fix PR89864

[thirdparty/gcc.git] / fixincludes / inclhack.def

diff --git a/fixincludes/inclhack.def b/fixincludes/inclhack.def
index 8fd9f7ef295e2bb5f0c5872b529fc813ea8bee9f..d8ce89ac8c4475fdfc2bfd855e182d3cbabe51a1 100644 (file)
--- a/fixincludes/inclhack.def
+++ b/fixincludes/inclhack.def
@@ -1622,6 +1622,25 @@ fix = {
                "#define UINTMAX_C(v) (v ## ULL)";
 };
 
+/*  The SDK included with XCode 10.2 has the file <sys/ucred.h> that uses the
+    C11 _Atomic keyword (exposing it to C++ code).  The work-around here follows
+    the header in declaring the entity volatile when _Atomic is not available.
+*/
+fix = {
+    hackname  = darwin_ucred__Atomic;
+    mach      = "*-*-darwin*";
+    files     = sys/ucred.h;
+    select    = "_Atomic";
+    c_fix     = wrap;
+    c_fix_arg = "#if (__STDC_VERSION__ < 201112L) || defined(__cplusplus)\n"
+               "# define _Atomic volatile\n"
+               "#endif\n";
+    c_fix_arg = "#if (__STDC_VERSION__ < 201112L) || defined(__cplusplus)\n"
+               "# undef _Atomic\n"
+               "#endif\n";
+    test_text = "_Atomic";
+};
+
 /*
  *  Fix <c_asm.h> on Digital UNIX V4.0:
  *  It contains a prototype for a DEC C internal asm() function,