replace: Check if we have mremap() available

[idra/samba.git] / lib / replace / libreplace.m4

diff --git a/lib/replace/libreplace.m4 b/lib/replace/libreplace.m4
index c67fa66f5c202b2575c3996e1198ee77c48fe0fb..d644e5062e567869ca492cd916b69ca6a99d6398 100644 (file)
--- a/lib/replace/libreplace.m4
+++ b/lib/replace/libreplace.m4
@@ -16,7 +16,7 @@ done
 if test x"$libreplacedir" = "x"; then
        AC_MSG_ERROR([cannot find libreplace in $libreplacepaths])
 fi
-LIBREPLACEOBJ="replace.o"
+LIBREPLACEOBJ="$libreplacedir/replace.o"
 AC_SUBST(LIBREPLACEOBJ)
 
 AC_CANONICAL_BUILD
@@ -46,12 +46,11 @@ if test x"$libreplacedir" = "x"; then
        AC_MSG_ERROR([cannot find libreplace in $libreplacepaths])
 fi
 
-LIBREPLACEOBJ="replace.o"
+LIBREPLACEOBJ="$libreplacedir/replace.o"
 AC_SUBST(LIBREPLACEOBJ)
 
-LIBREPLACEOBJ="${LIBREPLACEOBJ} snprintf.o"
+LIBREPLACEOBJ="${LIBREPLACEOBJ} $libreplacedir/snprintf.o"
 
-AC_TYPE_SIGNAL
 AC_TYPE_UID_T
 AC_TYPE_MODE_T
 AC_TYPE_OFF_T
@@ -90,6 +89,8 @@ AC_INCLUDES_DEFAULT
 #endif]
 )
 
+AC_CHECK_HEADERS(linux/types.h)
+
 AC_CACHE_CHECK([for working mmap],libreplace_cv_HAVE_MMAP,[
 AC_TRY_RUN([#include "$libreplacedir/test/shared_mmap.c"],
            libreplace_cv_HAVE_MMAP=yes,libreplace_cv_HAVE_MMAP=no,libreplace_cv_HAVE_MMAP=cross)])
@@ -97,18 +98,40 @@ if test x"$libreplace_cv_HAVE_MMAP" = x"yes"; then
     AC_DEFINE(HAVE_MMAP,1,[Whether mmap works])
 fi
 
+AC_CACHE_CHECK([for working mremap],libreplace_cv_HAVE_MREMAP,[
+AC_TRY_RUN([#include "$libreplacedir/test/shared_mremap.c"],
+           libreplace_cv_HAVE_MREMAP=yes,libreplace_cv_HAVE_MREMAP=no,libreplace_cv_HAVE_MREMAP=cross)])
+if test x"$libreplace_cv_HAVE_MREMAP" = x"yes"; then
+    AC_DEFINE(HAVE_MREMAP,1,[Whether mremap works])
+fi
+
 
 AC_CHECK_HEADERS(sys/syslog.h syslog.h)
 AC_CHECK_HEADERS(sys/time.h time.h)
 AC_CHECK_HEADERS(stdarg.h vararg.h)
 AC_CHECK_HEADERS(sys/mount.h mntent.h)
 AC_CHECK_HEADERS(stropts.h)
+AC_CHECK_HEADERS(unix.h)
 
-AC_CHECK_FUNCS(seteuid setresuid setegid setresgid chroot bzero strerror)
+AC_CHECK_FUNCS(seteuid setresuid setegid setresgid chroot bzero strerror strerror_r)
 AC_CHECK_FUNCS(vsyslog setlinebuf mktime ftruncate chsize rename)
-AC_CHECK_FUNCS(waitpid strlcpy strlcat initgroups memmove strdup)
-AC_CHECK_FUNCS(pread pwrite strndup strcasestr strtok_r mkdtemp)
+AC_CHECK_FUNCS(waitpid wait4 strlcpy strlcat initgroups memmove strdup)
+AC_CHECK_FUNCS(pread pwrite strndup strcasestr strtok_r mkdtemp dup2 dprintf vdprintf)
 AC_CHECK_FUNCS(isatty chown lchown link readlink symlink realpath)
+AC_CHECK_FUNCS(fdatasync,,[
+       # if we didn't find it, look in librt (Solaris hides it there...)
+       AC_CHECK_LIB(rt, fdatasync,
+               [libreplace_cv_HAVE_FDATASYNC_IN_LIBRT=yes
+               AC_DEFINE(HAVE_FDATASYNC, 1, Define to 1 if there is support for fdatasync)])
+])
+AC_HAVE_DECL(fdatasync, [#include <unistd.h>])
+AC_CHECK_FUNCS(clock_gettime,libreplace_cv_have_clock_gettime=yes,[
+       AC_CHECK_LIB(rt, clock_gettime,
+               [libreplace_cv_HAVE_CLOCK_GETTIME_IN_LIBRT=yes
+               libreplace_cv_have_clock_gettime=yes
+               AC_DEFINE(HAVE_CLOCK_GETTIME, 1, Define to 1 if there is support for clock_gettime)])
+])
+AC_CHECK_FUNCS(get_current_dir_name)
 AC_HAVE_DECL(setresuid, [#include <unistd.h>])
 AC_HAVE_DECL(setresgid, [#include <unistd.h>])
 AC_HAVE_DECL(errno, [#include <errno.h>])
@@ -227,6 +250,8 @@ AC_HAVE_DECL(environ, [#include <unistd.h>])
 AC_CHECK_FUNCS(strnlen)
 AC_CHECK_FUNCS(strtoull __strtoull strtouq strtoll __strtoll strtoq)
 
+AC_CHECK_FUNCS(memmem)
+
 # this test disabled as we don't actually need __VA_ARGS__ yet
 AC_TRY_CPP([
 #define eprintf(...) fprintf(stderr, __VA_ARGS__)
@@ -279,7 +304,36 @@ m4_include(timegm.m4)
 m4_include(repdir.m4)
 m4_include(crypt.m4)
 
-AC_CHECK_FUNCS([syslog printf memset memcpy],,[AC_MSG_ERROR([Required function not found])])
+if test x$libreplace_cv_have_clock_gettime = xyes ; then
+       SMB_CHECK_CLOCK_ID(CLOCK_MONOTONIC)
+       SMB_CHECK_CLOCK_ID(CLOCK_PROCESS_CPUTIME_ID)
+       SMB_CHECK_CLOCK_ID(CLOCK_REALTIME)
+fi
+
+AC_CACHE_CHECK([for struct timespec type],libreplace_cv_struct_timespec, [
+    AC_TRY_COMPILE([
+#include <sys/types.h>
+#if STDC_HEADERS
+#include <stdlib.h>
+#include <stddef.h>
+#endif
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+],[struct timespec ts;],
+       libreplace_cv_struct_timespec=yes,libreplace_cv_struct_timespec=no)])
+if test x"$libreplace_cv_struct_timespec" = x"yes"; then
+   AC_DEFINE(HAVE_STRUCT_TIMESPEC,1,[Whether we have struct timespec])
+fi
+
+AC_CHECK_FUNCS([printf memset memcpy],,[AC_MSG_ERROR([Required function not found])])
 
 echo "LIBREPLACE_BROKEN_CHECKS: END"
 ]) dnl end AC_LIBREPLACE_BROKEN_CHECKS
@@ -307,4 +361,35 @@ m4_include(libreplace_ld.m4)
 m4_include(libreplace_network.m4)
 m4_include(libreplace_macros.m4)
 
+
+dnl SMB_CHECK_CLOCK_ID(clockid)
+dnl Test whether the specified clock_gettime clock ID is available. If it
+dnl is, we define HAVE_clockid
+AC_DEFUN([SMB_CHECK_CLOCK_ID],
+[
+    AC_MSG_CHECKING(for $1)
+    AC_TRY_LINK([
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+    ],
+    [
+clockid_t clk = $1;
+    ],
+    [
+       AC_MSG_RESULT(yes)
+       AC_DEFINE(HAVE_$1, 1,
+           [Whether the clock_gettime clock ID $1 is available])
+    ],
+    [
+       AC_MSG_RESULT(no)
+    ])
+])
 m4_ifndef([AC_USE_SYSTEM_EXTENSIONS],[m4_include(autoconf-2.60.m4)])