2 files changed, 6 insertions, 3 deletions
diff --git a/README.md b/README.md
index e01761b..460882d 100644
--- a/README.md
+++ b/README.md
@@ -204,6 +204,8 @@ file is fetched.
 `RELX_URL` is the location where `relx` can be downloaded if it is
 not found locally.
 
+`RELX_OPTS` is for setting relx in-line options, if any.
+
 Extra targets
 -------------
 
diff --git a/erlang.mk b/erlang.mk
index 4008926..0dadfbb 100644
--- a/erlang.mk
+++ b/erlang.mk
@@ -24,7 +24,7 @@ export PKG_FILE
 PKG_FILE_URL ?= https://raw.github.com/extend/erlang.mk/master/packages.v1.tsv
 
 define get_pkg_file
-	wget -O $(PKG_FILE) $(PKG_FILE_URL) || rm $(PKG_FILE)
+	wget --no-check-certificate -O $(PKG_FILE) $(PKG_FILE_URL) || rm $(PKG_FILE)
 endef
 
 # Verbosity and tweaks.
@@ -58,7 +58,8 @@ ifneq ($(wildcard $(RELX_CONFIG)),)
 RELX ?= $(CURDIR)/relx
 export RELX
 
-RELX_URL ?= https://github.com/erlware/relx/releases/download/0.4.0/relx
+RELX_URL ?= https://github.com/erlware/relx/releases/download/v0.5.2/relx
+RELX_OPTS ?=
 
 define get_relx
 	wget -O $(RELX) $(RELX_URL) || rm $(RELX)
@@ -66,7 +67,7 @@ define get_relx
 endef
 
 rel: clean-rel all $(RELX)
-	@$(RELX)
+	@$(RELX) -c $(RELX_CONFIG) $(RELX_OPTS)
 
 $(RELX):
 	@$(call get_relx)