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authorStefan Metzmacher <metze@samba.org>2006-09-14 08:26:41 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 14:18:40 -0500
commita0e87e5dc79bc631cb2362ebbf4d91913a342273 (patch)
tree7b7dfd24fcbf6f634a1d5dde4d5ffdca95d326ac
parent595c141a69ea0744fccba477717a71fa4abeb825 (diff)
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r18505: add configure checks for telldir() and seekdir()
telldir() is different on older OpenBSD versions seekdir() is different Tru64 tridge: OpenBSD seems to like this replacement:-) while MAC OS 10 gets 134 runtime error:-( lets wait what Tru64 will give metze (This used to be commit 1f4e602ff239b7feabb2dd1d6938dedf91bde5cd)
-rw-r--r--source4/lib/replace/libreplace_macros.m420
-rw-r--r--source4/lib/replace/repdir.m421
-rw-r--r--source4/lib/replace/repdir_getdirentries.c10
3 files changed, 47 insertions, 4 deletions
diff --git a/source4/lib/replace/libreplace_macros.m4 b/source4/lib/replace/libreplace_macros.m4
index 41ec03f07a..91f816c75d 100644
--- a/source4/lib/replace/libreplace_macros.m4
+++ b/source4/lib/replace/libreplace_macros.m4
@@ -268,3 +268,23 @@ dnl AS_HELP_STRING is not available in autoconf 2.57, and AC_HELP_STRING is depr
dnl in autoconf 2.59, so define AS_HELP_STRING to be AC_HELP_STRING unless it is already
dnl defined.
m4_ifdef([AS_HELP_STRING], , [m4_define([AS_HELP_STRING], m4_defn([AC_HELP_STRING]))])
+
+dnl check if the prototype in the header matches the given one
+dnl AC_VERIFY_C_PROTOTYPE(prototype,functionbody,[IF-TRUE].[IF-FALSE],[extraheaders])
+AC_DEFUN(AC_VERIFY_C_PROTOTYPE,
+[AC_CACHE_CHECK([for prototype $1], AS_TR_SH([ac_cv_c_prototype_$1]),
+ AC_COMPILE_IFELSE([
+ AC_INCLUDES_DEFAULT
+ $5
+ $1
+ {
+ $2
+ }
+ ],[
+ AS_TR_SH([ac_cv_c_prototype_$1])=yes
+ $3
+ ],[
+ AS_TR_SH([ac_cv_c_prototype_$1])=no
+ $4
+ ])
+)])
diff --git a/source4/lib/replace/repdir.m4 b/source4/lib/replace/repdir.m4
index 06a01964a8..93bf4ec911 100644
--- a/source4/lib/replace/repdir.m4
+++ b/source4/lib/replace/repdir.m4
@@ -14,7 +14,7 @@ if test x"$libreplace_READDIR_NEEDED" = x"yes"; then
AC_CHECK_FUNCS(getdents)
AC_CACHE_CHECK([for replacing readdir using getdents()],libreplace_READDIR_GETDENTS,[
AC_TRY_RUN([
-#include "confdefs.h"
+#define _LIBREPLACE_REPLACE_H
#include "$libreplacedir/repdir_getdents.c"
#define test_readdir_os2_delete main
#include "$libreplacedir/test/os2_delete.c"],
@@ -34,9 +34,26 @@ fi
#
if test x"$libreplace_READDIR_NEEDED" = x"yes"; then
AC_CHECK_FUNCS(getdirentries)
+AC_VERIFY_C_PROTOTYPE([long telldir(const DIR *dir)],
+ [
+ return 0;
+ ],[
+ AC_DEFINE(TELLDIR_TAKES_CONST_DIR, 1, [Whether telldir takes a const pointer])
+ ],[],[
+ #include <dirent.h>
+ ])
+
+AC_VERIFY_C_PROTOTYPE([int seekdir(DIR *dir, long ofs)],
+ [
+ return 0;
+ ],[
+ AC_DEFINE(SEEKDIR_RETURNS_INT, 1, [Whether seekdir returns an int])
+ ],[],[
+ #include <dirent.h>
+ ])
AC_CACHE_CHECK([for replacing readdir using getdirentries()],libreplace_READDIR_GETDIRENTRIES,[
AC_TRY_RUN([
-#include "confdefs.h"
+#define _LIBREPLACE_REPLACE_H
#include "$libreplacedir/repdir_getdirentries.c"
#define test_readdir_os2_delete main
#include "$libreplacedir/test/os2_delete.c"],
diff --git a/source4/lib/replace/repdir_getdirentries.c b/source4/lib/replace/repdir_getdirentries.c
index a9c1c1ce82..9e4b63145c 100644
--- a/source4/lib/replace/repdir_getdirentries.c
+++ b/source4/lib/replace/repdir_getdirentries.c
@@ -48,6 +48,7 @@
well. Contact the author.
*/
+#include "replace.h"
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>
@@ -104,8 +105,6 @@ struct dirent *readdir(DIR *dir)
return de;
}
-#define TELLDIR_TAKES_CONST_DIR
-
#ifdef TELLDIR_TAKES_CONST_DIR
long telldir(const DIR *dir)
#else
@@ -126,7 +125,11 @@ long telldir(DIR *dir)
return d->seekpos + d->ofs;
}
+#ifdef SEEKDIR_RETURNS_INT
+int seekdir(DIR *dir, long ofs)
+#else
void seekdir(DIR *dir, long ofs)
+#endif
{
struct dir_buf *d = (struct dir_buf *)dir;
long pos;
@@ -136,6 +139,9 @@ void seekdir(DIR *dir, long ofs)
while (d->ofs < (ofs & (DIR_BUF_SIZE-1))) {
if (readdir(dir) == NULL) break;
}
+#ifdef SEEKDIR_RETURNS_INT
+ return -1;
+#endif
}
void rewinddir(DIR *dir)