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package/swig: create a legacy symlink for swig3.0

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The host-swig package installs the swig binary as 'swig' and adds a
swig<major> symlink (E.G.  swig4.0).  This causes issues for older software
which may not know about the 4.0 version of swig, E.G.  CMake 3.10.x
contains the following swig detection logic:

find_program(SWIG_EXECUTABLE NAMES swig3.0 swig2.0 swig)

If the host has a 3.x or 2.x variant of swig installed, then that will be
used instead of our host-swig.

As a workaround, also add a swig3.0 symlink so our host-swig will be used.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
[Peter: reworded]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Yegor Yefremov 2020-02-24 11:12:52 +01:00 committed by Peter Korsgaard
parent a1859b6204
commit 738cefe700
1 changed files with 1 additions and 0 deletions
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package/swig/swig.mk
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@ -27,6 +27,7 @@ SWIG_LICENSE_FILES = LICENSE LICENSE-GPL LICENSE-UNIVERSITIES
define HOST_SWIG_INSTALL_SYMLINK
ln -fs swig $(HOST_DIR)/bin/swig$(SWIG_VERSION_MAJOR)
ln -fs swig $(HOST_DIR)/bin/swig3.0
endef
HOST_SWIG_POST_INSTALL_HOOKS += HOST_SWIG_INSTALL_SYMLINK