As described in
<https://sourceware.org/ml/libc-alpha/2016-10/msg00047.html>, there is
an include ordering issue with the integer width macros in glibc's
<limits.h>, where definitions conditional on LONG_MAX do not work as
intended because when the headers are installed, this part of glibc's
<limits.h> is processed before the part of GCC's <limits.h> that will
define LONG_MAX. This patch changes the definitions just to use
__WORDSIZE for the expansion of LONG_WIDTH and ULONG_WIDTH rather than
making those definitions conditional on LONG_MAX.
Tested for x86_64 and x86.
* include/limits.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (LONG_WIDTH):
Define to __WORDSIZE, not conditional on [LONG_MAX ==
0x7fffffffL].
[__GLIBC_USE (IEC_60559_BFP_EXT)] (ULONG_WIDTH): Likewise.
+2016-10-04 Joseph Myers <joseph@codesourcery.com>
+
+ * include/limits.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (LONG_WIDTH):
+ Define to __WORDSIZE, not conditional on [LONG_MAX ==
+ 0x7fffffffL].
+ [__GLIBC_USE (IEC_60559_BFP_EXT)] (ULONG_WIDTH): Likewise.
+
2016-10-04 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
* sysdeps/powerpc/sys/platform/ppc.h (__ppc_get_timebase): Replace
# ifndef UINT_WIDTH
# define UINT_WIDTH 32
# endif
-# if LONG_MAX == 0x7fffffffL
-# ifndef LONG_WIDTH
-# define LONG_WIDTH 32
-# endif
-# ifndef ULONG_WIDTH
-# define ULONG_WIDTH 32
-# endif
-# else
-# ifndef LONG_WIDTH
-# define LONG_WIDTH 64
-# endif
-# ifndef ULONG_WIDTH
-# define ULONG_WIDTH 64
-# endif
+# ifndef LONG_WIDTH
+# define LONG_WIDTH __WORDSIZE
+# endif
+# ifndef ULONG_WIDTH
+# define ULONG_WIDTH __WORDSIZE
# endif
# ifndef LLONG_WIDTH
# define LLONG_WIDTH 64