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lang/lua54/files/extra-patch-libedit-dl
- This file was added.
| --- src/lua.c.orig 2018-03-16 14:23:08 UTC | |||||
| +++ src/lua.c | |||||
| @@ -379,7 +379,54 @@ static int handle_luainit (lua_State *L) | |||||
| */ | |||||
| #if !defined(lua_readline) /* { */ | |||||
| -#if defined(LUA_USE_READLINE) /* { */ | |||||
| +#if defined(LUA_USE_READLINE_DL)/* { */ | |||||
| + | |||||
| +#include <dlfcn.h> | |||||
| + | |||||
| +#ifndef LUA_READLINE_LIBPATH | |||||
| +#define LUA_READLINE_LIBPATH "/usr/local/lib/libedit.so" | |||||
| +#endif | |||||
| + | |||||
| +typedef char *readline_functype(const char *); | |||||
| +typedef int add_history_functype(const char *); | |||||
| + | |||||
| +static readline_functype *lua_readline_p = NULL; | |||||
| +static add_history_functype *lua_saveline_p = NULL; | |||||
| + | |||||
| +static void lua_initreadline(lua_State *L) | |||||
| +{ | |||||
| + void *editlib = NULL; | |||||
| + union dl_func_hack { | |||||
| + void *ptr; | |||||
| + readline_functype *rlfunc; | |||||
| + add_history_functype *ahfunc; | |||||
| + char **rlnamevar; | |||||
| + int *icompvar; | |||||
| + } u; | |||||
| + (void) L; | |||||
| + if ((editlib = dlopen(LUA_READLINE_LIBPATH, RTLD_LAZY | RTLD_LOCAL))) { | |||||
| + u.ptr = dlsym(editlib, "readline"); | |||||
| + lua_readline_p = u.rlfunc; | |||||
| + u.ptr = dlsym(editlib, "add_history"); | |||||
| + lua_saveline_p = u.ahfunc; | |||||
| + if ((u.ptr = dlsym(editlib, "rl_readline_name"))) | |||||
| + *u.rlnamevar = "lua"; | |||||
| + if ((u.ptr = dlsym(editlib, "rl_inhibit_completion"))) | |||||
| + *u.icompvar = 1; | |||||
| + } | |||||
| +} | |||||
| + | |||||
| +#define lua_readline(L,b,p) \ | |||||
| + ((void)L, \ | |||||
| + (lua_readline_p) \ | |||||
| + ? (((b)=lua_readline_p(p)) != NULL) \ | |||||
| + : (fputs(p, stdout), fflush(stdout), fgets(b, LUA_MAXINPUT, stdin) != NULL)) | |||||
| +#define lua_saveline(L,line) \ | |||||
| + do { (void)L; if (lua_saveline_p) lua_saveline_p(line); } while(0) | |||||
| +#define lua_freeline(L,b) \ | |||||
| + do { (void)L; if (lua_readline_p) free(b); } while(0) | |||||
| + | |||||
| +#elif defined(LUA_USE_READLINE) /* { */ | |||||
| #include <readline/readline.h> | |||||
| #include <readline/history.h> | |||||