Hi, If I'm using cygwin, with the -mno-cygwin gcc/g++ compiler option, then mingw is used. It seems that mingw uses a \r\n for a newline. AC_CHECK_SIZEOF does these two things on cygwin with autoconf 2.60. fprintf(f, "%d\n", sizeof($1)); which prints "4\r\n" if the size is 4 and then AC_CV_NAME=`cat conftestval`, ... now cygwin's cat doesn't understand \r\n, so ac_cv_sizeof_int=`cat conftestval` results in "4\r", which breaks the configure.in scripts that check with if statements for "$ac_cv_sizeof_int" = "4". What is the best way to resolve something like this? Thanks, Bob Rossi _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf