libgit2: fix cmake options on FreeBSD (#22754)

Fix #22745

deps/libgit2.mk

@@ -36,30 +36,27 @@ else
 LIBGIT2_OPTS += -DCURL_INCLUDE_DIRS=$(build_includedir) -DCURL_LIBRARIES="-L$(build_shlibdir) -lcurl"
 endif
 
-ifeq ($(OS),Linux)
+ifneq (,$(findstring $(OS),Linux FreeBSD))
 LIBGIT2_OPTS += -DUSE_HTTPS=ON -DTLS_BACKEND="mbedTLS" -DCMAKE_INSTALL_RPATH="\$$ORIGIN"
 endif
-ifeq ($(OS),FreeBSD)
-LIBGIT2_OPTS += -DCMAKE_INSTALL_RPATH="\$$ORIGIN"
-endif
 
 # We need to bundle ca certs on linux now that we're using libgit2 with ssl
-ifeq ($(OS),Linux)
+ifneq (,$(findstring $(OS),Linux FreeBSD))
 OPENSSL_DIR=$(shell openssl version -d | cut -d '"' -f 2)
 # This certfile location observed on Ubuntu 16.04
 ifeq ($(shell [ -e $(OPENSSL_DIR)/certs/ca-certificates.crt ] && echo exists),exists)
 CERTFILE=$(OPENSSL_DIR)/certs/ca-certificates.crt
 # This certfile location observed on openSUSE Leap 42.1
 else ifeq ($(shell [ -e $(OPENSSL_DIR)/ca-bundle.pem ] && echo exists),exists)
 CERTFILE=$(OPENSSL_DIR)/ca-bundle.pem
-# This certfile location observed on Ubuntu 14.04
+# This certfile location observed on Ubuntu 14.04 and FreeBSD
 else ifeq ($(shell [ -e $(OPENSSL_DIR)/cert.pem ] && echo exists),exists)
 CERTFILE=$(OPENSSL_DIR)/cert.pem
 # This certfile location observed on Debian 7
 else ifeq ($(shell [ -e $(OPENSSL_DIR)/certs/ca.pem ] && echo exists),exists)
 CERTFILE=$(OPENSSL_DIR)/certs/ca.pem
 endif
-endif # Linux
+endif # Linux and FreeBSD
 
 LIBGIT2_SRC_PATH := $(SRCDIR)/srccache/$(LIBGIT2_SRC_DIR)