box.info.build and tarantool_box --version have the same information

doc/user/stored-procedures.xml

@@ -1451,6 +1451,13 @@ localhost> lua box.info.recovery_last_update
 ---
  - 1306964594.980
 ...
+localhost> lua for k, v in pairs(box.info.build) do print(k .. ': ', v) end
+---
+flags:  -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -DCORO_ASM -fno-omit-frame-pointer -fno-stack-protector -fexceptions -funwind-tables -fgnu89-inline -pthread  -Wno-sign-compare -Wno-strict-aliasing -std=gnu99 -Wall -Wextra -Werror
+target: Linux-x86_64-Debug
+compiler: /usr/bin/gcc
+options: cmake . -DCMAKE_INSTALL_PREFIX=/usr/local -DENABLE_STATIC=OFF -DENABLE_GCOV=OFF -DENABLE_TRACE=ON -DENABLE_BACKTRACE=ON -DENABLE_CLIENT=OFF
+...
 localhost>
 </programlisting>
         </listitem>

mod/box/box_lua_info.m

@@ -101,6 +101,32 @@ void lbox_info_init(struct lua_State *L) {
     lua_settable(L, -3);
 
 
+    /* build */
+    lua_pushstring(L, "build");
+    lua_newtable(L);
+
+    /* box.info.build.target */
+    lua_pushstring(L, "target");
+    lua_pushstring(L, BUILD_INFO);
+    lua_settable(L, -3);
+
+    /* box.info.build.options */
+    lua_pushstring(L, "options");
+    lua_pushstring(L, BUILD_OPTIONS);
+    lua_settable(L, -3);
+
+    /* box.info.build.compiler */
+    lua_pushstring(L, "compiler");
+    lua_pushstring(L, COMPILER_INFO);
+    lua_settable(L, -3);
+
+    /* box.info.build.flags */
+    lua_pushstring(L, "flags");
+    lua_pushstring(L, COMPILER_CFLAGS);
+    lua_settable(L, -3);
+
+    lua_settable(L, -3);    /* box.info.build */
+
     lua_settable(L, -3);    /* box.info = created table */
     lua_pop(L, 1);          /* cleanup stack */
 }

test/box/info.result

@@ -46,7 +46,23 @@ lua box.info.status
 ---
  - primary
 ...
-lua box.info.config
+lua string.len(box.info.config) > 0
 ---
- - /home/unera/work/tarantool/test/var/tarantool.cfg
+ - true
+...
+lua string.len(box.info.build.target) > 0
+---
+ - true
+...
+lua string.len(box.info.build.compiler) > 0
+---
+ - true
+...
+lua string.len(box.info.build.flags) > 0
+---
+ - true
+...
+lua string.len(box.info.build.options) > 0
+---
+ - true
 ...

test/box/info.test

@@ -15,4 +15,8 @@ exec admin "lua box.info.lsn > 0"
 exec admin "lua box.info.recovery_lag"
 exec admin "lua box.info.recovery_last_update"
 exec admin "lua box.info.status"
-exec admin "lua box.info.config"
+exec admin "lua string.len(box.info.config) > 0"
+exec admin "lua string.len(box.info.build.target) > 0"
+exec admin "lua string.len(box.info.build.compiler) > 0"
+exec admin "lua string.len(box.info.build.flags) > 0"
+exec admin "lua string.len(box.info.build.options) > 0"