docs: Ensure CLEANFILES is set before we use +=

We need to be defensive about this in the case where gtk-doc.make is
empty.
This commit is contained in:
Colin Walters 2012-08-25 17:13:43 -04:00
parent dbad8304ff
commit ac7c050d37
3 changed files with 3 additions and 0 deletions

View File

@ -168,6 +168,7 @@ XSLTPROC_FLAGS = \
endif
CLEANFILES ?=
CLEANFILES += $(man_MANS)
EXTRA_DIST += $(man_MANS)

View File

@ -116,6 +116,7 @@ XSLTPROC_FLAGS = \
endif
CLEANFILES ?=
CLEANFILES += $(man_MANS)
EXTRA_DIST += $(man_MANS)

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@ -92,6 +92,7 @@ XSLTPROC_FLAGS = \
endif
CLEANFILES ?=
CLEANFILES += $(man_MANS)
EXTRA_DIST += $(man_MANS)