| 1 |
Hi devs, |
| 2 |
|
| 3 |
I'm playing around with the ccc/cxx and found some interesting things. |
| 4 |
|
| 5 |
Can someone of you comment why the following patch is needed? |
| 6 |
|
| 7 |
diff -ruN glibc-2.3.2.orig/include/features.h |
| 8 |
glibc-2.3.2/include/features.h--- glibc-2.3.2.orig/include/features.h |
| 9 |
2003-06-14 00:28:23.000000000 +0100+++ glibc-2.3.2/include/features.h |
| 10 |
2003-06-14 00:58:57.000000000 +0100@@ -285,7 +285,8 @@ |
| 11 |
#if defined __GNUC__ \ |
| 12 |
|| (defined __PGI && defined __i386__ ) \ |
| 13 |
|| (defined __INTEL_COMPILER && (defined __i386__ || defined __ia64__))\ |
| 14 |
- || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L) |
| 15 |
+ || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)\ |
| 16 |
+ &&!(defined(__DECC) || defined(__DECCXX)) |
| 17 |
# define__GLIBC_HAVE_LONG_LONG 1 |
| 18 |
#endif |
| 19 |
|
| 20 |
The Compaq C Compiler knows the "long long" datatype like gcc does. It's |
| 21 |
also of the same size on both compilers |
| 22 |
(long == long int == long long == 8bytes). |
| 23 |
|
| 24 |
This breaks the compilation (with ccc) of some packages. |
| 25 |
|
| 26 |
Comments? |
| 27 |
|
| 28 |
|
| 29 |
Another thing is the following...: |
| 30 |
|
| 31 |
printf '%s %s %s\n' \ |
| 32 |
"-L${gcc_libs_path}" \ |
| 33 |
" -SysIncDir |
| 34 |
/usr/lib/compaq/ccc-${ccc_release}/alpha-linux/include" \ |
| 35 |
" -SysIncDir /usr/include/linux" \ > |
| 36 |
usr/lib/compaq/ccc-${ccc_release}/alpha-linux/bin/comp.config |
| 37 |
|
| 38 |
..declared in the ccc ebuild. That's a big problem. I needed a lot of |
| 39 |
time to figure out, why ccc could not compile files which had declared |
| 40 |
INT_MAX or something like that. (@see <limits.h>) |
| 41 |
|
| 42 |
The standard include path and the ccc include path must be declared |
| 43 |
BEFORE gcc's include paths in comp.config, otherwise the INT_MAX & Co |
| 44 |
Macros expands to __INT_MAX__ because the #include_next directives. |
| 45 |
__INT_MAX__ is a predefined gcc thing. |
| 46 |
|
| 47 |
Thank you for the time. Please mail me to discuss these. |
| 48 |
|
| 49 |
greets |
| 50 |
|
| 51 |
Marc |
| 52 |
|
| 53 |
-- |
| 54 |
gentoo-alpha@g.o mailing list |
Archives