From 2e1e227b4cfe6f26cc49e5707a9b859a1973f4fb Mon Sep 17 00:00:00 2001
From: xiphon <xiphon@protonmail.com>
Date: Mon, 4 Nov 2019 13:21:27 +0000
Subject: [PATCH] build: MinGW fix gcc >= 9.1 build, enable stack protection

---
 monero-wallet-gui.pro | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/monero-wallet-gui.pro b/monero-wallet-gui.pro
index 1d58ce98..11d57bc8 100644
--- a/monero-wallet-gui.pro
+++ b/monero-wallet-gui.pro
@@ -16,10 +16,21 @@ packagesExist(libusb-1.0) {
 packagesExist(hidapi-libusb) {
     PKGCONFIG += hidapi-libusb
 }
-!win32 {
+
+GCC_VERSION = $$system("g++ -dumpversion")
+GCC_VERSION = $$split(GCC_VERSION, .)
+GCC_VERSION_MAJOR = $$member(GCC_VERSION, 0)
+GCC_VERSION_MINOR = $$member(GCC_VERSION, 1)
+greaterThan(GCC_VERSION_MAJOR, 9) | if(equals(GCC_VERSION_MAJOR, 9) : greaterThan(GCC_VERSION_MINOR, 0)) {
+    GCC_9_1_OR_GREATER = TRUE
+}
+
+!win32 | !isEmpty(GCC_9_1_OR_GREATER) {
     QMAKE_CXXFLAGS += -fPIC -fstack-protector -fstack-protector-strong
     QMAKE_LFLAGS += -fstack-protector -fstack-protector-strong
+}
 
+!win32 {
     packagesExist(protobuf) {
         PKGCONFIG += protobuf
     }