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# FP_FIND_NM
# ---------------------
# Find nm and verify that it works.
AC_DEFUN([FP_FIND_NM],
[
if test "$HostOS" != "mingw32"; then
AC_CHECK_TARGET_TOOL([NM], [nm])
if test "$NM" = ":"; then
AC_MSG_ERROR([cannot find nm in your PATH])
fi
fi
NmCmd="$NM"
AC_SUBST([NmCmd])
if test "$TargetOS_CPP" = "darwin"
then
AC_MSG_CHECKING(whether nm program is broken)
# Some versions of Xcode ship a broken version of `nm`. Detect and work
# around this issue. See : https://gitlab.haskell.org/ghc/ghc/issues/11744
nmver=$(${NM} --version | grep version | sed 's/ //g')
case "$nmver" in
LLVMversion7.3.0|LLVMversion7.3.1)
AC_MSG_RESULT(yes)
echo "The detected nm program is broken."
echo
echo "See: https://gitlab.haskell.org/ghc/ghc/issues/11744"
echo
echo "Try re-running configure with:"
echo
echo ' NM=$(xcrun --find nm-classic) ./configure'
echo
exit 1
;;
*)
AC_MSG_RESULT(no)
;;
esac
fi
])
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