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FindLibXml2: Restore compatibility with projects setting LIBXML2_LIBRARIES

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In commit a1b38865 (FindLibXml2: Switch to standard module variable
names, 2017-07-11) the cache variable used to store the find_library
result was renamed.  This breaks projects that set the old variable name
explicitly.  Fix compatibility with such projects by using the old
variable as a default if it is set and the new one is not.
This commit is contained in:
Brad King
2017-08-02 10:35:07 -04:00
parent a1b3886556
commit d1a7756547
1 changed files with 7 additions and 0 deletions
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7
Modules/FindLibXml2.cmake
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@@ -50,6 +50,13 @@ find_path(LIBXML2_INCLUDE_DIR NAMES libxml/xpath.h
PATH_SUFFIXES libxml2
)
# CMake 3.9 and below used 'LIBXML2_LIBRARIES' as the name of
# the cache entry storing the find_library result. Use the
# value if it was set by the project or user.
if(DEFINED LIBXML2_LIBRARIES AND NOT DEFINED LIBXML2_LIBRARY)
set(LIBXML2_LIBRARY ${LIBXML2_LIBRARIES})
endif()
find_library(LIBXML2_LIBRARY NAMES xml2 libxml2
HINTS
${PC_LIBXML_LIBDIR}