From abf45cfa2708055ad7392f64167b2c6620018bea Mon Sep 17 00:00:00 2001
From: Zed <zedeus@pm.me>
Date: Sat, 22 Aug 2020 04:44:10 +0200
Subject: [PATCH] Support compiling without PCRE (#12)

---
 README.md              | 6 ++++++
 makefiles/variables.mk | 9 ++++++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index a45a69a..adf9e6d 100644
--- a/README.md
+++ b/README.md
@@ -124,6 +124,12 @@ it comes to support.
 
 `make USE_SYSTEM_NIM=1 test`
 
+### LINK_PCRE
+
+Link PCRE, defaults to 1.
+
+`make LINK_PCRE=0`
+
 ## Make targets
 
 ### build
diff --git a/makefiles/variables.mk b/makefiles/variables.mk
index a4f43f8..674d3e7 100644
--- a/makefiles/variables.mk
+++ b/makefiles/variables.mk
@@ -32,9 +32,12 @@ ifdef LOG_LEVEL
 endif
 
 # avoid a "libpcre.so.3: cannot open shared object file: No such file or directory" message, where possible
-ifneq ($(OS), Windows_NT)
-  ifneq ($(strip $(shell uname)), Darwin)
-    NIM_PARAMS := $(NIM_PARAMS) -d:usePcreHeader --passL:\"-lpcre\"
+LINK_PCRE := 1
+ifeq ($(LINK_PCRE), 1)
+  ifneq ($(OS), Windows_NT)
+	ifneq ($(strip $(shell uname)), Darwin)
+	  NIM_PARAMS := $(NIM_PARAMS) -d:usePcreHeader --passL:\"-lpcre\"
+	endif
   endif
 endif