Allow static linking against only the GCC libs
diff --git a/cmake/StaticBuild.cmake b/cmake/StaticBuild.cmake
index 25c1077..5a3d998 100644
--- a/cmake/StaticBuild.cmake
+++ b/cmake/StaticBuild.cmake
@@ -10,9 +10,14 @@
 option(BUILD_STATIC
     "Link statically against most libraries, if possible" OFF)
 
+option(BUILD_STATIC_GCC
+    "Link statically against only libgcc and libstdc++" OFF)
+
 if(BUILD_STATIC)
   message(STATUS "Attempting to link static binaries...")
 
+  set(BUILD_STATIC_GCC 1)
+
   set(JPEG_LIBRARIES "-Wl,-Bstatic -ljpeg -Wl,-Bdynamic")
 
   if(WIN32)
@@ -105,7 +110,9 @@
       set(X11_Xdamage_LIB "-Wl,-Bstatic -lXdamage -Wl,-Bdynamic")
     endif()
   endif()
+endif()
 
+if(BUILD_STATIC_GCC)
   # This ensures that we don't depend on libstdc++ or libgcc_s
   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -nodefaultlibs")
   set(STATIC_BASE_LIBRARIES "-Wl,-Bstatic -lstdc++ -Wl,-Bdynamic")
@@ -122,5 +129,4 @@
     set(STATIC_BASE_LIBRARIES "${STATIC_BASE_LIBRARIES} -lgcc -lgcc_eh -lc")
   endif()
   set(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${STATIC_BASE_LIBRARIES}")
-
 endif()