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Merge pull request #2667 from ulion/fix_unreference_gcc_builtin_atomi…

…c_func

Fix undefined reference caused by wrong detection of gcc builtin atomic functions.
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commit f13ff297a6e4673cd7e2fa2a695d6aa046486eb6 2 parents 104515a + 07c1ed5
ulion ulion authored
Showing with 3 additions and 3 deletions.
  1. +3 −3 configure.in
6 configure.in
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@@ -850,7 +850,7 @@ AC_CHECK_SIZEOF([size_t])
# Check for intrinsics
AC_MSG_CHECKING([for __sync_add_and_fetch(temp, 1)])
-AC_TRY_COMPILE([],[long* temp=0; __sync_add_and_fetch(temp, 1);],
+AC_TRY_LINK([],[long* temp=0; long ret=__sync_add_and_fetch(temp, 1);],
[have_builtin_sync_add_and_fetch=yes],
[have_builtin_sync_add_and_fetch=no])
AC_MSG_RESULT($have_builtin_sync_add_and_fetch)
@@ -860,7 +860,7 @@ if test "x$have_builtin_sync_add_and_fetch" = "xyes"; then
fi
AC_MSG_CHECKING([for __sync_sub_and_fetch(temp, 1)])
-AC_TRY_COMPILE([],[long* temp=0; __sync_sub_and_fetch(temp, 1);],
+AC_TRY_LINK([],[long* temp=0; long ret=__sync_sub_and_fetch(temp, 1);],
[have_builtin_sync_sub_and_fetch=yes],
[have_builtin_sync_sub_and_fetch=no])
AC_MSG_RESULT($have_builtin_sync_sub_and_fetch)
@@ -870,7 +870,7 @@ if test "x$have_builtin_sync_sub_and_fetch" = "xyes"; then
fi
AC_MSG_CHECKING([for __sync_val_compare_and_swap(temp, 1, 1)])
-AC_TRY_COMPILE([],[long *temp = 0; __sync_val_compare_and_swap(temp, 1, 1);],
+AC_TRY_LINK([],[long *temp = 0; long ret=__sync_val_compare_and_swap(temp, 1, 1);],
[have_builtin_sync_val_compare_and_swap=yes],
[have_builtin_sync_val_compare_and_swap=no])
AC_MSG_RESULT($have_builtin_sync_val_compare_and_swap)
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