Hello scifi,
> I'd like to see how close we can get to having full 32- & 64-bit
> universal binaries
That's currently something that does not work, because autoconf tests
can yield different results in the 32-bit and in the 64-bit case - and
some actually do, see below.
> (0) I'm building coreutils-7.0 and other GNU projects seemingly
> just fine (regular 'make'), after I learned that we had to pass
> '--disable-dependency-tracking' to configure when building
> so-called 'fat' binaries.
Interesting... We document in INSTALL how to create fat binaries:
On MacOS X 10.5 and later systems, you can create libraries and
executables that work on multiple system types--known as "fat" or
"universal" binaries--by specifying multiple '-arch' options to the
compiler but only a single '-arch' option to the preprocessor. Like
this:
./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
CPP="gcc -E" CXXCPP="g++ -E"
I didn't see problems with dependency tracking when using this recipe.
It uses depmode=gcc, and this works fine.
> (1) Regular 'make' finishes okay, then I'll do 'make check'.
> The first real problem I had here was linking
> coreutils-7.0/gnulib-tests/test-getdate failed because the
> makefiles did not include the libiconv libs determined by
> configure -- missing symbol '_libintl_gettext'.
You mean libintl, not libiconv? This was fixed in gnulib on 2008-10-08.
> (2) The next problem I had with coreutils-7.0 'make check', and
> I'm _still_ stuck here:
> The compiler bombs when it gets to building
> coreutils-7.0/gnulib-tests/test-stdint:
> […]
> llvm-gcc-4.2 -std=gnu99 -I. -I../lib -I. -I. -I.. -I./.. -I../lib
> -I./../lib -I/usr/local/include -Os -mtune=core2 -march=core2
> -force_cpusubtype_ALL -arch i386 -arch x86_64 -c test-stdint.c
> test-stdint.c:263: error: negative width in bit-field
> ‘verify_error_if_negative_size__’
> test-stdint.c:264: error: negative width in bit-field
> ‘verify_error_if_negative_size__’
> test-stdint.c:263: error: negative width in bit-field
> ‘verify_error_if_negative_size__’
> test-stdint.c:264: error: negative width in bit-field
> ‘verify_error_if_negative_size__’
> […]
>
> The doubled-up error lines are because the module is
> automatically being compiled twice: once for each -arch.
Now this is a symptom of an autoconf test that produced no result that would
be good for both 32-bit and 64-bit builds. Here's the complete list, that I
got by running
./configure CC="gcc -arch i386" CPP="gcc -E"
and
./configure CC="gcc -arch x86_64" CPP="gcc -E"
and comparing the results.
Bruno
> The gnulib git snapshot is suffering other problems trying to
> analyze these two problems. For ex. after using ./gnulib-tool to
> create a tempdir and pull getdate with tests into it, the
> configure & make steps left @LIBINTL@ empty
... which means that on your system, libintl was either not needed or
not available. If in doubt, you can always consult config.log.
> Could we get all the projects at the alpha FTP site that use
> gnulib to be refreshed please so they'll get caught-up to the
> fixes?
The fixes that you want are not yet done.
Bruno
Differences between build32 and build64 on MacOS X:
--- build32/config.h 2008-11-18 10:48:48.000000000 +0100
+++ build64/config.h 2008-11-18 10:53:09.000000000 +0100
@@ -5,13 +5,13 @@
#define AC_APPLE_UNIVERSAL_BUILD 1
/* Define to the number of bits in type 'ptrdiff_t'. */
-#define BITSIZEOF_PTRDIFF_T 32
+#define BITSIZEOF_PTRDIFF_T 64
/* Define to the number of bits in type 'sig_atomic_t'. */
#define BITSIZEOF_SIG_ATOMIC_T 32
/* Define to the number of bits in type 'size_t'. */
-#define BITSIZEOF_SIZE_T 32
+#define BITSIZEOF_SIZE_T 64
/* Define to the number of bits in type 'wchar_t'. */
#define BITSIZEOF_WCHAR_T 32
@@ -388,7 +388,7 @@
#define HAVE_BTOWC 1
/* Define to 1 if nanosleep mishandles large arguments. */
-/* #undef HAVE_BUG_BIG_NANOSLEEP */
+#define HAVE_BUG_BIG_NANOSLEEP 1
/* Define to 1 if you have the <byteswap.h> header file. */
/* #undef HAVE_BYTESWAP_H */
@@ -745,7 +745,7 @@
/* Define to 1 if you have the declaration of `timegm', and to 0 if you don't.
*/
-#define HAVE_DECL_TIMEGM 1
+/* #undef HAVE_DECL_TIMEGM */
/* Define to 1 if you have the declaration of `trunc', and to 0 if you don't.
*/
@@ -1725,7 +1725,7 @@
#define HAVE_TERMIOS_H 1
/* Define to 1 if you have the `timegm' function. */
-#define HAVE_TIMEGM 1
+/* #undef HAVE_TIMEGM */
/* Define to 1 if you have the `times' function. */
#define HAVE_TIMES 1
@@ -1993,11 +1993,11 @@
/* Define if the vasnprintf implementation needs special code for 'double'
arguments. */
-#define NEED_PRINTF_DOUBLE 1
+/* #undef NEED_PRINTF_DOUBLE */
/* Define if the vasnprintf implementation needs special code for surviving
out-of-memory conditions. */
-#define NEED_PRINTF_ENOMEM 1
+/* #undef NEED_PRINTF_ENOMEM */
/* Define if the vasnprintf implementation needs special code for the ' flag.
*/
@@ -2021,7 +2021,7 @@
/* Define if the vasnprintf implementation needs special code for 'long
double' arguments. */
-#define NEED_PRINTF_LONG_DOUBLE 1
+/* #undef NEED_PRINTF_LONG_DOUBLE */
/* Define if the vasnprintf implementation needs special code for supporting
large precisions without arbitrary bounds. */
@@ -2069,7 +2069,7 @@
/* Define to l, ll, u, ul, ull, etc., as suitable for constants of type
'ptrdiff_t'. */
-#define PTRDIFF_T_SUFFIX
+#define PTRDIFF_T_SUFFIX l
/* If realloc(NULL,0) is != NULL, define this to 1. Otherwise define this to
0. */
@@ -2392,7 +2392,7 @@
/* #undef memcmp */
/* Define to rpl_mktime if the replacement function should be used. */
-/* #undef mktime */
+#define mktime rpl_mktime
/* Define to `int' if <sys/types.h> does not define. */
/* #undef mode_t */
--- build32/config.status 2008-11-18 10:48:47.000000000 +0100
+++ build64/config.status 2008-11-18 10:53:08.000000000 +0100
@@ -732,9 +734,9 @@
S["HAVE_NETINET_IN_H"]=""
S["NEXT_NETINET_IN_H"]=""
S["LIB_NANOSLEEP"]=""
-S["REPLACE_TIMEGM"]="0"
+S["REPLACE_TIMEGM"]="1"
S["REPLACE_STRPTIME"]="0"
-S["REPLACE_NANOSLEEP"]="0"
+S["REPLACE_NANOSLEEP"]="1"
S["REPLACE_LOCALTIME_R"]="0"
S["REPLACE_STRSIGNAL"]="0"
S["REPLACE_STRERROR"]="0"
@@ -813,9 +815,9 @@
S["ISINF_LIBM"]=""
S["ISFINITE_LIBM"]=""
S["INTTYPES_H"]="inttypes.h"
-S["UINT64_MAX_EQ_ULONG_MAX"]="0"
+S["UINT64_MAX_EQ_ULONG_MAX"]="1"
S["UINT32_MAX_LT_UINTMAX_MAX"]="1"
-S["INT64_MAX_EQ_LONG_MAX"]="0"
+S["INT64_MAX_EQ_LONG_MAX"]="1"
S["INT32_MAX_LT_INTMAX_MAX"]="1"
S["PRIPTR_PREFIX"]="\"l\""
S["NEXT_INTTYPES_H"]="<inttypes.h>"
@@ -833,15 +835,15 @@
S["WCHAR_T_SUFFIX"]=""
S["SIZE_T_SUFFIX"]="ul"
S["SIG_ATOMIC_T_SUFFIX"]=""
-S["PTRDIFF_T_SUFFIX"]=""
+S["PTRDIFF_T_SUFFIX"]="l"
S["HAVE_SIGNED_WINT_T"]="1"
S["HAVE_SIGNED_WCHAR_T"]="1"
S["HAVE_SIGNED_SIG_ATOMIC_T"]="1"
S["BITSIZEOF_WINT_T"]="32"
S["BITSIZEOF_WCHAR_T"]="32"
-S["BITSIZEOF_SIZE_T"]="32"
+S["BITSIZEOF_SIZE_T"]="64"
S["BITSIZEOF_SIG_ATOMIC_T"]="32"
-S["BITSIZEOF_PTRDIFF_T"]="32"
+S["BITSIZEOF_PTRDIFF_T"]="64"
S["HAVE_SYS_BITYPES_H"]="0"
S["HAVE_SYS_INTTYPES_H"]="0"
S["HAVE_STDINT_H"]="1"
