diff options
| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /config/dfp.m4 | |
| download | cbb-gcc-4.6.4-upstream.tar.bz2 cbb-gcc-4.6.4-upstream.tar.xz | |
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.
downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.
if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
Diffstat (limited to 'config/dfp.m4')
| -rw-r--r-- | config/dfp.m4 | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/config/dfp.m4 b/config/dfp.m4 new file mode 100644 index 000000000..cc778b19b --- /dev/null +++ b/config/dfp.m4 @@ -0,0 +1,56 @@ +dnl @synopsis GCC_AC_ENABLE_DECIMAL_FLOAT([target triplet]) +dnl +dnl Enable C extension for decimal float if target supports it. +dnl +dnl @author Andreas Krebbel <Andreas.Krebbel@de.ibm.com> + +AC_DEFUN([GCC_AC_ENABLE_DECIMAL_FLOAT], +[ +AC_ARG_ENABLE(decimal-float, +[ --enable-decimal-float={no,yes,bid,dpd} + enable decimal float extension to C. Selecting 'bid' + or 'dpd' choses which decimal floating point format + to use], +[ + case $enable_decimal_float in + yes | no | bid | dpd) default_decimal_float=$enable_decimal_float ;; + *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float. +Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;; + esac +], +[ + case $1 in + powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \ + i?86*-*-mingw* | x86_64*-*-mingw* | \ + i?86*-*-cygwin*) + enable_decimal_float=yes + ;; + *) + AC_MSG_WARN([decimal float is not supported for this target, ignored]) + enable_decimal_float=no + ;; + esac +]) + +# x86's use BID format instead of DPD +case x$enable_decimal_float in + xyes) + case $1 in + i?86*-*-* | x86_64*-*-*) + enable_decimal_float=bid + ;; + *) + enable_decimal_float=dpd + ;; + esac + default_decimal_float=$enable_decimal_float + ;; + xno) + # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper + # dependency on libdecnumber. + default_decimal_float=dpd + ;; +esac +AC_SUBST(enable_decimal_float) + +]) |