2 # Copyright (C) 2004 Christophe Varoqui, <christophe.varoqui@opensvc.com>
6 # Allow to force some libraries to be used statically. (Uncomment one of the
7 # following lines or define the values when calling make.)
10 # WITH_LOCAL_LIBSYSFS = 1
12 # Uncomment to disable libdmmp support
15 # Uncomment to disable dmevents polling support
16 # ENABLE_DMEVENTS_POLL = 0
18 PKGCONFIG ?= pkg-config
25 ifeq ($(shell test -d /lib64 && echo 1),1)
33 ifeq ($(shell test -L /var/run -o ! -d /var/run && echo 1),1)
41 ifeq ($(shell $(PKGCONFIG) --modversion libsystemd >/dev/null 2>&1 && echo 1), 1)
42 SYSTEMD = $(shell $(PKGCONFIG) --modversion libsystemd | awk '{print $$1}')
44 ifeq ($(shell systemctl --version >/dev/null 2>&1 && echo 1), 1)
45 SYSTEMD = $(shell systemctl --version 2> /dev/null | \
46 sed -n 's/systemd \([0-9]*\).*/\1/p')
56 exec_prefix = $(prefix)
57 usr_prefix = $(prefix)
58 bindir = $(exec_prefix)/sbin
59 libudevdir = $(prefix)/$(SYSTEMDPATH)/udev
60 udevrulesdir = $(libudevdir)/rules.d
61 multipathdir = $(TOPDIR)/libmultipath
62 man8dir = $(prefix)/usr/share/man/man8
63 man5dir = $(prefix)/usr/share/man/man5
64 man3dir = $(prefix)/usr/share/man/man3
65 syslibdir = $(prefix)/$(LIB)
66 usrlibdir = $(usr_prefix)/$(LIB)
67 libdir = $(prefix)/$(LIB)/multipath
68 unitdir = $(prefix)/$(SYSTEMDPATH)/systemd/system
69 mpathpersistdir = $(TOPDIR)/libmpathpersist
70 mpathcmddir = $(TOPDIR)/libmpathcmd
71 mpathvaliddir = $(TOPDIR)/libmpathvalid
72 thirdpartydir = $(TOPDIR)/third-party
73 libdmmpdir = $(TOPDIR)/libdmmp
74 nvmedir = $(TOPDIR)/libmultipath/nvme
75 includedir = $(prefix)/usr/include
76 pkgconfdir = $(usrlibdir)/pkgconfig
81 INSTALL_PROGRAM = install
82 NV_VERSION_SCRIPT = $(VERSION_SCRIPT:%.version=%-nv.version)
84 # $(call TEST_CC_OPTION,option,fallback)
85 # Test if the C compiler supports the option.
86 # Evaluates to "option" if yes, and "fallback" otherwise.
87 TEST_CC_OPTION = $(shell \
88 if echo 'int main(void){return 0;}' | \
89 $(CC) -o /dev/null -c -Werror "$(1)" -xc - >/dev/null 2>&1; \
96 STACKPROT := $(call TEST_CC_OPTION,-fstack-protector-strong,-fstack-protector)
97 ERROR_DISCARDED_QUALIFIERS := $(call TEST_CC_OPTION,-Werror=discarded-qualifiers,)
98 WNOCLOBBERED := $(call TEST_CC_OPTION,-Wno-clobbered -Wno-error=clobbered,)
99 WFORMATOVERFLOW := $(call TEST_CC_OPTION,-Wformat-overflow=2,)
101 OPTFLAGS := -O2 -g $(STACKPROT) --param=ssp-buffer-size=4
102 WARNFLAGS := -Werror -Wall -Wextra -Wformat=2 $(WFORMATOVERFLOW) -Werror=implicit-int \
103 -Werror=implicit-function-declaration -Werror=format-security \
104 $(WNOCLOBBERED) -Werror=cast-qual $(ERROR_DISCARDED_QUALIFIERS)
105 CPPFLAGS := -Wp,-D_FORTIFY_SOURCE=2
106 CFLAGS := --std=gnu99 $(CFLAGS) $(OPTFLAGS) $(WARNFLAGS) -pipe \
107 -DBIN_DIR=\"$(bindir)\" -DLIB_STRING=\"${LIB}\" -DRUN_DIR=\"${RUN}\" \
109 BIN_CFLAGS = -fPIE -DPIE
111 SHARED_FLAGS = -shared
112 LDFLAGS := $(LDFLAGS) -Wl,-z,relro -Wl,-z,now -Wl,-z,defs
115 # Check whether a function with name $1 has been declared in header file $2.
116 check_func = $(shell \
117 if grep -Eq "^[^[:blank:]]+[[:blank:]]+$1[[:blank:]]*(.*)*" "$2"; then \
124 echo 1>&2 "Checking for $1 in $2 ... $$status"; \
128 # Checker whether a file with name $1 exists
129 check_file = $(shell \
130 if [ -f "$1" ]; then \
137 echo 1>&2 "Checking if $1 exists ... $$status"; \
142 @echo building $@ because of $?
143 $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<