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# FP_PROG_AR_ARGS
# ---------------
# Sets fp_prog_ar_args to the arguments for ar and the output variable ArCmd
# to an invocation of ar including these arguments.
AC_DEFUN([FP_PROG_AR_ARGS],
[AC_REQUIRE([FP_PROG_AR_IS_GNU])
AC_CACHE_CHECK([for ar arguments], [fp_cv_prog_ar_args],
[
# GNU ar needs special treatment: it appears to have problems with
# object files with the same name if you use the 's' modifier, but
# simple 'ar q' works fine, and doesn't need a separate ranlib.
if test $fp_prog_ar_is_gnu = yes; then
fp_cv_prog_ar_args="q"
else
touch conftest.dummy
for fp_var in qclsZ qcls qcs qcl qc ; do
rm -f conftest.a
if "$fp_prog_ar" $fp_var conftest.a conftest.dummy > /dev/null 2> /dev/null ; then
# Also check that a result was created; it seems some llvm-ar versions
# exit with code zero even if they fail to parse the command line.
if test -f conftest.a ; then
fp_cv_prog_ar_args=$fp_var
break
fi
fi
done
rm -f conftest*
if test -z "$fp_cv_prog_ar_args"; then
AC_MSG_ERROR([cannot figure out how to use your $fp_prog_ar])
fi
fi])
fp_prog_ar_args=$fp_cv_prog_ar_args
AC_SUBST([ArCmd], ["$fp_prog_ar"])
AC_SUBST([ArArgs], ["$fp_prog_ar_args"])
])# FP_PROG_AR_ARGS
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