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Index: cgicc-3.2.9/Makefile.am
===================================================================
--- cgicc-3.2.9.orig/Makefile.am 2010-02-25 16:34:06.000000000 +0100
+++ cgicc-3.2.9/Makefile.am 2010-02-25 16:34:14.000000000 +0100
@@ -8,9 +8,15 @@
DEMO =
endif
+if DOC
+DOCDIR = doc
+else
+DOC =
+endif
+
ACLOCAL_AMFLAGS=
-SUBDIRS = cgicc doc support $(DEMO)
+SUBDIRS = cgicc $(DOCDIR) support $(DEMO)
CLEANFILES = *~
Index: cgicc-3.2.9/configure.ac
===================================================================
--- cgicc-3.2.9.orig/configure.ac 2010-02-25 16:34:06.000000000 +0100
+++ cgicc-3.2.9/configure.ac 2010-02-25 16:45:46.000000000 +0100
@@ -17,9 +17,23 @@
AC_PROG_CXX
AC_PROG_INSTALL
AC_PROG_LIBTOOL
-AC_CHECK_PROG(DOXYGEN, doxygen, doxygen, /bin/echo)
+AC_ARG_ENABLE(doc,
+ [ --enable-doc build doc [[default=yes]]],
+ [case "${enableval}" in
+ yes) cgicc_doc=yes ;;
+ no) cgicc_doc=no ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-doc) ;;
+ esac], cgicc_doc=yes)
+
+if test "$cgicc_doc" = yes; then
+ AC_CHECK_PROG(DOXYGEN, doxygen, doxygen)
+ if test -z "$DOXYGEN" ; then
+ AC_MSG_ERROR([Doxygen is required to build the documentation])
+ fi
+fi
+AM_CONDITIONAL(DOC, test "$cgicc_doc" = yes)
dnl Determine host system type
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