1*a53f50b9Schristosdnl ###################################################################### 2*a53f50b9Schristosdnl check if a filesystem exists (if any of its header files exist). 3*a53f50b9Schristosdnl Usage: AC_CHECK_FS_HEADERS(<headers>..., <fs>, [<fssymbol>]) 4*a53f50b9Schristosdnl Check if any of the headers <headers> exist. If any exist, then 5*a53f50b9Schristosdnl define HAVE_FS_<fs>. If <fssymbol> exits, then define 6*a53f50b9Schristosdnl HAVE_FS_<fssymbol> instead... 7*a53f50b9SchristosAC_DEFUN([AMU_CHECK_FS_HEADERS], 8*a53f50b9Schristos[ 9*a53f50b9Schristos# find what name to give to the fs 10*a53f50b9Schristosif test -n "$3" 11*a53f50b9Schristosthen 12*a53f50b9Schristos ac_fs_name=$3 13*a53f50b9Schristoselse 14*a53f50b9Schristos ac_fs_name=$2 15*a53f50b9Schristosfi 16*a53f50b9Schristos# store variable name of fs 17*a53f50b9Schristosac_upcase_fs_name=`echo $2 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 18*a53f50b9Schristosac_fs_headers_safe=HAVE_FS_$ac_upcase_fs_name 19*a53f50b9Schristos# check for cache and set it if needed 20*a53f50b9SchristosAMU_CACHE_CHECK_DYNAMIC(for $ac_fs_name filesystem in <$1>, 21*a53f50b9Schristosac_cv_fs_header_$ac_fs_name, 22*a53f50b9Schristos[ 23*a53f50b9Schristos# define to "no" by default 24*a53f50b9Schristoseval "ac_cv_fs_header_$ac_fs_name=no" 25*a53f50b9Schristos# and look to see if it was found 26*a53f50b9SchristosAC_CHECK_HEADERS($1, 27*a53f50b9Schristos[ eval "ac_cv_fs_header_$ac_fs_name=yes" 28*a53f50b9Schristos break 29*a53f50b9Schristos])]) 30*a53f50b9Schristos# check if need to define variable 31*a53f50b9Schristosif test "`eval echo '$''{ac_cv_fs_header_'$ac_fs_name'}'`" = yes 32*a53f50b9Schristosthen 33*a53f50b9Schristos AC_DEFINE_UNQUOTED($ac_fs_headers_safe) 34*a53f50b9Schristos# append ops_<fs>.o object to AMD_FS_OBJS for automatic compilation 35*a53f50b9Schristos# if first time we add something to this list, then also tell autoconf 36*a53f50b9Schristos# to replace instances of it in Makefiles. 37*a53f50b9Schristos if test -z "$AMD_FS_OBJS" 38*a53f50b9Schristos then 39*a53f50b9Schristos AMD_FS_OBJS="ops_${ac_fs_name}.o" 40*a53f50b9Schristos AC_SUBST(AMD_FS_OBJS) 41*a53f50b9Schristos else 42*a53f50b9Schristos # since this object file could have already been added before 43*a53f50b9Schristos # we need to ensure we do not add it twice. 44*a53f50b9Schristos case "${AMD_FS_OBJS}" in 45*a53f50b9Schristos *ops_${ac_fs_name}.o* ) ;; 46*a53f50b9Schristos * ) 47*a53f50b9Schristos AMD_FS_OBJS="$AMD_FS_OBJS ops_${ac_fs_name}.o" 48*a53f50b9Schristos ;; 49*a53f50b9Schristos esac 50*a53f50b9Schristos fi 51*a53f50b9Schristosfi 52*a53f50b9Schristos]) 53*a53f50b9Schristosdnl ====================================================================== 54