diff --git a/mingw-gcc.spec b/mingw-gcc.spec
index 1afd8ab..c290abc 100644
--- a/mingw-gcc.spec
+++ b/mingw-gcc.spec
@@ -1,5 +1,8 @@
 %global __os_install_post /usr/lib/rpm/brp-compress %{nil}
 
+# Causes build failures
+%undefine _auto_set_build_flags
+
 # Steps:
 # 1. Build mingw-gcc with bootstrap=1, enable_libgomp=0
 # 2. Build mingw-crt
@@ -43,10 +46,13 @@ URL:            http://gcc.gnu.org
 # git --git-dir=gcc-dir.tmp/.git archive --prefix=%%{name}-%%{version}-%%{DATE}/ %%{gitrev} | xz -9e > %%{name}-%%{version}-%%{DATE}.tar.xz
 # rm -rf gcc-dir.tmp
 %global srcdir gcc-%{version}-%{DATE}
-Source0: %{srcdir}.tar.xz
-Patch0: mingw-gcc-config.patch
+Source0:        %{srcdir}.tar.xz
+
+Patch0:         mingw-gcc-config.patch
 # See https://sourceforge.net/p/mingw-w64/mailman/mingw-w64-public/thread/8fd2fb03-9b8a-07e1-e162-0bb48bcc3984%40gmail.com/#msg37200751
-Patch1: 0020-libgomp-Don-t-hard-code-MS-printf-attributes.patch
+Patch1:         0020-libgomp-Don-t-hard-code-MS-printf-attributes.patch
+# Fix build with gcc12
+Patch2:         gcc_gcc12.patch
 
 BuildRequires:  gcc-c++
 BuildRequires:  make