1 files changed, 59 insertions, 0 deletions
diff --git a/config/gr_doxygen.m4 b/config/gr_doxygen.m4
new file mode 100644
index 0000000..4670c29
--- /dev/null
+++ b/config/gr_doxygen.m4
@@ -0,0 +1,59 @@
+dnl
+dnl Copyright 2003,2005 Free Software Foundation, Inc.
+dnl 
+dnl This file is part of GNU Radio
+dnl 
+dnl GNU Radio is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 3, or (at your option)
+dnl any later version.
+dnl 
+dnl GNU Radio is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl 
+dnl You should have received a copy of the GNU General Public License
+dnl along with GNU Radio; see the file COPYING.  If not, write to
+dnl the Free Software Foundation, Inc., 51 Franklin Street,
+dnl Boston, MA 02110-1301, USA.
+dnl 
+
+AC_DEFUN([GR_CHECK_DOXYGEN],[
+  AC_ARG_ENABLE(doxygen, [  --enable-doxygen        enable documentation generation with doxygen (no)])
+  AC_ARG_ENABLE(dot, [  --enable-dot            use 'dot' to generate graphs in doxygen (auto)])
+  AC_ARG_ENABLE(html-docs, [  --enable-html-docs      enable HTML generation with doxygen (yes)], [], [ enable_html_docs=yes])
+  AC_ARG_ENABLE(latex-docs, [  --enable-latex-docs     enable LaTeX doc generation with doxygen (no)], [], [ enable_latex_docs=no])
+
+  if test "x$enable_doxygen" = xyes; then
+        AC_PATH_PROG(DOXYGEN, doxygen, , $PATH)
+        if test x$DOXYGEN = x; then
+                if test "x$enable_doxygen" = xyes; then
+                        AC_MSG_ERROR([could not find doxygen])
+                fi
+                enable_doc=no
+		generate_docs=
+        else
+                enable_doc=yes
+		generate_docs=docs
+                AC_PATH_PROG(DOT, dot, , $PATH)
+        fi
+  else 
+        enable_doc=no
+  fi
+
+  AM_CONDITIONAL(DOC, test x$enable_doc = xyes)
+
+  if test x$DOT = x; then
+        if test "x$enable_dot" = xyes; then
+                AC_MSG_ERROR([could not find dot])
+        fi
+        enable_dot=no
+  else
+        enable_dot=yes
+  fi
+  AC_SUBST(enable_dot)
+  AC_SUBST(enable_html_docs)
+  AC_SUBST(enable_latex_docs)
+  AC_SUBST(generate_docs)
+])