CMake: Configure: Add libtar support. First custom Find module.

cmake/modules/FindTar.cmake

@@ -0,0 +1,49 @@
+# Filename: FindTar.cmake
+# Author: kestred (29 Nov, 2013)
+#
+# Once done this will define
+#
+#  HAVE_TAR - system has libtar
+#  TAR_IPATH - the tar include directory
+#  TAR_LPATH - the tar library directory
+#  TAR_LIBS - the tar components found
+#
+
+if(TAR_IPATH AND TAR_LPATH)
+	set(HAVE_TAR TRUE)
+	set(TAR_LIBS tar)
+else()
+	# Find the libtar include files
+	find_path(TAR_IPATH
+		NAMES "libtar.h"
+		PATHS "/usr/include"
+		      "/usr/local/include"
+		PATH_SUFFIXES "" "tar" "libtar"
+		DOC "The path to libtar's include directory."
+	)
+
+	# Find the libtar library (.a, .so)
+	find_library(TAR_LIBRARY
+		NAMES "tar"
+		      "libtar"
+		PATHS "/usr"
+		      "/usr/local"
+		PATH_SUFFIXES "lib" "lib32" "lib64"
+	)
+	get_filename_component(TAR_LIBRARY_DIR "${TAR_LIBRARY}" PATH)
+	set(TAR_LPATH "${TAR_LIBRARY_DIR}" CACHE PATH "The path to libtar's library directory.") # Library path
+
+	if(TAR_IPATH AND TAR_LPATH)
+		set(HAVE_TAR TRUE)
+		set(TAR_LIBS tar)
+		message("BAR")
+	endif()
+
+	#include(FindPackageHandleStandardArgs)
+	#find_package_handle_standard_args(Tar DEFAULT_MSG TAR_IPATH)
+
+	unset(TAR_LIBRARY_DIR)
+	unset(TAR_LIBRARY CACHE)
+	mark_as_advanced(TAR_IPATH)
+	mark_as_advanced(TAR_LPATH)
+endif()

cmake/modules/MangleJPEG.cmake

@@ -11,8 +11,8 @@ if(JPEG_FOUND)
 
 	get_filename_component(JPEG_LIBRARY_DIR "${JPEG_LIBRARY}" PATH)
 
-	set(JPEG_IPATH "${JPEG_INCLUDE_DIR}" CACHE PATH "The path to libJPEG's include directory.") # Include path
-	set(JPEG_LPATH "${JPEG_LIBRARY_DIR}" CACHE PATH "The path to libJPEG's library directory.") # Library path
+	set(JPEG_IPATH "${JPEG_INCLUDE_DIR}" CACHE PATH "The path to libjpeg's include directory.") # Include path
+	set(JPEG_LPATH "${JPEG_LIBRARY_DIR}" CACHE PATH "The path to libjpeg's library directory.") # Library path
 	mark_as_advanced(JPEG_IPATH)
 	mark_as_advanced(JPEG_LPATH)
 

dtool/Configure.cmake

@@ -74,12 +74,17 @@ else()
     message(STATUS "- Did not find libtiff")
 endif()
 
+
+# Check for and configure TAR library
+find_package(Tar QUIET COMPONENTS tar)
 if(HAVE_TAR)
     message(STATUS "+ libtar")
 else()
     message(STATUS "- Did not find libtar")
 endif()
 
+
+
 if(HAVE_FFTW)
     message(STATUS "+ fftw")
 else()