m4/fp_find_nm.m4

   1 # FP_FIND_NM
   2 # ---------------------
   3 # Find nm and verify that it works.
   4 AC_DEFUN([FP_FIND_NM],
   5 [
   6     if test "$HostOS" != "mingw32"; then
   7         AC_CHECK_TARGET_TOOL([NM], [nm])
   8         if test "$NM" = ":"; then
   9             AC_MSG_ERROR([cannot find nm in your PATH])
  10         fi
  11     fi
  12     if test "$HostOS" = "mingw32"
  13     then
  14       NmCmd=$(cygpath -m "$NM")
  15     else
  16       NmCmd="$NM"
  17     fi
  18     AC_SUBST([NmCmd])
  19
  20     if test "$TargetOS_CPP" = "darwin"
  21     then
  22         AC_MSG_CHECKING(whether nm program is broken)
  23         # Some versions of Xcode ship a broken version of `nm`. Detect and work
  24         # around this issue. See : https://gitlab.haskell.org/ghc/ghc/issues/11744
  25         nmver=$(${NM} --version | grep version | sed 's/ //g')
  26         case "$nmver" in
  27             LLVMversion7.3.0|LLVMversion7.3.1)
  28                 AC_MSG_RESULT(yes)
  29                 echo "The detected nm program is broken."
  30                 echo
  31                 echo "See: https://gitlab.haskell.org/ghc/ghc/issues/11744"
  32                 echo
  33                 echo "Try re-running configure with:"
  34                 echo
  35                 echo '   NM=$(xcrun --find nm-classic) ./configure'
  36                 echo
  37                 exit 1
  38                 ;;
  39             *)
  40                 AC_MSG_RESULT(no)
  41                 ;;
  42             esac
  43     fi
  44 ])