diff --git a/java-1.8.0-openjdk.spec b/java-1.8.0-openjdk.spec
index 9d3201c..8cfbfd9 100644
--- a/java-1.8.0-openjdk.spec
+++ b/java-1.8.0-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
+
 %define _find_debuginfo_opts -g
 # 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
@@ -14,8 +37,12 @@
 %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 jit_arches      %{ix86} x86_64 sparcv9 sparc64 %{aarch64} %{power64}
 
 # 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
 
 # On x86_64 and AArch64, we use the Shenandoah HotSpot
 %ifarch x86_64 %{aarch64}
@@ -920,7 +951,7 @@ Provides: java-%{javaver}-%{origin}-accessibility = %{epoch}:%{version}-%{releas
 
 Name:    java-%{javaver}-%{origin}
 Version: %{javaver}.%{updatever}
-Release: 10.%{buildver}%{?dist}
+Release: 11.%{buildver}%{?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
@@ -1444,7 +1475,7 @@ 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
@@ -2215,6 +2246,9 @@ require "copy_jdk_configs.lua"
 %endif
 
 %changelog
+* Wed Jun 20 2018 Severin Gehwolf <sgehwolf@redhat.com> - 1:1.8.0.172-11.b11
+- Expose release/slowdebug builds being produced via conditionals.
+
 * Wed Jun 20 2018 Jiri Vanek <jvanek@redhat.com> - 11:1.8.0.172-10.b11
 - jsa files changed to 444 to pass rpm verification