2 files changed, 16 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 37bbe4d..1d87d87 100644
--- a/Makefile
+++ b/Makefile
@@ -50,6 +50,13 @@ help:
 	@echo " - clean-all : cleans all"
 	@echo " - format : run clang-format on source files"
 	@echo " - help : print this help"
+	@echo
+	@echo "Available variables:"
+	@echo " - CC : The compiler to use"
+	@echo " - DEBUG : Whether to enable DEBUG build = default 0"
+	@echo " - TEST : Whether to enable TEST build(code coverage) = default 0"
+	@echo " - FAST : Whether to enable additional optimization(gcc only) = default 0"
+	@echo " - STATIC : Whether to link PARI statically = default 0"
 
 .PHONY: all clean clean-all docs test unittest help
 
diff --git a/src/Makefile b/src/Makefile
index 8adbc53..4818f3c 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -11,6 +11,8 @@ CFLAGS = -Wall
 DEBUG ?= 0
 TEST ?= 0
 FAST ?= 0
+STATIC ?= 0
+
 ifeq ($(DEBUG), 1)
     CFLAGS += -DDEBUG -g -Og -Werror -pedantic
 else ifeq ($(TEST), 1)
@@ -24,10 +26,16 @@ else ifeq ($(FAST), 1)
 else
     CFLAGS += -DNDEBUG -O2
 endif
+
 LDFLAGS = -L../lib/parson -L../lib/sha1 -L../lib/pari
+ifeq ($(STATIC), 1)
+	LIBS = -lrt -Wl,-Bstatic -lpari -Wl,-Bdynamic -lpthread -lparson -lsha1 -lm -lgmp -ldl
+else
+	LIBS = -lrt -lpari -lpthread -lparson -lsha1
+endif
 
 INCLUDES = -I. -I../lib
-LIBS = -lrt -lpari -lpthread -lparson -lsha1
+
 
 GIT_COMMIT = $(shell git rev-parse --short HEAD)
 ifneq ($(GIT_COMMIT),)