From 5b10f96793ab6f3a4ef446d67c09ea91b7898584 Mon Sep 17 00:00:00 2001 From: Marc Chevrier Date: Wed, 23 Sep 2020 18:06:35 +0200 Subject: Linux: Compile with _FILE_OFFSET_BITS=64 on 32-bit Linux To avoid problems accessing filesystem, use 64-bit file offsets when compilation model is 32-bit. This explicit definition is needed now that KWSys does not provide LFS settings in its headers anymore. Fixes: #20568 --- CompileFlags.cmake | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'CompileFlags.cmake') diff --git a/CompileFlags.cmake b/CompileFlags.cmake index 053259f47c..1c5f1beca9 100644 --- a/CompileFlags.cmake +++ b/CompileFlags.cmake @@ -53,6 +53,12 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "^parisc") endif() endif() +# Use 64-bit off_t on 32-bit Linux +if (CMAKE_SYSTEM_NAME STREQUAL "Linux" AND CMAKE_SIZEOF_VOID_P EQUAL 4) + # ensure 64bit offsets are used for filesystem accesses for 32bit compilation + add_definitions(-D_FILE_OFFSET_BITS=64) +endif() + # Workaround for TOC Overflow on ppc64 set(bigTocFlag "") if(CMAKE_SYSTEM_NAME STREQUAL "AIX" AND -- cgit v1.2.1