diff --git a/macros.mingw32 b/macros.mingw32
index 6f95b75..250675c 100644
--- a/macros.mingw32
+++ b/macros.mingw32
@@ -27,6 +27,7 @@
 %mingw32_cppflags        %{nil}
 %mingw32_fflags          -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions --param=ssp-buffer-size=4
 %mingw32_ldflags         -fstack-protector -lssp
+%mingw32_rustflags       -Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cforce-frame-pointers=yes --cap-lints=warn
 
 %mingw32_cc              %{mingw32_target}-gcc
 %mingw32_cxx             %{mingw32_target}-g++
@@ -77,6 +78,7 @@
   FFLAGS="${MINGW32_FFLAGS-%mingw32_fflags}"; export FFLAGS; \
   FCFLAGS="${MINGW32_FCFLAGS-%mingw32_fflags}"; export FCFLAGS; \
   LDFLAGS="${MINGW32_LDFLAGS:-%mingw32_ldflags}"; export LDFLAGS; \
+  RUSTFLAGS="${MINGW32_RUSTFLAGS:-%mingw32_rustflags}"; export RUSTFLAGS; \
   for i in `ls %{mingw32_bindir}/*|grep -- "-config\$"` ; do \
     x=`basename $i|tr "a-z+-." "A-ZX_"`; \
     declare -x $x="$i" ; export $x; \
diff --git a/macros.mingw64 b/macros.mingw64
index 17c0711..493024d 100644
--- a/macros.mingw64
+++ b/macros.mingw64
@@ -27,6 +27,7 @@
 %mingw64_cppflags        %{nil}
 %mingw64_fflags          -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions --param=ssp-buffer-size=4
 %mingw64_ldflags         -fstack-protector -lssp
+%mingw64_rustflags       -Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cforce-frame-pointers=yes --cap-lints=warn
 
 %mingw64_cc              %{mingw64_target}-gcc
 %mingw64_cxx             %{mingw64_target}-g++
@@ -77,6 +78,7 @@
   FFLAGS="${MINGW64_FFLAGS-%mingw64_fflags}"; export FFLAGS; \
   FCFLAGS="${MINGW64_FCFLAGS-%mingw64_fflags}"; export FCFLAGS; \
   LDFLAGS="${MINGW64_LDFLAGS:-%mingw64_ldflags}"; export LDFLAGS; \
+  RUSTFLAGS="${MINGW64_RUSTFLAGS:-%mingw64_rustflags}"; export RUSTFLAGS; \
   for i in `ls %{mingw64_bindir}/*|grep -- "-config\$"` ; do \
     x=`basename $i|tr "a-z+-." "A-ZX_"`; \
     declare -x $x="$i" ; export $x; \
diff --git a/mingw-filesystem.spec b/mingw-filesystem.spec
index 2e44241..45bc922 100644
--- a/mingw-filesystem.spec
+++ b/mingw-filesystem.spec
@@ -9,8 +9,8 @@
 %global macrosdir %(d=%{_rpmconfigdir}/macros.d; [ -d $d ] || d=%{_sysconfdir}/rpm; echo $d)
 
 Name:           mingw-filesystem
-Version:        145
-Release:        2%{?dist}
+Version:        146
+Release:        1%{?dist}
 Summary:        MinGW cross compiler base filesystem and environment
 
 License:        GPL-2.0-or-later
@@ -376,6 +376,9 @@ echo ".so man1/pkgconf.1" > %{buildroot}%{_mandir}/man1/x86_64-w64-mingw32ucrt-p
 %dir %{_prefix}/lib/debug/%{_prefix}/x86_64-w64-mingw32ucrt
 
 %changelog
+* Wed Apr 05 2023 Sandro Mani <manisandro@gmail.com> - 146-1
+- Set RUSTFLAGS in mingw env
+
 * Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 145-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild