Compiling It Successfully on Newer Distributions / g++ Versions

[ossie-git]

Compiling lua-requests on any modern distribution will fail with the following error on any modern Linux distribution:

$ luarocks install lua-requests
...
gcc -O2 -fPIC -I/usr/include/lua5.3 -c src/Parser.cpp -o src/Parser.o -Iinclude -Isrc/bind -Isrc/vendor
In file included from include/xml/Parser.h:33,
                 from src/Parser.cpp:1:
src/bind/dub/dub.h:298:48: error: ISO C++17 does not allow dynamic exception specifications
  298 | lua_Number checknumber(lua_State *L, int narg) throw(dub::TypeException);
      |                                                ^~~~~
src/bind/dub/dub.h:299:50: error: ISO C++17 does not allow dynamic exception specifications
  299 | lua_Integer checkinteger(lua_State *L, int narg) throw(dub::TypeException);
      |                                                  ^~~~~
src/bind/dub/dub.h:300:63: error: ISO C++17 does not allow dynamic exception specifications
  300 | const char *checklstring(lua_State *L, int narg, size_t *len) throw(dub::TypeException);
      |                                                               ^~~~~
src/bind/dub/dub.h:301:82: error: ISO C++17 does not allow dynamic exception specifications
  301 | void **checkudata(lua_State *L, int ud, const char *tname, bool keep_mt = false) throw(dub::Exception);
      |                                                                                  ^~~~~
src/bind/dub/dub.h:304:82: error: ISO C++17 does not allow dynamic exception specifications
  304 | void **checksdata(lua_State *L, int ud, const char *tname, bool keep_mt = false) throw(dub::Exception);
      |                                                                                  ^~~~~
src/bind/dub/dub.h:307:62: error: ISO C++17 does not allow dynamic exception specifications
  307 | void **checksdata_d(lua_State *L, int ud, const char *tname) throw(dub::Exception);
      |                                                              ^~~~~
src/bind/dub/dub.h:317:56: error: ISO C++17 does not allow dynamic exception specifications
  317 | inline const char *checkstring(lua_State *L, int narg) throw(dub::TypeException) {
      |                                                        ^~~~~

Error: Failed installing dependency: https://luarocks.org/xml-1.1.3-1.src.rock - Build error: Failed compiling object src/Parser.o

The problem is due to a C++ feature that was removed in C++17, which is used by newer versions of gcc. To get around this, you can either:

• install and use an older version of g++
• pass in flags to tell it to compile using C++14 mode instead

For more on the second option and how to update your .rockspec to do so, refer to this.

[ElGrats]

Using solution via .rockspec for lua xml to install lua-requests (Debian 12, lua 5.3)
I tried this way:

apt-get install libssl-dev
luarocks install luasec
cd /usr/src
git clone https://github.com/lubyk/xml xml_lua
git clone https://gist.github.com/ossie-git/ffddb4fd619c93db6baa45b62a65b89b rockspec
cp /usr/src/rockspec/xml-1.1.3-1.rockspec /usr/src/xml_lua/xml-1.1.3-1.rockspec
cd /usr/src/xml_lua
luarocks install xml-1.1.3-1.rockspec
luarocks install lua-requests

i'v got the next:

[ERR] mod_lua.cpp:202 /usr/local/share/lua/5.3/requests.lua:8: module 'xml' not found:
        no field package.preload['xml']
        no file '/usr/local/share/lua/5.3/xml.lua'
        no file '/usr/local/lib/lua/5.3/xml.so'
stack traceback:
        [C]: in function 'require'
        /usr/local/share/lua/5.3/requests.lua:8: in main chunk
        [C]: in function 'require'
        [string "line"]:1: in main chunk

Where is my mistake?

[Freed-Wu]

you can use a fork of xml by this rockspec: lubyk/xml#20 (comment)

This is upstream's bug. please close it.