Hello,
I am trying to compile sage-4.1.1 from source on a Gentoo Linux x86_64
system with the experimental gcc-4.5.0.
There are two issues, which are really the same problem.
*** FIRST ISSUE ***
gcc -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes
-fPIC -I/usr/local/src/sage-4.1.1/local/include/fplll
-I/usr/local/src/sage-4.1.1/local//include
-I/usr/local/src/sage-4.1.1/local//include/csage
-I/usr/local/src/sage-4.1.1/devel//sage/sage/ext
-I/usr/local/src/sage-4.1.1/local/include/python2.6 -c
sage/libs/fplll/fplll.cpp -o build/temp.linux-x86_64-2.6/sage/libs/fplll/fplll.o
cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
Ada/C/ObjC but not for C++
In file included from
/usr/local/src/sage-4.1.1/local//include/fplll/defs.h:36:0,
from /usr/local/src/sage-4.1.1/local//include/fplll/util.h:29,
from /usr/local/src/sage-4.1.1/local//include/fplll/fplll.h:33,
from sage/libs/fplll/fplll.cpp:140:
/usr/local/src/sage-4.1.1/local//include/fplll/dpe.h:74:20: error: new
declaration 'double round(double)'
/usr/include/bits/mathcalls.h:310:1: error: ambiguates old declaration 'double
round(double)'
/usr/local/src/sage-4.1.1/local//include/fplll/dpe.h:77:20: error: new
declaration 'double trunc(double)'
/usr/include/bits/mathcalls.h:314:1: error: ambiguates old declaration 'double
trunc(double)'
sage/libs/fplll/fplll.cpp:1959:65: warning:
'__pyx_doc_4sage_4libs_5fplll_5fplll_6FP_LLL___new__' defined but not used
sage/libs/fplll/fplll.cpp:2088:69: warning:
'__pyx_doc_4sage_4libs_5fplll_5fplll_6FP_LLL___dealloc__' defined but not used
error: command 'gcc' failed with exit status 1
sage: There was an error installing modified sage library code.
This is not surprising, since local/include/fplll/dpe.h contains
#ifndef round
double round(double);
#endif
#ifndef trunc
double trunc(double);
#endif
While /usr/include/bits/mathcalls.h declares round() as (using some macros):
extern double round (double __x) throw () __attribute__ ((__const__));
*** SECOND ISSUE ***
The second issue is that PARI/GP does not compile with g++-4.5.0.
This has been fixed in the SVN version of PARI, I attach a backported
patch for the version of PARI which sage uses. For more info, see
http://pari.math.u-bordeaux.fr/archives/pari-dev-0909/msg00046.html
Cheers,
Jeroen.
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Only in sage-pari-new/src/config: has_alarm.c
diff -u --recursive sage-pari-org/src/config/has_exp2.c sage-pari-new/src/config/has_exp2.c
--- sage-pari-org/src/config/has_exp2.c 2004-05-06 00:51:18.000000000 +0200
+++ sage-pari-new/src/config/has_exp2.c 2009-09-16 14:18:48.000000000 +0200
@@ -1,3 +1,3 @@
#include <math.h>
-char (*f)() = exp2;
+double (*f)(double) = exp2;
int main(){ return f != exp2; }
diff -u --recursive sage-pari-org/src/config/has_log2.c sage-pari-new/src/config/has_log2.c
--- sage-pari-org/src/config/has_log2.c 2004-05-06 00:51:18.000000000 +0200
+++ sage-pari-new/src/config/has_log2.c 2009-09-16 14:18:50.000000000 +0200
@@ -1,3 +1,3 @@
#include <math.h>
-char (*f)() = log2;
+double (*f)(double) = log2;
int main(){ return f != log2; }
Only in sage-pari-new/src/config: has_setsid.c
diff -u --recursive sage-pari-org/src/src/headers/paricom.h sage-pari-new/src/src/headers/paricom.h
--- sage-pari-org/src/src/headers/paricom.h 2006-09-09 23:39:28.000000000 +0200
+++ sage-pari-new/src/src/headers/paricom.h 2009-09-16 14:19:40.000000000 +0200
@@ -131,19 +131,11 @@
#ifndef HAS_EXP2
# undef exp2
-# ifdef __cplusplus
- inline double exp2(double x) {return exp(x*LOG2);}
-# else
-# define exp2(x) (exp((double)(x)*LOG2))
-# endif
+# define exp2(x) (exp((double)(x)*LOG2))
#endif
#ifndef HAS_LOG2
# undef log2
-# ifdef __cplusplus
- inline double log2(double x) {return log(x)/LOG2;}
-# else
-# define log2(x) (log((double)(x))/LOG2)
-# endif
+# define log2(x) (log((double)(x))/LOG2)
#endif
#ifdef min
