examples: fix jemalloc

fixed #7

Author: eastonman

examples/spec2006/build-all.nix

@@ -75,6 +75,7 @@ in stdenv.mkDerivation {
     export CFLAGS="$CFLAGS -static -Wno-format-security -I${riscv64-jemalloc}/include "
     export CXXFLAGS="$CXXFLAGS -static -Wno-format-security -I${riscv64-jemalloc}/include"
     export LDFLAGS="$LDFLAGS -static -ljemalloc -L${riscv64-jemalloc}/lib"
+    export LIBS="${riscv64-jemalloc}/lib/libjemalloc.a"
 
     pushd $SPEC && source shrc && popd
     make copy-all-src

examples/spec2006/default.nix

@@ -133,8 +133,8 @@ let
       ];
       preBuild = ''
         # Add weak attribute to C++ operators, same as jemalloc_cpp.patch
-        sed -i 's/void \*operator new(size_t)/void *operator new(size_t) __attribute__((weak))/g' src/jemalloc_cpp.cpp
-        sed -i 's/void operator delete(void \*)/void operator delete(void *) __attribute__((weak))/g' src/jemalloc_cpp.cpp
+        sed -i '/void/N;s/void[[:space:]]*\*[[:space:]]*operator new/void __attribute__((weak)) *operator new/g' src/jemalloc_cpp.cpp
+        sed -i '/void/N;s/void[[:space:]]*operator delete/void __attribute__((weak)) operator delete/g' src/jemalloc_cpp.cpp
       '';
       # Ensure static libraries are installed
       postInstall = ''