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authorPieter Wuille <pieter@wuille.net>2021-07-14 10:02:02 -0700
committerPieter Wuille <pieter@wuille.net>2021-07-14 14:43:45 -0700
commite4ffb44716bb7a7b9f0a5d70ac07058632234370 (patch)
treeb658b1afefbcbe30b42d819c59dd5172f64dc79b /src/secp256k1/build-aux
parent531c2b7c04898f5a2097f44e8c12bfb2f53aaf9b (diff)
parentc020cbaa5c8e9e61b2b8efd8dc09be743fcd4273 (diff)
Update secp256k1 subtree to latest upstream + adapt API
The new schnorrsig API requires changing a few arguments.
Diffstat (limited to 'src/secp256k1/build-aux')
-rw-r--r--src/secp256k1/build-aux/m4/bitcoin_secp.m416
1 files changed, 16 insertions, 0 deletions
diff --git a/src/secp256k1/build-aux/m4/bitcoin_secp.m4 b/src/secp256k1/build-aux/m4/bitcoin_secp.m4
index e57888ca18..8245b2b863 100644
--- a/src/secp256k1/build-aux/m4/bitcoin_secp.m4
+++ b/src/secp256k1/build-aux/m4/bitcoin_secp.m4
@@ -82,3 +82,19 @@ if test x"$has_valgrind" != x"yes"; then
AC_CHECK_HEADER([valgrind/memcheck.h], [has_valgrind=yes; AC_DEFINE(HAVE_VALGRIND,1,[Define this symbol if valgrind is installed])])
fi
])
+
+dnl SECP_TRY_APPEND_CFLAGS(flags, VAR)
+dnl Append flags to VAR if CC accepts them.
+AC_DEFUN([SECP_TRY_APPEND_CFLAGS], [
+ AC_MSG_CHECKING([if ${CC} supports $1])
+ SECP_TRY_APPEND_CFLAGS_saved_CFLAGS="$CFLAGS"
+ CFLAGS="$1 $CFLAGS"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])], [flag_works=yes], [flag_works=no])
+ AC_MSG_RESULT($flag_works)
+ CFLAGS="$SECP_TRY_APPEND_CFLAGS_saved_CFLAGS"
+ if test x"$flag_works" = x"yes"; then
+ $2="$$2 $1"
+ fi
+ unset flag_works
+ AC_SUBST($2)
+])