From 9e25033c851312ff14d784751a87df2c3a59c24c Mon Sep 17 00:00:00 2001
From: friendlyanon <friendlyanon@users.noreply.github.com>
Date: Wed, 6 Jan 2021 01:08:16 +0000
Subject: [PATCH] Link against filesystem

An extra link is required on some versions of GCC and Clang to use the
filesystem library.

See: https://en.cppreference.com/w/cpp/filesystem#Notes
---
 CMakeLists.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c94c3e4..9fc0535 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,6 +30,13 @@ target_include_directories(
 
 target_compile_features(ssp INTERFACE cxx_std_17)
 
+target_link_libraries(
+    ssp
+    INTERFACE
+    "$<$<AND:$<CXX_COMPILER_ID:AppleClang,Clang>,$<VERSION_LESS:$<CXX_COMPILER_VERSION>,9.0>>:c++fs>"
+    "$<$<AND:$<CXX_COMPILER_ID:GNU>,$<VERSION_LESS:$<CXX_COMPILER_VERSION>,9.1>>:stdc++fs>"
+)
+
 # ---- Install ----
 
 include(CMakePackageConfigHelpers)