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Diffstat (limited to 'manual/install.texi')
| -rw-r--r-- | manual/install.texi | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/manual/install.texi b/manual/install.texi index e801abd8be..f6d9d92317 100644 --- a/manual/install.texi +++ b/manual/install.texi @@ -509,8 +509,14 @@ release time, GCC 9.2.1 is the newest compiler verified to work to build For PowerPC 64-bits little-endian (powerpc64le), a GCC version with support for @option{-mno-gnu-attribute}, @option{-mabi=ieeelongdouble}, and -@option{-mabi=ibmlondouble} is required. These additional features are -required for building the GNU C Library with support for IEEE long double. +@option{-mabi=ibmlondouble} is required. Likewise, the compiler must also +support passing @option{-mlong-double-128} with the preceding options. As +of release, this implies GCC 7.4 and newer (excepting GCC 7.5.0, see GCC +PR94200). These additional features are required for building the GNU C +Library with support for IEEE long double. + +@c powerpc64le performs an autoconf test to verify the compiler compiles with +@c commands like "$CC -c foo.c -mabi=ibmlongdouble -mlong-double-128". For multi-arch support it is recommended to use a GCC which has been built with support for GNU indirect functions. This ensures that correct debugging |