diff --git a/openclonk.spec b/openclonk.spec
index deadb3b..d2885bd 100644
--- a/openclonk.spec
+++ b/openclonk.spec
@@ -3,7 +3,7 @@
 Name:           openclonk
 Summary:        Multiplayer action, tactics and skill game
 Version:        8.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 URL:            http://www.openclonk.org/
 Source0:        https://github.com/openclonk/openclonk/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
 License:        ISC and CC-BY-SA
@@ -106,15 +106,20 @@ cp -p planet/COPYING COPYING-planet
 mkdir -p build && cd build
 
 # -Werror=format-security/ flag prevents compilation
+# https://github.com/openclonk/openclonk/issues/64
 export LDFLAGS="$RPM_LD_FLAGS"
 SETOPT_FLAGS=$(echo "%{optflags}" | sed -e 's/-Werror=format-security/-Wno-error=format-security/g')
 %cmake -Wno-cpp -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_CXX_FLAGS:STRING="$SETOPT_FLAGS" \
  -DCMAKE_EXE_LINKER_FLAGS:STRING="$RPM_LD_FLAGS" \
- -DCMAKE_VERBOSE_MAKEFILE:BOOL=TRUE -DUSE_GCC_STYLE_LTCG:BOOL=OFF \
+ -DCMAKE_VERBOSE_MAKEFILE:BOOL=TRUE \
  -DCMAKE_SKIP_RPATH:BOOL=NO -DWITH_AUTOMATIC_UPDATE:BOOL=OFF \
  -DUSE_X11:BOOL=ON -DUSE_GTK:BOOL=ON -DBUILD_SHARED_LIBS:BOOL=NO \
  -DUSE_STATIC_BOOST=OFF -DUSE_SYSTEM_TINYXML=ON \
- -DSTACK_DETAILS_AUTO_DETECT:BOOL=FALSE ..
+%if 0%{?fedora} > 27
+ -DUSE_GCC_STYLE_LTCG:BOOL=OFF ..
+%else
+ -DUSE_GCC_STYLE_LTCG:BOOL=ON ..
+%endif
 
 %make_build
 
@@ -182,6 +187,9 @@ install -D -m 0644 %{SOURCE3} $RPM_BUILD_ROOT%{_datadir}/pixmaps/%{name}-docs.pn
 %{_datadir}/pixmaps/%{name}-docs.png
 
 %changelog
+* Fri Feb 09 2018 Antonio Trande <sagitterATfedoraproject.org> - 8.0-2
+- Set USE_GCC_STYLE_LTCG CMake option
+
 * Fri Feb 09 2018 Martin Gansser <martinkg@fedoraproject.org> - 8.0-1
 - Update to version 8.0
 - Disable Werror=format-security flag (https://github.com/openclonk/openclonk/issues/64)