diff --git a/INSTALL.md b/INSTALL.md
index 1fd9e76b2..b4fa8f782 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -148,14 +148,15 @@ C++11 features.
     gpgcheck=0
     REPO
 
-    yum install -y devtoolset-2-gcc devtoolset-2-gcc-c++ devtoolset-2-binutils
+Dependencies to devtools-2 are used in the RPM SPEC, so the correct tools
+should be used for building.
 
-    export LD_LIBRARY_PATH=/opt/rh/devtoolset-2/root/usr/lib:$LD_LIBRARY_PATH
-    export PATH=/opt/rh/devtoolset-2/root/usr/bin:$PATH
-    ln -sf /opt/rh/devtoolset-2/root/usr/bin/ld.bfd /opt/rh/devtoolset-2/root/usr/bin/ld
-    for file in `find /opt/rh/devtoolset-2/root/usr/include/c++ -name c++config.h`; do
-      echo '#define _GLIBCXX__PTHREADS' >> $file
-    done
+As an alternative, you can use newer Boost packages provided on
+[packages.icinga.com](https://packages.icinga.com/epel).
+
+    cat >$HOME/.rpmmacros <<MACROS
+    %build_icinga_org 1
+    MACROS
 
 #### SLES 11
 
diff --git a/icinga2.spec b/icinga2.spec
index 2928aa2bb..7c0ed6ab0 100644
--- a/icinga2.spec
+++ b/icinga2.spec
@@ -97,8 +97,15 @@ BuildRequires: gcc48-c++
 BuildRequires: libstdc++48-devel
 BuildRequires: libopenssl1-devel
 %else
+%if "%{_vendor}" == "redhat" && (0%{?el5} || 0%{?rhel} == 5 || "%{?dist}" == ".el5" || 0%{?el6} || 0%{?rhel} == 6 || "%{?dist}" == ".el6")
+# Requires devtoolset-2 scl
+BuildRequires: devtoolset-2-gcc-c++
+BuildRequires: devtoolset-2-libstdc++-devel
+%define scl_enable scl enable devtoolset-2 --
+%else
 BuildRequires: gcc-c++
 BuildRequires: libstdc++-devel
+%endif
 BuildRequires: openssl-devel
 %endif
 BuildRequires: cmake
@@ -332,7 +339,7 @@ CMAKE_OPTS="$CMAKE_OPTS -DICINGA2_PLUGINDIR=%{_prefix}/lib/nagios/plugins"
 CMAKE_OPTS="$CMAKE_OPTS -DUSE_SYSTEMD=ON"
 %endif
 
-cmake $CMAKE_OPTS -DCMAKE_C_FLAGS:STRING="%{optflags} %{?march_flag}" -DCMAKE_CXX_FLAGS:STRING="%{optflags} %{?march_flag}" .
+%{?scl_enable} cmake $CMAKE_OPTS -DCMAKE_C_FLAGS:STRING="%{optflags} %{?march_flag}" -DCMAKE_CXX_FLAGS:STRING="%{optflags} %{?march_flag}" .
 
 make %{?_smp_mflags}