commit 2ff20c93a5ec753a0c46ca5ecd991b8e2020f7d0 Author: Nick Mathewson nickm@torproject.org Date: Mon May 30 12:28:55 2016 -0400
Add -Wunused-const-variable=2 on GCC >=6.1
This caused a trivial warning in curve25519-donna-64bit.h, which had two unused constants. I commented them out. --- configure.ac | 1 + src/ext/ed25519/donna/curve25519-donna-64bit.h | 4 ++-- 2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/configure.ac b/configure.ac index d9149e2..f66d798 100644 --- a/configure.ac +++ b/configure.ac @@ -1778,6 +1778,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ CFLAGS="$CFLAGS -Wignored-attributes -Wshift-negative-value -Wshift-overflow=2" CFLAGS="$CFLAGS -Wnull-dereference" CFLAGS="$CFLAGS -Wduplicated-cond" + CFLAGS="$CFLAGS -Wunused-const-variable=2" fi
if test "x$have_shorten64_flag" = "xyes"; then diff --git a/src/ext/ed25519/donna/curve25519-donna-64bit.h b/src/ext/ed25519/donna/curve25519-donna-64bit.h index 2941d1b..50c9916 100644 --- a/src/ext/ed25519/donna/curve25519-donna-64bit.h +++ b/src/ext/ed25519/donna/curve25519-donna-64bit.h @@ -8,9 +8,9 @@
typedef uint64_t bignum25519[5];
-static const uint64_t reduce_mask_40 = ((uint64_t)1 << 40) - 1; +//static const uint64_t reduce_mask_40 = ((uint64_t)1 << 40) - 1; static const uint64_t reduce_mask_51 = ((uint64_t)1 << 51) - 1; -static const uint64_t reduce_mask_56 = ((uint64_t)1 << 56) - 1; +//static const uint64_t reduce_mask_56 = ((uint64_t)1 << 56) - 1;
/* out = in */ DONNA_INLINE static void