From d7afe91db8b90db6b6aab69430270895ea3546d4 Mon Sep 17 00:00:00 2001
From: Laurent Montel <montel@kde.org>
Date: Mon, 9 Jul 2007 21:33:47 +0000
Subject: Duplicate from cmake module which inform when module is not install.
 I will send an email to cmake dev but not today, it's very difficult to have
 an adsl connection in my hostel

svn path=/trunk/KDE/kdelibs/; revision=685861
---
 modules/UsePkgConfig.cmake | 50 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 modules/UsePkgConfig.cmake

(limited to 'modules')

diff --git a/modules/UsePkgConfig.cmake b/modules/UsePkgConfig.cmake
new file mode 100644
index 00000000..a3f831e5
--- /dev/null
+++ b/modules/UsePkgConfig.cmake
@@ -0,0 +1,50 @@
+# - pkg-config module for CMake
+#
+# Defines the following macros:
+#
+# 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
+#
+
+
+
+FIND_PROGRAM(PKGCONFIG_EXECUTABLE NAMES pkg-config PATHS /usr/local/bin )
+
+MACRO(PKGCONFIG _package _include_DIR _link_DIR _link_FLAGS _cflags)
+# reset the variables at the beginning
+  SET(${_include_DIR})
+  SET(${_link_DIR})
+  SET(${_link_FLAGS})
+  SET(${_cflags})
+  # if pkg-config has been found
+  IF(PKGCONFIG_EXECUTABLE)
+
+    EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --exists RETURN_VALUE _return_VALUE OUTPUT_VARIABLE _pkgconfigDevNull )
+
+    # and if the package of interest also exists for pkg-config, then get the information
+    IF(NOT _return_VALUE)
+
+      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=includedir OUTPUT_VARIABLE ${_include_DIR} )
+
+      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=libdir OUTPUT_VARIABLE ${_link_DIR} )
+
+      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --libs OUTPUT_VARIABLE ${_link_FLAGS} )
+
+      EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --cflags OUTPUT_VARIABLE ${_cflags} )
+
+    ELSE( NOT _return_VALUE)
+     
+      MESSAGE(STATUS "PKGCONFIG macro signal that ${_package} is not installed on your computer.")
+      MESSAGE(STATUS "Install package which contains ${_package}.pc if you want to support this feature.")	    
+
+    ENDIF(NOT _return_VALUE)
+
+  ENDIF(PKGCONFIG_EXECUTABLE)
+
+ENDMACRO(PKGCONFIG _include_DIR _link_DIR _link_FLAGS _cflags)
+
+MARK_AS_ADVANCED(PKGCONFIG_EXECUTABLE)
-- 
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