diff --git a/build.bat b/build.bat
index d3a3f453..81427182 100644
--- a/build.bat
+++ b/build.bat
@@ -73,7 +73,7 @@ set cl_linker=
 set clang_common=  -I..\src\ -I..\local\ -gcodeview -fdiagnostics-absolute-paths -Wall -Wno-unknown-warning-option -Wno-missing-braces -Wno-unused-function -Wno-unused-parameter -Wno-writable-strings -Wno-missing-field-initializers -Wno-unused-value -Wno-unused-variable -Wno-unused-local-typedef -Wno-deprecated-register -Wno-deprecated-declarations -Wno-unused-but-set-variable -Wno-single-bit-bitfield-constant-conversion -Wno-compare-distinct-pointer-types -Wno-initializer-overrides -Wno-incompatible-pointer-types-discards-qualifiers -Xclang -flto-visibility-public-std -D_USE_MATH_DEFINES -Dstrdup=_strdup -Dgnu_printf=printf -ferror-limit=10000 -mcx16
 set clang_debug=   call clang -g -O0 -DBUILD_DEBUG=1 %clang_common% %auto_compile_flags%
 set clang_release= call clang -g -O2 -DBUILD_DEBUG=0 %clang_common% %auto_compile_flags%
-set clang_link=    -fuse-ld=lld -Xlinker /MANIFEST:EMBED -Xlinker /pdbaltpath:%%%%_PDB%%%% -Xlinker /NATVIS:"%~dp0\src\natvis\base.natvis"
+set clang_link=    -fuse-ld=lld -Xlinker /MANIFEST:EMBED -Xlinker /pdbaltpath:%%%%_PDB%%%% -Xlinker /NATVIS:"%~dp0\src\natvis\base.natvis" -Xlinker /opt:ref -Xlinker /opt:icf
 set clang_out=     -o
 set clang_linker=  -Xlinker