Commit 265ed24a authored by Yang Tse's avatar Yang Tse
Browse files

External API function linkage decoration adjustment

parent 57eeee2e

ares/m4/cares-compilers.m4

+5 −7
Original line number Diff line number Diff line
@@ -16,7 +16,7 @@ 
#***************************************************************************



# File version for 'aclocal' use. Keep it a single number.

# serial 59

# serial 60





dnl CARES_CHECK_COMPILER
@@ -1252,8 +1252,8 @@ AC_DEFUN([CARES_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE], [ 
dnl CARES_CHECK_COMPILER_HIDDEN_SYMBOLS

dnl -------------------------------------------------

dnl Verify if compiler supports hiding library internal symbols, setting

dnl shell variable hidden_symbols_supported value as appropriate, as well

dnl as variable hidden_symbols_CFLAGS when supported.

dnl shell variable hidden_symbols_supported value as appropriate, as well as

dnl variables hidden_symbols_CFLAGS and hidden_symbols_extern when supported.



AC_DEFUN([CARES_CHECK_COMPILER_HIDDEN_SYMBOLS], [

  AC_REQUIRE([CARES_CHECK_COMPILER])dnl
@@ -1261,6 +1261,7 @@ AC_DEFUN([CARES_CHECK_COMPILER_HIDDEN_SYMBOLS], [ 
  AC_MSG_CHECKING([if compiler supports hiding library internal symbols])

  hidden_symbols_supported="no"

  hidden_symbols_CFLAGS=""

  hidden_symbols_extern=""

  tmp_CFLAGS=""

  tmp_extern=""

  case "$compiler_id" in
@@ -1332,11 +1333,8 @@ AC_DEFUN([CARES_CHECK_COMPILER_HIDDEN_SYMBOLS], [ 
  fi

  if test "$hidden_symbols_supported" = "yes"; then

    AC_MSG_RESULT([yes])

    AC_DEFINE_UNQUOTED(CARES_HIDDEN_SYMBOLS, 1,

      [Define to 1 to enable hiding of library internal symbols.])

    AC_DEFINE_UNQUOTED(CARES_EXTERN_SYMBOL, $tmp_extern,

      [Definition to make a library symbol externally visible.])

    hidden_symbols_CFLAGS="$tmp_CFLAGS"

    hidden_symbols_extern="$tmp_extern"

  else

    AC_MSG_RESULT([no])

  fi

ares/m4/cares-confopts.m4

+7 −2
Original line number Diff line number Diff line
@@ -16,7 +16,7 @@ 
#***************************************************************************



# File version for 'aclocal' use. Keep it a single number.

# serial 6

# serial 7





dnl CARES_CHECK_OPTION_CURLDEBUG
@@ -303,10 +303,15 @@ dnl been done to prevent interferences on other tests. 


AC_DEFUN([CARES_CONFIGURE_HIDDEN_SYMBOLS], [

  AC_MSG_CHECKING([whether to actually hide library internal symbols])

  if test "$want_hidden_symbols" = "yes" &&

  if test x"$ac_cv_native_windows" != "xyes" &&

    test "$want_hidden_symbols" = "yes" &&

    test "$hidden_symbols_supported" = "yes"; then

    tmp_save_CFLAGS="$CFLAGS"

    CFLAGS="$tmp_save_CFLAGS $hidden_symbols_CFLAGS"

    AC_DEFINE_UNQUOTED(CARES_HIDDEN_SYMBOLS, 1,

      [Define to 1 to enable hiding of library internal symbols.])

    AC_DEFINE_UNQUOTED(CARES_EXTERN_SYMBOL, $hidden_symbols_extern,

      [Definition to make a library symbol externally visible.])

    AC_MSG_RESULT([yes])

  else

    AC_MSG_RESULT([no])