diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/install.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 021c347..a38ca3e 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -2270,6 +2270,16 @@ information in object. The option is disabled by default. It is enabled on RISC-V/ELF (bare-metal) target if target binutils supported. + +@item --enable-s390-excess-float-precision +@itemx --disable-s390-excess-float-precision +On s390(x) targets, enable treatment of float expressions with double precision +when in standards-compliant mode (e.g., when @code{--std=c99} or +@code{-fexcess-precision=standard} are given). + +For a native build, the option's default is derived from glibc's behavior. When +glibc clamps float_t to double, gcc follows and enables the option. In all other +cases, it defaults to off. @end table @subheading Cross-Compiler-Specific Options |