Fresh install on OS X 10.9 fails, can't find libsundown.so

[alexbw]

Fails for Lua 5.2, 5.1 and LuaJIT 2.1
Ran the dependency install beforehand, which succeeded just fine.

$ ./install.sh
Prefix set to /Users/Alex/torch/install
Installing Lua version: LUAJIT21
CMake Warning (dev):
  Policy CMP0042 is not set: MACOSX_RPATH is enabled by default.  Run "cmake
  --help-policy CMP0042" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  MACOSX_RPATH is not specified for the following targets:

   liblua

This warning is for project developers.  Use -Wno-dev to suppress it.

error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install_name_tool: can't open file: /Users/Alex/torch/install/lib/libluajit.dylib (No such file or directory)
Installing common Lua packages
In file included from src/lfs.c:63:
/Users/Alex/torch/install/include/lua.h:110:9: error: unknown type name 'LUA_UNSIGNED'
typedef LUA_UNSIGNED lua_Unsigned;
        ^
In file included from src/lfs.c:65:
/Users/Alex/torch/install/include/lualib.h:15:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_base) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:15:12: error: expected identifier or '('
LUAMOD_API int (luaopen_base) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:18:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_coroutine) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:18:12: error: expected identifier or '('
LUAMOD_API int (luaopen_coroutine) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:21:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_table) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:21:12: error: expected identifier or '('
LUAMOD_API int (luaopen_table) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:24:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_io) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:24:12: error: expected identifier or '('
LUAMOD_API int (luaopen_io) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:27:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_os) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:27:12: error: expected identifier or '('
LUAMOD_API int (luaopen_os) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:30:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_string) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:30:12: error: expected identifier or '('
LUAMOD_API int (luaopen_string) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:33:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_bit32) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:33:12: error: expected identifier or '('
LUAMOD_API int (luaopen_bit32) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:36:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_math) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:36:12: error: expected identifier or '('
LUAMOD_API int (luaopen_math) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:39:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_debug) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:39:12: error: expected identifier or '('
LUAMOD_API int (luaopen_debug) (lua_State *L);
           ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.

Error: Build error: Failed compiling object src/lfs.o

Missing dependencies for penlight:
luafilesystem

In file included from src/lfs.c:63:
/Users/Alex/torch/install/include/lua.h:110:9: error: unknown type name 'LUA_UNSIGNED'
typedef LUA_UNSIGNED lua_Unsigned;
        ^
In file included from src/lfs.c:65:
/Users/Alex/torch/install/include/lualib.h:15:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_base) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:15:12: error: expected identifier or '('
LUAMOD_API int (luaopen_base) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:18:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_coroutine) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:18:12: error: expected identifier or '('
LUAMOD_API int (luaopen_coroutine) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:21:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_table) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:21:12: error: expected identifier or '('
LUAMOD_API int (luaopen_table) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:24:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_io) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:24:12: error: expected identifier or '('
LUAMOD_API int (luaopen_io) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:27:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_os) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:27:12: error: expected identifier or '('
LUAMOD_API int (luaopen_os) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:30:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_string) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:30:12: error: expected identifier or '('
LUAMOD_API int (luaopen_string) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:33:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_bit32) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:33:12: error: expected identifier or '('
LUAMOD_API int (luaopen_bit32) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:36:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_math) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:36:12: error: expected identifier or '('
LUAMOD_API int (luaopen_math) (lua_State *L);
           ^
/Users/Alex/torch/install/include/lualib.h:39:1: error: unknown type name 'LUAMOD_API'
LUAMOD_API int (luaopen_debug) (lua_State *L);
^
/Users/Alex/torch/install/include/lualib.h:39:12: error: expected identifier or '('
LUAMOD_API int (luaopen_debug) (lua_State *L);
           ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.

Error: Failed installing dependency: https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/luafilesystem-1.6.3-1.src.rock - Build error: Failed compiling object src/lfs.o
In file included from lua_cjson.c:43:
/Users/Alex/torch/install/include/lua.h:110:9: error: unknown type name 'LUA_UNSIGNED'
typedef LUA_UNSIGNED lua_Unsigned;
        ^
lua_cjson.c:196:29: error: use of undeclared identifier 'LUAI_FIRSTPSEUDOIDX'
    cfg = lua_touserdata(l, lua_upvalueindex(1));
                            ^
/Users/Alex/torch/install/include/lua.h:41:30: note: expanded from macro 'lua_upvalueindex'
#define lua_upvalueindex(i)     (LUA_REGISTRYINDEX - (i))
                                 ^
/Users/Alex/torch/install/include/lua.h:40:27: note: expanded from macro 'LUA_REGISTRYINDEX'
#define LUA_REGISTRYINDEX       LUAI_FIRSTPSEUDOIDX
                                ^
lua_cjson.c:1324:22: error: use of undeclared identifier 'LUAI_FIRSTPSEUDOIDX'
    lua_pushvalue(l, lua_upvalueindex(1));
                     ^
/Users/Alex/torch/install/include/lua.h:41:30: note: expanded from macro 'lua_upvalueindex'
#define lua_upvalueindex(i)     (LUA_REGISTRYINDEX - (i))
                                 ^
/Users/Alex/torch/install/include/lua.h:40:27: note: expanded from macro 'LUA_REGISTRYINDEX'
#define LUA_REGISTRYINDEX       LUAI_FIRSTPSEUDOIDX
                                ^
3 errors generated.

Error: Build error: Failed compiling object lua_cjson.o
Installing core Torch packages
export MACOSX_DEPLOYMENT_TARGET=10.5; gcc -O2 -fPIC -I/Users/Alex/torch/install/include -c src/autolink.c -o src/autolink.o -Isrc/ -Ihtml/
export MACOSX_DEPLOYMENT_TARGET=10.5; gcc -O2 -fPIC -I/Users/Alex/torch/install/include -c src/buffer.c -o src/buffer.o -Isrc/ -Ihtml/
export MACOSX_DEPLOYMENT_TARGET=10.5; gcc -O2 -fPIC -I/Users/Alex/torch/install/include -c src/markdown.c -o src/markdown.o -Isrc/ -Ihtml/
export MACOSX_DEPLOYMENT_TARGET=10.5; gcc -O2 -fPIC -I/Users/Alex/torch/install/include -c src/stack.c -o src/stack.o -Isrc/ -Ihtml/
export MACOSX_DEPLOYMENT_TARGET=10.5; gcc -O2 -fPIC -I/Users/Alex/torch/install/include -c html/houdini_href_e.c -o html/houdini_href_e.o -Isrc/ -Ihtml/
export MACOSX_DEPLOYMENT_TARGET=10.5; gcc -O2 -fPIC -I/Users/Alex/torch/install/include -c html/houdini_html_e.c -o html/houdini_html_e.o -Isrc/ -Ihtml/
export MACOSX_DEPLOYMENT_TARGET=10.5; gcc -O2 -fPIC -I/Users/Alex/torch/install/include -c html/html.c -o html/html.o -Isrc/ -Ihtml/
export MACOSX_DEPLOYMENT_TARGET=10.5; gcc -O2 -fPIC -I/Users/Alex/torch/install/include -c html/html_smartypants.c -o html/html_smartypants.o -Isrc/ -Ihtml/
export MACOSX_DEPLOYMENT_TARGET=10.5; gcc -bundle -undefined dynamic_lookup -all_load -o libsundown.so -L/Users/Alex/torch/install/lib src/autolink.o src/buffer.o src/markdown.o src/stack.o html/houdini_href_e.o html/houdini_html_e.o html/html.o html/html_smartypants.o
ld: library not found for -lgcc_s.10.5
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Error: Build error: Failed compiling module libsundown.so

[soumith]

it really points to old artifacts. Do you have other global lua installs or old global torch installs?

can you run https://github.com/torch/ezinstall/raw/master/clean-old.sh before trying again?