dnl Arguments: dnl $1 -- Library to look for dnl $2 -- Function to check in the library dnl $3 -- Any additional libraries that might be needed dnl $4 -- Action to be taken when test succeeds dnl $5 -- Action to be taken when test fails dnl $6 -- Directories where the library may reside AC_DEFUN([MU_CHECK_LIB], [m4_ifval([$4], , [AH_CHECK_LIB([$1])])dnl AS_VAR_PUSHDEF([mu_Lib], [mu_cv_lib_$1])dnl AC_CACHE_CHECK([for $2 in -l$1], [mu_Lib], [AS_VAR_SET([mu_Lib], [no]) mu_check_lib_save_LIBS=$LIBS for path in "" $6 do if test -n "$path"; then mu_ldflags="-L$path -l$1 $3" else mu_ldflags="-l$1 $3" fi LIBS="$mu_ldflags $mu_check_lib_save_LIBS" AC_LINK_IFELSE([AC_LANG_CALL([], [$2])], [AS_VAR_SET([mu_Lib], ["$mu_ldflags"]) break]) done LIBS=$mu_check_lib_save_LIBS]) AS_IF([test "AS_VAR_GET([mu_Lib])" != no], [m4_default([$4], [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$1)) LIBS="-l$1 $LIBS" ])], [$5])dnl AS_VAR_POPDEF([mu_Lib])dnl ])# MU_CHECK_LIB