Makefile.am (stamp-pdf-doxygen): Grep for LaTeX errors in log.

	* doc/Makefile.am (stamp-pdf-doxygen): Grep for LaTeX errors in log.
	* doc/Makefile.in: Regenerate.

From-SVN: r225191

libstdc++-v3/ChangeLog

 2015-06-30  Jonathan Wakely  <jwakely@redhat.com>
 
+	* doc/Makefile.am (stamp-pdf-doxygen): Grep for LaTeX errors in log.
+	* doc/Makefile.in: Regenerate.
+
 	* include/bits/stl_pair.h: Replace class keyword with typename.
 
 2015-06-30  Ville Voutilainen  <ville.voutilainen@gmail.com>

libstdc++-v3/doc/Makefile.am

@@ -257,6 +257,7 @@ stamp-latex-doxygen: ${doxygen_outdir}/latex
 # include asking a wizard to enlarge capacity. If this is the case,
 # find texmf.cnf and add a zero for pool_size, string_vacancies,
 # max_strings, and pool_free values.
+# Errors like "File `foo.sty' not found" mean a TeX package is missing.
 stamp-pdf-doxygen: stamp-latex-doxygen ${doxygen_outdir}/pdf
 	-(cd ${doxygen_outdir}/latex && $(MAKE) -i pdf;)
 	echo "Generating doxygen pdf file...";
@@ -265,6 +266,7 @@ stamp-pdf-doxygen: stamp-latex-doxygen ${doxygen_outdir}/pdf
 	  echo ":: PDF file is ${api_pdf}"; \
 	else \
 	  echo "... error"; \
+	  grep -F 'LaTeX Error' ${doxygen_outdir}/latex/refman.log; \
 	  exit 12; \
 	fi
 	$(STAMP) stamp-pdf-doxygen

libstdc++-v3/doc/Makefile.in

@@ -891,6 +891,7 @@ stamp-latex-doxygen: ${doxygen_outdir}/latex
 # include asking a wizard to enlarge capacity. If this is the case,
 # find texmf.cnf and add a zero for pool_size, string_vacancies,
 # max_strings, and pool_free values.
+# Errors like "File `foo.sty' not found" mean a TeX package is missing.
 stamp-pdf-doxygen: stamp-latex-doxygen ${doxygen_outdir}/pdf
 	-(cd ${doxygen_outdir}/latex && $(MAKE) -i pdf;)
 	echo "Generating doxygen pdf file...";
@@ -899,6 +900,7 @@ stamp-pdf-doxygen: stamp-latex-doxygen ${doxygen_outdir}/pdf
 	  echo ":: PDF file is ${api_pdf}"; \
 	else \
 	  echo "... error"; \
+	  grep -F 'LaTeX Error' ${doxygen_outdir}/latex/refman.log; \
 	  exit 12; \
 	fi
 	$(STAMP) stamp-pdf-doxygen