1 files changed, 17 insertions, 3 deletions

diff --git a/utils/nwztools/upgtools/Makefile b/utils/nwztools/upgtools/Makefile
index fcfc889ae6..046eb1a1a9 100644
--- a/utils/nwztools/upgtools/Makefile
+++ b/utils/nwztools/upgtools/Makefile
@@ -3,9 +3,23 @@ CC=gcc
 CXX=g++
 LD=g++
 PROFILE=
-CFLAGS=-g $(PROFILE) -std=c99 -Wall $(DEFINES) `pkg-config --cflags libcrypto++`
-CXXFLAGS=-g $(PROFILE) -Wall $(DEFINES) `pkg-config --cflags libcrypto++`
-LDFLAGS=$(PROFILE) `pkg-config --libs libcrypto++` -lpthread
+PKGCONFIG := $(CROSS)pkg-config
+
+# Distros could use different names for the crypto library. We try a list
+# of candidate names, only one of them should be the valid one.
+LIBCRYPTO_NAMES = libcryptopp libcrypto++ cryptopp crypto++
+
+$(foreach l,$(LIBCRYPTO_NAMES),\
+        $(eval LDOPTS += $(shell $(PKGCONFIG) --silence-errors --libs $(l))))
+$(foreach l,$(LIBCRYPTO_NAMES),\
+        $(eval CFLAGS += $(shell $(PKGCONFIG) --silence-errors --cflags $(l))))
+$(foreach l,$(LIBCRYPTO_NAMES),\
+        $(eval CXXFLAGS += $(shell $(PKGCONFIG) --silence-errors --cflags $(l))))
+
+CXXFLAGS=-g $(PROFILE) -Wall $(DEFINES)
+CFLAGS=-g $(PROFILE) -Wall -std=c99 $(DEFINES)
+LDFLAGS=$(PROFILE) $(LDOPTS) -lpthread
+
 BINS=upgtool
 
 all: $(BINS)