mirror of
https://github.com/yuzu-emu/breakpad.git
synced 2024-12-22 19:55:42 +00:00
check for and enable Large File Support automatically
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
parent
8d22ec9227
commit
302124aff1
242
configure
vendored
242
configure
vendored
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@ -753,6 +753,7 @@ enable_option_checking
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enable_silent_rules
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enable_dependency_tracking
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enable_m32
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enable_largefile
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enable_processor
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enable_tools
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enable_selftest
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@ -1396,6 +1397,7 @@ Optional Features:
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--disable-dependency-tracking
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speeds up one-time build
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--enable-m32 Compile/build with -m32 (default is no)
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--disable-largefile omit support for large files
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--disable-processor Don't build processor library (default is no)
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--disable-tools Don't build tool binaries (default is no)
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--enable-selftest Run extra tests with "make check" (may conflict with
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@ -5491,6 +5493,26 @@ else
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fi
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# let the Makefile know if we're gcc
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# Check whether --enable-m32 was given.
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if test "${enable_m32+set}" = set; then :
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enableval=$enable_m32; case "${enableval}" in
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yes)
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CFLAGS="${CFLAGS} -m32"
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CXXFLAGS="${CXXFLAGS} -m32"
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usem32=true
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;;
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no)
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usem32=false
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;;
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*)
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as_fn_error $? "bad value ${enableval} for --enable-m32" "$LINENO" 5
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;;
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esac
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else
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usem32=false
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
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@ -5733,6 +5755,206 @@ if test $ac_cv_header_stdc = yes; then
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$as_echo "#define STDC_HEADERS 1" >>confdefs.h
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fi
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# Check whether --enable-largefile was given.
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if test "${enable_largefile+set}" = set; then :
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enableval=$enable_largefile;
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fi
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if test "$enable_largefile" != no; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for special C compiler options needed for large files" >&5
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$as_echo_n "checking for special C compiler options needed for large files... " >&6; }
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if ${ac_cv_sys_largefile_CC+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_cv_sys_largefile_CC=no
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if test "$GCC" != yes; then
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ac_save_CC=$CC
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while :; do
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# IRIX 6.2 and later do not support large files by default,
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# so use the C compiler's -n32 option if that helps.
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <sys/types.h>
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/* Check that off_t can represent 2**63 - 1 correctly.
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We can't simply define LARGE_OFF_T to be 9223372036854775807,
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since some C++ compilers masquerading as C compilers
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incorrectly reject 9223372036854775807. */
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#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
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int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
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&& LARGE_OFF_T % 2147483647 == 1)
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? 1 : -1];
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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break
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fi
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rm -f core conftest.err conftest.$ac_objext
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CC="$CC -n32"
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if ac_fn_c_try_compile "$LINENO"; then :
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ac_cv_sys_largefile_CC=' -n32'; break
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fi
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rm -f core conftest.err conftest.$ac_objext
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break
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done
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CC=$ac_save_CC
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rm -f conftest.$ac_ext
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5
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$as_echo "$ac_cv_sys_largefile_CC" >&6; }
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if test "$ac_cv_sys_largefile_CC" != no; then
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CC=$CC$ac_cv_sys_largefile_CC
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5
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$as_echo_n "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; }
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if ${ac_cv_sys_file_offset_bits+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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while :; do
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <sys/types.h>
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/* Check that off_t can represent 2**63 - 1 correctly.
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We can't simply define LARGE_OFF_T to be 9223372036854775807,
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since some C++ compilers masquerading as C compilers
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incorrectly reject 9223372036854775807. */
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#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
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int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
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&& LARGE_OFF_T % 2147483647 == 1)
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? 1 : -1];
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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ac_cv_sys_file_offset_bits=no; break
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#define _FILE_OFFSET_BITS 64
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#include <sys/types.h>
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/* Check that off_t can represent 2**63 - 1 correctly.
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We can't simply define LARGE_OFF_T to be 9223372036854775807,
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since some C++ compilers masquerading as C compilers
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incorrectly reject 9223372036854775807. */
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#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
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int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
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&& LARGE_OFF_T % 2147483647 == 1)
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? 1 : -1];
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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ac_cv_sys_file_offset_bits=64; break
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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ac_cv_sys_file_offset_bits=unknown
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break
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done
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_file_offset_bits" >&5
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$as_echo "$ac_cv_sys_file_offset_bits" >&6; }
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case $ac_cv_sys_file_offset_bits in #(
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no | unknown) ;;
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*)
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cat >>confdefs.h <<_ACEOF
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#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits
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_ACEOF
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;;
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esac
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rm -rf conftest*
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if test $ac_cv_sys_file_offset_bits = unknown; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value needed for large files" >&5
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$as_echo_n "checking for _LARGE_FILES value needed for large files... " >&6; }
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if ${ac_cv_sys_large_files+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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while :; do
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <sys/types.h>
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/* Check that off_t can represent 2**63 - 1 correctly.
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We can't simply define LARGE_OFF_T to be 9223372036854775807,
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since some C++ compilers masquerading as C compilers
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incorrectly reject 9223372036854775807. */
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#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
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int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
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&& LARGE_OFF_T % 2147483647 == 1)
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? 1 : -1];
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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ac_cv_sys_large_files=no; break
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#define _LARGE_FILES 1
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#include <sys/types.h>
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/* Check that off_t can represent 2**63 - 1 correctly.
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We can't simply define LARGE_OFF_T to be 9223372036854775807,
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since some C++ compilers masquerading as C compilers
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incorrectly reject 9223372036854775807. */
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#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
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int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
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&& LARGE_OFF_T % 2147483647 == 1)
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? 1 : -1];
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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ac_cv_sys_large_files=1; break
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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ac_cv_sys_large_files=unknown
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break
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done
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5
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$as_echo "$ac_cv_sys_large_files" >&6; }
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case $ac_cv_sys_large_files in #(
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no | unknown) ;;
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*)
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cat >>confdefs.h <<_ACEOF
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#define _LARGE_FILES $ac_cv_sys_large_files
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_ACEOF
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;;
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esac
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rm -rf conftest*
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fi
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fi
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# ===========================================================================
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@ -6248,26 +6470,6 @@ else
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fi
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# Check whether --enable-m32 was given.
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if test "${enable_m32+set}" = set; then :
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enableval=$enable_m32; case "${enableval}" in
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yes)
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CFLAGS="${CFLAGS} -m32"
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CXXFLAGS="${CXXFLAGS} -m32"
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usem32=true
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;;
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no)
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usem32=false
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;;
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*)
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as_fn_error $? "bad value ${enableval} for --enable-m32" "$LINENO" 5
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;;
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esac
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else
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usem32=false
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fi
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# Check whether --enable-processor was given.
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if test "${enable_processor+set}" = set; then :
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enableval=$enable_processor; case "${enableval}" in
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40
configure.ac
40
configure.ac
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@ -48,7 +48,28 @@ AC_PROG_CXX
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AC_PROG_RANLIB
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AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc
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dnl This must come before all the feature tests below.
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AC_ARG_ENABLE(m32,
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AS_HELP_STRING([--enable-m32],
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[Compile/build with -m32]
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[(default is no)]),
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[case "${enableval}" in
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yes)
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CFLAGS="${CFLAGS} -m32"
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CXXFLAGS="${CXXFLAGS} -m32"
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usem32=true
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;;
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no)
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usem32=false
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;;
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*)
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AC_MSG_ERROR(bad value ${enableval} for --enable-m32)
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;;
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esac],
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[usem32=false])
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AC_HEADER_STDC
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AC_SYS_LARGEFILE
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m4_include(m4/ax_pthread.m4)
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AX_PTHREAD
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AC_CHECK_HEADERS([a.out.h])
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@ -69,25 +90,6 @@ case $host in
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esac
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AM_CONDITIONAL(ANDROID_HOST, test x$ANDROID_HOST = xtrue)
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AC_ARG_ENABLE(m32,
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AS_HELP_STRING([--enable-m32],
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[Compile/build with -m32]
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[(default is no)]),
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[case "${enableval}" in
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yes)
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CFLAGS="${CFLAGS} -m32"
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CXXFLAGS="${CXXFLAGS} -m32"
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usem32=true
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;;
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no)
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usem32=false
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;;
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*)
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AC_MSG_ERROR(bad value ${enableval} for --enable-m32)
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;;
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esac],
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[usem32=false])
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AC_ARG_ENABLE(processor,
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AS_HELP_STRING([--disable-processor],
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[Don't build processor library]
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@ -63,3 +63,9 @@
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/* Version number of package */
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#undef VERSION
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/* Number of bits in a file offset, on hosts where this is settable. */
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#undef _FILE_OFFSET_BITS
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/* Define for large files, on AIX-style hosts. */
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#undef _LARGE_FILES
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