I have to mention that implementing a patching facility in CMake would
probably be a considerable effort. Perhaps http://www.xmailserver.org/xdiff-lib.html
could be of use there. This library would also allow to implement '-
E diff', although I'm not sure whether that would be useful at all...
Michael
On 26. Nov, 2009, at 22:52 , Hugh Sorby wrote:
I have nothing to say for 1. and 2. but I also would like to see 3.
in CMake. Currently I am patching some third_party sources to suit
my needs and it would be easier for me if patch was added as an
CMake -E command.
I was considering making a feature request but since Michael has
mentioned it here, I thought I would add my 2 cents worth.
Michael Wild wrote:
Hi all
I have a few questions concerning the new ExternalProject module
(which, by the way is fantastic and really simplifies my code).
1. From my understanding of the ExternalProject_Add documentation,
shouldn't INSTALL_DIR be passed on the configure-line as -
DCMAKE_INSTALL_PREFIX:PATH=${INSTALL_DIR} when configuring a CMake-
based project? As far as I can tell, <INSTALL_DIR> is never used in
_ep_add_configure_command (and also no other place, although the
ExternalProject_Add_Step does the substitution).
2. Is it possible to have the library produced by
ExternalProject_Add depend on the target created by
ExternalProject_Add? This would greatly simplify dependency
tracking for me.
3. It would be really useful if CMake implemented a '-E patch'
command. In the same line, it would be great if ExternalProject_Add
had a PATCH_FILE <patch> option, which allows one to simply pass it
a patch which applies with -p1 to the source directory.
Michael
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