From: Martin Wilck <mwi...@suse.com>

Make the path to multipath.conf configurable, and use the same prefix
by default for multipath.conf and multipath/conf.d. For "usr-merged"
distributions with immutable /usr, we'll want to have the configuration
under a different prefix. This can be achieved by using e.g.

    make prefix=/usr etc_prefix=""

Note that with prefix=/usr, before this patch the code would use
/usr/etc/multipath/conf.d, but /etc/multipath.conf. If this (rather
inconsistent) behavior is desired, use the following command line:

    make prefix=/usr configfile=/etc/multipath.conf
---
 Makefile.inc            | 9 ++++++---
 libmultipath/defaults.h | 1 -
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/Makefile.inc b/Makefile.inc
index 502cd0f..39972d9 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -37,6 +37,8 @@ prefix                :=
 exec_prefix    := $(prefix)
 # Prefix for non-essential libraries (libdmmp)
 usr_prefix     := $(prefix)
+# Prefix for configfuration files (multipath.conf)
+etc_prefix     := $(prefix)
 # Where to install systemd-related files. systemd is usually installed under 
/usr
 # Note: some systemd installations use separate "prefix" and "rootprefix".
 # In this case, override only unitdir to use systemd's "rootprefix" instead of 
$(systemd_prefix)
@@ -54,7 +56,8 @@ usrlibdir     := $(usr_prefix)/$(LIB)
 includedir     := $(usr_prefix)/include
 pkgconfdir     := $(usrlibdir)/pkgconfig
 plugindir       := $(prefix)/$(LIB)/multipath
-configdir       := $(prefix)/etc/multipath/conf.d
+configdir       := $(etc_prefix)/etc/multipath/conf.d
+configfile      := $(etc_prefix)/etc/multipath.conf
 runtimedir      := $(if $(shell test -L /var/run -o ! -d /var/run && echo 
1),/run,/var/run)
 devmapper_incdir := $(or $(shell $(PKG_CONFIG) --variable=includedir 
devmapper),/usr/include)
 libudev_incdir := $(or $(shell $(PKG_CONFIG) --variable=includedir 
libudev),/usr/include)
@@ -84,8 +87,8 @@ WARNFLAGS     := -Werror -Wall -Wextra -Wformat=2 
$(WFORMATOVERFLOW) -Werror=implici
                  $(WNOCLOBBERED) -Werror=cast-qual 
$(ERROR_DISCARDED_QUALIFIERS) $(W_URCU_TYPE_LIMITS)
 CPPFLAGS       := $(FORTIFY_OPT) $(CPPFLAGS) \
                   -DBIN_DIR=\"$(bindir)\" -DMULTIPATH_DIR=\"$(plugindir)\" \
-                  -DRUNTIME_DIR=\"$(runtimedir)\" \
-                  -DCONFIG_DIR=\"$(configdir)\" 
-DEXTRAVERSION=\"$(EXTRAVERSION)\" -MMD -MP
+                  -DRUNTIME_DIR=\"$(runtimedir)\" 
-DCONFIG_DIR=\"$(configdir)\" \
+                  -DDEFAULT_CONFIGFILE=\"$(configfile)\" 
-DEXTRAVERSION=\"$(EXTRAVERSION)\" -MMD -MP
 CFLAGS         := --std=gnu99 $(CFLAGS) $(OPTFLAGS) $(WARNFLAGS) -pipe
 BIN_CFLAGS     := -fPIE -DPIE
 LIB_CFLAGS     := -fPIC
diff --git a/libmultipath/defaults.h b/libmultipath/defaults.h
index b3f11d4..bc2d638 100644
--- a/libmultipath/defaults.h
+++ b/libmultipath/defaults.h
@@ -66,7 +66,6 @@
 #define MAX_DEV_LOSS_TMO       UINT_MAX
 #define DEFAULT_PIDFILE                RUNTIME_DIR "/multipathd.pid"
 #define DEFAULT_SOCKET         "/org/kernel/linux/storage/multipathd"
-#define DEFAULT_CONFIGFILE     "/etc/multipath.conf"
 #define DEFAULT_BINDINGS_FILE  "/etc/multipath/bindings"
 #define DEFAULT_WWIDS_FILE     "/etc/multipath/wwids"
 #define DEFAULT_PRKEYS_FILE    "/etc/multipath/prkeys"
-- 
2.42.0

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