Debian's build system helpers automatically set "PKG_CONFIG" correctly, so it
would be convenient for Debian to use this name instead of "PKGCONFIG".

The majority of projects also seem to call this makefile variable "PKG_CONFIG".

Signed-off-by: Chris Hofstaedtler <z...@debian.org>
---
 Makefile.inc        | 8 ++++----
 create-config.mk    | 6 +++---
 libdmmp/Makefile    | 4 ++--
 multipathd/Makefile | 2 +-
 4 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/Makefile.inc b/Makefile.inc
index 2e25d2ea..502cd0f1 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -20,9 +20,9 @@ SCSI_DH_MODULES_PRELOAD :=
 
 EXTRAVERSION := $(shell rev=$$(git rev-parse --short=7 HEAD 2>/dev/null); echo 
$${rev:+-g$$rev})
 
-# PKGCONFIG must be read from the environment to enable compilation
+# PKG_CONFIG must be read from the environment to enable compilation
 # in Debian multiarch setups
-PKGCONFIG      ?= pkg-config
+PKG_CONFIG     ?= pkg-config
 
 ifeq ($(TOPDIR),)
        TOPDIR  = ..
@@ -56,8 +56,8 @@ pkgconfdir    := $(usrlibdir)/pkgconfig
 plugindir       := $(prefix)/$(LIB)/multipath
 configdir       := $(prefix)/etc/multipath/conf.d
 runtimedir      := $(if $(shell test -L /var/run -o ! -d /var/run && echo 
1),/run,/var/run)
-devmapper_incdir := $(or $(shell $(PKGCONFIG) --variable=includedir 
devmapper),/usr/include)
-libudev_incdir := $(or $(shell $(PKGCONFIG) --variable=includedir 
libudev),/usr/include)
+devmapper_incdir := $(or $(shell $(PKG_CONFIG) --variable=includedir 
devmapper),/usr/include)
+libudev_incdir := $(or $(shell $(PKG_CONFIG) --variable=includedir 
libudev),/usr/include)
 kernel_incdir  := /usr/include
 
 ifeq ($(V),)
diff --git a/create-config.mk b/create-config.mk
index f128375f..d1255971 100644
--- a/create-config.mk
+++ b/create-config.mk
@@ -104,7 +104,7 @@ ifneq ($(call 
check_var,ELS_DTAG_LNK_INTEGRITY,$(kernel_incdir)/scsi/fc/fc_els.h
        FPIN_SUPPORT = 1
 endif
 
-libmount_h := $(shell $(PKGCONFIG) --variable=includedir 
mount)/libmount/libmount.h
+libmount_h := $(shell $(PKG_CONFIG) --variable=includedir 
mount)/libmount/libmount.h
 ifneq ($(call check_func,mnt_unref_cache,$(libmount_h)),0)
        DEFINES += LIBMOUNT_HAS_MNT_UNREF_CACHE
 endif
@@ -117,13 +117,13 @@ ifneq ($(call 
check_file,$(kernel_incdir)/linux/nvme_ioctl.h),0)
        ANA_SUPPORT := 1
 endif
 
-ENABLE_LIBDMMP := $(call check_cmd,$(PKGCONFIG) --exists json-c)
+ENABLE_LIBDMMP := $(call check_cmd,$(PKG_CONFIG) --exists json-c)
 
 ifeq ($(ENABLE_DMEVENTS_POLL),0)
        DEFINES += -DNO_DMEVENTS_POLL
 endif
 
-SYSTEMD := $(strip $(or $(shell $(PKGCONFIG) --modversion libsystemd 
2>/dev/null | awk '{print $$1}'), \
+SYSTEMD := $(strip $(or $(shell $(PKG_CONFIG) --modversion libsystemd 
2>/dev/null | awk '{print $$1}'), \
                        $(shell systemctl --version 2>/dev/null | sed -n 
's/systemd \([0-9]*\).*/\1/p')))
 
 
diff --git a/libdmmp/Makefile b/libdmmp/Makefile
index 6d28caf9..9ece9528 100644
--- a/libdmmp/Makefile
+++ b/libdmmp/Makefile
@@ -14,10 +14,10 @@ HEADERS := libdmmp/libdmmp.h
 
 OBJS := libdmmp.o libdmmp_mp.o libdmmp_pg.o libdmmp_path.o libdmmp_misc.o
 
-CPPFLAGS += -I$(libdmmpdir) -I$(mpathcmddir) $(shell $(PKGCONFIG) --cflags 
json-c)
+CPPFLAGS += -I$(libdmmpdir) -I$(mpathcmddir) $(shell $(PKG_CONFIG) --cflags 
json-c)
 CFLAGS += $(LIB_CFLAGS) -fvisibility=hidden
 
-LIBDEPS += $(shell $(PKGCONFIG) --libs json-c) -L$(mpathcmddir) -lmpathcmd 
-lpthread
+LIBDEPS += $(shell $(PKG_CONFIG) --libs json-c) -L$(mpathcmddir) -lmpathcmd 
-lpthread
 
 all: $(LIBS) doc
 .PHONY:        doc clean install uninstall check speed_test dep_clean
diff --git a/multipathd/Makefile b/multipathd/Makefile
index dca8e10b..0d0146c5 100644
--- a/multipathd/Makefile
+++ b/multipathd/Makefile
@@ -4,7 +4,7 @@ EXEC := multipathd
 CLI := multipathc
 
 CPPFLAGS += -I$(multipathdir) -I$(mpathutildir) -I$(mpathpersistdir) 
-I$(mpathcmddir) -I$(thirdpartydir) \
-       $(shell $(PKGCONFIG) --modversion liburcu 2>/dev/null | \
+       $(shell $(PKG_CONFIG) --modversion liburcu 2>/dev/null | \
                awk -F. '{ printf("-DURCU_VERSION=0x%06x", 256 * ( 256 * $$1 + 
$$2) + $$3); }') \
        -DBINDIR='"$(bindir)"' $(SYSTEMD_CPPFLAGS)
 
-- 
2.39.2

--
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