Set SIGNAL_HANDLERS_CAN_USE_SCHEME_STACK under MacOS.

diff --git a/src/microcode/achost.ac b/src/microcode/achost.ac
index e4fc6b51726430e2917aee39f00229f252d72b0d..3e82b52f8d0d2457a0ec2f4ed77803b603be5829 100644 (file)
--- a/src/microcode/achost.ac
+++ b/src/microcode/achost.ac
@@ -149,6 +149,7 @@ darwin*)
     fi
     MACOSX_CFLAGS="${MACOSX_CFLAGS} -isysroot ${MACOSX_SYSROOT}"
     MACOSX_CFLAGS="${MACOSX_CFLAGS} -fconstant-cfstrings"
+    MACOSX_CFLAGS="${MACOSX_CFLAGS} -DSIGNAL_HANDLERS_CAN_USE_SCHEME_STACK"
     AC_MSG_NOTICE([Compiling for MacOSX version ${MACOSX}])
     case ${mit_scheme_native_code} in
     i386)