1dnl ###################################################################### 2dnl Expand the value of a CPP macro into a printable integer number. 3dnl Takes: header, macro, [action-if-found, [action-if-not-found]] 4dnl It runs the header through CPP looking for a match between the macro 5dnl and a string pattern, and if sucessful, it prints the string value out. 6AC_DEFUN([AMU_EXPAND_CPP_INT], 7[ 8# we are looking for a regexp of an integer (must not start with 0 --- those 9# are octals). 10AC_EGREP_CPP( 11[[1-9]][[0-9]]*, 12[$1] 13$2, 14value="notfound" 15AC_TRY_RUN( 16[ 17[$1] 18main(argc) 19int argc; 20{ 21#ifdef $2 22if (argc > 1) 23 printf("%d", $2); 24exit(0); 25#else 26# error no such option $2 27#endif 28exit(1); 29}], value=`./conftest dummy 2>>config.log`, value="notfound", value="notfound") 30, 31value="notfound" 32) 33if test "$value" = notfound 34then 35 : 36 $4 37else 38 : 39 $3 40fi 41]) 42dnl ====================================================================== 43