diff --git a/java-11-openjdk.spec b/java-11-openjdk.spec
index 387d089..66cc569 100644
--- a/java-11-openjdk.spec
+++ b/java-11-openjdk.spec
@@ -30,6 +30,7 @@
 %bcond_with timezonejava
 
 %bcond_with binary
+%bcond_without clang
 
 # The -g flag says to use strip -g instead of full strip on DSOs or EXEs.
 # This fixes detailed NMT and other tools which need minimal debug info.
@@ -1162,7 +1163,9 @@ Patch10: clang_stack.patch
 # JDK 9+ only patches
 #
 #############################################
+%if %{with clang}
 BuildRequires: clang
+%endif
 BuildRequires: autoconf
 BuildRequires: automake
 BuildRequires: binutils
@@ -1483,8 +1486,10 @@ sed -e "s:@NSS_LIBDIR@:%{NSS_LIBDIR}:g" %{SOURCE11} > nss.cfg
 
 
 %build
+%if %{with clang}
 export CC="clang"
 export CXX="clang++"
+%endif
 # How many CPU's do we have?
 export NUM_PROC=%(/usr/bin/getconf _NPROCESSORS_ONLN 2> /dev/null || :)
 export NUM_PROC=${NUM_PROC:-1}
@@ -1570,7 +1575,10 @@ bash ../configure \
     --with-jvm-features=zgc \
 %endif
     --disable-warnings-as-errors \
-    --with-toolchain-type="clang"
+%if %{with clang}
+    --with-toolchain-type="clang" \
+%endif
+    --
 
 # Debug builds don't need same targets as release for
 # build speed-up