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FindPkgConfig: Document support for > and < operators

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This was left out of commit v3.13.0-rc1~14^2 (FindPkgConfig: support
also > and < operators for version compares, 2018-10-02).
This commit is contained in:
Craig Scott
2018-10-13 17:44:18 +11:00
committed by Brad King
parent aa51bfd74f
commit 7f2bc70c5e
1 changed files with 8 additions and 5 deletions
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13
Modules/FindPkgConfig.cmake
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@@ -540,12 +540,15 @@ endmacro()
:command:`target_link_libraries`. The ``GLOBAL`` argument will make the
imported target available in global scope.
Each ``<moduleSpec>`` must be in one of the following formats::
Each ``<moduleSpec>`` can be either a bare module name or it can be a
module name with a version constraint (operators ``=``, ``<``, ``>``,
``<=`` and ``>=`` are supported). The following are examples for a module
named ``foo`` with various constraints::
{moduleName} ... matches any version
{moduleName}>={version} ... at least version <version> is required
{moduleName}={version} ... exactly version <version> is required
{moduleName}<={version} ... modules must not be newer than <version>
foo # Any version matches
foo<2 # Only match versions before 2
foo>=3.1 # Match any version from 3.1 or later
foo=1.2.3 # Foo must be exactly version 1.2.3
The following variables may be set upon return. Two sets of values exist,
one for the common case (``<XXX> = <prefix>``) and another for the