Merge branch 'master' of github.com:mruby/mruby

18 files changed, 480 insertions, 2 deletions

diff --git a/.gitignore b/.gitignore
index 1f700fa66..9389c11da 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,6 +19,7 @@ cscope.out
 /bin
 /mrblib/mrblib.c
 /mrblib/*.*tmp
+/build
 /test/mrbtest
 /test/mrbtest.c
 /test/*.*tmp
diff --git a/AUTHORS b/AUTHORS
index b39a69220..b4554be64 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -4,3 +4,4 @@ Original Authors "mruby developers" are:
    Kyushu Institute of Technology
    Network Applied Communication Laboratory, Inc.
    Daniel Bovensiepen
+   Jon Maken
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 000000000..ee97ad8b4
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,109 @@
+# CMake build system for mruby
+# License: released under the same license as mruby
+# Author: [email protected]
+# Author: [email protected]
+#
+# Usage example:
+#   1. Ensure CMake, Bison, and a build toolchain are on `PATH`
+#   2. Change to a build directory outside source tree, eg - `build` subdir
+#   3. Create build Makefiles or project files.
+#        `cmake ..`  (UNIX-like system)
+#        `cmake -G "MSYS Makefiles" ..`
+#        `cmake -G "Visual Studio 10" ..`
+#        `cmake -G "NMake Makefiles" ..`
+#      ** to cross-compile: add -DCMAKE_TOOLCHAIN_FILE=/path/to/toolchain/file
+#      ** to set install dir: add -DCMAKE_INSTALL_PREFIX=/path/to/installdir
+#  4a. Build: `make`  (to make noisy, add `VERBOSE=1`)
+#  4b. Build and test: `make all test`
+#  4c. Build, test, and install: `make all test install`
+#  4d. Build, test, and package: `make all test package`
+
+cmake_minimum_required(VERSION 2.8.8 FATAL_ERROR)
+
+# Default build mode is Release With Debug Info unless specified
+if(NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING
+      "Choose build type: empty Debug Release RelWithDebInfo MinSizeRel"
+      FORCE)
+  message(STATUS "Build type not set, defaulting to 'RelWithDebInfo'")
+endif()
+
+project(mruby C)
+
+# TODO stop polluting source tree with CMakeFiles/ and CMakeCache.txt
+#      on build location check failure
+# Make sure we are not trying to generate in in-tree build unless building
+# with a MSVC IDE where it's OK.
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE)
+  message(FATAL_ERROR
+          "\nIn-source builds are not allowed as CMake would overwrite the "
+          "Makefiles distributed with mruby. Please change to the 'build' "
+          "subdirectory and run CMake from there.")
+endif()
+
+if(COMMAND cmake_policy)
+  cmake_policy(SET CMP0003 NEW)  # don't split absolute link paths
+  cmake_policy(SET CMP0012 NEW)  # recognize number & boolean literals
+  cmake_policy(SET CMP0015 NEW)  # convert relative link paths to absolute
+endif(COMMAND cmake_policy)
+
+# Match original Makefile's default in-tree install.
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX ${CMAKE_SOURCE_DIR} CACHE PATH
+    "Install path prefix prepended to install directories."
+    FORCE
+    )
+endif()
+
+# TODO refactor to use an option when adding shared lib support
+set(BUILD_SHARED_LIBS OFF)
+
+# Version of mruby, useful for versoning .so and .dll files.
+# TODO automate by parsing src/version.h -or- extract git info?
+set(MRUBY_VERSION 1.0.0dev)
+string(REGEX MATCH "^[0-9]+[.][0-9]+" MRUBY_SOVERSION ${MRUBY_VERSION})
+string(REPLACE "." "" MRUBY_DLL_SHORTVER ${MRUBY_SOVERSION})
+
+# Search in the `cmake` directory for custom CMake helper modules.
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/modules")
+include(IntrospectSystem)
+
+# Search for C header files in these directories.
+include_directories("${CMAKE_SOURCE_DIR}/include" "${CMAKE_SOURCE_DIR}/src")
+
+# TODO re-enable (and implement) if needed
+# On some 64-bit platforms, libraries should be installed into `lib64'
+# instead of `lib'.  Set this to 64 to do that.
+#set(LIB_SUFFIX "" CACHE STRING "Suffix for 'lib' directories, e.g. '64'")
+
+# build the components
+add_subdirectory(src)
+add_subdirectory(mrblib)
+add_subdirectory(tools)
+add_subdirectory(test)
+
+# install the header files
+install(FILES include/mruby.h DESTINATION include)
+install(FILES include/mrbconf.h DESTINATION include)
+install(DIRECTORY include/mruby DESTINATION include FILES_MATCHING PATTERN "*.h")
+
+# TODO refactor once proper versioning scheme implemented
+# archive packaging
+set(CPACK_GENERATOR "TGZ;ZIP")
+string(TOLOWER ${CMAKE_SYSTEM_NAME} MRUBY_HOST)
+if(CMAKE_C_COMPILER_VERSION)
+  string(REPLACE "." "" MRUBY_GCC_VERSION ${CMAKE_C_COMPILER_VERSION})
+endif()
+
+# TODO add build info suffix for non-Windows builds?
+if(MINGW)
+  set(MRUBY_BUILD "-mingw${MRUBY_GCC_VERSION}")
+elseif(MSVC)
+  set(MRUBY_BUILD "-msvc${MSVC_VERSION}")
+endif()
+set(CPACK_PACKAGE_FILE_NAME
+  "${CMAKE_PROJECT_NAME}-${MRUBY_VERSION}-${MRUBY_HOST}${MRUBY_BUILD}"
+  )
+include(CPack)
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/build/.gitkeep b/build/.gitkeep
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/build/.gitkeep
diff --git a/cmake/Toolchain-Arch-mingw32.cmake.sample b/cmake/Toolchain-Arch-mingw32.cmake.sample
new file mode 100644
index 000000000..727fa04ce
--- /dev/null
+++ b/cmake/Toolchain-Arch-mingw32.cmake.sample
@@ -0,0 +1,30 @@
+# Sample toolchain file for building for Windows from an Arch Linux system.
+#
+# Typical usage:
+#    1) install cross compiler: `sudo pacman -S mingw32-gcc`
+#    2) cp cmake/Toolchain-Arch-mingw32.cmake.sample ~/Toolchain-Arch-mingw32.cmake
+#    3) tweak toolchain values as needed
+#    4) cd build
+#    5) cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-Arch-mingw32.cmake ..
+
+# name of the target OS on which the built artifacts will run
+# and the toolchain prefix
+set(CMAKE_SYSTEM_NAME Windows)
+set(TOOLCHAIN_PREFIX i486-mingw32)
+
+# cross compilers to use for C and C++
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+set(CMAKE_RC_COMPILER ${TOOLCHAIN_PREFIX}-windres)
+
+# target environment on the build host system
+#   set 1st to dir with the cross compiler's C/C++ headers/libs
+#   set 2nd to dir containing personal cross development headers/libs
+set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX} ~/crossdev/w32)
+
+# modify default behavior of FIND_XXX() commands to
+# search for headers/libs in the target environment and
+# search for programs in the build host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
diff --git a/cmake/Toolchain-OSX-mingw32.cmake.sample b/cmake/Toolchain-OSX-mingw32.cmake.sample
new file mode 100644
index 000000000..4926645e7
--- /dev/null
+++ b/cmake/Toolchain-OSX-mingw32.cmake.sample
@@ -0,0 +1,32 @@
+# Sample toolchain file for building for Windows from an OS X system.
+#
+# Typical usage:
+#    1) install a mingw-w64 cross compiler
+#       a) darwin toolchain targeting win32: http://sourceforge.net/projects/mingw-w64/files/Toolchains targetting Win32/
+#       b) extract toolchain into ~/mingw/w32
+#    2) cp cmake/Toolchain-OSX-mingw32.cmake.sample ~/Toolchain-OSX-mingw32.cmake
+#    3) tweak toolchain values as needed
+#    4) cd build
+#    5) cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-OSX-mingw32.cmake ..
+
+# name of the target OS on which the built artifacts will run
+# and the toolchain prefix
+set(CMAKE_SYSTEM_NAME Windows)
+set(TOOLCHAIN_PREFIX i686-w64-mingw32)
+
+# cross compilers to use for C and C++
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+set(CMAKE_RC_COMPILER ${TOOLCHAIN_PREFIX}-windres)
+
+# target environment(s) on the build host system
+#   set 1st to dir with the cross compiler's C/C++ headers/libs
+#   set 2nd to dir containing personal cross development headers/libs
+set(CMAKE_FIND_ROOT_PATH ~/mingw/w32/${TOOLCHAIN_PREFIX} ~/crossdev/w32)
+
+# modify default behavior of FIND_XXX() commands to
+# search for headers/libs in the target environment and
+# search for programs in the build host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
diff --git a/cmake/Toolchain-Ubuntu-mingw32.cmake.sample b/cmake/Toolchain-Ubuntu-mingw32.cmake.sample
new file mode 100644
index 000000000..adc24e501
--- /dev/null
+++ b/cmake/Toolchain-Ubuntu-mingw32.cmake.sample
@@ -0,0 +1,30 @@
+# Sample toolchain file for building for Windows from an Ubuntu Linux system.
+#
+# Typical usage:
+#    1) install cross compiler: `sudo apt-get install mingw-w64 g++-mingw-w64`
+#    2) cp cmake/Toolchain-Ubuntu-mingw32.cmake.sample ~/Toolchain-Ubuntu-mingw32.cmake
+#    3) tweak toolchain values as needed
+#    4) cd build
+#    5) cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-Ubuntu-mingw32.cmake ..
+
+# name of the target OS on which the built artifacts will run
+# and the toolchain prefix
+set(CMAKE_SYSTEM_NAME Windows)
+set(TOOLCHAIN_PREFIX i686-w64-mingw32)
+
+# cross compilers to use for C and C++
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+set(CMAKE_RC_COMPILER ${TOOLCHAIN_PREFIX}-windres)
+
+# target environment on the build host system
+#   set 1st to dir with the cross compiler's C/C++ headers/libs
+#   set 2nd to dir containing personal cross development headers/libs
+set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX} ~/crossdev/w32)
+
+# modify default behavior of FIND_XXX() commands to
+# search for headers/libs in the target environment and
+# search for programs in the build host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
diff --git a/cmake/modules/IntrospectSystem.cmake b/cmake/modules/IntrospectSystem.cmake
new file mode 100644
index 000000000..e148563fa
--- /dev/null
+++ b/cmake/modules/IntrospectSystem.cmake
@@ -0,0 +1,52 @@
+# system capabilities checking
+
+# initial system defaults
+if(CMAKE_COMPILER_IS_GNUCC)
+  set(MRUBY_DEFAULT_CFLAGS "-Wall -Werror-implicit-function-declaration")
+  set(CMAKE_C_FLAGS "${MRUBY_DEFAULT_CFLAGS}")
+  set(CMAKE_C_FLAGS_DEBUG "-O3 -ggdb")
+  set(CMAKE_C_FLAGS_MINSIZEREL "-Os -DNDEBUG")
+  set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O3 -g")
+  set(CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG")
+
+  set(MRUBY_LIBS m)
+else()
+  if(MSVC)
+    # TODO default MSVC flags
+    add_definitions(
+      -D_CRT_SECURE_NO_WARNINGS
+      -wd4018  # suppress 'signed/unsigned mismatch'
+      )
+  endif()
+endif()
+
+if(MSVC)
+  add_definitions(
+    -DRUBY_EXPORT   # required by oniguruma.h
+    )
+endif()
+
+
+# include helpers
+include(CheckIncludeFile)
+include(CheckSymbolExists)
+
+# header checks
+CHECK_INCLUDE_FILE(string.h HAVE_STRING_H)
+if(HAVE_STRING_H)
+  add_definitions(-DHAVE_STRING_H)
+endif()
+
+CHECK_INCLUDE_FILE(float.h HAVE_FLOAT_H)
+if(HAVE_FLOAT_H)
+  add_definitions(-DHAVE_FLOAT_H)
+endif()
+
+
+# symbol checks
+CHECK_SYMBOL_EXISTS(gettimeofday sys/time.h HAVE_GETTIMEOFDAY)
+if(NOT HAVE_GETTIMEOFDAY)
+  add_definitions(-DNO_GETTIMEOFDAY)
+endif()
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/mrblib/CMakeLists.txt b/mrblib/CMakeLists.txt
new file mode 100644
index 000000000..b9fa22587
--- /dev/null
+++ b/mrblib/CMakeLists.txt
@@ -0,0 +1,62 @@
+# transform mruby's standard lib into a C library
+
+file(GLOB MRBLIB_SRC_RB "*.rb")
+
+if(CMAKE_CROSSCOMPILING)
+  # create native tools and `mrblib.ctmp` required to build `mrblib.c`
+  include(ExternalProject)
+  ExternalProject_Add(mruby-native
+    DOWNLOAD_COMMAND ""
+    SOURCE_DIR "${CMAKE_SOURCE_DIR}"
+    CONFIGURE_COMMAND "${CMAKE_COMMAND}" "${CMAKE_SOURCE_DIR}"
+    INSTALL_COMMAND ""
+    BINARY_DIR "${CMAKE_BINARY_DIR}/native"
+    )
+
+  # aggregate mruby's standard library as a single C file
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/mrblib.c"
+    DEPENDS mruby-native init_mrblib.c "${CMAKE_BINARY_DIR}/native/mrblib/mrblib.ctmp"
+    COMMAND "${CMAKE_BINARY_DIR}/native/tools/xpcat/xpcat"
+            -o "${CMAKE_CURRENT_BINARY_DIR}/mrblib.c"
+            "${CMAKE_CURRENT_SOURCE_DIR}/init_mrblib.c"
+            "${CMAKE_BINARY_DIR}/native/mrblib/mrblib.ctmp"
+    )
+else()
+  # generate a single rb file from all existing ones
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/mrblib.rbtmp"
+    DEPENDS xpcat
+    COMMAND xpcat -o "${CMAKE_CURRENT_BINARY_DIR}/mrblib.rbtmp" ${MRBLIB_SRC_RB}
+    )
+
+  # mruby compile and generate C byte array representation
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/mrblib.ctmp"
+    DEPENDS mrbc "${CMAKE_CURRENT_BINARY_DIR}/mrblib.rbtmp"
+    COMMAND mrbc -Bmrblib_irep -o"${CMAKE_CURRENT_BINARY_DIR}/mrblib.ctmp"
+                 "${CMAKE_CURRENT_BINARY_DIR}/mrblib.rbtmp"
+    )
+
+  # aggregate mruby's standard library as a single C file
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/mrblib.c"
+    DEPENDS xpcat init_mrblib.c "${CMAKE_CURRENT_BINARY_DIR}/mrblib.ctmp"
+    COMMAND xpcat -o "${CMAKE_CURRENT_BINARY_DIR}/mrblib.c"
+                     "${CMAKE_CURRENT_SOURCE_DIR}/init_mrblib.c"
+                     "${CMAKE_CURRENT_BINARY_DIR}/mrblib.ctmp"
+    )
+endif()
+
+
+add_library(mrblib_object OBJECT mrblib.c)
+
+# generate final static libmruby archive library
+add_library(libmruby_static STATIC
+  $<TARGET_OBJECTS:mruby_object>
+  $<TARGET_OBJECTS:mrblib_object>
+  )
+set_target_properties(libmruby_static PROPERTIES OUTPUT_NAME mruby)
+
+install(TARGETS libmruby_static
+  LIBRARY DESTINATION lib
+  ARCHIVE DESTINATION lib
+  )
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
new file mode 100644
index 000000000..390129eb9
--- /dev/null
+++ b/src/CMakeLists.txt
@@ -0,0 +1,12 @@
+# build the core mruby C files
+
+find_package(BISON)
+bison_target(mruby parse.y "${CMAKE_CURRENT_BINARY_DIR}/parse.c")
+
+file(GLOB MRUBY_SRC_C "*.c")
+list(APPEND MRUBY_SRC_C "${CMAKE_CURRENT_BINARY_DIR}/parse.c")
+
+add_library(mruby_object OBJECT ${MRUBY_SRC_C} ${BISON_mruby_OUTPUTS})
+add_library(mruby_static STATIC EXCLUDE_FROM_ALL $<TARGET_OBJECTS:mruby_object>)
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/src/regex.h b/src/regex.h
index 4cdad2a33..f3f797b00 100644
--- a/src/regex.h
+++ b/src/regex.h
@@ -15,8 +15,6 @@ extern "C" {
 
 #ifndef ONIG_RUBY_M17N
 
-ONIG_EXTERN OnigEncoding    OnigEncDefaultCharEncoding;
-
 #define mbclen(p,e,enc)  mrb_enc_mbclen((p),(e),(enc))
 
 #endif /* ifndef ONIG_RUBY_M17N */
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
index 000000000..45031fc72
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1,42 @@
+# build standalone mrbtest runner containing all *.rb tests
+
+if(NOT CMAKE_CROSSCOMPILING)
+
+  file(GLOB MRBTEST_SRC_RB "assert.rb" "t/*.rb")
+
+  # generate a single rb file from all existing test *.rb
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.rbtmp"
+    DEPENDS xpcat
+    COMMAND xpcat -o "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.rbtmp" ${MRBTEST_SRC_RB}
+    )
+
+  # mruby compile and generate C byte array representation
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.ctmp"
+    DEPENDS mrbc "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.rbtmp"
+    COMMAND mrbc -Bmrbtest_irep -o"${CMAKE_CURRENT_BINARY_DIR}/mrbtest.ctmp"
+                 "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.rbtmp"
+    )
+
+  # aggregate mruby's *.rb test files as a single C file
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.c"
+    DEPENDS xpcat init_mrbtest.c "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.ctmp"
+    COMMAND xpcat -o "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.c"
+                     "${CMAKE_CURRENT_SOURCE_DIR}/init_mrbtest.c"
+                     "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.ctmp"
+    )
+
+  add_executable(mrbtest
+    EXCLUDE_FROM_ALL
+    "${CMAKE_CURRENT_SOURCE_DIR}/driver.c"
+    "${CMAKE_CURRENT_BINARY_DIR}/mrbtest.c"
+    )
+  target_link_libraries(mrbtest libmruby_static ${MRUBY_LIBS})
+
+  add_custom_target(test
+    DEPENDS mrbtest
+    COMMAND "${CMAKE_CURRENT_BINARY_DIR}/mrbtest"
+    )
+
+endif()
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
new file mode 100644
index 000000000..ce348f3aa
--- /dev/null
+++ b/tools/CMakeLists.txt
@@ -0,0 +1,8 @@
+# specify the internal and external tools to be built
+
+add_subdirectory(xpcat)
+add_subdirectory(mrbc)
+add_subdirectory(mruby)
+add_subdirectory(mirb)
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/tools/mirb/CMakeLists.txt b/tools/mirb/CMakeLists.txt
new file mode 100644
index 000000000..a9f52db1f
--- /dev/null
+++ b/tools/mirb/CMakeLists.txt
@@ -0,0 +1,9 @@
+# build tools/mirb executable
+
+file(GLOB MIRBBIN_SRC_C "*.c")
+add_executable(mirb ${MIRBBIN_SRC_C})
+target_link_libraries(mirb libmruby_static ${MRUBY_LIBS})
+
+install(TARGETS mirb RUNTIME DESTINATION bin)
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/tools/mrbc/CMakeLists.txt b/tools/mrbc/CMakeLists.txt
new file mode 100644
index 000000000..71a3a937d
--- /dev/null
+++ b/tools/mrbc/CMakeLists.txt
@@ -0,0 +1,9 @@
+# build tools/mrbc executable
+
+file(GLOB MRBC_SRC_C "*.c")
+add_executable(mrbc ${MRBC_SRC_C})
+target_link_libraries(mrbc mruby_static ${MRUBY_LIBS})
+
+install(TARGETS mrbc RUNTIME DESTINATION bin)
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/tools/mruby/CMakeLists.txt b/tools/mruby/CMakeLists.txt
new file mode 100644
index 000000000..beff6280d
--- /dev/null
+++ b/tools/mruby/CMakeLists.txt
@@ -0,0 +1,9 @@
+# build tools/mruby executable
+
+file(GLOB MRUBYBIN_SRC_C "*.c")
+add_executable(mruby ${MRUBYBIN_SRC_C})
+target_link_libraries(mruby libmruby_static ${MRUBY_LIBS})
+
+install(TARGETS mruby RUNTIME DESTINATION bin)
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/tools/xpcat/CMakeLists.txt b/tools/xpcat/CMakeLists.txt
new file mode 100644
index 000000000..bb4d326f5
--- /dev/null
+++ b/tools/xpcat/CMakeLists.txt
@@ -0,0 +1,5 @@
+# build tools/xpcat internal executable
+
+add_executable(xpcat xpcat.c)
+
+# vim: ts=2 sts=2 sw=2 et
diff --git a/tools/xpcat/xpcat.c b/tools/xpcat/xpcat.c
new file mode 100644
index 000000000..c9d1abe73
--- /dev/null
+++ b/tools/xpcat/xpcat.c
@@ -0,0 +1,69 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void
+usage(const char *program)
+{
+  printf("Usage: %s -o outputfile FILE...\n", program);
+}
+
+int
+main(int argc, char *argv[])
+{
+  int i, ch;
+  const char *output = NULL;
+  FILE *infile = NULL;
+  FILE *outfile = NULL;
+
+  if (argc < 4) {
+    usage(argv[0]);
+    return EXIT_FAILURE;
+  }
+
+  for (i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "-o") == 0) {
+      i++;
+      if (i < argc)
+        output = argv[i];
+      else
+        return EXIT_FAILURE;
+    }
+  }
+
+  if (output) {
+    outfile = fopen(output, "wb");
+    if (!outfile) {
+      fprintf(stderr, "[ERROR] unable to open output file: %s\n", output);
+      return EXIT_FAILURE;
+    }
+    setbuf(outfile, NULL);
+
+    for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-o") == 0) { i++; continue; }
+
+      infile = fopen(argv[i], "rb");
+      if (!infile) {
+        fprintf(stderr, "[ERROR] unable to open input file: %s\n", argv[i]);
+        return EXIT_FAILURE;
+      }
+      setbuf(infile, NULL);
+
+      while ((ch = getc(infile)) != EOF) {
+        if (putc(ch, outfile) == EOF) {
+          fprintf(stderr, "[ERROR] error writing output file: %s\n", output);
+          return EXIT_FAILURE;
+        }
+      }
+
+      fclose(infile);
+    }
+  }
+
+done:
+  fclose(outfile);
+
+  return EXIT_SUCCESS;
+}
+
+/* vim: set ts=2 sts=2 sw=2 et: */