diff --git a/emptyepsilon.spec b/emptyepsilon.spec
index 379aea0..0e0ce90 100644
--- a/emptyepsilon.spec
+++ b/emptyepsilon.spec
@@ -41,7 +41,8 @@ BuildRequires:  sfml2-devel
 BuildRequires:  xorg-x11
 %if 0%{?sle_version:1}
 # if sle_version is defined, this is not tumbleweed
-BuildRequires:  gcc10 gcc10-c++
+BuildRequires:  gcc10
+BuildRequires:  gcc10-c++
 %endif
 
 %description
@@ -56,30 +57,38 @@ pushd SeriousProton-EE-%{version}
 %patch0 -p1
 popd
 %patch1 -p1
+
 # extract bundled dependencies
 mkdir -p SeriousProton/externals/basis
 bsdtar xvf $RPM_SOURCE_DIR/basis_universal.zip --strip-components=1 -C SeriousProton/externals/basis
 mkdir -p externals/meshoptimizer
 bsdtar xvf $RPM_SOURCE_DIR/meshoptimizer.zip --strip-components=1 -C externals/meshoptimizer
 
+# symlink dependencies into build dir
+mkdir -p build
+pushd build
+ln -s ../SeriousProton-EE-%{version}
+ln -s ../SeriousProton
+ln -s ../externals
+popd
+
 %build
 %if 0%{?sle_version:1}
 # if sle_version is defined, this is not tumbleweed
 export CC=gcc-10
 export CXX=g++-10
 %endif
-cmake -DSERIOUS_PROTON_DIR="SeriousProton-EE-%{version}" \
+%cmake -DSERIOUS_PROTON_DIR="SeriousProton-EE-%{version}" \
  -DCMAKE_INSTALL_PREFIX=%{_prefix} \
  -DCMAKE_BUILD_TYPE=Release \
  -DCPACK_PACKAGE_VERSION_MAJOR="$(echo %{version} | cut -d. -f1)" \
  -DCPACK_PACKAGE_VERSION_MINOR="$(echo %{version} | cut -d. -f2)" \
  -DCPACK_PACKAGE_VERSION_PATCH="$(echo %{version} | cut -d. -f3)" \
- -DOpenGL_GL_PREFERENCE=GLVND \
- .
-%make_build -j 8
+ -DOpenGL_GL_PREFERENCE=GLVND
+%cmake_build -j 8
 
 %install
-%make_install
+%cmake_install
 
 %files
 %doc README.md