projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| d3b31d8b | 1 | # This macro wraps AC_SYS_LARGEFILE with one exception for Solaris. |
| 0d7d5213 | 2 | # PR binutils/9992: We have to replicate everywhere the behaviour of |
| d3b31d8b JK |
3 | # bfd's configure script so that all the directories agree on the size |
| 4 | # of structures used to describe files. | |
| 5 | ||
| 6 | AC_DEFUN([ACX_LARGEFILE],[dnl | |
| 01b0b881 | 7 | |
| 1feb5751 JM |
8 | # The tests for host and target for $enable_largefile require |
| 9 | # canonical names. | |
| 10 | AC_REQUIRE([AC_CANONICAL_HOST]) | |
| 11 | AC_REQUIRE([AC_CANONICAL_TARGET]) | |
| 12 | ||
| 01b0b881 JK |
13 | # As the $enable_largefile decision depends on --enable-plugins we must set it |
| 14 | # even in directories otherwise not depending on the $plugins option. | |
| 15 | ||
| 16 | AC_PLUGINS | |
| 17 | ||
| d3b31d8b | 18 | case "${host}" in |
| 0d7d5213 RO |
19 | sparc-*-solaris*|i?86-*-solaris*) |
| 20 | # On native 32-bit Solaris/SPARC and x86, large-file and procfs support | |
| 21 | # were mutually exclusive until Solaris 11.3. Without procfs support, | |
| 22 | # the bfd/ elf module cannot provide certain routines such as | |
| 23 | # elfcore_write_prpsinfo or elfcore_write_prstatus. So unless the user | |
| 24 | # explicitly requested large-file support through the | |
| 25 | # --enable-largefile switch, disable large-file support in favor of | |
| 26 | # procfs support. | |
| 27 | # | |
| 28 | # Check if <sys/procfs.h> is incompatible with large-file support. | |
| 29 | AC_TRY_COMPILE([#define _FILE_OFFSET_BITS 64 | |
| 30 | #define _STRUCTURED_PROC 1 | |
| 31 | #include <sys/procfs.h>], , acx_cv_procfs_lfs=yes, acx_cv_procfs_lfs=no) | |
| 32 | # | |
| 33 | # Forcefully disable large-file support only if necessary, gdb is in | |
| 34 | # tree and enabled. | |
| 35 | if test "${target}" = "${host}" -a "$acx_cv_procfs_lfs" = no \ | |
| 36 | -a -d $srcdir/../gdb -a "$enable_gdb" != no; then | |
| 37 | : ${enable_largefile="no"} | |
| 38 | if test "$plugins" = yes; then | |
| 39 | AC_MSG_WARN([ | |
| 40 | plugin support disabled; require large-file support which is incompatible with GDB.]) | |
| 41 | plugins=no | |
| 42 | fi | |
| 43 | fi | |
| 44 | # | |
| 45 | # Explicitly undef _FILE_OFFSET_BITS if enable_largefile=no for the | |
| 46 | # benefit of g++ 9+ which predefines it on Solaris. | |
| 47 | if test "$enable_largefile" = no; then | |
| 48 | LARGEFILE_CPPFLAGS="-U_FILE_OFFSET_BITS" | |
| 49 | AC_SUBST(LARGEFILE_CPPFLAGS) | |
| 50 | fi | |
| d3b31d8b JK |
51 | ;; |
| 52 | esac | |
| 53 | ||
| 54 | AC_SYS_LARGEFILE | |
| 55 | ]) |