Alan Coopersmith wrote:
> Thanks. For now, I'm using:
>
> #elif (__STDC_VERSION__ >= 199901L) /* C99 */ || \
> (defined(__SUNPRO_C) && defined(__C99FEATURES__))
> # define INLINE inline
>
> and
>
> # if (__STDC_VERSION__ >= 199901L) /* C99 */ || \
> (defined(__SUNPRO_C) && defined(__C99FEATURES__))
> # define __FUNCTION__ __func__
> # else
> # define __FUNCTION__ "<unknown>"
> # endif
>
> But with the big push to port lots of open source packages to
> OpenSolaris & Sun Studio, it would be very helpful to have a
> central list of things like this that people could reference
> instead of having to research.
>
> I think Chris had set up a wiki on wikis.sun.com for things like
> the Sun Studio wizard flags - would you guys like to add it there
> or should we put in the OpenSolaris wiki on genunix.org instead?
Go ahead and put things like this on OpenSolaris wiki. We should
put it on Chris' wiki also. I don't know when one of us will get
to doing that.
>
> A few contributions I can think of from our previous porting work
> in X (and I'd love to hear if we got any wrong or could be doing
> these better - some of these are several years old, hence the
> "Forte" references still):
>
> -- GNU autoconf checks
>
> - Is Sun Studio compiler in use?
>
> AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
>
> - Can -xc99 be used?
>
> # -xc99 is only in Sun/Forte cc 6.2 and later
> # It enables C99-ism's such as inline & C++ comments
> AC_MSG_CHECKING([whether Sun/Forte cc -xc99 option works])
> save_CFLAGS="${CFLAGS}"
> CFLAGS="${CFLAGS} -xc99"
> AC_TRY_COMPILE([inline int foo () {return 0; }],
> [int a = foo();], AC_MSG_RESULT([yes]),
> AC_MSG_RESULT([no])
> AC_MSG_CHECKING([[whether Sun/Forte cc -xc99=%all,no_lib option
> works]])
> [CFLAGS="${save_CFLAGS} -xc99=%all,no_lib"]
> AC_TRY_COMPILE([inline int foo () {return 0; }],
> [int a = foo();], AC_MSG_RESULT([yes]),
> CFLAGS="$save_CFLAGS -xCC" ; AC_MSG_RESULT([no])))
>
>
> - Common compiler flags
>
> if test "$GCC" = "yes" ; then
> SHAREDLIB_LDFLAGS="-shared"
> DEPEND_CCFLAGS="-MM"
> OPTIMIZER_CFLAGS="-O2"
> OPTIMIZER_CXXFLAGS="-O2"
> WARNING_CFLAGS="-Wall"
> fi
>
> if test "$SUNCC" = "yes" ; then
> SHAREDLIB_LDFLAGS="-G"
> DEPEND_CCFLAGS="-xM1"
> OPTIMIZER_CFLAGS="-xO4 -xlibmil -xdepend"
> OPTIMIZER_CXXFLAGS="-xO4 -xlibmil"
> WARNING_CFLAGS="-v"
> fi
>
> -- C source code
>
> - Symbol visibility attributes:
>
> Note that GCC allows these at the end of function declarations,
> but Sun Studio requires them at the beginning, such as:
> EXPORT void foo(int bar);
>
> #if defined(__GNUC__) && (__GNUC__ >= 4)
> # define EXPORT __attribute__((visibility("default")))
> # define HIDDEN __attribute__((visibility("hidden")))
> # define INTERNAL __attribute__((visibility("internal")))
> #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
> # define EXPORT __global
> # define HIDDEN __hidden
> # define INTERNAL __hidden
> #else /* not gcc >= 4 and not Sun Studio >= 8 */
> # define EXPORT
> # define HIDDEN
> # define INTERNAL
> #endif /* GNUC >= 4 */
>
> - Weak symbols:
>
> #if defined(__ELF__) && defined(__GNUC__) && (__GNUC__ >= 3)
> #define weak __attribute__((weak))
> #else
> #define weak
> #endif
>
> #ifdef __SUNPRO_C
> #pragma weak foo
> #endif
>
> weak int foo(int bar);
>
>
> -Alan Coopersmith- alan.coopersmith at sun.com
> Sun Microsystems, Inc. - X Window System Engineering
>
>
> Douglas Walls wrote:
>> Alan,
>>
>> The compiler default of -xc99=all,no_lib
>> is C99 language features, but C90 library behavior.
>>
>> -xc99=all gets both C99 language and library features, and results
>> in setting __STDC_VERSION__ to 199901L. C99 library support is
>> only available on Solaris 10 and later.
>>
>> If all you need are the C99 language features (and I believe that is so),
>> the Sun Studio compiler predefines __C99FEATURES__ when these are
>> available, such as with the default -xc99=all,no_lib.
>>
>> We don't document __C99FEATURES__ as we originally intended it for
>> Solaris header file use. But there is really no reason to limit it
>> to any such use, we should document it.
>>
>> __C99FEATUES__ was introduced with Sun Studio 10, the first compiler
>> to provide full C99 support.
>>
>> Sorry, I have no list chronicling when we added each C99 language feature
>> to the Sun Studio C compilers.
>>
>> Douglas
>>
>> Chris Quenelle wrote:
>>> -------- Original Message --------
>>> Subject: [tools-compilers] #ifdef checks for inline, __func__, etc in
>>> Sun Studio?
>>> Date: Tue, 10 Jun 2008 15:40:50 -0700
>>> From: Alan Coopersmith <Alan.Coopersmith at Sun.COM>
>>> To: tools-compilers at opensolaris.org
>>>
>>> I'm working on improving Sun Studio support in one of the open-source
>>> packages we ship in OpenSolaris & Solaris.
>>>
>>> Right now it has #ifdef's such as:
>>>
>>> #if defined(__GNUC__)
>>> # define INLINE __inline__
>>> #elif defined(__MSC__)
>>> # define INLINE __inline
>>> #elif defined(_MSC_VER)
>>> # define INLINE __inline
>>> #elif defined(__ICL)
>>> # define INLINE __inline
>>> #elif defined(__INTEL_COMPILER)
>>> # define INLINE inline
>>> #elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
>>> # define INLINE __inline
>>> #else
>>> # define INLINE
>>> #endif
>>>
>>> #if defined(__VMS)
>>> # define __FUNCTION__ "VMS$NL:"
>>> #elif __STDC_VERSION__ < 199901L
>>> # if ((!defined __GNUC__) || (__GNUC__ < 2)) && (!defined __xlC__) && \
>>> (!defined(_MSC_VER) || _MSC_VER < 1300)
>>> # define __FUNCTION__ "<unknown>"
>>> # endif
>>> #endif
>>>
>>> What are the right checks for enabling inline & __func__ in Sun Studio?
>>> I would have thought checking for __STDC_VERSION__ >= 199901L would be
>>> enough, but it appears that the default value of __STDC_VERSION__ in
>>> Studio 12 is only 199901L, despite the documentation saying that
>>> -xc99=all,no_lib is default (and giving no information I could see
>>> on what that means for __STDC_VERSION__).
>>>
>>> Do I just need to add something like:
>>>
>>> #elif defined(__SUNPRO_C) && (__SUNPRO_C > 0x0550)
>>>
>>> and if so is there any list of what versions support what features
>>> without having to manually compare the last 10 versions worth of compiler
>>> docs on docs.sun.com?
>>>
>> _______________________________________________
>> tools-compilers mailing list
>> tools-compilers at opensolaris.org
>
>
