diff --git a/cmake.changes b/cmake.changes
index 0fa8f34..1943789 100644
--- a/cmake.changes
+++ b/cmake.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Jun 18 07:07:37 UTC 2019 - Martin Liška <mliska@suse.cz>
+
+- Make %build_ldflags conditional.
+
 -------------------------------------------------------------------
 Mon Jun 17 11:19:06 UTC 2019 - Martin Liška <mliska@suse.cz>
 
diff --git a/cmake.macros b/cmake.macros
index 9711c9a..e168470 100644
--- a/cmake.macros
+++ b/cmake.macros
@@ -28,10 +28,10 @@
         -DCMAKE_C_FLAGS="${CFLAGS:-%optflags} -DNDEBUG" \\\
         -DCMAKE_CXX_FLAGS="${CXXFLAGS:-%optflags} -DNDEBUG" \\\
         -DCMAKE_Fortran_FLAGS="${FFLAGS:-%optflags%{?_fmoddir: -I%_fmoddir}} -DNDEBUG" \\\
-        -DCMAKE_EXE_LINKER_FLAGS="%build_ldflags -Wl,--as-needed -Wl,--no-undefined -Wl,-z,now" \\\
-        -DCMAKE_MODULE_LINKER_FLAGS="%build_ldflags -Wl,--as-needed" \\\
-        -DCMAKE_SHARED_LINKER_FLAGS="%build_ldflags -Wl,--as-needed -Wl,--no-undefined -Wl,-z,now" \\\
-        -DCMAKE_STATIC_LINKER_FLAGS="%build_ldflags" \\\
+        -DCMAKE_EXE_LINKER_FLAGS="%{?build_ldflags} -Wl,--as-needed -Wl,--no-undefined -Wl,-z,now" \\\
+        -DCMAKE_MODULE_LINKER_FLAGS="%{?build_ldflags} -Wl,--as-needed" \\\
+        -DCMAKE_SHARED_LINKER_FLAGS="%{?build_ldflags} -Wl,--as-needed -Wl,--no-undefined -Wl,-z,now" \\\
+        -DCMAKE_STATIC_LINKER_FLAGS="%{?build_ldflags}" \\\
 %if "%{?_lib}" == "lib64" \
         -DLIB_SUFFIX=64 \\\
 %endif \