Merge topic 'MinorPkgConfigDocImprovement'

59ccf38 Minor improvements to the UsePkgConfig.cmake docs
ad11118 Remove trailing whitespace

Modules/UsePkgConfig.cmake

@@ -1,13 +1,14 @@
-# - obsolete pkg-config module for CMake
+# - Osolete pkg-config module for CMake, use FindPkgConfig instead.
 #
-# Defines the following macros:
+# This module defines the following macro:
 #
 # PKGCONFIG(package includedir libdir linkflags cflags)
 #
 # Calling PKGCONFIG will fill the desired information into the 4 given arguments,
 # e.g. PKGCONFIG(libart-2.0 LIBART_INCLUDE_DIR LIBART_LINK_DIR LIBART_LINK_FLAGS LIBART_CFLAGS)
 # if pkg-config was NOT found or the specified software package doesn't exist, the
-# variable will be empty when the function returns, otherwise they will contain the respective information
+# variable will be empty when the function returns, otherwise they will contain
+# the respective information
 #
 
 #=============================================================================
@@ -27,7 +28,7 @@ FIND_PROGRAM(PKGCONFIG_EXECUTABLE NAMES pkg-config )
 
 MACRO(PKGCONFIG _package _include_DIR _link_DIR _link_FLAGS _cflags)
   MESSAGE(STATUS
-    "WARNING: you are using the obsolete 'PKGCONFIG' macro use FindPkgConfig")
+    "WARNING: you are using the obsolete 'PKGCONFIG' macro, use FindPkgConfig")
 # reset the variables at the beginning
   SET(${_include_DIR})
   SET(${_link_DIR})
@@ -42,20 +43,20 @@ MACRO(PKGCONFIG _package _include_DIR _link_DIR _link_FLAGS _cflags)
     # and if the package of interest also exists for pkg-config, then get the information
     IF(NOT _return_VALUE)
 
-      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=includedir 
+      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=includedir
         OUTPUT_VARIABLE ${_include_DIR} )
       STRING(REGEX REPLACE "[\r\n]" " " ${_include_DIR} "${${_include_DIR}}")
-    
 
-      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=libdir 
+
+      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=libdir
         OUTPUT_VARIABLE ${_link_DIR} )
       STRING(REGEX REPLACE "[\r\n]" " " ${_link_DIR} "${${_link_DIR}}")
 
-      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --libs 
+      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --libs
         OUTPUT_VARIABLE ${_link_FLAGS} )
       STRING(REGEX REPLACE "[\r\n]" " " ${_link_FLAGS} "${${_link_FLAGS}}")
 
-      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --cflags 
+      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --cflags
         OUTPUT_VARIABLE ${_cflags} )
       STRING(REGEX REPLACE "[\r\n]" " " ${_cflags} "${${_cflags}}")
 
@@ -64,10 +65,10 @@ MACRO(PKGCONFIG _package _include_DIR _link_DIR _link_FLAGS _cflags)
       MESSAGE(STATUS "PKGCONFIG() indicates that ${_package} is not installed (install the package which contains ${_package}.pc if you want to support this feature)")
 
     ENDIF(NOT _return_VALUE)
-    
+
   # if pkg-config has NOT been found, INFORM the user
   ELSE(PKGCONFIG_EXECUTABLE)
-  
+
     MESSAGE(STATUS "WARNING: PKGCONFIG() indicates that the tool pkg-config has not been found on your system. You should install it.")
 
   ENDIF(PKGCONFIG_EXECUTABLE)