Currently make (GNU Make 4.2.1) will fail if pkg-config fails even if
it's not necessary, e.g. make clean target. We move the make bailout if
pkg-config failed to the binary target when pkg-config result is
necessary.

Note: this is using $(.SHELLSTATUS) which is only available on GNU Makefile
version 4.2 or above.
---
 dlm_controld/Makefile | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/dlm_controld/Makefile b/dlm_controld/Makefile
index 9cf7152f..44715982 100644
--- a/dlm_controld/Makefile
+++ b/dlm_controld/Makefile
@@ -54,20 +54,35 @@ BIN_LDFLAGS += -lpthread -lrt -lcpg -lcmap -lcfg -lquorum 
-luuid
 LIB_LDFLAGS += $(LDFLAGS) -Wl,-z,relro -Wl,-z,now -pie
 
 PKG_CONFIG ?= pkg-config
+PKG_CONFIG_FLAGS := --errors-to-stdout
+
 ifeq ($(USE_SD_NOTIFY),yes)
-       BIN_CFLAGS += $(shell $(PKG_CONFIG) --cflags libsystemd) \
+       SYSTEMD_CFLAGS := $(shell $(PKG_CONFIG) $(PKG_CONFIG_FLAGS) --cflags 
libsystemd) \
                      -DUSE_SD_NOTIFY
-       BIN_LDFLAGS += $(shell $(PKG_CONFIG) --libs libsystemd)
+       SYSTEMD_CFLAGS_STATUS := $(.SHELLSTATUS)
+       SYSTEMD_LDFLAGS := $(shell $(PKG_CONFIG) $(PKG_CONFIG_FLAGS) --libs 
libsystemd)
+       SYSTEMD_LDFLAGS_STATUS := $(.SHELLSTATUS)
+else
+       SYSTEMD_CFLAGS_STATUS := 0
+       SYSTEMD_LDFLAGS_STATUS := 0
 endif
 
-ifeq (, $(shell $(PKG_CONFIG) --libs "libquorum >= 3.1.0"))
-        $(error "Requires libquorum at least version 3.1.0")
-endif
+CPG_LDFLAGS := $(shell $(PKG_CONFIG) $(PKG_CONFIG_FLAGS) --libs "libquorum >= 
3.1.0")
+CPG_LDFLAGS_STATUS := $(.SHELLSTATUS)
 
 all: $(LIB_TARGET) $(BIN_TARGET) $(LIB_PC)
 
 $(BIN_TARGET): $(BIN_SOURCE)
-       $(CC) $(BIN_SOURCE) $(BIN_CFLAGS) $(BIN_LDFLAGS) -o $@ -L.
+ifneq ($(CPG_LDFLAGS_STATUS),0)
+       $(error "Failed to call pkg-config for corosync ldflags: 
$(CPG_LDFLAGS)")
+endif
+ifneq ($(SYSTEMD_CFLAGS_STATUS),0)
+       $(error "Failed to call pkg-config for systemd cflags: 
$(SYSTEMD_CFLAGS)")
+endif
+ifneq ($(SYSTEMD_LDFLAGS_STATUS),0)
+       $(error "Failed to call pkg-config for systemd ldflags: 
$(SYSTEMD_LDFLAGS)")
+endif
+       $(CC) $(BIN_SOURCE) $(BIN_CFLAGS) $(SYSTEMD_CFLAGS) $(BIN_LDFLAGS) 
$(SYSTEMD_LDFLAGS) -o $@ -L.
 
 $(LIB_TARGET): $(LIB_SOURCE)
        $(CC) $^ $(LIB_CFLAGS) $(LIB_LDFLAGS) -shared -o $@ 
-Wl,-soname=$(LIB_SMAJOR)
-- 
2.31.1

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