On 24-8-2016 15:23, Dimitry Andric wrote:
> On 24 Aug 2016, at 12:14, Willem Jan Withagen <w...@digiware.nl> wrote:
>>
>> While compile Ceph source code I run into this conflict of the usuage of
>> 'log'
>>
>> Now I've fixed it by prefixing the log with ::log on line 845.
>> Which works for me, but I'm pretty sure that that is not the best solution.
> ...
>>
>> In file included from /usr/include/c++/v1/cmath:301:
>> /usr/include/c++/v1/math.h:845:37: error: reference to 'log' is ambiguous
>> log(_A1 __lcpp_x) _NOEXCEPT {return log((double)__lcpp_x);}
>
> Can you show the full command line used to build the offending source
> file? Usually this is caused by an incorrect include directory search
> order. And most often, that is caused by build systems inserting
> -isystem into compile command lines.
Hi Dimitry,
This is the full output of the failing compile
--WjW
[ 3%] Building CXX object
src/CMakeFiles/common.dir/common/perf_counters.cc.o
cd /home/wjw/ceph/build/src && /usr/bin/CC
-DCEPH_LIBDIR=\"/usr/local/lib\"
-DCEPH_PKGLIBDIR=\"/usr/local/lib/ceph\"
-I/home/wjw/ceph/build/src/include -I/home/wjw/ceph/src
-I/usr/local/include -I/home/wjw/ceph/build/include
-I/home/wjw/ceph/src/xxHash -Wall -Wtype-limits -Wignored-qualifiers
-Winit-self -Wpointer-arith -Werror=format-security -fno-strict-aliasing
-fsigned-char -Wno-inconsistent-missing-override -Wno-mismatched-tags
-Wno-unused-function -Wno-unused-local-typedef
-Wno-inconsistent-missing-override -Wno-unused-private-field
-Wno-varargs -Wno-gnu-designator -Wno-mismatched-tags
-Wno-missing-braces -Wno-parentheses -Wno-deprecated-register
-ftemplate-depth-1024 -Wno-invalid-offsetof -Wnon-virtual-dtor
-Wno-overloaded-virtual -fdiagnostics-color=auto
-I/usr/local/include/nss/nss -I/usr/local/include/nspr
-fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc
-fno-builtin-free -O0 -g -fPIC -DHAVE_CONFIG_H -D__CEPH__ -D_REENTRANT
-D_THREAD_SAFE -D__STDC_FORMAT_MACROS -std=c++11 -o
CMakeFiles/common.dir/common/perf_counters.cc.o -c
/home/wjw/ceph/src/common/perf_counters.cc
In file included from /home/wjw/ceph/src/common/perf_counters.cc:17:
In file included from /home/wjw/ceph/src/common/perf_counters.h:21:
In file included from /home/wjw/ceph/src/include/utime.h:18:
/usr/include/c++/v1/math.h:845:37: error: reference to 'log' is ambiguous
log(_A1 __lcpp_x) _NOEXCEPT {return log((double)__lcpp_x);}
^
/usr/include/c++/v1/math.h:845:1: note: candidate found by name lookup
is 'log'
log(_A1 __lcpp_x) _NOEXCEPT {return log((double)__lcpp_x);}
^
/usr/include/c++/v1/math.h:839:46: note: candidate found by name lookup
is 'log'
inline _LIBCPP_INLINE_VISIBILITY long double log(long double __lcpp_x)
_NOEXCEPT {return logl(__lcpp_x);}
^
/usr/include/c++/v1/math.h:838:46: note: candidate found by name lookup
is 'log'
inline _LIBCPP_INLINE_VISIBILITY float log(float __lcpp_x)
_NOEXCEPT {return logf(__lcpp_x);}
^
/usr/include/math.h:247:8: note: candidate found by name lookup is 'log'
double log(double);
^
/home/wjw/ceph/src/common/ceph_context.h:44:13: note: candidate found by
name lookup is 'ceph::log'
namespace log {
^
1 error generated.
gmake[2]: *** [src/CMakeFiles/common.dir/build.make:208:
src/CMakeFiles/common.dir/common/perf_counters.cc.o] Error 1
gmake[2]: Leaving directory '/usr/srcs/Ceph/work/ceph/build'
gmake[1]: *** [CMakeFiles/Makefile2:380: src/CMakeFiles/common.dir/all]
Error 2
gmake[1]: Leaving directory '/usr/srcs/Ceph/work/ceph/build'
gmake: *** [Makefile:139: all] Error 2
235.883u 5.236s 4:01.13 99.9% 129523+964k 642+267342io 8646pf+0w
Exit 2
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