diff --git a/S/Sundials@5/build_tarballs.jl b/S/Sundials@5/build_tarballs.jl
new file mode 100644
index 00000000000..a448ae8391f
--- /dev/null
+++ b/S/Sundials@5/build_tarballs.jl
@@ -0,0 +1,86 @@
+using BinaryBuilder
+
+name = "Sundials"
+version = v"5.1.0"
+
+# Collection of sources required to build SundialsBuilder
+sources = [
+    "https://github.com/LLNL/sundials/archive/v$(version).tar.gz" =>
+    "101be83221f9a0ab185ecce04d003ba38660cc71eb81b8a7cf96d1cc08b3d7f9",
+    "./bundled",
+]
+
+# Bash recipe for building across all platforms
+script = raw"""
+cd $WORKSPACE/srcdir/sundials-*/
+if [[ "${target}" == *-mingw* ]]; then
+    atomic_patch -p1 $WORKSPACE/srcdir/patches/Sundials_windows.patch
+fi
+
+CMAKE_FLAGS=(-DCMAKE_INSTALL_PREFIX=${prefix} -DCMAKE_TOOLCHAIN_FILE="${CMAKE_TARGET_TOOLCHAIN}")
+CMAKE_FLAGS+=(-DCMAKE_BUILD_TYPE=Release -DEXAMPLES_ENABLE_C=OFF)
+CMAKE_FLAGS+=(-DKLU_ENABLE=ON -DKLU_INCLUDE_DIR="$prefix/include" -DKLU_LIBRARY_DIR="$libdir")
+CMAKE_FLAGS+=(-DLAPACK_ENABLE=ON)
+
+if [[ ${nbits} == 64 ]] && [[ ${target} != aarch64* ]]; then
+    atomic_patch -p1 $WORKSPACE/srcdir/patches/Sundials_Fortran.patch
+    CMAKE_FLAGS+=(-DLAPACK_LIBRARIES="${libdir}/libopenblas64_.${dlext}")
+else
+    CMAKE_FLAGS+=(-DLAPACK_LIBRARIES="${libdir}/libopenblas.${dlext}")
+fi
+export CFLAGS="-lgfortran"
+if [[ "${target}" == i686-* ]] || [[ "${target}" == x86_64-* ]]; then
+    export CFLAGS="${CFLAGS} -lquadmath"
+elif [[ "${target}" == powerpc64le-* ]]; then
+    export CFLAGS="${CFLAGS} -lgomp -ldl -lm -lpthread -Wl,-rpath-link,/opt/${target}/${target}/lib64"
+fi
+
+mkdir build
+cd build
+cmake "${CMAKE_FLAGS[@]}" ..
+make -j${nproc}
+make install
+
+# Move libraries to ${libdir} on Windows
+if [[ "${target}" == *-mingw* ]]; then
+    mv ${prefix}/lib/libsundials_*.${dlext} "${libdir}"
+fi
+"""
+
+# We attempt to build for all defined platforms
+platforms = supported_platforms()
+platforms = expand_gfortran_versions(platforms)
+
+products = [
+    LibraryProduct("libsundials_arkode", :libsundials_arkode),
+    LibraryProduct("libsundials_cvode", :libsundials_cvode),
+    LibraryProduct("libsundials_cvodes", :libsundials_cvodes),
+    LibraryProduct("libsundials_ida", :libsundials_ida),
+    LibraryProduct("libsundials_idas", :libsundials_idas),
+    LibraryProduct("libsundials_kinsol", :libsundials_kinsol),
+    LibraryProduct("libsundials_nvecmanyvector", :libsundials_nvecmanyvector),
+    LibraryProduct("libsundials_nvecserial", :libsundials_nvecserial),
+    LibraryProduct("libsundials_sunlinsolband", :libsundials_sunlinsolband),
+    LibraryProduct("libsundials_sunlinsoldense", :libsundials_sunlinsoldense),
+    LibraryProduct("libsundials_sunlinsolklu", :libsundials_sunlinsolklu),
+    LibraryProduct("libsundials_sunlinsollapackband", :libsundials_sunlinsollapackband),
+    LibraryProduct("libsundials_sunlinsollapackdense", :libsundials_sunlinsollapackdense),
+    LibraryProduct("libsundials_sunlinsolpcg", :libsundials_sunlinsolpcg),
+    LibraryProduct("libsundials_sunlinsolspbcgs", :libsundials_sunlinsolspbcgs),
+    LibraryProduct("libsundials_sunlinsolspfgmr", :libsundials_sunlinsolspfgmr),
+    LibraryProduct("libsundials_sunlinsolspgmr", :libsundials_sunlinsolspgmr),
+    LibraryProduct("libsundials_sunlinsolsptfqmr", :libsundials_sunlinsolsptfqmr),
+    LibraryProduct("libsundials_sunmatrixband", :libsundials_sunmatrixband),
+    LibraryProduct("libsundials_sunmatrixdense", :libsundials_sunmatrixdense),
+    LibraryProduct("libsundials_sunmatrixsparse", :libsundials_sunmatrixsparse),
+    LibraryProduct("libsundials_sunnonlinsolfixedpoint", :libsundials_sunnonlinsolfixedpoint),
+    LibraryProduct("libsundials_sunnonlinsolnewton", :libsundials_sunnonlinsolnewton),
+]
+
+dependencies = [
+    "OpenBLAS_jll",
+    "SuiteSparse_jll",
+]
+
+# Build the tarballs, and possibly a `build.jl` as well.
+build_tarballs(ARGS, name, version, sources, script, platforms, products, dependencies; preferred_gcc_version = v"6")
diff --git a/S/Sundials@5/bundled/patches/Sundials_Fortran.patch b/S/Sundials@5/bundled/patches/Sundials_Fortran.patch
new file mode 100644
index 00000000000..6320e3c9e9c
--- /dev/null
+++ b/S/Sundials@5/bundled/patches/Sundials_Fortran.patch
@@ -0,0 +1,103 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -757,27 +757,27 @@ if(SUNDIALS_F77_FUNC_CASE AND SUNDIALS_F77_FUNC_UNDERSCORES)
+   # (e.g. g77 mangles mysub to mysub_ and my_sub to my_sub__)
+   if(SUNDIALS_F77_FUNC_CASE MATCHES "LOWER")
+     if(SUNDIALS_F77_FUNC_UNDERSCORES MATCHES "NONE")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## _64")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## _64")
+     elseif(SUNDIALS_F77_FUNC_UNDERSCORES MATCHES "ONE")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## _")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## _")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## _64_")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## _64_")
+     elseif(SUNDIALS_F77_FUNC_UNDERSCORES MATCHES "TWO")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## __")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## __")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## _64__")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## _64__")
+     else()
+       message(FATAL_ERROR "Invalid SUNDIALS_F77_FUNC_UNDERSCORES option.")
+     endif()
+   elseif(SUNDIALS_F77_FUNC_CASE MATCHES "UPPER")
+     if(SUNDIALS_F77_FUNC_UNDERSCORES MATCHES "NONE")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## _64")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## _64")
+     elseif(SUNDIALS_F77_FUNC_UNDERSCORES MATCHES "ONE")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## _")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## _")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## _64_")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## _64_")
+     elseif(SUNDIALS_F77_FUNC_UNDERSCORES MATCHES "TWO")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## __")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## __")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## _64__")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## _64__")
+     else()
+       message(FATAL_ERROR "Invalid SUNDIALS_F77_FUNC_UNDERSCORES option.")
+     endif()
+diff --git a/config/SundialsFortran.cmake b/config/SundialsFortran.cmake
+index 9ad6151..5111f47 100644
+--- a/config/SundialsFortran.cmake
++++ b/config/SundialsFortran.cmake
+@@ -291,42 +291,42 @@ if(NEED_FORTRAN_NAME_MANGLING)
+
+     # Symbols NO underscores
+     if(${CMAKE_Fortran_SCHEME_NO_UNDERSCORES} MATCHES "mysub")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## _64")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_NO_UNDERSCORES} MATCHES "mysub_")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## _")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## _64_")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_NO_UNDERSCORES} MATCHES "mysub__")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## __")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) name ## _64__")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_NO_UNDERSCORES} MATCHES "MYSUB")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## _64")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_NO_UNDERSCORES} MATCHES "MYSUB_")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## _")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## _64_")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_NO_UNDERSCORES} MATCHES "MYSUB__")
+-      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## __")
++      set(F77_MANGLE_MACRO1 "#define SUNDIALS_F77_FUNC(name,NAME) NAME ## _64__")
+     endif()
+
+     # Symbols WITH underscores
+     if(${CMAKE_Fortran_SCHEME_WITH_UNDERSCORES} MATCHES "my_sub")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## _64")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_WITH_UNDERSCORES} MATCHES "my_sub_")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## _")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## _64_")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_WITH_UNDERSCORES} MATCHES "my_sub__")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## __")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) name ## _64__")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_WITH_UNDERSCORES} MATCHES "MY_SUB")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## _64")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_WITH_UNDERSCORES} MATCHES "MY_SUB_")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## _")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## _64_")
+     endif()
+     if(${CMAKE_Fortran_SCHEME_WITH_UNDERSCORES} MATCHES "MY_SUB__")
+-      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## __")
++      set(F77_MANGLE_MACRO2 "#define SUNDIALS_F77_FUNC_(name,NAME) NAME ## _64__")
+     endif()
+
+     # name-mangling scheme has been set
diff --git a/S/Sundials@5/bundled/patches/Sundials_windows.patch b/S/Sundials@5/bundled/patches/Sundials_windows.patch
new file mode 100644
index 00000000000..ab9694404d1
--- /dev/null
+++ b/S/Sundials@5/bundled/patches/Sundials_windows.patch
@@ -0,0 +1,15 @@
+diff --git a/config/FindKLU.cmake b/config/FindKLU.cmake
+
+--- a/config/FindKLU.cmake
++++ b/config/FindKLU.cmake
+@@ -60,10 +60,6 @@ endif ()
+
+ if (NOT SUITESPARSECONFIG_LIBRARY)
+     set(SUITESPARSECONFIG_LIBRARY_NAME suitesparseconfig)
+-    # NOTE: no prefix for this library on windows
+-    if(WIN32 AND NOT MSYS)
+-        set(CMAKE_FIND_LIBRARY_PREFIXES "")
+-    endif()
+     find_library( SUITESPARSECONFIG_LIBRARY ${SUITESPARSECONFIG_LIBRARY_NAME} ${KLU_LIBRARY_DIR} NO_DEFAULT_PATH)
+     mark_as_advanced(SUITESPARSECONFIG_LIBRARY)
+ endif ()