124 lines
3.9 KiB
Plaintext
124 lines
3.9 KiB
Plaintext
dnl ######################################################################
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dnl FIXED VERSION OF AUTOCONF 2.59 AC_CHECK_MEMBER. g/cc will fail to check
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dnl a member if the .member is itself a data structure, because you cannot
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dnl compare, in C, a data structure against NULL; you can compare a native
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dnl data type (int, char) or a pointer. Solution: do what I did in my
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dnl original member checking macro: try to take the address of the member.
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dnl You can always take the address of anything.
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dnl -Erez Zadok, Feb 19, 2005.
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dnl
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# AC_CHECK_MEMBER2(AGGREGATE.MEMBER,
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# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
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# [INCLUDES])
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# ---------------------------------------------------------
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# AGGREGATE.MEMBER is for instance `struct passwd.pw_gecos', shell
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# variables are not a valid argument.
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AC_DEFUN([AC_CHECK_MEMBER2],
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[AS_LITERAL_IF([$1], [],
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[AC_FATAL([$0: requires literal arguments])])dnl
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m4_bmatch([$1], [\.], ,
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[m4_fatal([$0: Did not see any dot in `$1'])])dnl
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AS_VAR_PUSHDEF([ac_Member], [ac_cv_member_$1])dnl
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dnl Extract the aggregate name, and the member name
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AC_CACHE_CHECK([for $1], ac_Member,
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])],
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[dnl AGGREGATE ac_aggr;
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static m4_bpatsubst([$1], [\..*]) ac_aggr;
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dnl ac_aggr.MEMBER;
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if (&(ac_aggr.m4_bpatsubst([$1], [^[^.]*\.])))
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return 0;])],
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[AS_VAR_SET(ac_Member, yes)],
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])],
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[dnl AGGREGATE ac_aggr;
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static m4_bpatsubst([$1], [\..*]) ac_aggr;
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dnl sizeof ac_aggr.MEMBER;
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if (sizeof ac_aggr.m4_bpatsubst([$1], [^[^.]*\.]))
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return 0;])],
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[AS_VAR_SET(ac_Member, yes)],
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[AS_VAR_SET(ac_Member, no)])])])
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AS_IF([test AS_VAR_GET(ac_Member) = yes], [$2], [$3])dnl
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AS_VAR_POPDEF([ac_Member])dnl
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])# AC_CHECK_MEMBER
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# AC_CHECK_MEMBERS2([AGGREGATE.MEMBER, ...],
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# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]
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# [INCLUDES])
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# ---------------------------------------------------------
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# The first argument is an m4 list.
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AC_DEFUN([AC_CHECK_MEMBERS2],
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[m4_foreach([AC_Member], [$1],
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[AC_CHECK_MEMBER2(AC_Member,
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[AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_[]AC_Member), 1,
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[Define to 1 if `]m4_bpatsubst(AC_Member,
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[^[^.]*\.])[' is
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member of `]m4_bpatsubst(AC_Member, [\..*])['.])
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$2],
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[$3],
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[$4])])])
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dnl ######################################################################
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dnl find if structure $1 has field field $2
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AC_DEFUN([AMU_CHECK_FIELD],
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[
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AC_CHECK_MEMBERS2($1, , ,[
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AMU_MOUNT_HEADERS(
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[
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/* now set the typedef */
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#ifdef HAVE_STRUCT_MNTENT
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typedef struct mntent mntent_t;
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#else /* not HAVE_STRUCT_MNTENT */
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# ifdef HAVE_STRUCT_MNTTAB
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typedef struct mnttab mntent_t;
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# endif /* HAVE_STRUCT_MNTTAB */
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#endif /* not HAVE_STRUCT_MNTENT */
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/*
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* for various filesystem specific mount arguments
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*/
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#ifdef HAVE_SYS_FS_PC_FS_H
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# include <sys/fs/pc_fs.h>
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#endif /* HAVE_SYS_FS_PC_FS_H */
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#ifdef HAVE_MSDOSFS_MSDOSFSMOUNT_H
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# include <msdosfs/msdosfsmount.h>
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#endif /* HAVE_MSDOSFS_MSDOSFSMOUNT_H */
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#ifdef HAVE_FS_MSDOSFS_MSDOSFSMOUNT_H
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# include <fs/msdosfs/msdosfsmount.h>
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#endif /* HAVE_FS_MSDOSFS_MSDOSFSMOUNT_H */
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#ifdef HAVE_SYS_FS_EFS_CLNT_H
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# include <sys/fs/efs_clnt.h>
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#endif /* HAVE_SYS_FS_EFS_CLNT_H */
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#ifdef HAVE_SYS_FS_XFS_CLNT_H
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# include <sys/fs/xfs_clnt.h>
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#endif /* HAVE_SYS_FS_XFS_CLNT_H */
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#ifdef HAVE_SYS_FS_UFS_MOUNT_H
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# include <sys/fs/ufs_mount.h>
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#endif /* HAVE_SYS_FS_UFS_MOUNT_H */
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#ifdef HAVE_SYS_FS_AUTOFS_H
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# include <sys/fs/autofs.h>
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#endif /* HAVE_SYS_FS_AUTOFS_H */
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#ifdef HAVE_RPCSVC_AUTOFS_PROT_H
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# include <rpcsvc/autofs_prot.h>
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#else /* not HAVE_RPCSVC_AUTOFS_PROT_H */
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# ifdef HAVE_SYS_FS_AUTOFS_PROT_H
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# include <sys/fs/autofs_prot.h>
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# endif /* HAVE_SYS_FS_AUTOFS_PROT_H */
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#endif /* not HAVE_RPCSVC_AUTOFS_PROT_H */
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#ifdef HAVE_HSFS_HSFS_H
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# include <hsfs/hsfs.h>
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#endif /* HAVE_HSFS_HSFS_H */
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#ifdef HAVE_IFADDRS_H
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# include <ifaddrs.h>
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#endif /* HAVE_IFADDRS_H */
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])
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])
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])
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dnl ======================================================================
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