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-rw-r--r--INSTALL8
1 files changed, 5 insertions, 3 deletions
diff --git a/INSTALL b/INSTALL
index 4bf4bd0..b7676d1 100644
--- a/INSTALL
+++ b/INSTALL
@@ -469,9 +469,11 @@ build the GNU C Library:
For PowerPC 64-bits little-endian (powerpc64le), a GCC version with
support for '-mno-gnu-attribute', '-mabi=ieeelongdouble', and
- '-mabi=ibmlondouble' is required. These additional features are
- required for building the GNU C Library with support for IEEE long
- double.
+ '-mabi=ibmlondouble' is required. Likewise, the compiler must also
+ support passing '-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.
For multi-arch support it is recommended to use a GCC which has
been built with support for GNU indirect functions. This ensures