From 2b43aad081d13bdeb2ed8a65f65fbecfb470da0d Mon Sep 17 00:00:00 2001
From: David Faure <faure@kde.org>
Date: Tue, 18 Apr 2006 11:22:38 +0000
Subject: More use of the cache; fixing previous commit to not recheck
 everytime when something isn't available (e.g. agg for me).

svn path=/trunk/KDE/kdelibs/; revision=531000
---
 modules/FindOpenEXR.cmake | 156 +++++++++++++++++++++++++---------------------
 1 file changed, 84 insertions(+), 72 deletions(-)

(limited to 'modules/FindOpenEXR.cmake')

diff --git a/modules/FindOpenEXR.cmake b/modules/FindOpenEXR.cmake
index db0aa3be..a139a430 100644
--- a/modules/FindOpenEXR.cmake
+++ b/modules/FindOpenEXR.cmake
@@ -1,74 +1,86 @@
 
-# use pkg-config to get the directories and then use these values
-# in the FIND_PATH() and FIND_LIBRARY() calls
-INCLUDE(UsePkgConfig)
-
-PKGCONFIG(OpenEXR _OpenEXRIncDir _OpenEXRLinkDir _OpenEXRLinkFlags _OpenEXRCflags)
-
-#PKGCONFIG(libagg _AGGIncDir _AGGLinkDir _AGGLinkFlags _AGGCflags)
-
-FIND_PATH(OPENEXR_INCLUDE_DIR ImfRgbaFile.h
-   ${_OpenEXRIncDir}
-   ${_OpenEXRIncDir}/OpenEXR/
-   /usr/include
-   /usr/local/include
-)
-
-FIND_LIBRARY(OPENEXR_HALF_LIBRARY NAMES Half
-  PATHS
-  ${_OPENEXRLinkDir}
-  /usr/lib
-  /usr/local/lib
-)
-
-
-FIND_LIBRARY(OPENEXR_IEX_LIBRARY NAMES Iex
-  PATHS
-  ${_OPENEXRLinkDir}
-  /usr/lib
-  /usr/local/lib
-)
-
-FIND_LIBRARY(OPENEXR_IMATH_LIBRARY NAMES Imath
-  PATHS
-  ${_OPENEXRLinkDir}
-  /usr/lib
-  /usr/local/lib
-)
-
-
-FIND_LIBRARY(OPENEXR_ILMIMF_LIBRARY NAMES IlmImf 
-  PATHS
-  ${_OPENEXRLinkDir}
-  /usr/lib
-  /usr/local/lib
-)
-
-set(OPENEXR_LIBRARIES ${OPENEXR_HALF_LIBRARY} ${OPENEXR_IMATH_LIBRARY} )
-
-if (OPENEXR_INCLUDE_DIR AND OPENEXR_IMATH_LIBRARY AND OPENEXR_ILMIMF_LIBRARY  AND OPENEXR_IEX_LIBRARY AND OPENEXR_HALF_LIBRARY)
-   set(OPENEXR_FOUND TRUE)
-   set(OPENEXR_LIBRARIES ${OPENEXR_IMATH_LIBRARY} ${OPENEXR_ILMIMF_LIBRARY} ${OPENEXR_IEX_LIBRARY} ${OPENEXR_HALF_LIBRARY})
-endif (OPENEXR_INCLUDE_DIR AND OPENEXR_IMATH_LIBRARY AND OPENEXR_ILMIMF_LIBRARY AND OPENEXR_IEX_LIBRARY AND OPENEXR_HALF_LIBRARY)
-
-
-
-if (OPENEXR_FOUND)
-  if (NOT OpenEXR_FIND_QUIETLY)
-    message(STATUS "Found OPENEXR: ${OPENEXR_LIBRARIES}")
-  endif (NOT OpenEXR_FIND_QUIETLY)
-else (OPENEXR_FOUND)
-  if (OpenEXR_FIND_REQUIRED)
-    message(FATAL_ERROR "Could NOT find OPENEXR")
-  endif (OpenEXR_FIND_REQUIRED)
-endif (OPENEXR_FOUND)
-
-MARK_AS_ADVANCED(
-   OPENEXR_INCLUDE_DIR 
-   OPENEXR_LIBRARIES 
-   OPENEXR_ILMIMF_LIBRARY 
-   OPENEXR_IMATH_LIBRARY 
-   OPENEXR_IEX_LIBRARY 
-   OPENEXR_HALF_LIBRARY )
-
 
+IF (DEFINED CACHED_OPENEXR)
+
+  # in cache already
+  IF ("${CACHED_OPENEXR}" STREQUAL "YES")
+    SET(OPENEXR_FOUND TRUE)
+  ENDIF ("${CACHED_OPENEXR}" STREQUAL "YES")
+
+ELSE (DEFINED CACHED_OPENEXR)
+
+  # use pkg-config to get the directories and then use these values
+  # in the FIND_PATH() and FIND_LIBRARY() calls
+  INCLUDE(UsePkgConfig)
+  
+  PKGCONFIG(OpenEXR _OpenEXRIncDir _OpenEXRLinkDir _OpenEXRLinkFlags _OpenEXRCflags)
+  
+  FIND_PATH(OPENEXR_INCLUDE_DIR ImfRgbaFile.h
+     ${_OpenEXRIncDir}
+     ${_OpenEXRIncDir}/OpenEXR/
+     /usr/include
+     /usr/local/include
+  )
+  
+  FIND_LIBRARY(OPENEXR_HALF_LIBRARY NAMES Half
+    PATHS
+    ${_OPENEXRLinkDir}
+    /usr/lib
+    /usr/local/lib
+  )
+  
+  
+  FIND_LIBRARY(OPENEXR_IEX_LIBRARY NAMES Iex
+    PATHS
+    ${_OPENEXRLinkDir}
+    /usr/lib
+    /usr/local/lib
+  )
+  
+  FIND_LIBRARY(OPENEXR_IMATH_LIBRARY NAMES Imath
+    PATHS
+    ${_OPENEXRLinkDir}
+    /usr/lib
+    /usr/local/lib
+  )
+  
+  
+  FIND_LIBRARY(OPENEXR_ILMIMF_LIBRARY NAMES IlmImf 
+    PATHS
+    ${_OPENEXRLinkDir}
+    /usr/lib
+    /usr/local/lib
+  )
+  
+  set(OPENEXR_LIBRARIES ${OPENEXR_HALF_LIBRARY} ${OPENEXR_IMATH_LIBRARY} )
+  
+  if (OPENEXR_INCLUDE_DIR AND OPENEXR_IMATH_LIBRARY AND OPENEXR_ILMIMF_LIBRARY  AND OPENEXR_IEX_LIBRARY AND OPENEXR_HALF_LIBRARY)
+     set(OPENEXR_FOUND TRUE)
+     set(OPENEXR_LIBRARIES ${OPENEXR_IMATH_LIBRARY} ${OPENEXR_ILMIMF_LIBRARY} ${OPENEXR_IEX_LIBRARY} ${OPENEXR_HALF_LIBRARY} CACHE STRING "The libraries needed to use OpenEXR")
+  endif (OPENEXR_INCLUDE_DIR AND OPENEXR_IMATH_LIBRARY AND OPENEXR_ILMIMF_LIBRARY AND OPENEXR_IEX_LIBRARY AND OPENEXR_HALF_LIBRARY)
+  
+  
+  
+  if (OPENEXR_FOUND)
+    set(CACHED_OPENEXR "YES")
+    if (NOT OpenEXR_FIND_QUIETLY)
+      message(STATUS "Found OPENEXR: ${OPENEXR_LIBRARIES}")
+    endif (NOT OpenEXR_FIND_QUIETLY)
+  else (OPENEXR_FOUND)
+    set(CACHED_OPENEXR "NO")
+    if (OpenEXR_FIND_REQUIRED)
+      message(FATAL_ERROR "Could NOT find OPENEXR")
+    endif (OpenEXR_FIND_REQUIRED)
+  endif (OPENEXR_FOUND)
+  
+  MARK_AS_ADVANCED(
+     OPENEXR_INCLUDE_DIR 
+     OPENEXR_LIBRARIES 
+     OPENEXR_ILMIMF_LIBRARY 
+     OPENEXR_IMATH_LIBRARY 
+     OPENEXR_IEX_LIBRARY 
+     OPENEXR_HALF_LIBRARY )
+  
+  set(CACHED_OPENEXR ${CACHED_OPENEXR} CACHE INTERNAL "If openexr was checked")
+
+ENDIF (DEFINED CACHED_OPENEXR)
-- 
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