--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,7 +14,7 @@
 
 set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR})
 set(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR})
-#set(CMAKE_SKIP_BUILD_RPATH on) # no -rdynamic needed ever
+set(CMAKE_SKIP_BUILD_RPATH on) # no -rdynamic needed ever
 
 INCLUDE(CheckIncludeFiles) 
 INCLUDE(CheckCXXSourceCompiles)
@@ -27,7 +27,7 @@
 INCLUDE(GNUInstallDirs)
 
 IF(NOT DEFINED(CMAKE_INSTALL_PREFIX))
-set(CMAKE_INSTALL_PREFIX "/usr/local" CACHE STRING "Target file space")
+#_cmake_modify_IGNORE set(CMAKE_INSTALL_PREFIX "/usr/local" CACHE STRING "Target file space")
 ENDIF()
 IF(NOT DEFINED(LIBDIR))
 	set(LIBDIR "${CMAKE_INSTALL_PREFIX}/lib/${PACKAGE}" CACHE STRING "Location of ${PACKAGE} extra files")
@@ -94,23 +94,6 @@
         _append(ACNG_CXXFLAGS -fvisibility-inlines-hidden)
 endif()
 
-foreach(linkarg -Wl,--as-needed -Wl,-O1 -Wl,--discard-all -Wl,--no-undefined -Wl,--build-id=sha1 -Wl,-fuse-ld=gold)
-	STRING(REGEX REPLACE "=|-|," "" optname "${linkarg}")
-	set(CMAKE_REQUIRED_FLAGS "${linkarg}")
-	CHECK_CXX_COMPILER_FLAG("" "LD_${optname}")
-	if(LD_${optname})
-          _append(CMAKE_EXE_LINKER_FLAGS ${linkarg})
-	endif()
-	set(CMAKE_REQUIRED_FLAGS "")
-endforeach(linkarg)
-
-set(CMAKE_REQUIRED_FLAGS "-Wl,-fuse-ld=gold -Wl,--threads")
-CHECK_CXX_COMPILER_FLAG("" LD_MULTITHREADED)
-if(LD_MULTITHREADED)
-	_append(CMAKE_EXE_LINKER_FLAGS "-Wl,-fuse-ld=gold -Wl,--threads")
-endif()
-set(CMAKE_REQUIRED_FLAGS "")
-
 option(USE_SSL "Use OpenSSL library for TLS and other crypto functionality" on)
 
 IF(CMAKE_SYSTEM MATCHES "Darwin")
@@ -132,15 +115,6 @@
 if(CMAKE_BUILD_TYPE MATCHES Debug)
    set(USE_LTO_DEFAULT off)
    _append(ACNG_COMPFLAGS -DDEBUG)
-else()
-   set(CMAKE_REQUIRED_FLAGS "-Wl,--gc-sections")
-   CHECK_CXX_COMPILER_FLAG("-Os -fdata-sections -ffunction-sections -Wl,--gc-sections" GC_SECTIONS)
-   if(GC_SECTIONS)
-           _append(ACNG_COMPFLAGS -fdata-sections -ffunction-sections)
-           _append(CMAKE_EXE_LINKER_FLAGS -Wl,--gc-sections)
-           _append(CMAKE_SHARED_LINKER_FLAGS -Wl,--gc-sections)
-   endif()
-   set(CMAKE_REQUIRED_FLAGS "")
 endif()
 
 option(USE_LTO "Enable Link Time Optimization (requires modern compilers)" ${USE_LTO_DEFAULT})