_Decimal128 unsupported in gcc?

[jstrodtb]

I am trying to use pveclib with gcc14 on Power10 and Rocky . I get this error:

vec_common_ppc.h:429:3: error: ‘_Decimal128’ does not name a type
429 | _Decimal128 dpd128;

This datatype should be supported in gcc, but even a toy code returns an error when I try to create this type. Any ideas what I might be doing wrong?

[munroesj52]

That is weird. This old code (back to POWER6!).

#ifndef PVECLIB_DISABLE_DFP
/*! \brief 128 bit Decimal Float from pair of double float registers. */
_Decimal128 dpd128;
#endif

The code is guarded with PVECLIB_DISABLE_DFP which implies it passed the config test ./testprograms/test_ppc_DFP.c and PVECLIB_DISABLE_DFP is not defined on the compile.

Please try compiling just ./testprograms/test_ppc_DFP.c and report back.

[munroesj52]

The gcc-14 install Ubuntu 24.04 LTS works for me on P10.

[munroesj52]

I need more info, GCC -v output, configure options used for pveclib, and configure text output?

[munroesj52]

problem solved or?