diff --git a/CMake/CMakeMacros.cmake b/CMake/CMakeMacros.cmake
index 5049e4fbc7..7e85ddd870 100644
--- a/CMake/CMakeMacros.cmake
+++ b/CMake/CMakeMacros.cmake
@@ -55,3 +55,4 @@ function(disable_project_warnings projectName)
     endif()
   endif()
 endfunction()
+
diff --git a/StepmaniaCore.cmake b/StepmaniaCore.cmake
index a982526613..2a9109f523 100644
--- a/StepmaniaCore.cmake
+++ b/StepmaniaCore.cmake
@@ -56,36 +56,31 @@ check_include_files(stdint.h HAVE_STDINT_H)
 check_include_files(endian.h HAVE_ENDIAN_H)
 check_include_files(sys/endian.h HAVE_SYS_ENDIAN_H)
 check_include_files(machine/endian.h HAVE_MACHINE_ENDIAN_H)
-check_include_files(sys/param.h HAS_SYS_PARAM_H)
-check_include_files(sys/utsname.h HAS_SYS_UTSNAME_H)
+check_include_files(sys/param.h HAVE_SYS_PARAM_H)
+check_include_files(sys/utsname.h HAVE_SYS_UTSNAME_H)
 check_include_files(fcntl.h HAVE_FCNTL_H)
 check_include_files(unistd.h HAVE_UNISTD_H)
 
 include(CheckFunctionExists)
 include(CheckSymbolExists)
+include(CheckCXXSymbolExists)
 if (WIN32 AND MSVC)
   check_function_exists(_mkdir HAVE__MKDIR)
   check_function_exists(_snprintf HAVE__SNPRINTF)
-  check_symbol_exists(powf math.h HAVE_POWF)
-  check_symbol_exists(sqrtf math.h HAVE_SQRTF)
-  check_symbol_exists(sinf math.h HAVE_SINF)
-  check_symbol_exists(tanf math.h HAVE_TANF)
-  check_symbol_exists(cosf math.h HAVE_COSF)
-  check_symbol_exists(acosf math.h HAVE_ACOSF)
 else()
   check_function_exists(mkdir HAVE_MKDIR)
   check_function_exists(snprintf HAVE_SNPRINTF)
-  check_function_exists(powf HAVE_POWF)
-  check_function_exists(sqrtf HAVE_SQRTF)
-  check_function_exists(sinf HAVE_SINF)
-  check_function_exists(tanf HAVE_TANF)
-  check_function_exists(cosf HAVE_COSF)
-  check_function_exists(acosf HAVE_ACOSF)
 endif()
-check_function_exists(truncf HAVE_TRUNCF)
-check_function_exists(roundf HAVE_ROUNDF)
-check_function_exists(lrintf HAVE_LRINTF)
-check_function_exists(strtof HAVE_STRTOF)
+check_cxx_symbol_exists(powf cmath HAVE_POWF)
+check_cxx_symbol_exists(sqrtf cmath HAVE_SQRTF)
+check_cxx_symbol_exists(sinf cmath HAVE_SINF)
+check_cxx_symbol_exists(tanf cmath HAVE_TANF)
+check_cxx_symbol_exists(cosf cmath HAVE_COSF)
+check_cxx_symbol_exists(acosf cmath HAVE_ACOSF)
+check_cxx_symbol_exists(truncf cmath HAVE_TRUNCF)
+check_cxx_symbol_exists(roundf cmath HAVE_ROUNDF)
+check_cxx_symbol_exists(lrintf cmath HAVE_LRINTF)
+check_cxx_symbol_exists(strtof cstdlib HAVE_STRTOF)
 check_symbol_exists(M_PI math.h HAVE_M_PI)
 
 # Checks to make it easier to work with 32-bit/64-bit builds if required.
diff --git a/src/CMakeData-gtk.cmake b/src/CMakeData-gtk.cmake
index 38bd3a80c7..7082744c79 100644
--- a/src/CMakeData-gtk.cmake
+++ b/src/CMakeData-gtk.cmake
@@ -26,4 +26,7 @@ list(APPEND SM_GTK_INCLUDE_DIRS
   "${SM_SRC_DIR}/arch/LoadingWindow"
   "${GTK2_INCLUDE_DIRS}"
 )
+
+sm_add_compile_definition("GtkModule" CMAKE_POWERED)
+
 target_include_directories("GtkModule" PUBLIC ${SM_GTK_INCLUDE_DIRS})
diff --git a/src/RageException.h b/src/RageException.h
index 803bcb4c4d..210b8bac49 100644
--- a/src/RageException.h
+++ b/src/RageException.h
@@ -1,5 +1,10 @@
 #ifndef RAGE_EXCEPTION_H
 #define RAGE_EXCEPTION_H
+
+#if defined(CMAKE_POWERED)
+#include "config.hpp"
+#endif
+
 /**
  * @brief Namespace for throwing fatal errors.
  *