From e63f6503fc160ed8c1b8867ac8300fa9f3e9723e Mon Sep 17 00:00:00 2001
From: Michael Stahl <mstahl@redhat.com>
Date: Fri, 15 Apr 2016 23:38:56 +0200
Subject: [PATCH] hunspell: MSVC debug runtime iterators don't want to
 decrement past begin()

Change-Id: I258dc551d14ba72113b284be3566ba924434ab4c
---
 external/hunspell/UnpackedTarball_hunspell.mk |  1 +
 external/hunspell/hunspell-iterator.patch.1   | 22 +++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 external/hunspell/hunspell-iterator.patch.1

diff --git a/external/hunspell/UnpackedTarball_hunspell.mk b/external/hunspell/UnpackedTarball_hunspell.mk
index 943e78830133..3aae5798af0e 100644
--- a/external/hunspell/UnpackedTarball_hunspell.mk
+++ b/external/hunspell/UnpackedTarball_hunspell.mk
@@ -13,6 +13,7 @@ $(eval $(call gb_UnpackedTarball_set_tarball,hunspell,$(HUNSPELL_TARBALL)))
 
 $(eval $(call gb_UnpackedTarball_add_patches,hunspell,\
 	external/hunspell/hunspell-solaris.patch \
+	external/hunspell/hunspell-iterator.patch.1 \
 ))
 
 ifeq ($(COM),MSC)
diff --git a/external/hunspell/hunspell-iterator.patch.1 b/external/hunspell/hunspell-iterator.patch.1
new file mode 100644
index 000000000000..046d6e0063a4
--- /dev/null
+++ b/external/hunspell/hunspell-iterator.patch.1
@@ -0,0 +1,22 @@
+MSVC debug runtime iterators don't want to be decremented past begin()
+
+--- hunspell/src/hunspell/affixmgr.cxx.orig	2016-04-15 23:30:37.555875079 +0200
++++ hunspell/src/hunspell/affixmgr.cxx	2016-04-15 23:30:43.669875027 +0200
+@@ -4638,7 +4638,7 @@
+       return;
+ 
+   int neg = 0;
+-  for (std::string::iterator k = piece.begin() + piece.size() - 1; k >= piece.begin(); --k) {
++  for (std::string::iterator k = piece.begin() + piece.size() - 1; ; --k) {
+     switch (*k) {
+       case '[': {
+         if (neg)
+@@ -4666,6 +4666,8 @@
+           *(k + 1) = *k;
+       }
+     }
++    if (k == piece.begin())
++        break;
+   }
+ }
+