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putty-source/doc/chmextra.but
Simon Tatham 31f496b59c Integrate the 'doc' subdir into the CMake system.
The standalone separate doc/Makefile is gone, replaced by a
CMakeLists.txt that makes 'doc' function as a subdirectory of the main
CMake build system. This auto-detects Halibut, and if it's present,
uses it to build the man pages and the various forms of the main
manual, including the Windows CHM help file in particular.

One awkward thing I had to do was to move just one config directive in
blurb.but into its own file: the one that cites a relative path to the
stylesheet file to put into the CHM. CMake builds often like to be
out-of-tree, so there's no longer a fixed relative path between the
build directory and chm.css. And Halibut has no concept of an include
path to search for files cited by other files, so I can't fix that
with an -I option on the Halibut command line. So I moved that single
config directive into its own file, and had CMake write out a custom
version of that file in the build directory citing the right path.

(Perhaps in the longer term I should fix that omission in Halibut;
out-of-tree friendliness seems like a useful feature. But even if I
do, I still need this build to work now.)
2021-05-03 17:01:55 +01:00

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\# If you want to do a Halibut build of the CHM file by hand, without
\# the help of the CMake edifice, then include this file which will
\# refer to chm.css. The CMake edifice builds its own with a different
\# pathname in it, for the sake of out-of-tree builds.
\cfg{chm-extra-file}{chm.css}