From cc4fe977e5eedf00d8e3d267ccbc3676b3fac1a0 Mon Sep 17 00:00:00 2001
From: Julian Stecklina <julian.stecklina@cyberus-technology.de>
Date: Mon, 9 Mar 2020 14:07:26 +0100
Subject: [PATCH] Link to stdc++fs

Some platforms seem to still require linking with stdc++fs to enable
STL std::filesystem support.
---
 src/libexpr/local.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/libexpr/local.mk b/src/libexpr/local.mk
index 9b5fcc561..b6ee82424 100644
--- a/src/libexpr/local.mk
+++ b/src/libexpr/local.mk
@@ -8,7 +8,11 @@ libexpr_SOURCES := $(wildcard $(d)/*.cc) $(wildcard $(d)/primops/*.cc) $(d)/lexe
 
 libexpr_LIBS = libutil libstore libnixrust
 
+ifeq ($(CXX), g++)
+libexpr_LDFLAGS = -lstdc++fs
+else
 libexpr_LDFLAGS =
+endif
 
 ifneq ($(OS), FreeBSD)
  libexpr_LDFLAGS += -ldl