From f248295d5d8b3cc5d21150807885b0fc332c5d56 Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Wed, 28 Apr 2004 10:00:11 -0400
Subject: ENH: fixes for optional flag arguments to check include macros

---
 Modules/CheckIncludeFile.cmake    | 12 +++++++++++-
 Modules/CheckIncludeFileCXX.cmake |  8 ++++----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/Modules/CheckIncludeFile.cmake b/Modules/CheckIncludeFile.cmake
index 4c43081..c5e3475 100644
--- a/Modules/CheckIncludeFile.cmake
+++ b/Modules/CheckIncludeFile.cmake
@@ -13,12 +13,22 @@ MACRO(CHECK_INCLUDE_FILE INCLUDE VARIABLE)
     CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CheckIncludeFile.c.in
       ${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFile.c IMMEDIATE)
     MESSAGE(STATUS "Looking for ${INCLUDE}")
+    IF(${ARGC} EQUAL 3)
+      SET(CMAKE_C_FLAGS_SAVE ${CMAKE_C_FLAGS})
+      SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ARGV2}")
+    ENDIF(${ARGC} EQUAL 3)
+
     TRY_COMPILE(${VARIABLE}
       ${CMAKE_BINARY_DIR}
       ${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFile.c
       CMAKE_FLAGS 
       -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILE_FLAGS}
-      OUTPUT_VARIABLE OUTPUT)
+      OUTPUT_VARIABLE OUTPUT) 
+
+    IF(${ARGC} EQUAL 3)
+      SET(CMAKE_C_FLAGS ${CMAKE_C_FLAGS_SAVE})
+    ENDIF(${ARGC} EQUAL 3)
+
     IF(${VARIABLE})
       MESSAGE(STATUS "Looking for ${INCLUDE} - found")
       SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
diff --git a/Modules/CheckIncludeFileCXX.cmake b/Modules/CheckIncludeFileCXX.cmake
index 0fe6a5c..5f5811a 100644
--- a/Modules/CheckIncludeFileCXX.cmake
+++ b/Modules/CheckIncludeFileCXX.cmake
@@ -13,19 +13,19 @@ MACRO(CHECK_INCLUDE_FILE_CXX INCLUDE VARIABLE)
     SET(CHECK_INCLUDE_FILE_VAR ${INCLUDE})
     CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CheckIncludeFile.cxx.in
       ${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFile.cxx IMMEDIATE)
-    IF(${ARGC} EQUAL 2)
+    IF(${ARGC} EQUAL 3)
       SET(CMAKE_CXX_FLAGS_SAVE ${CMAKE_CXX_FLAGS})
       SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ARGV2}")
-    ENDIF(${ARGC} EQUAL 2)
+    ENDIF(${ARGC} EQUAL 3)
 
     TRY_COMPILE(${VARIABLE}
       ${CMAKE_BINARY_DIR}
       ${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFile.cxx
       OUTPUT_VARIABLE OUTPUT)
 
-    IF(${ARGC} EQUAL 2)
+    IF(${ARGC} EQUAL 3)
       SET(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS_SAVE})
-    ENDIF(${ARGC} EQUAL 2)
+    ENDIF(${ARGC} EQUAL 3)
 
     IF(${VARIABLE})
       MESSAGE(STATUS "Checking for CXX include file ${INCLUDE} -- found")
-- 
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