diff --git a/java-openjdk.spec b/java-openjdk.spec
index 0631a81..e2fead1 100644
--- a/java-openjdk.spec
+++ b/java-openjdk.spec
@@ -1,3 +1,26 @@
+# RPM conditionals so as to be able to dynamically produce
+# slowdebug/release builds. See:
+# http://rpm.org/user_doc/conditional_builds.html
+#
+# Examples:
+#
+# Produce release *and* slowdebug builds on x86_64 (default):
+# $ rpmbuild -ba java-1.8.0-openjdk.spec
+#
+# Produce only release builds (no slowdebug builds) on x86_64:
+# $ rpmbuild -ba java-1.8.0-openjdk.spec --without slowdebug
+#
+# Only produce a release build on x86_64:
+# $ fedpkg mockbuild --without slowdebug
+#
+# Only produce a debug build on x86_64:
+# $ fedpkg local --without release
+#
+# Enable slowdebug builds by default on relevant arches.
+%bcond_without slowdebug
+# Enable release builds by default on relevant arches.
+%bcond_without release
+
 # note: parametrized macros are order-sensitive (unlike not-parametrized) even with normal macros
 # also necessary when passing it as parameter to other macros. If not macro, then it is considered a switch
 # see the difference between global and deffine:
@@ -13,8 +36,12 @@
 %global debug_on with full debug on
 %global for_debug for packages with debug on
 
-# by default we build normal build
+%if %{with release}
 %global include_normal_build 1
+%else
+%global include_normal_build 0
+%endif
+
 %if %{include_normal_build}
 %global build_loop1 %{normal_suffix}
 %else
@@ -30,6 +57,7 @@
 %global aot_arches      x86_64
 
 # By default, we build a debug build during main build on JIT architectures
+%if %{with slowdebug}
 %ifarch %{jit_arches}
 %ifnarch %{arm}
 %global include_debug_build 1
@@ -39,6 +67,9 @@
 %else
 %global include_debug_build 0
 %endif
+%else
+%global include_debug_build 0
+%endif
 
 %if %{include_debug_build}
 %global build_loop2 %{debug_suffix}
@@ -832,7 +863,7 @@ Provides: java-%{javaver}-%{origin}-src%{?1} = %{epoch}:%{version}-%{release}
 
 Name:    java-%{origin}
 Version: %{newjavaver}.%{buildver}
-Release: 10%{?dist}
+Release: 11%{?dist}
 # java-1.5.0-ibm from jpackage.org set Epoch to 1 for unknown reasons
 # and this change was brought into RHEL-4. java-1.5.0-ibm packages
 # also included the epoch in their virtual provides. This created a
@@ -1175,7 +1206,7 @@ else
   exit 12
 fi
 if [ %{include_debug_build} -eq 0 -a  %{include_normal_build} -eq 0 ] ; then
-  echo "You have disabled both include_debug_build and include_debug_build. That is a no go."
+  echo "You have disabled both include_debug_build and include_normal_build. That is a no go."
   exit 13
 fi
 %setup -q -c -n %{uniquesuffix ""} -T -a 0
@@ -1761,6 +1792,9 @@ require "copy_jdk_configs.lua"
 
 
 %changelog
+* Thu Jun 21 2018 Severin Gehwolf <sgehwolf@redhat.com> - 1:10.0.1.10-11
+- Expose release/slowdebug builds being produced via conditionals.
+
 * Wed Jun 20 2018 Jiri Vanek <jvanek@redhat.com> - 1:10.0.1.10-10
 - Filter private provides/requires: 'lib.so(SUNWprivate_.*'
 - jsa files changed to 444 to pass rpm verification