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# FP_MUSTTAIL
# ----------------------------------
# Is the musttail attribute supported?
AC_DEFUN([FP_MUSTTAIL],
[
AC_MSG_CHECKING([whether __attribute__((musttail)) is supported])
echo 'extern int foo(void); int bar(void) { __attribute__((musttail)) return foo(); }' > conftest.c
if $CC -c conftest.c -o conftest.o > /dev/null 2>&1
then
AC_MSG_RESULT([yes])
AC_DEFINE(HAS_MUSTTAIL, 1, [Has musttail])
else
AC_MSG_RESULT([no])
fi
rm -f conftest.c conftest.o
])
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