[bug-notifications] [gcc4g++ 0003713]: g++ is not compatible with libmpfr

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A NOTE has been added to this issue. 
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http://www.opencsw.org/mantis/view.php?id=3713 
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Reported By:                scottcurtis
Assigned To:                mwatters
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Project:                    gcc4g++
Issue ID:                   3713
Category:                   upgrade
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
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Date Submitted:             2009-06-12 18:01 CEST
Last Modified:              2009-06-18 22:44 CEST
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Summary:                    g++ is not compatible with libmpfr
Description: 
I did an upgrade to the "current" release to get the latest g++. When
compiling a function which requires g++ to load libmpfr, the compiler fails
with the message "undefined reference to __gmp_get_memory_functions". I
built and installed libmpfr version 2.4.1 and this corrected the problem.
====================================================================== 

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 (0006328) scottcurtis (reporter) - 2009-06-18 22:44
 http://www.opencsw.org/mantis/view.php?id=3713#c6328 
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The problem seems to be related to using the sqrt() from <cmath> which uses
the g++ __builtin_sqrt(). To remove WT from the picture, I created a
main.cpp with the following:

int main(int argc, char **argv)
{
    double d = __builtin_sqrtf(2.0);

    return 0;
}

If I compile this using:
g++ main.cpp

I can reproduce the problem

My OS is Solaris 10.
My libmpfr is version 2.3.1,REV=2008.01.29
My g++ is version 4.3.3,REV=2009.05.07

The libmpfr and g++ versions are what pkg-get -u installs when I get from
current.

If I download and build the latest libmpfr, then __builtin_sqrtf()
compiles successfully.