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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
Download patch file Download diff file Expand all files Collapse all files

40
configure.ac
View file

@ -48,7 +48,28 @@ AC_PROG_CXX
AC_PROG_RANLIB
AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc
dnl This must come before all the feature tests below.
AC_ARG_ENABLE(m32,
AS_HELP_STRING([--enable-m32],
[Compile/build with -m32]
[(default is no)]),
[case "${enableval}" in
yes)
CFLAGS="${CFLAGS} -m32"
CXXFLAGS="${CXXFLAGS} -m32"
usem32=true
;;
no)
usem32=false
;;
*)
AC_MSG_ERROR(bad value ${enableval} for --enable-m32)
;;
esac],
[usem32=false])
AC_HEADER_STDC
AC_SYS_LARGEFILE
m4_include(m4/ax_pthread.m4)
AX_PTHREAD
AC_CHECK_HEADERS([a.out.h])
@ -69,25 +90,6 @@ case $host in
esac
AM_CONDITIONAL(ANDROID_HOST, test x$ANDROID_HOST = xtrue)
AC_ARG_ENABLE(m32,
AS_HELP_STRING([--enable-m32],
[Compile/build with -m32]
[(default is no)]),
[case "${enableval}" in
yes)
CFLAGS="${CFLAGS} -m32"
CXXFLAGS="${CXXFLAGS} -m32"
usem32=true
;;
no)
usem32=false
;;
*)
AC_MSG_ERROR(bad value ${enableval} for --enable-m32)
;;
esac],
[usem32=false])
AC_ARG_ENABLE(processor,
AS_HELP_STRING([--disable-processor],
[Don't build processor library]