From e5b5923da14d12dc0d9f00c2de778d1c55671f8d Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 27 Jul 2009 16:45:15 -0400
Subject: [PATCH] BUG: Enable large files only if <cstdio> works
Some AIX/gcc version combinations the <cstdio> header breaks when large
file support is enabled. See this GCC issue for details:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20366
We work around the problem by enhancing the configuration check for
large file support to include <cstdio> when available. This will cause
LFS to be disabled when the above problem occurs.
---
CMakeLists.txt | 5 +++++
kwsysDateStamp.cmake | 2 +-
kwsysPlatformTestsCXX.cxx | 8 ++++++++
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 145e43a..92ac20f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -337,14 +337,19 @@ ENDIF(NOT CMAKE_COMPILER_IS_GNUCXX)
#-----------------------------------------------------------------------------
# Configure Large File Support.
+KWSYS_PLATFORM_CXX_TEST(KWSYS_CXX_HAS_CSTDIO
+ "Checking whether header cstdio is available" DIRECT)
SET(KWSYS_LFS_AVAILABLE 0)
IF(KWSYS_LFS_REQUESTED)
# Large File Support is requested.
SET(KWSYS_LFS_REQUESTED 1)
# Check for large file support.
+ SET(KWSYS_PLATFORM_CXX_TEST_DEFINES
+ -DKWSYS_CXX_HAS_CSTDIO=${KWSYS_CXX_HAS_CSTDIO})
KWSYS_PLATFORM_CXX_TEST_RUN(KWSYS_LFS_WORKS
"Checking for Large File Support" DIRECT)
+ SET(KWSYS_PLATFORM_CXX_TEST_DEFINES)
IF(KWSYS_LFS_WORKS)
SET(KWSYS_LFS_AVAILABLE 1)
diff --git a/kwsysDateStamp.cmake b/kwsysDateStamp.cmake
index 0382f07..54ed2d4 100644
--- a/kwsysDateStamp.cmake
+++ b/kwsysDateStamp.cmake
@@ -7,4 +7,4 @@ SET(KWSYS_DATE_STAMP_YEAR 2009)
SET(KWSYS_DATE_STAMP_MONTH 07)
# KWSys version date day component. Format is DD.
-SET(KWSYS_DATE_STAMP_DAY 26)
+SET(KWSYS_DATE_STAMP_DAY 27)
diff --git a/kwsysPlatformTestsCXX.cxx b/kwsysPlatformTestsCXX.cxx
index f0a2dfc..3d5550d 100644
--- a/kwsysPlatformTestsCXX.cxx
+++ b/kwsysPlatformTestsCXX.cxx
@@ -91,6 +91,11 @@ bool f(const kwsys_stl::string& s) { return s != ""; }
int main() { return 0; }
#endif
+#ifdef TEST_KWSYS_CXX_HAS_CSTDIO
+#include <cstdio>
+int main() { return 0; }
+#endif
+
#ifdef TEST_KWSYS_CXX_HAS_CSTDDEF
#include <cstddef>
void f(size_t) {}
@@ -331,6 +336,9 @@ int main()
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
+#if KWSYS_CXX_HAS_CSTDIO
+# include <cstdio>
+#endif
#include <stdio.h>
int main(int, char **argv)
--
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