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check for and enable Large File Support automatically

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If you try to process a file using a 32bit build that is larger than
2GiB in size, the linux kernel will reject things:
$ strace -eopen dump_syms ./chrome ./ > chrome.sym
...
open(".//chrome.debug", O_RDONLY)       = -1 EOVERFLOW (Value too large for defined data type)

So let's use the existing autoconf macro to check for and enable support
as need be.

We have to shift the existing m32 logic up to before we start doing
feature test macros though otherwise a simple configure won't work:
$ ./configure --enable-m32
This is because it first tests LFS and such w/out the -m32 flags.

BUG=chromium:266064
TEST=`./configure --enable-m32 && make && make check` passes
R=benchan@chromium.org

Review URL: https://breakpad.appspot.com/619002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1250 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
vapier@chromium.org 2013-12-10 06:28:08 +00:00
parent 8d22ec9227
commit 302124aff1
3 changed files with 249 additions and 39 deletions
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6
src/config.h.in
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@ -63,3 +63,9 @@
/* Version number of package */
#undef VERSION
/* Number of bits in a file offset, on hosts where this is settable. */
#undef _FILE_OFFSET_BITS
/* Define for large files, on AIX-style hosts. */
#undef _LARGE_FILES