12532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar# 22532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar# Check for GNU Make. This is originally from 32532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar# http://www.gnu.org/software/ac-archive/htmldoc/check_gnu_make.html 42532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar# 52532fa21a963edf53183357edfc79a9361b44435Daniel DunbarAC_DEFUN([AC_CHECK_GNU_MAKE], 62532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar[AC_CACHE_CHECK([for GNU make],[llvm_cv_gnu_make_command], 72532fa21a963edf53183357edfc79a9361b44435Daniel Dunbardnl Search all the common names for GNU make 82532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar[llvm_cv_gnu_make_command='' 92532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar for a in "$MAKE" make gmake gnumake ; do 102532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar if test -z "$a" ; then continue ; fi ; 112532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar if ( sh -c "$a --version" 2> /dev/null | grep GNU 2>&1 > /dev/null ) 122532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar then 132532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar llvm_cv_gnu_make_command=$a ; 142532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar break; 152532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar fi 162532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar done]) 172532fa21a963edf53183357edfc79a9361b44435Daniel Dunbardnl If there was a GNU version, then set @ifGNUmake@ to the empty string, 182532fa21a963edf53183357edfc79a9361b44435Daniel Dunbardnl '#' otherwise 192532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar if test "x$llvm_cv_gnu_make_command" != "x" ; then 202532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar ifGNUmake='' ; 212532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar else 222532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar ifGNUmake='#' ; 232532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar AC_MSG_RESULT("Not found"); 242532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar fi 252532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar AC_SUBST(ifGNUmake) 262532fa21a963edf53183357edfc79a9361b44435Daniel Dunbar]) 27