#62134 closed defect (fixed)
wget @1.21.1 does not build on PPC Leopard, Mac OS X 10.5.8, because of "error: 'for' loop initial declaration used outside C99 mode'"
| Reported by: | ballapete (Peter "Pete" Dyballa) | Owned by: | ryandesign (Ryan Carsten Schmidt) |
|---|---|---|---|
| Priority: | Normal | Milestone: | |
| Component: | ports | Version: | 2.6.4 |
| Keywords: | leopard | Cc: | |
| Port: | wget |
Description
/usr/bin/gcc-4.2 -DHAVE_CONFIG_H -I. -I../src -DDEFAULT_TEXT_DOMAIN=\"wget-gnulib\" -I/opt/local/include -DNDEBUG -pipe -Os -arch ppc -MT tempname.o -MD -MP -MF $depbase.Tpo -c -o tempname.o tempname.c &&\ mv -f $depbase.Tpo $depbase.Po tempname.c: In function 'random_bits': tempname.c:92: warning: integer constant is too large for 'long' type tempname.c:92: warning: this decimal constant is unsigned only in ISO C90 tempname.c: In function 'try_tempname_len': tempname.c:290: error: 'for' loop initial declaration used outside C99 mode make[3]: *** [tempname.o] Error 1 make[3]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_nue.de.rsync.macports.org_macports_release_tarballs_ports_net_wget/wget/work/wget-1.21.1/lib' make[2]: *** [all] Error 2
The function is this one:
233 #ifdef _LIBC
234 static
235 #endif
236 int
237 try_tempname_len (char *tmpl, int suffixlen, void *args,
238 int (*tryfunc) (char *, void *), size_t x_suffix_len)
239 {
240 size_t len;
241 char *XXXXXX;
242 unsigned int count;
243 int fd = -1;
244 int save_errno = errno;
245
246 /* A lower bound on the number of temporary files to attempt to
247 generate. The maximum total number of temporary file names that
248 can exist for a given template is 62**6. It should never be
249 necessary to try all of these combinations. Instead if a reasonable
250 number of names is tried (we define reasonable as 62**3) fail to
251 give the system administrator the chance to remove the problems.
252 This value requires that X_SUFFIX_LEN be at least 3. */
253 #define ATTEMPTS_MIN (62 * 62 * 62)
254
255 /* The number of times to attempt to generate a temporary file. To
256 conform to POSIX, this must be no smaller than TMP_MAX. */
257 #if ATTEMPTS_MIN < TMP_MAX
258 unsigned int attempts = TMP_MAX;
259 #else
260 unsigned int attempts = ATTEMPTS_MIN;
261 #endif
262
263 /* A random variable. The initial value is used only the for fallback path
264 on 'random_bits' on 'getrandom' failure. Its initial value tries to use
265 some entropy from the ASLR and ignore possible bits from the stack
266 alignment. */
267 random_value v = ((uintptr_t) &v) / alignof (max_align_t);
268
269 /* How many random base-62 digits can currently be extracted from V. */
270 int vdigits = 0;
271
272 /* Least unfair value for V. If V is less than this, V can generate
273 BASE_62_DIGITS digits fairly. Otherwise it might be biased. */
274 random_value const unfair_min
275 = RANDOM_VALUE_MAX - RANDOM_VALUE_MAX % BASE_62_POWER;
276
277 len = strlen (tmpl);
278 if (len < x_suffix_len + suffixlen
279 || strspn (&tmpl[len - x_suffix_len - suffixlen], "X") < x_suffix_len)
280 {
281 __set_errno (EINVAL);
282 return -1;
283 }
284
285 /* This is where the Xs start. */
286 XXXXXX = &tmpl[len - x_suffix_len - suffixlen];
287
288 for (count = 0; count < attempts; ++count)
289 {
290 for (size_t i = 0; i < x_suffix_len; i++) <<<<<<<<<<<<<<<
291 {
292 if (vdigits == 0)
293 {
294 do
295 v = random_bits (v);
296 while (unfair_min <= v);
297
298 vdigits = BASE_62_DIGITS;
299 }
300
301 XXXXXX[i] = letters[v % 62];
302 v /= 62;
303 vdigits--;
304 }
305
306 fd = tryfunc (tmpl, args);
307 if (fd >= 0)
308 {
309 __set_errno (save_errno);
310 return fd;
311 }
312 else if (errno != EEXIST)
313 return -1;
314 }
315
316 /* We got out of the loop because we ran out of combinations to try. */
317 __set_errno (EEXIST);
318 return -1;
319 }
I presume it's that "size_t i = 0;" that causes the error. (x_suffix_len is an argument of this function.) So we have two options to solve: GCC7 or declare both len and i at the beginning of the finction.
Attachments (2)
Change History (25)
Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
comment:1 follow-up: 2 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
Choosing the second solution the file is compiled and a new error appears:
/usr/bin/gcc-4.2 -DHAVE_CONFIG_H -DSYSTEM_WGETRC=\"/opt/local/etc/wgetrc\" -DLOCALEDIR=\"/opt/local/share/locale\" -I. -I../lib -I../lib -I/opt/local/include -DNDEBUG -pipe -Os -arch ppc -MT progress.o -MD -MP -MF $depbase.Tpo -c -o progress.o progress.c &&\ mv -f $depbase.Tpo $depbase.Po progress.c: In function 'bar_set_params': progress.c:1378: error: 'for' loop initial declaration used outside C99 mode make[3]: *** [progress.o] Error 1 make[3]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_nue.de.rsync.macports.org_macports_release_tarballs_ports_net_wget/wget/work/wget-1.21.1/src'
Its cause is similar:
1366 static void
1367 bar_set_params (const char *params)
1368 {
1369 /* if run_with_timeout() will be used for read, needs to disable interactive bar,
1370 or on every timeout(1s) we will have 'retry' with error "decryption failed" */
1371 #if (defined(HAVE_LIBSSL) || defined(HAVE_LIBSSL32)) && defined(OPENSSL_RUN_WITHTIMEOUT)
1372 current_impl->interactive = false;
1373 #else
1374 current_impl->interactive = true;
1375 #endif
1376 if (params)
1377 {
1378 for (const char *param = params; *param; )
1379 {
1380 if (!strncmp (param, "force", 5))
1381 current_impl_locked = 1;
1382 else if (!strncmp (param, "noscroll", 8))
1383 opt.noscroll = true;
1384
1385 if (*(param = strchrnul(param, ':')))
1386 param++;
1387 }
1388 }
Here the re-declaration of param looks faulty since its type is known from the function's definition.
comment:2 follow-up: 3 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
Here the re-declaration of
paramlooks faulty since its type is known from the function's definition.
Which is a faulty assumption:
progress.c: In function 'bar_set_params': progress.c:1378: error: 'param' undeclared (first use in this function) progress.c:1378: error: (Each undeclared identifier is reported only once progress.c:1378: error: for each function it appears in.)
comment:3 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
Because the variable's name is without "s"!
Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
| Attachment: | Leopard.patch added |
|---|
Patch set to make wget @1.21.1 compile with GCC 7 on Leopard
comment:4 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
make check fails like this:
make[4]: Leaving directory '/opt/local/var/macports/build/_opt_local_var_macports_sources_nue.de.rsync.macports.org_macports_release_tarballs_ports_net_wget/wget/work/wget-1.21.1/src'
/usr/bin/gcc-4.2 -DNDEBUG -pipe -Os -arch ppc -L/opt/local/lib -Wl,-headerpad_max_install_names -arch ppc -o wget_cookie_fuzzer wget_cookie_fuzzer.o main.o ../src/libunittest.a ../lib/libgnu.a /opt/local/lib/libiconv.dylib /opt/local/lib/libintl.dylib -Wl,-framework -Wl,CoreFoundation -lpthread -Wl,-framework -Wl,CoreFoundation -L/opt/local/lib -lpcre2-8 -lidn2 -lnettle /opt/local/lib/libgnutls.dylib -L/opt/local/lib -lz -L/opt/local/lib -lpsl
Undefined symbols:
"_uc_width", referenced from:
_rpl_wcwidth in libgnu.a(wcwidth.o)
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[3]: *** [Makefile:1999: wget_cookie_fuzzer] Error 1
make[3]: Leaving directory '/opt/local/var/macports/build/_opt_local_var_macports_sources_nue.de.rsync.macports.org_macports_release_tarballs_ports_net_wget/wget/work/wget-1.21.1/fuzz'
I am going to try GCC7!
comment:5 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
configure: WARNING: unrecognized options: --without-libpth-prefix
comment:6 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
With GCC7 it compiles without patch set, make check fails the same way.
comment:7 Changed 3 years ago by mf2k (Frank Schima)
| Cc: | ryandesign@… removed |
|---|---|
| Owner: | set to ryandesign |
| Status: | new → assigned |
comment:8 Changed 3 years ago by jmroot (Joshua Root)
You don't need gcc7, gcc-4.2 supports -std=c99, it just doesn't have it on by default. Upstream should probably be checking for C99 compiler support if they use C99 features of course.
comment:9 Changed 3 years ago by kencu (Ken)
comment:10 Changed 3 years ago by kencu (Ken)
| Resolution: | → fixed |
|---|---|
| Status: | assigned → closed |
comment:11 follow-ups: 13 21 Changed 3 years ago by ryandesign (Ryan Carsten Schmidt)
Replying to ballapete:
tempname.c: In function 'random_bits': tempname.c:92: warning: integer constant is too large for 'long' type tempname.c:92: warning: this decimal constant is unsigned only in ISO C90 tempname.c: In function 'try_tempname_len': tempname.c:290: error: 'for' loop initial declaration used outside C99 mode
This was reported to the developers here:
https://lists.gnu.org/archive/html/bug-wget/2021-01/msg00004.html
A similar patch was provided to the developers here:
https://lists.gnu.org/archive/html/bug-wget/2021-01/msg00010.html
https://github.com/noloader/Build-Scripts/blob/master/patch/wget.patch
I don't know if they wish to apply it. If not, requiring C99 mode per Ken's commit above is fine.
comment:12 Changed 3 years ago by ryandesign (Ryan Carsten Schmidt)
comment:13 Changed 3 years ago by jmroot (Joshua Root)
Replying to ryandesign:
This was reported to the developers here:
https://lists.gnu.org/archive/html/bug-wget/2021-01/msg00004.html
A similar patch was provided to the developers here:
https://lists.gnu.org/archive/html/bug-wget/2021-01/msg00010.html
https://github.com/noloader/Build-Scripts/blob/master/patch/wget.patchI don't know if they wish to apply it. If not, requiring C99 mode per Ken's commit above is fine.
A later message in that thread says that the code does require C99, and that the configure script should be adding -std=gnu99 to CFLAGS in these circumstances, and that the real bug is that it isn't. https://lists.gnu.org/archive/html/bug-wget/2021-01/msg00009.html
comment:14 Changed 3 years ago by jmroot (Joshua Root)
:info:configure checking for /usr/bin/gcc-4.2 option to enable C99 features... none needed
This is clearly incorrect. The config.log would be needed to see why this check didn't work.
comment:15 follow-up: 22 Changed 3 years ago by kencu (Ken)
It built on 10.5 Intel with the tiny little addition to the Portfile, so that will save Pete 100 more messages.
However, Jeff there (noloader) appears to have found some other issues building it on PPC I guess, as per his github patch; I haven't tried PPC yet :>
Another day.
comment:16 follow-up: 17 Changed 3 years ago by ryandesign (Ryan Carsten Schmidt)
Checking on a 10.6 machine, where the compiler is also gcc-4.2, running ./configure outside of MacPorts, the config.log unfortunately provides no details about why is incorrectly believes C99 is supported without a flag:
configure:5958: checking for gcc option to enable C99 features configure:5973: gcc -c -g -O2 conftest.c >&5 configure:5973: $? = 0 configure:5988: result: none needed
comment:17 follow-up: 18 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
Replying to ryandesign:
On PPC Tiger, Mac OS X 10.4.11 I can see:
checking for gcc... /opt/local/bin/gcc-apple-4.2 checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether the compiler supports GNU C... yes checking whether /opt/local/bin/gcc-apple-4.2 accepts -g... yes checking for /opt/local/bin/gcc-apple-4.2 option to enable C11 features... unsupported checking for /opt/local/bin/gcc-apple-4.2 option to enable C99 features... none needed checking whether /opt/local/bin/gcc-apple-4.2 understands -c and -o together... yes checking whether the compiler is clang... no checking for compiler option needed when checking for declarations... none checking dependency style of /opt/local/bin/gcc-apple-4.2... gcc3
and in config.log this is recorded:
configure:5912: checking for /opt/local/bin/gcc-apple-4.2 option to enable C11 features
configure:5927: /opt/local/bin/gcc-apple-4.2 -c -pipe -Os -arch ppc -I/opt/local/include conftest.c >&5
conftest.c:63:3: error: #error "Compiler does not advertise C99 conformance"
conftest.c:118: error: expected ';', ',' or ')' before 'text'
conftest.c:167:3: error: #error "Compiler does not advertise C11 conformance"
conftest.c: In function '_Alignas':
conftest.c:171: error: expected declaration specifiers before 'aligned_as_double'
conftest.c:172: error: expected declaration specifiers or '...' before numeric constant
conftest.c:172: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'no_special_alignment'
conftest.c:173: error: storage class specified for parameter 'aligned_as_int'
conftest.c:174: error: expected declaration specifiers or '...' before numeric constant
conftest.c:174: error: expected '=', ',', ';', 'asm' or '__attribute__' before '_Alignas'
conftest.c:179: error: expected expression before 'int'
conftest.c:179: error: enumerator value for 'int_alignment' is not an integer constant
conftest.c:180: error: expected expression before 'int'
conftest.c:180: error: enumerator value for 'int_array_alignment' is not an integer constant
conftest.c:181: error: expected expression before 'char'
conftest.c:182: error: enumerator value for 'char_alignment' is not an integer constant
conftest.c:182: warning: empty declaration
conftest.c:183: error: expected declaration specifiers before '_Static_assert'
conftest.c:186: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'does_not_return'
conftest.c:192: error: expected specifier-qualifier-list before '_Static_assert'
conftest.c:195: warning: empty declaration
conftest.c:199: error: parameter 'utf8_literal' is initialized
conftest.c:199: error: 'syntax' undeclared (first use in this function)
conftest.c:199: error: (Each undeclared identifier is reported only once
conftest.c:199: error: for each function it appears in.)
conftest.c:199: error: expected ',' or ';' before 'error'
conftest.c:202: error: storage class specified for parameter 'long_ptr'
conftest.c:203: error: storage class specified for parameter 'long_ptr'
conftest.c:203: error: redefinition of parameter 'long_ptr'
conftest.c:202: error: previous definition of 'long_ptr' was here
conftest.c:204: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'long_ptr'
conftest.c:219: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
conftest.c:271: error: old-style parameter declarations in prototyped function definition
conftest.c:171: error: parameter name omitted
conftest.c:271: error: expected '{' at end of input
configure:5927: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "wget"
| #define PACKAGE_TARNAME "wget"
| #define PACKAGE_VERSION "1.21.1"
| #define PACKAGE_STRING "wget 1.21.1"
| #define PACKAGE_BUGREPORT "bug-wget@gnu.org"
| #define PACKAGE_URL ""
| #define PACKAGE "wget"
| #define VERSION "1.21.1"
| /* end confdefs.h. */
|
| /* Does the compiler advertise C89 conformance?
| Do not test the value of __STDC__, because some compilers set it to 0
| while being otherwise adequately conformant. */
| #if !defined __STDC__
| # error "Compiler does not advertise C89 conformance"
| #endif
|
| #include <stddef.h>
| #include <stdarg.h>
| struct stat;
| /* Most of the following tests are stolen from RCS 5.7 src/conf.sh. */
| struct buf { int x; };
| struct buf * (*rcsopen) (struct buf *, struct stat *, int);
| static char *e (p, i)
| char **p;
| int i;
| {
| return p[i];
| }
| static char *f (char * (*g) (char **, int), char **p, ...)
| {
| char *s;
| va_list v;
| va_start (v,p);
| s = g (p, va_arg (v,int));
| va_end (v);
| return s;
| }
|
| /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
| function prototypes and stuff, but not \xHH hex character constants.
| These do not provoke an error unfortunately, instead are silently treated
| as an "x". The following induces an error, until -std is added to get
| proper ANSI mode. Curiously \x00 != x always comes out true, for an
| array size at least. It is necessary to write \x00 == 0 to get something
| that is true only with -std. */
| int osf4_cc_array ['\x00' == 0 ? 1 : -1];
|
| /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
| inside strings and character constants. */
| #define FOO(x) 'x'
| int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
|
| int test (int i, double x);
| struct s1 {int (*f) (int a);};
| struct s2 {int (*f) (double a);};
| int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
| int, int);
|
| // Does the compiler advertise C99 conformance?
| #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
| # error "Compiler does not advertise C99 conformance"
| #endif
|
| #include <stdbool.h>
| extern int puts (const char *);
| extern int printf (const char *, ...);
| extern int dprintf (int, const char *, ...);
| extern void *malloc (size_t);
|
| // Check varargs macros. These examples are taken from C99 6.10.3.5.
| // dprintf is used instead of fprintf to avoid needing to declare
| // FILE and stderr.
| #define debug(...) dprintf (2, __VA_ARGS__)
| #define showlist(...) puts (#__VA_ARGS__)
| #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
| static void
| test_varargs_macros (void)
| {
| int x = 1234;
| int y = 5678;
| debug ("Flag");
| debug ("X = %d\n", x);
| showlist (The first, second, and third items.);
| report (x>y, "x is %d but y is %d", x, y);
| }
|
| // Check long long types.
| #define BIG64 18446744073709551615ull
| #define BIG32 4294967295ul
| #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
| #if !BIG_OK
| #error "your preprocessor is broken"
| #endif
| #if BIG_OK
| #else
| #error "your preprocessor is broken"
| #endif
| static long long int bignum = -9223372036854775807LL;
| static unsigned long long int ubignum = BIG64;
|
| struct incomplete_array
| {
| int datasize;
| double data[];
| };
|
| struct named_init {
| int number;
| const wchar_t *name;
| double average;
| };
|
| typedef const char *ccp;
|
| static inline int
| test_restrict (ccp restrict text)
| {
| // See if C++-style comments work.
| // Iterate through items via the restricted pointer.
| // Also check for declarations in for loops.
| for (unsigned int i = 0; *(text+i) != '\0'; ++i)
| continue;
| return 0;
| }
|
| // Check varargs and va_copy.
| static bool
| test_varargs (const char *format, ...)
| {
| va_list args;
| va_start (args, format);
| va_list args_copy;
| va_copy (args_copy, args);
|
| const char *str = "";
| int number = 0;
| float fnumber = 0;
|
| while (*format)
| {
| switch (*format++)
| {
| case 's': // string
| str = va_arg (args_copy, const char *);
| break;
| case 'd': // int
| number = va_arg (args_copy, int);
| break;
| case 'f': // float
| fnumber = va_arg (args_copy, double);
| break;
| default:
| break;
| }
| }
| va_end (args_copy);
| va_end (args);
|
| return *str && number && fnumber;
| }
|
|
| // Does the compiler advertise C11 conformance?
| #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
| # error "Compiler does not advertise C11 conformance"
| #endif
|
| // Check _Alignas.
| char _Alignas (double) aligned_as_double;
| char _Alignas (0) no_special_alignment;
| extern char aligned_as_int;
| char _Alignas (0) _Alignas (int) aligned_as_int;
|
| // Check _Alignof.
| enum
| {
| int_alignment = _Alignof (int),
| int_array_alignment = _Alignof (int[100]),
| char_alignment = _Alignof (char)
| };
| _Static_assert (0 < -_Alignof (int), "_Alignof is signed");
|
| // Check _Noreturn.
| int _Noreturn does_not_return (void) { for (;;) continue; }
|
| // Check _Static_assert.
| struct test_static_assert
| {
| int x;
| _Static_assert (sizeof (int) <= sizeof (long int),
| "_Static_assert does not work in struct");
| long int y;
| };
|
| // Check UTF-8 literals.
| #define u8 syntax error!
| char const utf8_literal[] = u8"happens to be ASCII" "another string";
|
| // Check duplicate typedefs.
| typedef long *long_ptr;
| typedef long int *long_ptr;
| typedef long_ptr long_ptr;
|
| // Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
| struct anonymous
| {
| union {
| struct { int i; int j; };
| struct { int k; long int l; } w;
| };
| int m;
| } v1;
|
|
| int
| main (int argc, char **argv)
| {
| int ok = 0;
|
| ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
|
|
| // Check bool.
| _Bool success = false;
| success |= (argc != 0);
|
| // Check restrict.
| if (test_restrict ("String literal") == 0)
| success = true;
| char *restrict newvar = "Another string";
|
| // Check varargs.
| success &= test_varargs ("s, d' f .", "string", 65, 34.234);
| test_varargs_macros ();
|
| // Check flexible array members.
| struct incomplete_array *ia =
| malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
| ia->datasize = 10;
| for (int i = 0; i < ia->datasize; ++i)
| ia->data[i] = i * 1.234;
|
| // Check named initializers.
| struct named_init ni = {
| .number = 34,
| .name = L"Test wide string",
| .average = 543.34343,
| };
|
| ni.number = 58;
|
| int dynamic_array[ni.number];
| dynamic_array[0] = argv[0][0];
| dynamic_array[ni.number - 1] = 543;
|
| // work around unused variable warnings
| ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
| || dynamic_array[ni.number - 1] != 543);
|
|
| _Static_assert ((offsetof (struct anonymous, i)
| == offsetof (struct anonymous, w.k)),
| "Anonymous union alignment botch");
| v1.i = 2;
| v1.w.k = 5;
| ok |= v1.i != 5;
|
| return ok;
| }
|
configure:5927: /opt/local/bin/gcc-apple-4.2 -std=gnu11 -c -pipe -Os -arch ppc -I/opt/local/include conftest.c >&5
cc1: error: unrecognized command line option "-std=gnu11"
configure:5927: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "wget"
| #define PACKAGE_TARNAME "wget"
| #define PACKAGE_VERSION "1.21.1"
| #define PACKAGE_STRING "wget 1.21.1"
| #define PACKAGE_BUGREPORT "bug-wget@gnu.org"
| #define PACKAGE_URL ""
| #define PACKAGE "wget"
| #define VERSION "1.21.1"
| /* end confdefs.h. */
|
| /* Does the compiler advertise C89 conformance?
| Do not test the value of __STDC__, because some compilers set it to 0
| while being otherwise adequately conformant. */
| #if !defined __STDC__
| # error "Compiler does not advertise C89 conformance"
| #endif
|
| #include <stddef.h>
| #include <stdarg.h>
| struct stat;
| /* Most of the following tests are stolen from RCS 5.7 src/conf.sh. */
| struct buf { int x; };
| struct buf * (*rcsopen) (struct buf *, struct stat *, int);
| static char *e (p, i)
| char **p;
| int i;
| {
| return p[i];
| }
| static char *f (char * (*g) (char **, int), char **p, ...)
| {
| char *s;
| va_list v;
| va_start (v,p);
| s = g (p, va_arg (v,int));
| va_end (v);
| return s;
| }
|
| /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
| function prototypes and stuff, but not \xHH hex character constants.
| These do not provoke an error unfortunately, instead are silently treated
| as an "x". The following induces an error, until -std is added to get
| proper ANSI mode. Curiously \x00 != x always comes out true, for an
| array size at least. It is necessary to write \x00 == 0 to get something
| that is true only with -std. */
| int osf4_cc_array ['\x00' == 0 ? 1 : -1];
|
| /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
| inside strings and character constants. */
| #define FOO(x) 'x'
| int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
|
| int test (int i, double x);
| struct s1 {int (*f) (int a);};
| struct s2 {int (*f) (double a);};
| int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
| int, int);
|
| // Does the compiler advertise C99 conformance?
| #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
| # error "Compiler does not advertise C99 conformance"
| #endif
|
| #include <stdbool.h>
| extern int puts (const char *);
| extern int printf (const char *, ...);
| extern int dprintf (int, const char *, ...);
| extern void *malloc (size_t);
|
| // Check varargs macros. These examples are taken from C99 6.10.3.5.
| // dprintf is used instead of fprintf to avoid needing to declare
| // FILE and stderr.
| #define debug(...) dprintf (2, __VA_ARGS__)
| #define showlist(...) puts (#__VA_ARGS__)
| #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
| static void
| test_varargs_macros (void)
| {
| int x = 1234;
| int y = 5678;
| debug ("Flag");
| debug ("X = %d\n", x);
| showlist (The first, second, and third items.);
| report (x>y, "x is %d but y is %d", x, y);
| }
|
| // Check long long types.
| #define BIG64 18446744073709551615ull
| #define BIG32 4294967295ul
| #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
| #if !BIG_OK
| #error "your preprocessor is broken"
| #endif
| #if BIG_OK
| #else
| #error "your preprocessor is broken"
| #endif
| static long long int bignum = -9223372036854775807LL;
| static unsigned long long int ubignum = BIG64;
|
| struct incomplete_array
| {
| int datasize;
| double data[];
| };
|
| struct named_init {
| int number;
| const wchar_t *name;
| double average;
| };
|
| typedef const char *ccp;
|
| static inline int
| test_restrict (ccp restrict text)
| {
| // See if C++-style comments work.
| // Iterate through items via the restricted pointer.
| // Also check for declarations in for loops.
| for (unsigned int i = 0; *(text+i) != '\0'; ++i)
| continue;
| return 0;
| }
|
| // Check varargs and va_copy.
| static bool
| test_varargs (const char *format, ...)
| {
| va_list args;
| va_start (args, format);
| va_list args_copy;
| va_copy (args_copy, args);
|
| const char *str = "";
| int number = 0;
| float fnumber = 0;
|
| while (*format)
| {
| switch (*format++)
| {
| case 's': // string
| str = va_arg (args_copy, const char *);
| break;
| case 'd': // int
| number = va_arg (args_copy, int);
| break;
| case 'f': // float
| fnumber = va_arg (args_copy, double);
| break;
| default:
| break;
| }
| }
| va_end (args_copy);
| va_end (args);
|
| return *str && number && fnumber;
| }
|
|
| // Does the compiler advertise C11 conformance?
| #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
| # error "Compiler does not advertise C11 conformance"
| #endif
|
| // Check _Alignas.
| char _Alignas (double) aligned_as_double;
| char _Alignas (0) no_special_alignment;
| extern char aligned_as_int;
| char _Alignas (0) _Alignas (int) aligned_as_int;
|
| // Check _Alignof.
| enum
| {
| int_alignment = _Alignof (int),
| int_array_alignment = _Alignof (int[100]),
| char_alignment = _Alignof (char)
| };
| _Static_assert (0 < -_Alignof (int), "_Alignof is signed");
|
| // Check _Noreturn.
| int _Noreturn does_not_return (void) { for (;;) continue; }
|
| // Check _Static_assert.
| struct test_static_assert
| {
| int x;
| _Static_assert (sizeof (int) <= sizeof (long int),
| "_Static_assert does not work in struct");
| long int y;
| };
|
| // Check UTF-8 literals.
| #define u8 syntax error!
| char const utf8_literal[] = u8"happens to be ASCII" "another string";
|
| // Check duplicate typedefs.
| typedef long *long_ptr;
| typedef long int *long_ptr;
| typedef long_ptr long_ptr;
|
| // Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
| struct anonymous
| {
| union {
| struct { int i; int j; };
| struct { int k; long int l; } w;
| };
| int m;
| } v1;
|
|
| int
| main (int argc, char **argv)
| {
| int ok = 0;
|
| ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
|
|
| // Check bool.
| _Bool success = false;
| success |= (argc != 0);
|
| // Check restrict.
| if (test_restrict ("String literal") == 0)
| success = true;
| char *restrict newvar = "Another string";
|
| // Check varargs.
| success &= test_varargs ("s, d' f .", "string", 65, 34.234);
| test_varargs_macros ();
|
| // Check flexible array members.
| struct incomplete_array *ia =
| malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
| ia->datasize = 10;
| for (int i = 0; i < ia->datasize; ++i)
| ia->data[i] = i * 1.234;
|
| // Check named initializers.
| struct named_init ni = {
| .number = 34,
| .name = L"Test wide string",
| .average = 543.34343,
| };
|
| ni.number = 58;
|
| int dynamic_array[ni.number];
| dynamic_array[0] = argv[0][0];
| dynamic_array[ni.number - 1] = 543;
|
| // work around unused variable warnings
| ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
| || dynamic_array[ni.number - 1] != 543);
|
|
| _Static_assert ((offsetof (struct anonymous, i)
| == offsetof (struct anonymous, w.k)),
| "Anonymous union alignment botch");
| v1.i = 2;
| v1.w.k = 5;
| ok |= v1.i != 5;
|
| return ok;
| }
|
configure:5945: result: unsupported
configure:5958: checking for /opt/local/bin/gcc-apple-4.2 option to enable C99 features
configure:5973: /opt/local/bin/gcc-apple-4.2 -c -pipe -Os -arch ppc -I/opt/local/include conftest.c >&5
configure:5973: $? = 0
configure:5988: result: none needed
The configure script has:
5912 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
5913 printf %s "checking for $CC option to enable C11 features... " >&6; }
5914 if test ${ac_cv_prog_cc_c11+y}
5915 then :
5916 printf %s "(cached) " >&6
5917 else $as_nop
5918 ac_cv_prog_cc_c11=no
5919 ac_save_CC=$CC
5920 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
5921 /* end confdefs.h. */
5922 $ac_c_conftest_c11_program
5923 _ACEOF
5924 for ac_arg in '' -std=gnu11
5925 do
5926 CC="$ac_save_CC $ac_arg"
5927 if ac_fn_c_try_compile "$LINENO"
5928 then :
5929 ac_cv_prog_cc_c11=$ac_arg
5930 fi
5931 rm -f core conftest.err conftest.$ac_objext conftest.beam
5932 test "x$ac_cv_prog_cc_c11" != "xno" && break
5933 done
5934 rm -f conftest.$ac_ext
5935 CC=$ac_save_CC
5936
5937 fi
5938 # AC_CACHE_VAL
5939 ac_prog_cc_stdc_options=
5940 case "x$ac_cv_prog_cc_c11" in #(
5941 x) :
5942 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
5943 printf "%s\n" "none needed" >&6; } ;; #(
5944 xno) :
5945 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
5946 printf "%s\n" "unsupported" >&6; } ;; #(
5947 *) :
5948 ac_prog_cc_stdc_options=" $ac_cv_prog_cc_c11"
5949 CC="$CC$ac_prog_cc_stdc_options"
5950 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
5951 printf "%s\n" "$ac_cv_prog_cc_c11" >&6; } ;;
5952 esac
5953 if test "x$ac_cv_prog_cc_c11" != xno
5954 then :
5955 ac_prog_cc_stdc=c11
5956 ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
5957 else $as_nop
5958 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
5959 printf %s "checking for $CC option to enable C99 features... " >&6; }
5960 if test ${ac_cv_prog_cc_c99+y}
5961 then :
5962 printf %s "(cached) " >&6
5963 else $as_nop
5964 ac_cv_prog_cc_c99=no
5965 ac_save_CC=$CC
5966 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
5967 /* end confdefs.h. */
5968 $ac_c_conftest_c89_program
5969 _ACEOF
5970 for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -D_STDC_C99= -qlanglvl=extc1x -qlanglvl=extc99
5971 do
5972 CC="$ac_save_CC $ac_arg"
5973 if ac_fn_c_try_compile "$LINENO"
5974 then :
5975 ac_cv_prog_cc_c99=$ac_arg
5976 fi
5977 rm -f core conftest.err conftest.$ac_objext conftest.beam
5978 test "x$ac_cv_prog_cc_c99" != "xno" && break
5979 done
5980 rm -f conftest.$ac_ext
5981 CC=$ac_save_CC
5982
5983 fi
5984 # AC_CACHE_VAL
5985 ac_prog_cc_stdc_options=
5986 case "x$ac_cv_prog_cc_c99" in #(
5987 x) :
5988 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
5989 printf "%s\n" "none needed" >&6; } ;; #(
5990 xno) :
5991 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
5992 printf "%s\n" "unsupported" >&6; } ;; #(
5993 *) :
5994 ac_prog_cc_stdc_options=" $ac_cv_prog_cc_c99"
5995 CC="$CC$ac_prog_cc_stdc_options"
5996 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
5997 printf "%s\n" "$ac_cv_prog_cc_c99" >&6; } ;;
5998 esac
5999 if test "x$ac_cv_prog_cc_c99" != xno
6000 then :
6001 ac_prog_cc_stdc=c99
6002 ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
6003 else $as_nop
6004 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
6005 printf %s "checking for $CC option to enable C89 features... " >&6; }
6006 if test ${ac_cv_prog_cc_c89+y}
6007 then :
6008 printf %s "(cached) " >&6
6009 else $as_nop
6010 ac_cv_prog_cc_c89=no
6011 ac_save_CC=$CC
6012 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
6013 /* end confdefs.h. */
6014 $ac_c_conftest_c89_program
6015 _ACEOF
6016 for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
6017 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
6018 do
6019 CC="$ac_save_CC $ac_arg"
6020 if ac_fn_c_try_compile "$LINENO"
6021 then :
6022 ac_cv_prog_cc_c89=$ac_arg
6023 fi
6024 rm -f core conftest.err conftest.$ac_objext conftest.beam
6025 test "x$ac_cv_prog_cc_c89" != "xno" && break
6026 done
6027 rm -f conftest.$ac_ext
6028 CC=$ac_save_CC
6029
6030 fi
6031 # AC_CACHE_VAL
6032 ac_prog_cc_stdc_options=
6033 case "x$ac_cv_prog_cc_c89" in #(
6034 x) :
6035 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
6036 printf "%s\n" "none needed" >&6; } ;; #(
6037 xno) :
6038 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
6039 printf "%s\n" "unsupported" >&6; } ;; #(
6040 *) :
6041 ac_prog_cc_stdc_options=" $ac_cv_prog_cc_c89"
6042 CC="$CC$ac_prog_cc_stdc_options"
6043 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
6044 printf "%s\n" "$ac_cv_prog_cc_c89" >&6; } ;;
6045 esac
6046 if test "x$ac_cv_prog_cc_c89" != xno
6047 then :
6048 ac_prog_cc_stdc=c89
6049 ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
6050 else $as_nop
6051 ac_prog_cc_stdc=no
6052 ac_cv_prog_cc_stdc=no
6053 fi
6054
6055 fi
6056
6057 fi
To me it looks as if the wrong tests were performed for C11 resp. C99. GCC 4.2 ("4.2.4 (Apple Inc. build 5666) (dot 3) (MacPorts apple-gcc42 5666.3_16+gpl3)") defines __STDC__ to 1 and does not define __STDC_VERSION__. The correct options for this version of GCC are:
-std=c89 Conform to the ISO 1990 C standard -std=c99 Conform to the ISO 1999 C standard -std=c9x Deprecated in favor of -std=c99 -std=gnu89 Conform to the ISO 1990 C standard with GNU extensions -std=gnu99 Conform to the ISO 1999 C standard with GNU extensions -std=gnu9x Deprecated in favor of -std=gnu99 -std=iso9899:1990 Conform to the ISO 1990 C standard -std=iso9899:199409 Conform to the ISO 1990 C standard as amended in 1994 -std=iso9899:1999 Conform to the ISO 1999 C standard -std=iso9899:199x Deprecated in favor of -std=iso9899:1999 -ansi A synonym for -std=c89 (for C) or -std=c++98 (for C++) -std=c++98 Conform to the ISO 1998 C++ standard -std=gnu++98 Conform to the ISO 1998 C++ standard with GNU extensions
No modern C++ standard is supported.
comment:18 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
Replying to ryandesign:
(MacPorts gcc7 7.5.0_2) version 7.5.0 (ppc-apple-darwin8), GGC7, defines:
#define __STDC__ 1 #define __STDC_VERSION__ 201112L
comment:19 follow-up: 20 Changed 3 years ago by ryandesign (Ryan Carsten Schmidt)
The tests for C99 and C11 support are probably not unique to wget. I guess they're part of gnulib. If they're not working right, you should probably report it to the developers of gnulib so they can fix it.
comment:20 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
Replying to ryandesign:
In https://lists.gnu.org/archive/html/bug-gnulib/2021-01/msg00292.html and following messages is described that the problem came up earlier this year. Patches to Autoconf 2.70, the culprit, are provided. Could be I can try a few things later – when compilation on Tiger has finished and GNU Emacs is free for other work.
comment:21 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
Replying to ryandesign:
This was reported to the developers here:
https://lists.gnu.org/archive/html/bug-wget/2021-01/msg00004.html
I could read this thread but could not fetch the patch:
pete 259 /\ env LANG=C wget -vd https://github.com/noloader/Build-Scripts/blob/master/patch/wget.patch DEBUG output created by Wget 1.20.3 on darwin8.11.0. Reading HSTS entries from /Users/pete/.wget-hsts URI encoding = ‘UTF-8’ Converted file name 'wget.patch' (UTF-8) -> 'wget.patch' (UTF-8) --2021-01-26 17:45:29-- https://github.com/noloader/Build-Scripts/blob/master/patch/wget.patch Certificates loaded: 129 Resolving github.com (github.com)... failed: No address associated with nodename. wget: unable to resolve host address ‘github.com’ Exit 4
Is it really necessary to be dependent on Microsoft? It wouldn't hurt when you're finished – but this m oment has not arrived yet.
comment:22 Changed 3 years ago by ballapete (Peter "Pete" Dyballa)
Replying to kencu:
With the updated Portfile, containing now
92 # tempname.c:290: error: 'for' loop initial declaration used outside C99 mode
93 configure.cflags-append -std=c99
I now have:
The following ports are currently installed: wget @1.20.3_3+gnutls wget @1.21.1_0+gnutls (active)
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