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authorJoachim Wuttke (l) <j.wuttke@fz-juelich.de>2018-10-10 23:03:31 +0200
committerCraig Scott <craig.scott@crascit.com>2018-10-17 23:50:22 +1100
commit74b3eacdc755bc056aac65bf5c0b45aa02d097d4 (patch)
tree2109e057f471da730612b0ed95ae6146d3c9728d /Modules/FindPkgConfig.cmake
parent88ef5737a25b40ce738041b8f9e00df20a131eb6 (diff)
downloadcmake-74b3eacdc755bc056aac65bf5c0b45aa02d097d4.tar.gz
Help: Use appropriate list types in FindPkgConfig
Diffstat (limited to 'Modules/FindPkgConfig.cmake')
-rw-r--r--Modules/FindPkgConfig.cmake69
1 files changed, 42 insertions, 27 deletions
diff --git a/Modules/FindPkgConfig.cmake b/Modules/FindPkgConfig.cmake
index 06beb7d842..a451ba5ee7 100644
--- a/Modules/FindPkgConfig.cmake
+++ b/Modules/FindPkgConfig.cmake
@@ -9,12 +9,14 @@ A ``pkg-config`` module for CMake.
Finds the ``pkg-config`` executable and adds the :command:`pkg_get_variable`,
:command:`pkg_check_modules` and :command:`pkg_search_module` commands. The
-following variables will also be set::
+following variables will also be set:
- PKG_CONFIG_FOUND ... if pkg-config executable was found
- PKG_CONFIG_EXECUTABLE ... pathname of the pkg-config program
- PKG_CONFIG_VERSION_STRING ... the version of the pkg-config program found
- (since CMake 2.8.8)
+``PKG_CONFIG_FOUND``
+ if pkg-config executable was found
+``PKG_CONFIG_EXECUTABLE``
+ pathname of the pkg-config program
+``PKG_CONFIG_VERSION_STRING``
+ version of pkg-config (since CMake 2.8.8)
#]========================================]
@@ -543,27 +545,36 @@ endmacro()
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::
+ named ``foo`` with various constraints:
- 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
+ - ``foo`` matches any version.
+ - ``foo<2`` only matches versions before 2.
+ - ``foo>=3.1`` matches any version from 3.1 or later.
+ - ``foo=1.2.3`` requires that 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
information ``pkg-config`` provides when it is called with the ``--static``
- option (``<XXX> = <prefix>_STATIC``)::
-
- <XXX>_FOUND ... set to 1 if module(s) exist
- <XXX>_LIBRARIES ... only the libraries (without the '-l')
- <XXX>_LINK_LIBRARIES ... the libraries and their absolute paths
- <XXX>_LIBRARY_DIRS ... the paths of the libraries (without the '-L')
- <XXX>_LDFLAGS ... all required linker flags
- <XXX>_LDFLAGS_OTHER ... all other linker flags
- <XXX>_INCLUDE_DIRS ... the '-I' preprocessor flags (without the '-I')
- <XXX>_CFLAGS ... all required cflags
- <XXX>_CFLAGS_OTHER ... the other compiler flags
+ option (``<XXX> = <prefix>_STATIC``)
+
+ ``<XXX>_FOUND``
+ set to 1 if module(s) exist
+ ``<XXX>_LIBRARIES``
+ only the libraries (without the '-l')
+ ``<XXX>_LINK_LIBRARIES``
+ the libraries and their absolute paths
+ ``<XXX>_LIBRARY_DIRS``
+ the paths of the libraries (without the '-L')
+ ``<XXX>_LDFLAGS``
+ all required linker flags
+ ``<XXX>_LDFLAGS_OTHER``
+ all other linker flags
+ ``<XXX>_INCLUDE_DIRS``
+ the '-I' preprocessor flags (without the '-I')
+ ``<XXX>_CFLAGS``
+ all required cflags
+ ``<XXX>_CFLAGS_OTHER``
+ the other compiler flags
All but ``<XXX>_FOUND`` may be a :ref:`;-list <CMake Language Lists>` if the
associated variable returned from ``pkg-config`` has multiple values.
@@ -571,12 +582,16 @@ endmacro()
There are some special variables whose prefix depends on the number of
``<moduleSpec>`` given. When there is only one ``<moduleSpec>``,
``<YYY>`` will simply be ``<prefix>``, but if two or more ``<moduleSpec>``
- items are given, ``<YYY>`` will be ``<prefix>_<moduleName>``::
-
- <YYY>_VERSION ... version of the module
- <YYY>_PREFIX ... prefix directory of the module
- <YYY>_INCLUDEDIR ... include directory of the module
- <YYY>_LIBDIR ... lib directory of the module
+ items are given, ``<YYY>`` will be ``<prefix>_<moduleName>``
+
+ ``<YYY>_VERSION``
+ version of the module
+ ``<YYY>_PREFIX``
+ prefix directory of the module
+ ``<YYY>_INCLUDEDIR``
+ include directory of the module
+ ``<YYY>_LIBDIR``
+ lib directory of the module
Examples