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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA

# 02111-1307, USA.

AC_PREREQ([2.52])

# serial 6

# When config.status generates a header, we must update the stamp-h file.

# This file resides in the same directory as the config header

# that is generated.  We must strip everything past the first ":",

# and everything past the last "/".

# _AM_DIRNAME(PATH)

# -----------------

# Like AS_DIRNAME, only do it during macro expansion

AC_DEFUN([_AM_DIRNAME],

       [m4_if(regexp([$1], [^.*[^/]//*[^/][^/]*/*$]), -1,

              m4_if(regexp([$1], [^//\([^/]\|$\)]), -1,

                    m4_if(regexp([$1], [^/.*]), -1,

                          [.],

                          patsubst([$1], [^\(/\).*], [\1])),

                    patsubst([$1], [^\(//\)\([^/].*\|$\)], [\1])),

              patsubst([$1], [^\(.*[^/]\)//*[^/][^/]*/*$], [\1]))[]dnl

])# _AM_DIRNAME

# The stamp files are numbered to have different names.

# We could number them on a directory basis, but that's additional

# complications, let's have a unique counter.

m4_define([_AM_STAMP_Count], [0])

# _AM_STAMP(HEADER)

# -----------------

# The name of the stamp file for HEADER.

AC_DEFUN([_AM_STAMP],

[m4_define([_AM_STAMP_Count], m4_incr(_AM_STAMP_Count))dnl

AS_ESCAPE(_AM_DIRNAME(patsubst([$1],

                               [:.*])))/stamp-h[]_AM_STAMP_Count])

# _AM_CONFIG_HEADER(HEADER[:SOURCES], COMMANDS, INIT-COMMANDS)

# ------------------------------------------------------------

# We used to try to get a real timestamp in stamp-h.  But the fear is that

# that will cause unnecessary cvs conflicts.

AC_DEFUN([_AM_CONFIG_HEADER],

[# Add the stamp file to the list of files AC keeps track of,

# along with our hook.

AC_CONFIG_HEADERS([$1],

                  [# update the timestamp

echo 'timestamp for $1' >"_AM_STAMP([$1])"

$2],

                  [$3])

])# _AM_CONFIG_HEADER

# AM_CONFIG_HEADER(HEADER[:SOURCES]..., COMMANDS, INIT-COMMANDS)

# --------------------------------------------------------------

AC_DEFUN([AM_CONFIG_HEADER],

[AC_FOREACH([_AM_File], [$1], [_AM_CONFIG_HEADER(_AM_File, [$2], [$3])])

])# AM_CONFIG_HEADER