From 492cddec9c3e38e1c4151f37333dc257ea359c71 Mon Sep 17 00:00:00 2001
From: Naruto TAKAHASHI <naruto.takahashi@dena.com>
Date: Fri, 30 Jun 2017 00:34:53 +0900
Subject: [PATCH 1/5] change static library saffix to .bc when build by
 emscripten

---
 CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c57af72..4cdf592 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -85,6 +85,9 @@ endif()
 #  test_big_endian(WORDS_BIGENDIAN)
 #endif()
 
+if (EMSCRIPTEN)
+    set(CMAKE_STATIC_LIBRARY_SUFFIX ".bc")
+endif()
 
 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
 set(CMAKE_CXX_STANDARD 11)

From 601e87a1c59eaabcbf2963665b3680fc48e6581f Mon Sep 17 00:00:00 2001
From: Naruto TAKAHASHI <naruto.takahashi@dena.com>
Date: Fri, 30 Jun 2017 00:35:09 +0900
Subject: [PATCH 2/5] add build_emscripten.sh

---
 scripts/speck/build_emscripten.sh | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100755 scripts/speck/build_emscripten.sh

diff --git a/scripts/speck/build_emscripten.sh b/scripts/speck/build_emscripten.sh
new file mode 100755
index 0000000..ca276d0
--- /dev/null
+++ b/scripts/speck/build_emscripten.sh
@@ -0,0 +1,22 @@
+#!/bin/bash -xe
+
+SCRIPTDIR=`dirname $0`
+SCRIPTDIR=`cd $SCRIPTDIR && pwd -P`
+BASEDIR=${SCRIPTDIR}/../..
+BASEDIR=`cd ${BASEDIR} && pwd -P`
+
+pushd ${BASEDIR} > /dev/null
+/bin/rm -rf build
+/bin/mkdir build
+# build
+pushd build > /dev/null
+emcmake cmake -DENABLE_STATIC=ON -DCMAKE_BUILD_TYPE=Release ..
+make -j8
+popd > /dev/null
+
+# create bundle file
+/bin/rm -rf libs/emscripten
+/bin/mkdir -p libs/emscripten
+/bin/cp ./build/libspeck.bc libs/emscripten
+
+popd > /dev/null

From e473e98852fdfce8f008505f909678ad2ec8b3a3 Mon Sep 17 00:00:00 2001
From: Naruto TAKAHASHI <naruto.takahashi@dena.com>
Date: Fri, 30 Jun 2017 00:35:41 +0900
Subject: [PATCH 3/5] update README

---
 README.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README.md b/README.md
index 248cd29..d9f7c30 100644
--- a/README.md
+++ b/README.md
@@ -170,5 +170,11 @@ scripts\speck\build_win.bat
 
 dll library is outputted to `libs/windows` directory.
 
+## emscripten
+
+```
+./scripts/speck/build_emscripten.sh
+```
+
 # License
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2FNaruto%2Fsimon-speck-c.svg?type=large)](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2FNaruto%2Fsimon-speck-c?ref=badge_large)

From 8c0b55d155ace7b328636829e3f15b760811ef04 Mon Sep 17 00:00:00 2001
From: Naruto TAKAHASHI <naruto.takahashi@dena.com>
Date: Wed, 19 Jul 2017 12:53:40 +0900
Subject: [PATCH 4/5] export apis

---
 CMakeLists.txt        | 2 ++
 include/speck/speck.h | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4cdf592..b7681d8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -87,6 +87,8 @@ endif()
 
 if (EMSCRIPTEN)
     set(CMAKE_STATIC_LIBRARY_SUFFIX ".bc")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s WASM=1 -DEMSCRIPTEN")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s WASM=1 -DEMSCRIPTEN")
 endif()
 
 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
diff --git a/include/speck/speck.h b/include/speck/speck.h
index b28b1d6..f4b0e94 100644
--- a/include/speck/speck.h
+++ b/include/speck/speck.h
@@ -24,6 +24,9 @@
 #define SPECK_H
 
 #include <stdint.h>
+#if EMSCRIPTEN
+#include <emscripten/emscripten.h>
+#endif
 
 #ifdef SPECKAPI
 #undef SPECKAPI
@@ -31,6 +34,8 @@
 
 #if _WIN32
 #define SPECKAPI __declspec(dllexport)
+#elif EMSCRIPTEN
+#define SPECKAPI EMSCRIPTEN_KEEPALIVE
 #else
 #ifdef __GNUC__
 #if __GNUC__ >= 4

From 76d5525ffc52b2f69d314c11230401557e54611f Mon Sep 17 00:00:00 2001
From: Naruto TAKAHASHI <tnaruto@gmail.com>
Date: Mon, 2 Oct 2017 22:15:49 +0900
Subject: [PATCH 5/5] update

---
 CMakeLists.txt                    |  6 +++---
 scripts/speck/build_emscripten.sh | 13 ++++++++++---
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b7681d8..d6a8e83 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -86,9 +86,9 @@ endif()
 #endif()
 
 if (EMSCRIPTEN)
-    set(CMAKE_STATIC_LIBRARY_SUFFIX ".bc")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s WASM=1 -DEMSCRIPTEN")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s WASM=1 -DEMSCRIPTEN")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DEMSCRIPTEN")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DEMSCRIPTEN")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --memory-init-file 0")
 endif()
 
 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
diff --git a/scripts/speck/build_emscripten.sh b/scripts/speck/build_emscripten.sh
index ca276d0..e7e2070 100755
--- a/scripts/speck/build_emscripten.sh
+++ b/scripts/speck/build_emscripten.sh
@@ -11,12 +11,19 @@ pushd ${BASEDIR} > /dev/null
 # build
 pushd build > /dev/null
 emcmake cmake -DENABLE_STATIC=ON -DCMAKE_BUILD_TYPE=Release ..
-make -j8
+cmake --build .
+
+# rename .c.o to .bc
+ar x libspeck.a
+for f in *.c.o; do
+    mv $f ${f%.c.o}.bc
+done
+zip libspeck.zip *.bc
+
 popd > /dev/null
 
-# create bundle file
 /bin/rm -rf libs/emscripten
 /bin/mkdir -p libs/emscripten
-/bin/cp ./build/libspeck.bc libs/emscripten
+/bin/cp ./build/libspeck.zip libs/emscripten
 
 popd > /dev/null