Update to latest doxygen.m4

1 files changed, 241 insertions, 187 deletions

diff --git a/m4/ax_prog_doxygen.m4 b/m4/ax_prog_doxygen.m4
index 44b22b0..3af4956 100644
--- a/m4/ax_prog_doxygen.m4
+++ b/m4/ax_prog_doxygen.m4
@@ -1,10 +1,10 @@
 # ===========================================================================
-#      http://www.gnu.org/software/autoconf-archive/ax_prog_doxygen.html
+#     https://www.gnu.org/software/autoconf-archive/ax_prog_doxygen.html
 # ===========================================================================
 #
 # SYNOPSIS
 #
-#   DX_INIT_DOXYGEN(PROJECT-NAME, DOXYFILE-PATH, [OUTPUT-DIR])
+#   DX_INIT_DOXYGEN(PROJECT-NAME, [DOXYFILE-PATH], [OUTPUT-DIR], ...)
 #   DX_DOXYGEN_FEATURE(ON|OFF)
 #   DX_DOT_FEATURE(ON|OFF)
 #   DX_HTML_FEATURE(ON|OFF)
@@ -21,7 +21,7 @@
 #   The DX_*_FEATURE macros control the default setting for the given
 #   Doxygen feature. Supported features are 'DOXYGEN' itself, 'DOT' for
 #   generating graphics, 'HTML' for plain HTML, 'CHM' for compressed HTML
-#   help (for MS users), 'CHI' for generating a seperate .chi file by the
+#   help (for MS users), 'CHI' for generating a separate .chi file by the
 #   .chm file, and 'MAN', 'RTF', 'XML', 'PDF' and 'PS' for the appropriate
 #   output formats. The environment variable DOXYGEN_PAPER_SIZE may be
 #   specified to override the default 'a4wide' paper size.
@@ -45,14 +45,19 @@
 #   Once all the feature defaults have been specified, call DX_INIT_DOXYGEN
 #   with the following parameters: a one-word name for the project for use
 #   as a filename base etc., an optional configuration file name (the
-#   default is 'Doxyfile', the same as Doxygen's default), and an optional
-#   output directory name (the default is 'doxygen-doc').
+#   default is '$(srcdir)/Doxyfile', the same as Doxygen's default), and an
+#   optional output directory name (the default is 'doxygen-doc'). To run
+#   doxygen multiple times for different configuration files and output
+#   directories provide more parameters: the second, forth, sixth, etc
+#   parameter are configuration file names and the third, fifth, seventh,
+#   etc parameter are output directories. No checking is done to catch
+#   duplicates.
 #
 #   Automake Support
 #
-#   The following is a template aminclude.am file for use with Automake.
-#   Make targets and variables values are controlled by the various
-#   DX_COND_* conditionals set by autoconf.
+#   The DX_RULES substitution can be used to add all needed rules to the
+#   Makefile. Note that this is a substitution without being a variable:
+#   only the @DX_RULES@ syntax will work.
 #
 #   The provided targets are:
 #
@@ -61,9 +66,7 @@
 #     doxygen-run: Run doxygen, which will generate some of the
 #                  documentation (HTML, CHM, CHI, MAN, RTF, XML)
 #                  but will not do the post processing required
-#                  for the rest of it (PS, PDF, and some MAN).
-#
-#     doxygen-man: Rename some doxygen generated man pages.
+#                  for the rest of it (PS, PDF).
 #
 #     doxygen-ps:  Generate doxygen PostScript documentation.
 #
@@ -84,177 +87,17 @@
 #
 #   Then add this variable to MOSTLYCLEANFILES.
 #
-#     ----- begin aminclude.am -------------------------------------
-#
-#     ## --------------------------------- ##
-#     ## Format-independent Doxygen rules. ##
-#     ## --------------------------------- ##
-#
-#     if DX_COND_doc
-#
-#     ## ------------------------------- ##
-#     ## Rules specific for HTML output. ##
-#     ## ------------------------------- ##
-#
-#     if DX_COND_html
-#
-#     DX_CLEAN_HTML = @DX_DOCDIR@/html
-#
-#     endif DX_COND_html
-#
-#     ## ------------------------------ ##
-#     ## Rules specific for CHM output. ##
-#     ## ------------------------------ ##
-#
-#     if DX_COND_chm
-#
-#     DX_CLEAN_CHM = @DX_DOCDIR@/chm
-#
-#     if DX_COND_chi
-#
-#     DX_CLEAN_CHI = @DX_DOCDIR@/@PACKAGE@.chi
-#
-#     endif DX_COND_chi
-#
-#     endif DX_COND_chm
-#
-#     ## ------------------------------ ##
-#     ## Rules specific for MAN output. ##
-#     ## ------------------------------ ##
-#
-#     if DX_COND_man
-#
-#     DX_CLEAN_MAN = @DX_DOCDIR@/man
-#
-#     endif DX_COND_man
-#
-#     ## ------------------------------ ##
-#     ## Rules specific for RTF output. ##
-#     ## ------------------------------ ##
-#
-#     if DX_COND_rtf
-#
-#     DX_CLEAN_RTF = @DX_DOCDIR@/rtf
-#
-#     endif DX_COND_rtf
-#
-#     ## ------------------------------ ##
-#     ## Rules specific for XML output. ##
-#     ## ------------------------------ ##
-#
-#     if DX_COND_xml
-#
-#     DX_CLEAN_XML = @DX_DOCDIR@/xml
-#
-#     endif DX_COND_xml
-#
-#     ## ----------------------------- ##
-#     ## Rules specific for PS output. ##
-#     ## ----------------------------- ##
-#
-#     if DX_COND_ps
-#
-#     DX_CLEAN_PS = @DX_DOCDIR@/@PACKAGE@.ps
-#
-#     DX_PS_GOAL = doxygen-ps
-#
-#     doxygen-ps: @DX_DOCDIR@/@PACKAGE@.ps
-#
-#     @DX_DOCDIR@/@PACKAGE@.ps: @DX_DOCDIR@/@PACKAGE@.tag
-#         cd @DX_DOCDIR@/latex; \
-#         rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
-#         $(DX_LATEX) refman.tex; \
-#         $(MAKEINDEX_PATH) refman.idx; \
-#         $(DX_LATEX) refman.tex; \
-#         countdown=5; \
-#         while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
-#                           refman.log > /dev/null 2>&1 \
-#            && test $$countdown -gt 0; do \
-#             $(DX_LATEX) refman.tex; \
-#             countdown=`expr $$countdown - 1`; \
-#         done; \
-#         $(DX_DVIPS) -o ../@PACKAGE@.ps refman.dvi
-#
-#     endif DX_COND_ps
-#
-#     ## ------------------------------ ##
-#     ## Rules specific for PDF output. ##
-#     ## ------------------------------ ##
-#
-#     if DX_COND_pdf
-#
-#     DX_CLEAN_PDF = @DX_DOCDIR@/@PACKAGE@.pdf
-#
-#     DX_PDF_GOAL = doxygen-pdf
-#
-#     doxygen-pdf: @DX_DOCDIR@/@PACKAGE@.pdf
-#
-#     @DX_DOCDIR@/@PACKAGE@.pdf: @DX_DOCDIR@/@PACKAGE@.tag
-#         cd @DX_DOCDIR@/latex; \
-#         rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
-#         $(DX_PDFLATEX) refman.tex; \
-#         $(DX_MAKEINDEX) refman.idx; \
-#         $(DX_PDFLATEX) refman.tex; \
-#         countdown=5; \
-#         while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
-#                           refman.log > /dev/null 2>&1 \
-#            && test $$countdown -gt 0; do \
-#             $(DX_PDFLATEX) refman.tex; \
-#             countdown=`expr $$countdown - 1`; \
-#         done; \
-#         mv refman.pdf ../@PACKAGE@.pdf
-#
-#     endif DX_COND_pdf
-#
-#     ## ------------------------------------------------- ##
-#     ## Rules specific for LaTeX (shared for PS and PDF). ##
-#     ## ------------------------------------------------- ##
-#
-#     if DX_COND_latex
-#
-#     DX_CLEAN_LATEX = @DX_DOCDIR@/latex
-#
-#     endif DX_COND_latex
-#
-#     .PHONY: doxygen-run doxygen-doc $(DX_PS_GOAL) $(DX_PDF_GOAL)
-#
-#     .INTERMEDIATE: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
-#
-#     doxygen-run: @DX_DOCDIR@/@PACKAGE@.tag
-#
-#     doxygen-doc: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
-#
-#     @DX_DOCDIR@/@PACKAGE@.tag: $(DX_CONFIG) $(pkginclude_HEADERS)
-#         rm -rf @DX_DOCDIR@
-#         $(DX_ENV) $(DX_DOXYGEN) $(srcdir)/$(DX_CONFIG)
-#
-#     DX_CLEANFILES = \
-#         @DX_DOCDIR@/@PACKAGE@.tag \
-#         -r \
-#         $(DX_CLEAN_HTML) \
-#         $(DX_CLEAN_CHM) \
-#         $(DX_CLEAN_CHI) \
-#         $(DX_CLEAN_MAN) \
-#         $(DX_CLEAN_RTF) \
-#         $(DX_CLEAN_XML) \
-#         $(DX_CLEAN_PS) \
-#         $(DX_CLEAN_PDF) \
-#         $(DX_CLEAN_LATEX)
-#
-#     endif DX_COND_doc
-#
-#     ----- end aminclude.am ---------------------------------------
-#
 # LICENSE
 #
 #   Copyright (c) 2009 Oren Ben-Kiki <oren@ben-kiki.org>
+#   Copyright (c) 2015 Olaf Mandel <olaf@mandel.name>
 #
 #   Copying and distribution of this file, with or without modification, are
 #   permitted in any medium without royalty provided the copyright notice
 #   and this notice are preserved. This file is offered as-is, without any
 #   warranty.
 
-#serial 12
+#serial 24
 
 ## ----------##
 ## Defaults. ##
@@ -278,8 +121,14 @@ AC_DEFUN([DX_FEATURE_ps],   ON)
 
 # DX_ENV_APPEND(VARIABLE, VALUE)
 # ------------------------------
-# Append VARIABLE="VALUE" to DX_ENV for invoking doxygen.
-AC_DEFUN([DX_ENV_APPEND], [AC_SUBST([DX_ENV], ["$DX_ENV $1='$2'"])])
+# Append VARIABLE="VALUE" to DX_ENV for invoking doxygen and add it
+# as a substitution (but not a Makefile variable). The substitution
+# is skipped if the variable name is VERSION.
+AC_DEFUN([DX_ENV_APPEND],
+[AC_SUBST([DX_ENV], ["$DX_ENV $1='$2'"])dnl
+m4_if([$1], [VERSION], [], [AC_SUBST([$1], [$2])dnl
+AM_SUBST_NOTMAKE([$1])])dnl
+])
 
 # DX_DIRNAME_EXPR
 # ---------------
@@ -315,7 +164,7 @@ AC_DEFUN([DX_TEST_FEATURE], [test "$DX_FLAG_$1" = 1])
 AC_DEFUN([DX_CHECK_DEPEND], [
 test "$DX_FLAG_$1" = "$2" \
 || AC_MSG_ERROR([doxygen-DX_CURRENT_FEATURE ifelse([$2], 1,
-                            requires, contradicts) doxygen-DX_CURRENT_FEATURE])
+                            requires, contradicts) doxygen-$1])
 ])
 
 # DX_CLEAR_DEPEND(FEATURE, REQUIRED_FEATURE, REQUIRED_STATE)
@@ -364,7 +213,6 @@ if DX_TEST_FEATURE([$1]); then
     $5
     :
 fi
-AM_CONDITIONAL(DX_COND_$1, DX_TEST_FEATURE([$1]))
 if DX_TEST_FEATURE([$1]); then
     $6
     :
@@ -392,21 +240,34 @@ AC_DEFUN([DX_XML_FEATURE],     [AC_DEFUN([DX_FEATURE_xml],  [$1])])
 AC_DEFUN([DX_PDF_FEATURE],     [AC_DEFUN([DX_FEATURE_pdf],  [$1])])
 AC_DEFUN([DX_PS_FEATURE],      [AC_DEFUN([DX_FEATURE_ps],   [$1])])
 
-# DX_INIT_DOXYGEN(PROJECT, [CONFIG-FILE], [OUTPUT-DOC-DIR])
-# ---------------------------------------------------------
+# DX_INIT_DOXYGEN(PROJECT, [CONFIG-FILE], [OUTPUT-DOC-DIR], ...)
+# --------------------------------------------------------------
 # PROJECT also serves as the base name for the documentation files.
-# The default CONFIG-FILE is "Doxyfile" and OUTPUT-DOC-DIR is "doxygen-doc".
+# The default CONFIG-FILE is "$(srcdir)/Doxyfile" and OUTPUT-DOC-DIR is
+# "doxygen-doc".
+# More arguments are interpreted as interleaved CONFIG-FILE and
+# OUTPUT-DOC-DIR values.
 AC_DEFUN([DX_INIT_DOXYGEN], [
 
 # Files:
 AC_SUBST([DX_PROJECT], [$1])
-AC_SUBST([DX_CONFIG], [ifelse([$2], [], Doxyfile, [$2])])
-AC_SUBST([DX_DOCDIR], [ifelse([$3], [], doxygen-doc, [$3])])
+AC_SUBST([DX_CONFIG], ['ifelse([$2], [], [$(srcdir)/Doxyfile], [$2])'])
+AC_SUBST([DX_DOCDIR], ['ifelse([$3], [], [doxygen-doc], [$3])'])
+m4_if(m4_eval(3 < m4_count($@)), 1, [m4_for([DX_i], 4, m4_count($@), 2,
+      [AC_SUBST([DX_CONFIG]m4_eval(DX_i[/2]),
+                'm4_default_nblank_quoted(m4_argn(DX_i, $@),
+                                          [$(srcdir)/Doxyfile])')])])dnl
+m4_if(m4_eval(3 < m4_count($@)), 1, [m4_for([DX_i], 5, m4_count($@,), 2,
+      [AC_SUBST([DX_DOCDIR]m4_eval([(]DX_i[-1)/2]),
+                'm4_default_nblank_quoted(m4_argn(DX_i, $@),
+                                          [doxygen-doc])')])])dnl
+m4_define([DX_loop], m4_dquote(m4_if(m4_eval(3 < m4_count($@)), 1,
+          [m4_for([DX_i], 4, m4_count($@), 2, [, m4_eval(DX_i[/2])])],
+          [])))dnl
 
 # Environment variables used inside doxygen.cfg:
 DX_ENV_APPEND(SRCDIR, $srcdir)
 DX_ENV_APPEND(PROJECT, $DX_PROJECT)
-DX_ENV_APPEND(DOCDIR, $DX_DOCDIR)
 DX_ENV_APPEND(VERSION, $PACKAGE_VERSION)
 
 # Doxygen itself:
@@ -460,8 +321,8 @@ DX_ARG_ABLE(chm, [generate doxygen compressed HTML help documentation],
              DX_ENV_APPEND(GENERATE_HTMLHELP, YES)],
             [DX_ENV_APPEND(GENERATE_HTMLHELP, NO)])
 
-# Seperate CHI file generation.
-DX_ARG_ABLE(chi, [generate doxygen seperate compressed HTML help index file],
+# Separate CHI file generation.
+DX_ARG_ABLE(chi, [generate doxygen separate compressed HTML help index file],
             [DX_CHECK_DEPEND(chm, 1)],
             [DX_CLEAR_DEPEND(chm, 1)],
             [],
@@ -494,7 +355,6 @@ DX_ARG_ABLE(pdf, [generate doxygen PDF documentation],
              DX_REQUIRE_PROG([DX_EGREP], egrep)])
 
 # LaTeX generation for PS and/or PDF:
-AM_CONDITIONAL(DX_COND_latex, DX_TEST_FEATURE(ps) || DX_TEST_FEATURE(pdf))
 if DX_TEST_FEATURE(ps) || DX_TEST_FEATURE(pdf); then
     DX_ENV_APPEND(GENERATE_LATEX, YES)
 else
@@ -517,6 +377,200 @@ a4wide|a4|letter|legal|executive)
 ;;
 esac
 
+# Rules:
+AS_IF([[test $DX_FLAG_html -eq 1]],
+[[DX_SNIPPET_html="## ------------------------------- ##
+## Rules specific for HTML output. ##
+## ------------------------------- ##
+
+DX_CLEAN_HTML = \$(DX_DOCDIR)/html]dnl
+m4_foreach([DX_i], [m4_shift(DX_loop)], [[\\
+                \$(DX_DOCDIR]DX_i[)/html]])[
+
+"]],
+[[DX_SNIPPET_html=""]])
+AS_IF([[test $DX_FLAG_chi -eq 1]],
+[[DX_SNIPPET_chi="
+DX_CLEAN_CHI = \$(DX_DOCDIR)/\$(PACKAGE).chi]dnl
+m4_foreach([DX_i], [m4_shift(DX_loop)], [[\\
+               \$(DX_DOCDIR]DX_i[)/\$(PACKAGE).chi]])["]],
+[[DX_SNIPPET_chi=""]])
+AS_IF([[test $DX_FLAG_chm -eq 1]],
+[[DX_SNIPPET_chm="## ------------------------------ ##
+## Rules specific for CHM output. ##
+## ------------------------------ ##
+
+DX_CLEAN_CHM = \$(DX_DOCDIR)/chm]dnl
+m4_foreach([DX_i], [m4_shift(DX_loop)], [[\\
+               \$(DX_DOCDIR]DX_i[)/chm]])[\
+${DX_SNIPPET_chi}
+
+"]],
+[[DX_SNIPPET_chm=""]])
+AS_IF([[test $DX_FLAG_man -eq 1]],
+[[DX_SNIPPET_man="## ------------------------------ ##
+## Rules specific for MAN output. ##
+## ------------------------------ ##
+
+DX_CLEAN_MAN = \$(DX_DOCDIR)/man]dnl
+m4_foreach([DX_i], [m4_shift(DX_loop)], [[\\
+               \$(DX_DOCDIR]DX_i[)/man]])[
+
+"]],
+[[DX_SNIPPET_man=""]])
+AS_IF([[test $DX_FLAG_rtf -eq 1]],
+[[DX_SNIPPET_rtf="## ------------------------------ ##
+## Rules specific for RTF output. ##
+## ------------------------------ ##
+
+DX_CLEAN_RTF = \$(DX_DOCDIR)/rtf]dnl
+m4_foreach([DX_i], [m4_shift(DX_loop)], [[\\
+               \$(DX_DOCDIR]DX_i[)/rtf]])[
+
+"]],
+[[DX_SNIPPET_rtf=""]])
+AS_IF([[test $DX_FLAG_xml -eq 1]],
+[[DX_SNIPPET_xml="## ------------------------------ ##
+## Rules specific for XML output. ##
+## ------------------------------ ##
+
+DX_CLEAN_XML = \$(DX_DOCDIR)/xml]dnl
+m4_foreach([DX_i], [m4_shift(DX_loop)], [[\\
+               \$(DX_DOCDIR]DX_i[)/xml]])[
+
+"]],
+[[DX_SNIPPET_xml=""]])
+AS_IF([[test $DX_FLAG_ps -eq 1]],
+[[DX_SNIPPET_ps="## ----------------------------- ##
+## Rules specific for PS output. ##
+## ----------------------------- ##
+
+DX_CLEAN_PS = \$(DX_DOCDIR)/\$(PACKAGE).ps]dnl
+m4_foreach([DX_i], [m4_shift(DX_loop)], [[\\
+              \$(DX_DOCDIR]DX_i[)/\$(PACKAGE).ps]])[
+
+DX_PS_GOAL = doxygen-ps
+
+doxygen-ps: \$(DX_CLEAN_PS)
+
+]m4_foreach([DX_i], [DX_loop],
+[[\$(DX_DOCDIR]DX_i[)/\$(PACKAGE).ps: \$(DX_DOCDIR]DX_i[)/\$(PACKAGE).tag
+    \$(DX_V_LATEX)cd \$(DX_DOCDIR]DX_i[)/latex; \\
+    rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \\
+    \$(DX_LATEX) refman.tex; \\
+    \$(DX_MAKEINDEX) refman.idx; \\
+    \$(DX_LATEX) refman.tex; \\
+    countdown=5; \\
+    while \$(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \\
+                      refman.log > /dev/null 2>&1 \\
+       && test \$\$countdown -gt 0; do \\
+        \$(DX_LATEX) refman.tex; \\
+            countdown=\`expr \$\$countdown - 1\`; \\
+    done; \\
+    \$(DX_DVIPS) -o ../\$(PACKAGE).ps refman.dvi
+
+]])["]],
+[[DX_SNIPPET_ps=""]])
+AS_IF([[test $DX_FLAG_pdf -eq 1]],
+[[DX_SNIPPET_pdf="## ------------------------------ ##
+## Rules specific for PDF output. ##
+## ------------------------------ ##
+
+DX_CLEAN_PDF = \$(DX_DOCDIR)/\$(PACKAGE).pdf]dnl
+m4_foreach([DX_i], [m4_shift(DX_loop)], [[\\
+               \$(DX_DOCDIR]DX_i[)/\$(PACKAGE).pdf]])[
+
+DX_PDF_GOAL = doxygen-pdf
+
+doxygen-pdf: \$(DX_CLEAN_PDF)
+
+]m4_foreach([DX_i], [DX_loop],
+[[\$(DX_DOCDIR]DX_i[)/\$(PACKAGE).pdf: \$(DX_DOCDIR]DX_i[)/\$(PACKAGE).tag
+    \$(DX_V_LATEX)cd \$(DX_DOCDIR]DX_i[)/latex; \\
+    rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \\
+    \$(DX_PDFLATEX) refman.tex; \\
+    \$(DX_MAKEINDEX) refman.idx; \\
+    \$(DX_PDFLATEX) refman.tex; \\
+    countdown=5; \\
+    while \$(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \\
+                      refman.log > /dev/null 2>&1 \\
+       && test \$\$countdown -gt 0; do \\
+        \$(DX_PDFLATEX) refman.tex; \\
+        countdown=\`expr \$\$countdown - 1\`; \\
+    done; \\
+    mv refman.pdf ../\$(PACKAGE).pdf
+
+]])["]],
+[[DX_SNIPPET_pdf=""]])
+AS_IF([[test $DX_FLAG_ps -eq 1 -o $DX_FLAG_pdf -eq 1]],
+[[DX_SNIPPET_latex="## ------------------------------------------------- ##
+## Rules specific for LaTeX (shared for PS and PDF). ##
+## ------------------------------------------------- ##
+
+DX_V_LATEX = \$(_DX_v_LATEX_\$(V))
+_DX_v_LATEX_ = \$(_DX_v_LATEX_\$(AM_DEFAULT_VERBOSITY))
+_DX_v_LATEX_0 = @echo \"  LATEX \" \$][@;
+
+DX_CLEAN_LATEX = \$(DX_DOCDIR)/latex]dnl
+m4_foreach([DX_i], [m4_shift(DX_loop)], [[\\
+                 \$(DX_DOCDIR]DX_i[)/latex]])[
+
+"]],
+[[DX_SNIPPET_latex=""]])
+
+AS_IF([[test $DX_FLAG_doc -eq 1]],
+[[DX_SNIPPET_doc="## --------------------------------- ##
+## Format-independent Doxygen rules. ##
+## --------------------------------- ##
+
+${DX_SNIPPET_html}\
+${DX_SNIPPET_chm}\
+${DX_SNIPPET_man}\
+${DX_SNIPPET_rtf}\
+${DX_SNIPPET_xml}\
+${DX_SNIPPET_ps}\
+${DX_SNIPPET_pdf}\
+${DX_SNIPPET_latex}\
+DX_V_DXGEN = \$(_DX_v_DXGEN_\$(V))
+_DX_v_DXGEN_ = \$(_DX_v_DXGEN_\$(AM_DEFAULT_VERBOSITY))
+_DX_v_DXGEN_0 = @echo \"  DXGEN \" \$<;
+
+.PHONY: doxygen-run doxygen-doc \$(DX_PS_GOAL) \$(DX_PDF_GOAL)
+
+.INTERMEDIATE: doxygen-run \$(DX_PS_GOAL) \$(DX_PDF_GOAL)
+
+doxygen-run:]m4_foreach([DX_i], [DX_loop],
+                         [[ \$(DX_DOCDIR]DX_i[)/\$(PACKAGE).tag]])[
+
+doxygen-doc: doxygen-run \$(DX_PS_GOAL) \$(DX_PDF_GOAL)
+
+]m4_foreach([DX_i], [DX_loop],
+[[\$(DX_DOCDIR]DX_i[)/\$(PACKAGE).tag: \$(DX_CONFIG]DX_i[) \$(pkginclude_HEADERS)
+    \$(A""M_V_at)rm -rf \$(DX_DOCDIR]DX_i[)
+    \$(DX_V_DXGEN)\$(DX_ENV) DOCDIR=\$(DX_DOCDIR]DX_i[) \$(DX_DOXYGEN) \$(DX_CONFIG]DX_i[)
+    \$(A""M_V_at)echo Timestamp >\$][@
+
+]])dnl
+[DX_CLEANFILES = \\]
+m4_foreach([DX_i], [DX_loop],
+[[  \$(DX_DOCDIR]DX_i[)/doxygen_sqlite3.db \\
+    \$(DX_DOCDIR]DX_i[)/\$(PACKAGE).tag \\
+]])dnl
+[   -r \\
+    \$(DX_CLEAN_HTML) \\
+    \$(DX_CLEAN_CHM) \\
+    \$(DX_CLEAN_CHI) \\
+    \$(DX_CLEAN_MAN) \\
+    \$(DX_CLEAN_RTF) \\
+    \$(DX_CLEAN_XML) \\
+    \$(DX_CLEAN_PS) \\
+    \$(DX_CLEAN_PDF) \\
+    \$(DX_CLEAN_LATEX)"]],
+[[DX_SNIPPET_doc=""]])
+AC_SUBST([DX_RULES],
+["${DX_SNIPPET_doc}"])dnl
+AM_SUBST_NOTMAKE([DX_RULES])
+
 #For debugging:
 #echo DX_FLAG_doc=$DX_FLAG_doc
 #echo DX_FLAG_dot=$DX_FLAG_dot
@@ -529,4 +583,4 @@ esac
 #echo DX_FLAG_pdf=$DX_FLAG_pdf
 #echo DX_FLAG_ps=$DX_FLAG_ps
 #echo DX_ENV=$DX_ENV
-])
+])
\ No newline at end of file