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| author |   Mike Frysinger <vapier@gentoo.org> | 2021-11-05 23:14:42 -0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2021-11-05 23:14:42 -0400 |
| commit | 632cc66ba52eb6aa7fd3e457c64d9186389a20b4 (patch) | |
| tree | f8ce207063dd445841183f1d0d832c92f41b3c6d /configure.ac | |
| parent | build: require at least a C99 compiler (diff) | |
| download | sandbox-632cc66ba52eb6aa7fd3e457c64d9186389a20b4.tar.gz sandbox-632cc66ba52eb6aa7fd3e457c64d9186389a20b4.tar.bz2 sandbox-632cc66ba52eb6aa7fd3e457c64d9186389a20b4.zip | |
change FS calls to use 64-bit interfaces explicitly
Make sure we use 64-bit FS interfaces when accessing the FS. This
is needed not only to stat or open large files, but even files with
64-bit inodes.
Bug: https://bugs.gentoo.org/583282
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 56ca87f..698051f 100644 --- a/configure.ac +++ b/configure.ac @@ -25,6 +25,13 @@ AS_IF([test "$ac_cv_prog_cc_c99" = "no"], [AC_MSG_ERROR([A C99+ compiler is requ AM_PROG_CC_C_O AC_ISC_POSIX AC_USE_SYSTEM_EXTENSIONS +dnl http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html +dnl _LARGEFILE_SOURCE: enable support for new LFS funcs (ftello/etc...) +dnl _LARGEFILE64_SOURCE: enable support for 64-bit variants (off64_t/fseeko64/etc...) +dnl NB: We do not want -D_FILE_OFFSET_BITS=64 because we need to interpose both 32-bit +dnl and 64-bit FS interfaces, and having the C library rewrite them makes that difficult. +dnl Along those lines, we do not use AC_SYS_LARGEFILE. +AS_VAR_APPEND([CPPFLAGS], [" -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE"]) dnl Checks for programs. AM_PROG_AR |