From d27e70db8eafad792db6aa3c38253ba6d8b0b42d Mon Sep 17 00:00:00 2001
From: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Date: Tue, 8 Oct 2019 10:38:22 +0200
Subject: [PATCH] bump simplecpp (#2245)

---
 externals/simplecpp/simplecpp.cpp | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/externals/simplecpp/simplecpp.cpp b/externals/simplecpp/simplecpp.cpp
index f94710b35..af48ca27f 100644
--- a/externals/simplecpp/simplecpp.cpp
+++ b/externals/simplecpp/simplecpp.cpp
@@ -1133,12 +1133,20 @@ std::string simplecpp::TokenList::readUntil(std::istream &istr, const Location &
         backslash = false;
         ret += ch;
         if (ch == '\\') {
-            const char next = readChar(istr, bom);
-            if (next == '\r' || next == '\n') {
-                ret.erase(ret.size()-1U);
-                backslash = (next == '\r');
-            }
-            ret += next;
+            bool update_ch = false;
+            char next = 0;
+            do {
+                next = readChar(istr, bom);
+                if (next == '\r' || next == '\n') {
+                    ret.erase(ret.size()-1U);
+                    backslash = (next == '\r');
+                    update_ch = false;
+                } else if (next == '\\')
+                    update_ch = !update_ch;
+                ret += next;
+            } while (next == '\\');
+            if (update_ch)
+                ch = next;
         }
     }