assume it's GNU/BSD compatible
INSTALL=install


# nicer output
ifneq ($(V), 1)
        N_CC = @echo "  CC  $(subst $O/,,$@)"; $(CC)
        N_AR = @echo "  AR  $(subst $O/,,$@)"; $(AR)
else
        N_CC = $(CC)
        N_AR = $(AR)
endif


# library version, used for soname and generated documentation
LIB_VER=1.01
LIB_SO_VER=1


OBJS = $(addprefix $O/,autosync.o checksum.o common.o compat.o trans.o \
               check.o journal.o unix.o ansi.o)


# targets

default: all

all: $O/libjio.so $O/libjio.a $O/libjio.pc $O/jiofsck

# used to rebuild everything when the build flags have changed
BF = $(CC) ~ $(ALL_CFLAGS) ~ $(PREFIX)
$O/build-flags: .force-build-flags
	@mkdir -p $O
	@if [ x"$(BF)" != x"`cat $O/build-flags 2>/dev/null`" ]; then \