Merge branch 'bugfix/sles125-lto' into 'master'

Disable LTO on SLES v12.5

See merge request !19

icinga2.spec

@@ -68,15 +68,6 @@
 %bcond_without unity_build
 %endif
 
-# Disable lto_build for older compiler versions
-# see https://github.com/Icinga/icinga2/issues/7149
-# lto1: internal compiler error: in prune_unused_types_prune, at dwarf2out.c
-%if "%{_vendor}" == "suse" && 0%{?suse_version} <= 1315 || "%{_vendor}" == "redhat" && (0%{?el7} || 0%{?rhel} == 7 || "%{?dist}" == ".el7")
-%bcond_with lto_build
-%else # suse_version 1315
-%bcond_without lto_build
-%endif # suse_version 1315
-
 %bcond_with systemd_and_init
 %bcond_without compat
 %bcond_without livestatus
@@ -372,11 +363,16 @@ CMAKE_OPTS="$CMAKE_OPTS -DICINGA2_UNITY_BUILD=ON"
 %else
 CMAKE_OPTS="$CMAKE_OPTS -DICINGA2_UNITY_BUILD=OFF"
 %endif
-%if %{with lto_build}
+
+# Disable LTO build for older compiler versions
+# see https://github.com/Icinga/icinga2/issues/7149
+# lto1: internal compiler error: in prune_unused_types_prune, at dwarf2out.c
+%if "%{_vendor}" == "suse" && 0%{?suse_version} < 1315 || "%{_vendor}" == "redhat" && (0%{?el7} || 0%{?rhel} == 7 || "%{?dist}" == ".el7")
 CMAKE_OPTS="$CMAKE_OPTS -DICINGA2_LTO_BUILD=ON"
-%else
+%else # suse_version 1315
 CMAKE_OPTS="$CMAKE_OPTS -DICINGA2_LTO_BUILD=OFF"
-%endif
+%endif # suse_version 1315
+
 %if %{with systemd_and_init}
 CMAKE_OPTS="$CMAKE_OPTS -DINSTALL_SYSTEMD_SERVICE_AND_INITSCRIPT=ON"
 %else