On Solaris 8, if I use a perl5.7.2+ compiled with gcc with all the default
options, and then use that perl to try to build parrot with all its
defaults, I get a fatal error:
gcc -I/usr/local/include -I/opt/gnu/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
-Wall -ansi -pedantic -Wstrict-prototypes -Wmissing-prototypes -Winline -Wshadow
-Wpointer-arith -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion
-Waggregate-return -Winline -W -Wsign-compare -Wno-unused -I./include -o test_main.o
-c test_main.c
test_main.c: In function `main':
test_main.c:211: incompatible types in assignment
test_main.c:219: cast to union type from type not present in union
test_main.c:219: warning: cast increases required alignment of target type
test_main.c:230: warning: passing arg 4 of `PackFile_unpack' as unsigned due to
prototype
test_main.c:249: warning: declaration of `time' shadows global declaration
*** Error code 1
make: Fatal error: Command failed for target `test_main.o'
The problem appears to be the off_t typdef. Since perl5's Configure
gave me -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64, off_t is typdef'd
as a union involving long long.
typedef union {
double _d;
int _l[2];
} __longlong_t;
typedef __longlong_t off_t;
This doesn't work under -ansi -pedantic.
I think the optimal fix here is simply to remove -ansi -pedantic.
-ansi may well have some uses, but even the gcc man pages say
"There is no reason to use this option [-pedantic]; it exists only
to satisfy pedants."
--- parrot/Configure.pl Tue Jan 15 10:08:15 2002
+++ parrot-andy/Configure.pl Tue Jan 15 12:33:06 2002
@@ -391,9 +391,14 @@
# out that you're using 2.7.2 and -Wfoo isn't recognised there, move it up
# into the next version becone (2.8)
-
+ # Don't use -ansi -pedantic. It makes it much harder to compile
+ # using the system headers, which may well be tuned to a
+ # non-strict environment -- especially since we are using perl5
+ # compilation flags determined in a non-strict environment.
+ # An example is Solaris 8.
+
my @opt_and_vers =
- (0 => "-Wall -ansi -pedantic -Wstrict-prototypes -Wmissing-prototypes
-Winline -Wshadow -Wpointer-arith -Wcast-qual -Wcast-align -Wwrite-strings
-Wconversion -Waggregate-return -Winline -W -Wsign-compare -Wno-unused",
+ (0 => "-Wall -Wstrict-prototypes -Wmissing-prototypes -Winline -Wshadow
+-Wpointer-arith -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion
+-Waggregate-return -Winline -W -Wsign-compare -Wno-unused",
# others; ones we might like marked with ?
# ? -Wundef for undefined idenfiers in #if
# ? -Wbad-function-cast
--
Andy Dougherty [EMAIL PROTECTED]
Dept. of Physics
Lafayette College, Easton PA 18042
