From e76db7509d8256a034460da6e1cfdb28ba3c562b Mon Sep 17 00:00:00 2001
From: James Hilliard <james.hilliard1@gmail.com>
Date: Fri, 10 Jul 2020 01:30:09 -0600
Subject: [PATCH] Use pkg-config to properly detect libssl and libcrypto
 libraries (#7452)

(cherry picked from commit 5f16b65a5fae28d2343dd002fcfa2dc802dd18f7)
---
 src/Makefile | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/Makefile b/src/Makefile
index b8c05c32b..80c627c24 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -192,9 +192,21 @@ ifeq ($(MALLOC),jemalloc)
 endif
 
 ifeq ($(BUILD_TLS),yes)
-    FINAL_CFLAGS+=-DUSE_OPENSSL $(OPENSSL_CFLAGS)
-    FINAL_LDFLAGS+=$(OPENSSL_LDFLAGS)
-    FINAL_LIBS += ../deps/hiredis/libhiredis_ssl.a -lssl -lcrypto
+	FINAL_CFLAGS+=-DUSE_OPENSSL $(OPENSSL_CFLAGS)
+	FINAL_LDFLAGS+=$(OPENSSL_LDFLAGS)
+	LIBSSL_PKGCONFIG := $(shell $(PKG_CONFIG) --exists libssl && echo $$?)
+ifeq ($(LIBSSL_PKGCONFIG),0)
+	LIBSSL_LIBS=$(shell $(PKG_CONFIG) --libs libssl)
+else
+	LIBSSL_LIBS=-lssl
+endif
+	LIBCRYPTO_PKGCONFIG := $(shell $(PKG_CONFIG) --exists libcrypto && echo $$?)
+ifeq ($(LIBCRYPTO_PKGCONFIG),0)
+	LIBCRYPTO_LIBS=$(shell $(PKG_CONFIG) --libs libcrypto)
+else
+	LIBCRYPTO_LIBS=-lcrypto
+endif
+	FINAL_LIBS += ../deps/hiredis/libhiredis_ssl.a $(LIBSSL_LIBS) $(LIBCRYPTO_LIBS)
 endif
 
 REDIS_CC=$(QUIET_CC)$(CC) $(FINAL_CFLAGS)