------- Comment #4 from rsa at us dot ibm dot com 2009-02-05 19:28 ------- This situation is a little bit muddy.
The position of the GLIBC maintainer is that requirements of the DFP Technical Report will NEVER be added to GLIBC proper. There is indeed currently a EGLIBC branch that is hosting a 'dfp' add-on which will build a powerpc version of libdfp. Libdfp provides math.h. Ultimately libdfp will be a standalone library and math.h will be provided via a #include_next header file forwarding mechanism. When you compile your app you will indicate where the math.h is located that provides dfp prototypes: -I /usr/include/dfp/math.h /* /usr/include/dfp/math.h */ /* dfp specific additions and definitions. */ #include_next <math.h> In the meantime you can look use the eglibc dfp branch at: eglibc/dfp/sysdeps/dfp/math/math.h I hope to have a prototype standalone libdfp very soon. Unfortunately I don't have the time to do the libbid backend work to support x86. I believe there's currently a wrapper layer to allow it to be inserted into libdfp as a valid backend but someone else needs to help integrate and test that. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39031
