[PATCH 2/3] build: Allow autogen-eration on systems without GTK-doc

The autogen.sh script fails if it cannot run gtkdocize. The absence of
this command should cause cairo builds to fail, it should only prevent
the build of its documentation.

Fixes:
*** No GTK-Doc found, please install it ***

on systems without gtkdoc tools.
---
 autogen.sh |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/autogen.sh b/autogen.sh
index f085022..acb23c7 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -15,8 +15,9 @@ fi
 
 GTKDOCIZE=`which gtkdocize`
 if test -z $GTKDOCIZE; then
-        echo "*** No GTK-Doc found, please install it ***"
-        exit 1
+        echo "*** No GTK-Doc found, documentation won't be generated ***"
+else
+        gtkdocize || exit $?
 fi
 
 # create dummy */Makefile.am.features and ChangeLog to make automake happy
@@ -24,7 +25,6 @@ fi
 > src/Makefile.am.features
 touch ChangeLog
 
-gtkdocize || exit $?
 autoreconf --force --install --verbose || exit $?
 
 cd $ORIGDIR
-- 
1.7.7.5 (Apple Git-26)

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