--- a/scripts/genout.cmake.in
+++ b/scripts/genout.cmake.in
@@ -14,6 +14,7 @@ set(BINDIR "@CMAKE_CURRENT_BINARY_DIR@")
 
 set(AWK "@AWK@")
 set(CMAKE_C_COMPILER "@CMAKE_C_COMPILER@")
+set(CMAKE_C_COMPILER_ARG1 "@CMAKE_C_COMPILER_ARG1@")
 set(CMAKE_C_FLAGS @CMAKE_C_FLAGS@)
 set(INCDIR "@CMAKE_CURRENT_BINARY_DIR@")
 set(PNG_PREFIX "@PNG_PREFIX@")
@@ -58,7 +59,7 @@ if ("${INPUTEXT}" STREQUAL ".c" AND "${O
     set(PNG_PREFIX_DEF "-DPNG_PREFIX=${PNG_PREFIX}")
   endif()
 
-  execute_process(COMMAND "${CMAKE_C_COMPILER}" "-E"
+  execute_process(COMMAND "${CMAKE_C_COMPILER}" ${CMAKE_C_COMPILER_ARG1} "-E"
                           ${CMAKE_C_FLAGS}
                           ${PLATFORM_C_FLAGS}
                           "-I${SRCDIR}"