--- a/cbits/hs-double-conversion.cc
+++ b/cbits/hs-double-conversion.cc
@@ -1,4 +1,4 @@
-#include "double-conversion/double-conversion.h"
+#include <double-conversion/double-conversion.h>
 #include "hs-double-conversion.h"
 #include <stdio.h>
 
--- double-conversion-2.0.4.2/double-conversion.cabal~	2023-01-22 23:29:39.000000000 +0800
+++ double-conversion-2.0.4.2/double-conversion.cabal	2023-01-24 21:09:34.724362392 +0800
@@ -13,15 +13,15 @@
 synopsis:       Fast conversion between single and double precision floating point and text
 build-type:     Simple
 description:
-    A library that performs fast, accurate conversion between 
+    A library that performs fast, accurate conversion between
     floating point and text.
     .
     This library is implemented as bindings to the C++
     @double-conversion@ library written by Florian Loitsch at Google:
     <https://github.com/floitsch/double-conversion>.
     .
-    Now it can convert single precision numbers, and also it can create 
-    Builder, instead of bytestring or text. 
+    Now it can convert single precision numbers, and also it can create
+    Builder, instead of bytestring or text.
     .
     The 'Text' versions of these functions are about 30 times faster
     than the default 'show' implementation for the 'Double' type.
@@ -29,7 +29,7 @@
     The 'ByteString' versions are have very close speed to the 'Text' versions;
     .
     Builder versions (both for Text and Bytestring) are slower on single value,
-    but they are much faster on large number of values 
+    but they are much faster on large number of values
     (up to 20x faster on list with 20000 doubles).
     .
     As a final note, be aware that the @bytestring-show@ package is
@@ -39,24 +39,6 @@
     README.markdown
     benchmarks/*.cabal
     benchmarks/*.hs
-    double-conversion/*.cmake.in
-    double-conversion/AUTHORS
-    double-conversion/CMakeLists.txt
-    double-conversion/COPYING
-    double-conversion/Changelog
-    double-conversion/LICENSE
-    double-conversion/Makefile
-    double-conversion/README
-    double-conversion/SConstruct
-    double-conversion/src/*.cc
-    double-conversion/src/*.h
-    double-conversion/src/CMakeLists.txt
-    double-conversion/src/SConscript
-    double-conversion/test/CMakeLists.txt
-    double-conversion/test/cctest/*.cc
-    double-conversion/test/cctest/*.h
-    double-conversion/test/cctest/CMakeLists.txt
-    double-conversion/test/cctest/SConscript
     include/*.h
     tests/*.hs
 
@@ -82,10 +64,10 @@
       extra-libraries: stdc++ gcc_s_seh-1
     elif impl(ghc >= 8.6.5)
       extra-libraries: stdc++ gcc_s_dw2-1
-    else 
+    else
       extra-libraries: stdc++-6 gcc_s_dw2-1
   else
-    extra-libraries: stdc++
+    extra-libraries: stdc++ double-conversion
 
   if flag(embedded_double_conversion)
     c-sources: