[Tarantool-patches] [PATCH curl v1] Make curl symbols global

["Alexander V. Tikhonov" <avtikhon@tarantool.org>]

Building using cmake got issue in testing:

  [043] box-tap/gh-5223-curl-exports.test.lua                           [ fail ]
  [043] Test failed! Output from reject file box-tap/gh-5223-curl-exports.reject:
  [043]
  [043] Last 15 lines of Tarantool Log file [Instance "app_server"][/build/usr/src/debug/tarantool-2.6.0.54/test/var/043_box-tap/gh-5223-curl-exports.test.lua.tarantool.log]:
  [043] LuajitError: ...tool-2.6.0.54/test/box-tap/gh-5223-curl-exports.test.lua:57: tarantool: undefined symbol: curl_version_info

It happened because curl used visibility hiding mode for its symbols
and the test could not use it. To fix it symbols hiding disabled for
gcc and clang.

Closes tarantool/tarantool#5268
---

Github: https://github.com/tarantool/tarantool/tree/avtikhon/curl-7_71_1
Issue: https://github.com/tarantool/tarantool/issues/5268

 CMake/CurlSymbolHiding.cmake | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/CMake/CurlSymbolHiding.cmake b/CMake/CurlSymbolHiding.cmake
index aaac9fead..fb77eed69 100644
--- a/CMake/CurlSymbolHiding.cmake
+++ b/CMake/CurlSymbolHiding.cmake
@@ -28,15 +28,15 @@ if(CURL_HIDDEN_SYMBOLS)
   set(SUPPORTS_SYMBOL_HIDING FALSE)
 
   if(CMAKE_C_COMPILER_ID MATCHES "Clang")
-    set(SUPPORTS_SYMBOL_HIDING TRUE)
-    set(_SYMBOL_EXTERN "__attribute__ ((__visibility__ (\"default\")))")
-    set(_CFLAG_SYMBOLS_HIDE "-fvisibility=hidden")
+	  set(SUPPORTS_SYMBOL_HIDING FALSE)
+    set(_SYMBOL_EXTERN "")
+    set(_CFLAG_SYMBOLS_HIDE "")
   elseif(CMAKE_COMPILER_IS_GNUCC)
     if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 3.4)
       # note: this is considered buggy prior to 4.0 but the autotools don't care, so let's ignore that fact
-      set(SUPPORTS_SYMBOL_HIDING TRUE)
-      set(_SYMBOL_EXTERN "__attribute__ ((__visibility__ (\"default\")))")
-      set(_CFLAG_SYMBOLS_HIDE "-fvisibility=hidden")
+      set(SUPPORTS_SYMBOL_HIDING FALSE)
+      set(_SYMBOL_EXTERN "")
+      set(_CFLAG_SYMBOLS_HIDE "")
     endif()
   elseif(CMAKE_C_COMPILER_ID MATCHES "SunPro" AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 8.0)
     set(SUPPORTS_SYMBOL_HIDING TRUE)
-- 
2.25.1