2002-10-28  Theodore A. Roth  <address@hidden>

	* configure.in: Fix typo.
	Update my email address.
	Add CHECK_PNG_UTILS.
	* doc/api/Makefile.am: Add png and eps files to clean list.
	Add transparency to png images.
	* doc/examples/demo/Makefile: Add transparency to png images.

Index: configure.in
===================================================================
RCS file: /cvsroot/avr-libc/avr-libc/configure.in,v
retrieving revision 1.37
diff -u -r1.37 configure.in
--- configure.in	23 Oct 2002 05:16:53 -0000	1.37
+++ configure.in	28 Oct 2002 22:39:00 -0000
@@ -153,9 +153,8 @@
 
 AC_PROG_INSTALL
 
-
 dnl troth/2002-07-12: The CHECK_DOXYGEN macro should be moved to a config
-dnl dir. I put it here until I figure out who to integrate the config dir.
+dnl dir. I put it here until I figure out how to integrate the config dir.
 
 dnl
 dnl @synopsis CHECK_DOXYGEN
@@ -163,7 +162,7 @@
 dnl This macro checks if doxygen is installed on the build system
 dnl
 dnl @version Id: check_doxygen.m4,v 1.2 2002/02/10 23:22:40 troth Exp
-dnl @author Theodore A. Roth <address@hidden>
+dnl @author Theodore A. Roth <address@hidden>
 dnl
 AC_DEFUN(CHECK_DOXYGEN,[dnl
 dnl
@@ -197,6 +196,54 @@
 ])dnl
 
 CHECK_DOXYGEN
+
+dnl
+dnl @synopsis CHECK_PNG_UTILS
+dnl
+dnl This macro checks if pngtopnm and pnmtopng are installed. If they are not
+dnl installed we just fake it with "cat".
+dnl
+dnl We use these in the dox to insert transparency into the png images as such:
+dnl
+dnl   $ pngtopnm foo.png > tmp.pnm
+dnl   $ pnmtopng -transparent white tmp.pnm > foo.png
+dnl
+dnl @version Id: check_doxygen.m4,v 1.2 2002/02/10 23:22:40 troth Exp
+dnl @author Theodore A. Roth <address@hidden>
+dnl
+AC_DEFUN(CHECK_PNG_UTILS,[dnl
+dnl
+AC_MSG_CHECKING(for pngtopnm)
+has_pngtopnm=`pngtopnm --version 2>&1 | grep -c Version`
+if test "$has_pngtopnm" = "1"; then
+	AC_MSG_RESULT(yes)
+	PNGTOPNM="pngtopnm"
+else
+	AC_MSG_RESULT(no)
+	PNGTOPNM="cat"
+fi
+dnl
+AC_MSG_CHECKING(for pngtopnm)
+has_pnmtopng=`pnmtopng --version 2>&1 | grep -c Version`
+if test "$has_pnmtopng" = "1"; then
+	AC_MSG_RESULT(yes)
+	PNMTOPNG="pnmtopng"
+else
+	AC_MSG_RESULT(no)
+	PNMTOPNG="cat"
+fi
+dnl
+dnl pnmtopng will fail if the input file is a png instead of a pnm.
+dnl
+if test "$PNMTOPNG" = "cat"; then
+	PNGTOPNM="cat"
+fi
+dnl
+AC_SUBST(PNGTOPNM)
+AC_SUBST(PNMTOPNG)
+])dnl
+
+CHECK_PNG_UTILS
 
 if test "$versioned_doc" = "yes"; then
 	DOC_INST_DIR='$(DESTDIR)$(datadir)/doc/avr-libc-$(VERSION)'
Index: doc/api/Makefile.am
===================================================================
RCS file: /cvsroot/avr-libc/avr-libc/doc/api/Makefile.am,v
retrieving revision 1.24
diff -u -r1.24 Makefile.am
--- doc/api/Makefile.am	28 Oct 2002 17:45:54 -0000	1.24
+++ doc/api/Makefile.am	28 Oct 2002 22:39:00 -0000
@@ -32,7 +32,8 @@
 #
 MAINTAINERCLEANFILES = Makefile.in stamp-vti
 
-CLEANFILES           = *.html *.pdf *.ma *.mas *.ps doxygen-pdf.config
+CLEANFILES           = *.html *.pdf *.ma *.mas *.ps doxygen-pdf.config \
+                       *.png *.eps
 
 EXTRA_DIST           = dox.css dox_html_header dox_html_footer \
                        main_page.dox \
@@ -75,6 +76,8 @@
 
 .fig.png:
 	$(FIG2DEV) -L png $< $@
+	$(PNGTOPNM) $@ > tmp.pnm
+	$(PNMTOPNG) -transparent white tmp.pnm >$@ && rm tmp.pnm
 
 IMAGE_SRC=	malloc-std.fig malloc-x1.fig malloc-x2.fig
 
Index: doc/examples/demo/Makefile
===================================================================
RCS file: /cvsroot/avr-libc/avr-libc/doc/examples/demo/Makefile,v
retrieving revision 1.1
diff -u -r1.1 Makefile
--- doc/examples/demo/Makefile	30 Sep 2002 18:16:07 -0000	1.1
+++ doc/examples/demo/Makefile	28 Oct 2002 22:39:00 -0000
@@ -70,6 +70,8 @@
 # by the casual user.
 
 FIG2DEV                 = fig2dev
+PNGTOPNM                = pngtopnm
+PNMTOPNG                = pnmtopng
 EXTRA_CLEAN_FILES       = *.hex *.bin *.srec
 
 dox: eps png pdf
@@ -86,3 +88,6 @@
 
 %.png: %.fig
 	$(FIG2DEV) -L png $< $@
+	$(PNGTOPNM) $@ > tmp.pnm
+	$(PNMTOPNG) -transparent white tmp.pnm >$@ && rm tmp.pnm
+