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| author | Alastair Hughes <hobbitalastair@gmail.com> | 2016-10-27 16:48:49 +1300 |
|---|---|---|
| committer | Will Estes <westes575@gmail.com> | 2016-10-27 17:55:46 -0400 |
| commit | 92311a56b34363d150ed6badfad3450bcfe09a2f (patch) | |
| tree | fbca6574502e3fcdacb222b88f702d3fdbb9de36 /doc | |
| parent | 2bf2ad6d686f5e2a3b6329ecedc756ddfcf71453 (diff) | |
Only regenerate the man page when required.
Make the flex binary an order-only prerequisite, and add back the
prerequisites from before 7cfb440. This prevents rebuilding the man page
whenever the flex binary is rebuilt, which causes problems if help2man
is not installed and will never work when cross compiling.
Fixes #108.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/Makefile.am | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/Makefile.am b/doc/Makefile.am index 882843c..7ad39c7 100644 --- a/doc/Makefile.am +++ b/doc/Makefile.am @@ -1,5 +1,7 @@ help2man = @HELP2MAN@ +FLEX = $(top_builddir)/src/flex$(EXEEXT) + info_TEXINFOS = flex.texi dist_man_MANS = flex.1 DISTCLEANFILES = flex.1 @@ -23,8 +25,8 @@ CLEANFILES = \ flex.vr \ flex.vrs -flex.1: ../src/flex$(EXEEXT) +flex.1: $(top_srcdir)/configure.ac $(top_srcdir)/src/flex.skl $(top_srcdir)/src/options.c $(top_srcdir)/src/options.h | $(FLEX) $(help2man) --name='$(PACKAGE_NAME)' --section=1 \ --source='The Flex Project' --manual='Programming' \ - --output=$@ $< \ + --output=$@ $(FLEX) \ || rm -f $@ |