2002-08-18  Theodore A. Roth  <address@hidden>

	* config/avr_doc_pdf.m4: Check ac_has_pdftex before building pdf docs.
	* config/check_texinfo.m4: Make pdftex check separate.

Index: config/avr_doc_pdf.m4
===================================================================
RCS file: /cvsroot/simulavr/simulavr/config/avr_doc_pdf.m4,v
retrieving revision 1.2
diff -u -r1.2 avr_doc_pdf.m4
--- config/avr_doc_pdf.m4	5 Feb 2002 17:17:56 -0000	1.2
+++ config/avr_doc_pdf.m4	19 Aug 2002 06:09:35 -0000
@@ -17,9 +17,13 @@
 AC_ARG_ENABLE(pdf,
 [  --enable-pdf            enable generation of the documentation in pdf format],
 if test "$enable_pdf" == "yes"; then
-   AC_MSG_RESULT(yes)
-   TARGET_PDF=pdf
-   INSTALL_PDF=install-pdf
+   if test "$ac_has_pdftex" == "yes"; then
+      AC_MSG_RESULT(yes)
+      TARGET_PDF=pdf
+      INSTALL_PDF=install-pdf
+   else
+      AC_MSG_RESULT([no: can't build without pdftex])
+   fi
 else
    AC_MSG_RESULT(no)
 fi
Index: config/check_texinfo.m4
===================================================================
RCS file: /cvsroot/simulavr/simulavr/config/check_texinfo.m4,v
retrieving revision 1.2
diff -u -r1.2 check_texinfo.m4
--- config/check_texinfo.m4	9 Jan 2002 20:06:15 -0000	1.2
+++ config/check_texinfo.m4	19 Aug 2002 06:09:35 -0000
@@ -27,9 +27,8 @@
 dnl Checks for some programs in the tetex package.
 if test -n "$ac_doc_subdir"; then
 	AC_CHECK_PROG(has_tex, tex, "yes")
-	AC_CHECK_PROG(has_pdftex, pdftex, "yes")
 	AC_CHECK_PROG(has_texi2html, texi2html, "yes")
-	if test -z "$has_tex" || test -z "$has_pdftex" || test -z "$has_texi2html"; then
+	if test -z "$has_tex" || test -z "$has_texi2html"; then
 		ac_doc_subdir=""
 		AC_MSG_WARN([ ])
 		AC_MSG_WARN([You do not seem to have tetex installed on your system.])
@@ -51,4 +50,17 @@
 	fi
 fi
 AC_SUBST([ac_doc_subdir])
+dnl
+dnl Some minimal installs of tetex don't supply the pdf stuff, so check that separately
+if test -n "$ac_doc_subdir"; then
+	AC_CHECK_PROG(ac_has_pdftex, pdftex, "yes")
+	if test -z "$ac_has_pdftex"; then
+		AC_MSG_WARN([ ])
+		AC_MSG_WARN([Your system doesn't seem to have pdftex installed.])
+		AC_MSG_WARN([Without pdftex you can not build the pdf version of the])
+		AC_MSG_WARN([documentation.])
+		AC_MSG_WARN([ ])
+	fi
+fi
+AC_SUBST([ac_has_pdftex])
 ])