|
@ -0,0 +1,34 @@ |
|
|
|
|
|
--- a/m4/pdns_check_os.m4
|
|
|
|
|
|
+++ b/m4/pdns_check_os.m4
|
|
|
|
|
|
@@ -35,16 +35,21 @@
|
|
|
|
|
|
AM_CONDITIONAL([HAVE_LINUX], [test "x$have_linux" = "xyes"]) |
|
|
|
|
|
AM_CONDITIONAL([HAVE_SOLARIS], [test "x$have_solaris" = "xyes"]) |
|
|
|
|
|
|
|
|
|
|
|
- case "$host" in
|
|
|
|
|
|
- mips* | powerpc-* )
|
|
|
|
|
|
- AC_MSG_CHECKING([whether the linker accepts -latomic])
|
|
|
|
|
|
- LDFLAGS="-latomic $LDFLAGS"
|
|
|
|
|
|
- AC_LINK_IFELSE([m4_default([],[AC_LANG_PROGRAM()])],
|
|
|
|
|
|
- [AC_MSG_RESULT([yes])],
|
|
|
|
|
|
- [AC_MSG_ERROR([Unable to link against libatomic, cannot continue])]
|
|
|
|
|
|
- )
|
|
|
|
|
|
- ;;
|
|
|
|
|
|
- esac
|
|
|
|
|
|
+ AC_MSG_CHECKING([whether -latomic is needed for __atomic builtins])
|
|
|
|
|
|
+ AC_LINK_IFELSE(
|
|
|
|
|
|
+ [AC_LANG_PROGRAM([[#include <stdint.h>]],
|
|
|
|
|
|
+ [[uint64_t val = 0; __atomic_add_fetch(&val, 1, __ATOMIC_RELAXED);]]
|
|
|
|
|
|
+ )],
|
|
|
|
|
|
+ [AC_MSG_RESULT([no])],
|
|
|
|
|
|
+ [LIBS="$LIBS -latomic"
|
|
|
|
|
|
+ AC_LINK_IFELSE(
|
|
|
|
|
|
+ [AC_LANG_PROGRAM([[#include <stdint.h>]],
|
|
|
|
|
|
+ [[uint64_t val = 0; __atomic_add_fetch(&val, 1, __ATOMIC_RELAXED);]]
|
|
|
|
|
|
+ )],
|
|
|
|
|
|
+ [AC_MSG_RESULT([yes])],
|
|
|
|
|
|
+ [AC_MSG_FAILURE([libatomic needed, but linking with -latomic failed, cannot continue])]
|
|
|
|
|
|
+ )]
|
|
|
|
|
|
+ )
|
|
|
|
|
|
|
|
|
|
|
|
AC_SUBST(THREADFLAGS) |
|
|
|
|
|
AC_SUBST([DYNLINKFLAGS], [-export-dynamic]) |