b=16074

[fs/lustre-release.git] / libsysio / configure.in

diff --git a/libsysio/configure.in b/libsysio/configure.in
index 9f83269..2aedbf1 100644 (file)
--- a/libsysio/configure.in
+++ b/libsysio/configure.in
@@ -1,8 +1,10 @@
-AC_INIT(libsysio, 0.1)
+AC_INIT(libsysio, 1.2)
 
-AC_CANONICAL_HOST
+AC_CANONICAL_SYSTEM
 
 case "$host_os" in
+  aix*)
+       ;;
   linux*)
        ;;
   *)
@@ -11,15 +13,20 @@ case "$host_os" in
 esac
 
 AM_INIT_AUTOMAKE([subdir-objects])
+AC_PROG_CC
 AM_PROG_CC_C_O
 
-AC_PROG_CC
 AC_PROG_RANLIB
 AC_PROG_MAKE_SET
 AC_HEADER_STDC
 AC_HEADER_STAT
 AC_HEADER_TIME
 
+if test ${target_cpu} == "powerpc64"; then
+       AC_MSG_WARN([set compiler with -m64])
+       CC="$CC -m64"
+fi
+
 have_lib_dir=yes;
 AC_ARG_WITH(lib-dir,
   AC_HELP_STRING([--with-lib-dir=<sysio lib build directory>],
@@ -101,6 +108,28 @@ AC_ARG_WITH(zero-sum-memory,
   [with_zero_sum_memory=no])
 AC_SUBST(ZERO_SUM_MEMORY)
 
+AC_ARG_WITH(defer-init-cwd,
+  AC_HELP_STRING([--with-defer-init-cwd],
+    [defer initialization of current working directory]),
+  [    case "${withval}" in
+        yes) DEFER_INIT_CWD=-DDEFER_INIT_CWD=1 ;;
+        no) ;;
+        *) AC_MSG_ERROR(bad value ${withval} for --with-defer-init-cwd) ;;
+       esac],
+  [with_defer_init_cwd=no])
+AC_SUBST(DEFER_INIT_CWD)
+
+AC_ARG_WITH(tracing,
+  AC_HELP_STRING([--with-tracing],
+    [enable tracing support]),
+  [    case "${withval}" in
+        yes) TRACING=-DSYSIO_TRACING=1 ;;
+        no) ;;
+        *) AC_MSG_ERROR(bad value ${withval} for --with-tracing) ;;
+       esac],
+  [TRACING=-DSYSIO_TRACING=1])
+AC_SUBST(TRACING)
+
 AC_ARG_WITH(cplant_yod,
    AC_HELP_STRING([--with-cplant-yod],[build cplant yod I/O driver]),
    [   case "${withval}" in    
@@ -158,6 +187,16 @@ if test x$with_lustre_hack = xyes; then
        AC_DEFINE(HAVE_LUSTRE_HACK)
 fi
 
+AC_ARG_WITH(alternate-symbols,
+  AC_HELP_STRING([--with-alternate-symbols@<:@=<qualifier>@:>@],
+    [Prepend standard, public, symbols with a unique qualifer]),
+  [    case "${withval}" in
+        yes) SYSIO_LABEL_NAMES=-DSYSIO_LABEL_NAMES=sysio_ ;;
+        no) ;;
+        *) SYSIO_LABEL_NAMES=-DSYSIO_LABEL_NAMES="${withval}" ;;
+       esac])
+AC_SUBST(SYSIO_LABEL_NAMES)
+
 # We keep the original values in `$config_*' and never modify them, so we
 # can write them unchanged into config.make.  Everything else uses
 # $machine, $vendor, and $os, and changes them whenever convenient.
@@ -198,6 +237,64 @@ if test "$machine" = rs6000; then
        machine="powerpc"
 fi
 
+case "$host_os" in
+  gnu* | linux*)
+       AC_DEFINE(_XOPEN_SOURCE, 600)
+       ;;
+  aix*)
+       # ... and always needed...
+       AC_DEFINE(__USE_LARGEFILE64)
+       AC_DEFINE(_LARGE_FILES)
+       AC_DEFINE(_LARGE_FILE_API)
+       AC_DEFINE(_ALL_SOURCE)
+       AC_DEFINE(_XOPEN_SOURCE_EXTENDED)
+       ;;
+esac
+
+AC_MSG_CHECKING(for symlink support)
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <sys/stat.h>
+],[
+#ifndef S_ISLNK
+#error
+#endif
+],
+       symlink_support="yes",
+       symlink_support="no"
+)
+AC_MSG_RESULT($symlink_support)
+
+if test x$symlink_support = xyes; then
+       AC_MSG_CHECKING(if readlink returns int)
+       AC_TRY_COMPILE([
+#include <unistd.h>
+       ],[
+               extern int readlink(const char *, char *, size_t);
+       ],
+               readlink_returns_int="yes",
+               readlink_returns_int="no"
+       )
+       AC_MSG_RESULT($readlink_returns_int)
+       if test x$readlink_returns_int = no; then
+               AC_DEFINE(HAVE_POSIX_1003_READLINK,
+                         1,
+                         [readlink returns ssize_t])
+       fi
+fi
+
+AC_MSG_CHECKING(if readlink returns ssize_t)
+AC_TRY_COMPILE([
+       #include <unistd.h>
+],[
+       ssize_t readlink(const char *, char *, size_t);
+],[
+       AC_MSG_RESULT([yes])
+       AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
+],[
+       AC_MSG_RESULT([no])
+])
+
 # If we can't provoke the declaration of stat64 then we assume the
 # environment supports 64-bit file support naturally. Beware!
 AC_MSG_CHECKING(whether _LARGEFILE64_SOURCE definition is required)
@@ -235,61 +332,6 @@ fi
 AC_MSG_RESULT($alpha_linux_env)
 AM_CONDITIONAL(TEST_ALPHA_ARG, test x$alpha_linux_env = xyes)
 
-# check for 64 bit stat, fstat, truncate, ftruncate syscalls
-# 
-AC_MSG_CHECKING(for 64 bit stat and truncate syscalls)
-AC_TRY_COMPILE([
-#include <sys/stat.h>
-#include <syscall.h>
-extern int syscall();],
-[char path[] = "/";
-int fd = 0;
-struct stat buf;
-syscall(SYS_stat64,path,&buf);
-syscall(SYS_fstat64,fd,&buf);
-syscall(SYS_truncate64, path, buf.st_size);
-syscall(SYS_ftruncate64, fd, buf.st_size);
-],
-       sysstat64_exists=yes,
-       sysstat64_exists=no)
-AC_MSG_RESULT($sysstat64_exists)
-if test x$sysstat64_exists = xno; then
-       AC_DEFINE(USE_NATIVE_STAT)
-fi
-
-# Check for fdatasync syscall
-#
-AC_MSG_CHECKING(for fdatasync system call)
-if test x$alpha_linux_env = xyes; then
-       _syscallnum=SYS_osf_fdatasync
-else
-       _syscallnum=SYS_fdatasync
-fi
-AC_TRY_COMPILE([
-#include <syscall.h>
-extern int syscall();],
-[int fd = 0;
-syscall(SYS_fdatasync, fd);],
-       syscall_fdatasync_exists=yes,
-       syscall_fdatasync_exists=no)
-AC_MSG_RESULT($syscall_fdatasync_exists)
-if test x$syscall_fdatasync_exists = xyes; then
-       AC_DEFINE_UNQUOTED(NATIVE_FDATASYNC, $_syscallnum)
-fi
-
-# Check for SYS_utime
-#
-AC_MSG_CHECKING(for utime system call)
-AC_TRY_COMPILE([
-#include <syscall.h>
-extern int syscall();],
-[syscall(SYS_utime);],
-       syscall_utime_exists=yes,
-       syscall_utime_exists=no)
-AC_MSG_RESULT($syscall_utime_exists)
-if test x$syscall_utime_exists = xno; then
-       AC_DEFINE(USE_NATIVE_UTIME)
-fi
 # Check for __st_ino 
 #
 AC_MSG_CHECKING(for __st_ino)