CMakeLists: arm: fixup lto option

This fixes an issue introduced in [1], we incorrectly append the `USING_LTO` option even when it's not defined. This ensures we check that it is defined first. [1] #2457 Signed-off-by: Wilfred Mallawa <[email protected]>
DMTF · Dec 18, 2023 · 1eb447d · 1eb447d
1 parent 2756b67
commit 1eb447d
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -322,7 +322,11 @@ if(CMAKE_SYSTEM_NAME MATCHES "Linux")
             SET(FLTO_COMPILE_OPTS "-fno-lto")
             SET(FLTO_LINK_OPTS "-fno-lto")
         else()
-            SET(FLTO_COMPILE_OPTS "-flto" "-${USING_LTO}")
+            if (DEFINED USING_LTO)
+                SET(FLTO_COMPILE_OPTS "-flto" "-${USING_LTO}")
+            else()
+                SET(FLTO_COMPILE_OPTS "-flto")
+            endif()
             SET(FLTO_LINK_OPTS "-flto")
         endif()
         SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")