pkgs/by-name/gn/gnulib/gnulib-longdouble-redirect.patch

   1
   2 Below is the subset of gnulib commit
   3 776af40e09b476a41073131a90022572f448c189 which deals with long double
   4 redirects.  The rest of that commit has been removed.
   5
   6 diff --git a/lib/cdefs.h b/lib/cdefs.h
   7 index fd72b7b..4383e70 100644
   8 --- a/lib/cdefs.h
   9 +++ b/lib/cdefs.h
  10 @@ -483,7 +493,37 @@
  11  # include <bits/long-double.h>
  12  #endif
  13
  14 -#if defined __LONG_DOUBLE_MATH_OPTIONAL && defined __NO_LONG_DOUBLE_MATH
  15 +#if __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
  16 +# ifdef __REDIRECT
  17 +
  18 +/* Alias name defined automatically.  */
  19 +#  define __LDBL_REDIR(name, proto) ... unused__ldbl_redir
  20 +#  define __LDBL_REDIR_DECL(name) \
  21 +  extern __typeof (name) name __asm (__ASMNAME ("__" #name "ieee128"));
  22 +
  23 +/* Alias name defined automatically, with leading underscores.  */
  24 +#  define __LDBL_REDIR2_DECL(name) \
  25 +  extern __typeof (__##name) __##name \
  26 +    __asm (__ASMNAME ("__" #name "ieee128"));
  27 +
  28 +/* Alias name defined manually.  */
  29 +#  define __LDBL_REDIR1(name, proto, alias) ... unused__ldbl_redir1
  30 +#  define __LDBL_REDIR1_DECL(name, alias) \
  31 +  extern __typeof (name) name __asm (__ASMNAME (#alias));
  32 +
  33 +#  define __LDBL_REDIR1_NTH(name, proto, alias) \
  34 +  __REDIRECT_NTH (name, proto, alias)
  35 +#  define __REDIRECT_NTH_LDBL(name, proto, alias) \
  36 +  __LDBL_REDIR1_NTH (name, proto, __##alias##ieee128)
  37 +
  38 +/* Unused.  */
  39 +#  define __REDIRECT_LDBL(name, proto, alias) ... unused__redirect_ldbl
  40 +#  define __LDBL_REDIR_NTH(name, proto) ... unused__ldbl_redir_nth
  41 +
  42 +# else
  43 +_Static_assert (0, "IEEE 128-bits long double requires redirection on this platform");
  44 +# endif
  45 +#elif defined __LONG_DOUBLE_MATH_OPTIONAL && defined __NO_LONG_DOUBLE_MATH
  46  # define __LDBL_COMPAT 1
  47  # ifdef __REDIRECT
  48  #  define __LDBL_REDIR1(name, proto, alias) __REDIRECT (name, proto, alias)
  49 @@ -492,6 +532,8 @@
  50  #  define __LDBL_REDIR1_NTH(name, proto, alias) __REDIRECT_NTH (name, proto, alias)
  51  #  define __LDBL_REDIR_NTH(name, proto) \
  52    __LDBL_REDIR1_NTH (name, proto, __nldbl_##name)
  53 +#  define __LDBL_REDIR2_DECL(name) \
  54 +  extern __typeof (__##name) __##name __asm (__ASMNAME ("__nldbl___" #name));
  55  #  define __LDBL_REDIR1_DECL(name, alias) \
  56    extern __typeof (name) name __asm (__ASMNAME (#alias));
  57  #  define __LDBL_REDIR_DECL(name) \
  58 @@ -502,11 +544,13 @@
  59    __LDBL_REDIR1_NTH (name, proto, __nldbl_##alias)
  60  # endif
  61  #endif
  62 -#if !defined __LDBL_COMPAT || !defined __REDIRECT
  63 +#if (!defined __LDBL_COMPAT && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0) \
  64 +    || !defined __REDIRECT
  65  # define __LDBL_REDIR1(name, proto, alias) name proto
  66  # define __LDBL_REDIR(name, proto) name proto
  67  # define __LDBL_REDIR1_NTH(name, proto, alias) name proto __THROW
  68  # define __LDBL_REDIR_NTH(name, proto) name proto __THROW
  69 +# define __LDBL_REDIR2_DECL(name)
  70  # define __LDBL_REDIR_DECL(name)
  71  # ifdef __REDIRECT
  72  #  define __REDIRECT_LDBL(name, proto, alias) __REDIRECT (name, proto, alias)