+AC_SEARCH_LIBS(inet_ntop, resolv)
+
+# Solaris and HP-UX weirdness:
+# Search for libiconv_open (not iconv_open) to discover if -liconv is needed!
+AC_SEARCH_LIBS(libiconv_open, iconv)
+
+AC_MSG_CHECKING([for iconv declaration])
+AC_CACHE_VAL(am_cv_proto_iconv, [
+ AC_TRY_COMPILE([
+#include <stdlib.h>
+#include <iconv.h>
+extern
+#ifdef __cplusplus
+"C"
+#endif
+#if defined(__STDC__) || defined(__cplusplus)
+size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
+#else
+size_t iconv();
+#endif
+], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
+ am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
+ am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
+AC_MSG_RESULT([$]{ac_t:-
+ }[$]am_cv_proto_iconv)
+AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
+ [Define as const if the declaration of iconv() needs const.])
+
+dnl AC_MSG_NOTICE([Looking in libraries: $LIBS])
+
+AC_CHECK_FUNCS(inet_ntop, , [AC_LIBOBJ(lib/inet_ntop)])
+AC_CHECK_FUNCS(inet_pton, , [AC_LIBOBJ(lib/inet_pton)])
+
+AC_HAVE_TYPE([struct addrinfo], [#include <netdb.h>])
+AC_HAVE_TYPE([struct sockaddr_storage], [#include <sys/types.h>
+#include <sys/socket.h>])
+
+# Irix 6.5 has getaddrinfo but not the corresponding defines, so use
+# builtin getaddrinfo if one of the defines don't exist
+AC_CACHE_CHECK([whether defines needed by getaddrinfo exist],
+ rsync_cv_HAVE_GETADDR_DEFINES,[
+ AC_EGREP_CPP(yes, [
+ #include <sys/types.h>
+ #include <sys/socket.h>
+ #include <netdb.h>
+ #ifdef AI_PASSIVE
+ yes
+ #endif],
+ rsync_cv_HAVE_GETADDR_DEFINES=yes,
+ rsync_cv_HAVE_GETADDR_DEFINES=no)])
+if test x"$rsync_cv_HAVE_GETADDR_DEFINES" = x"yes" -a x"$ac_cv_type_struct_addrinfo" = x"yes"; then
+ # Tru64 UNIX has getaddrinfo() but has it renamed in libc as
+ # something else so we must include <netdb.h> to get the
+ # redefinition.
+ AC_CHECK_FUNCS(getaddrinfo, ,
+ [AC_MSG_CHECKING([for getaddrinfo by including <netdb.h>])
+ AC_TRY_LINK([#include <sys/types.h>
+ #include <sys/socket.h>
+ #include <netdb.h>],[getaddrinfo(NULL, NULL, NULL, NULL);],
+ [AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_GETADDRINFO, 1,
+ [Define to 1 if you have the "getaddrinfo" function and required types.])],
+ [AC_MSG_RESULT([no])
+ AC_LIBOBJ(lib/getaddrinfo)])])
+else
+ AC_LIBOBJ(lib/getaddrinfo)
+fi
+
+AC_CHECK_MEMBER([struct sockaddr.sa_len],
+ [ AC_DEFINE(HAVE_SOCKADDR_LEN, 1, [Do we have sockaddr.sa_len?]) ],
+ [],
+ [
+#include <sys/types.h>
+#include <sys/socket.h>
+])
+
+AC_CHECK_MEMBER([struct sockaddr_in.sin_len],
+ [ AC_DEFINE(HAVE_SOCKADDR_IN_LEN, 1, [Do we have sockaddr_in.sin_len?]) ],
+ [],
+ [
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+])
+
+AC_CHECK_MEMBER([struct sockaddr_un.sun_len],
+ [ AC_DEFINE(HAVE_SOCKADDR_UN_LEN, 1, [Do we have sockaddr_un.sun_len?]) ],
+ [],
+ [
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+])
+
+AC_CHECK_MEMBER([struct sockaddr_in6.sin6_scope_id],
+ [ AC_DEFINE(HAVE_SOCKADDR_IN6_SCOPE_ID, 1, [Do we have sockaddr_in6.sin6_scope_id?]) ],
+ [],
+ [
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+])
+
+AC_HAVE_TYPE([struct stat64], [#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# if HAVE_STDLIB_H
+# include <stdlib.h>
+# endif
+#endif
+])
+
+# if we can't find strcasecmp, look in -lresolv (for Unixware at least)
+#
+AC_CHECK_FUNCS(strcasecmp)
+if test x"$ac_cv_func_strcasecmp" = x"no"; then
+ AC_CHECK_LIB(resolv, strcasecmp)
+fi
+
+AC_CHECK_FUNCS(aclsort)
+if test x"$ac_cv_func_aclsort" = x"no"; then
+ AC_CHECK_LIB(sec, aclsort)
+fi
+
+dnl At the moment we don't test for a broken memcmp(), because all we
+dnl need to do is test for equality, not comparison, and it seems that
+dnl every platform has a memcmp that can do at least that.
+dnl AC_FUNC_MEMCMP
+
+AC_FUNC_UTIME_NULL
+AC_FUNC_ALLOCA
+AC_CHECK_FUNCS(waitpid wait4 getcwd strdup chown chmod lchmod mknod mkfifo \
+ fchmod fstat ftruncate strchr readlink link utime utimes lutimes strftime \
+ memmove lchown vsnprintf snprintf vasprintf asprintf setsid strpbrk \
+ strlcat strlcpy strtol mallinfo getgroups setgroups geteuid getegid \
+ setlocale setmode open64 lseek64 mkstemp64 mtrace va_copy __va_copy \
+ strerror putenv iconv_open locale_charset nl_langinfo getxattr \
+ extattr_get_link sigaction sigprocmask setattrlist getgrouplist \
+ initgroups)
+
+dnl cygwin iconv.h defines iconv_open as libiconv_open
+if test x"$ac_cv_func_iconv_open" != x"yes"; then
+ AC_CHECK_FUNC(libiconv_open, [ac_cv_func_iconv_open=yes; AC_DEFINE(HAVE_ICONV_OPEN, 1)])
+fi
+
+AC_CHECK_FUNCS(getpgrp tcgetpgrp)
+if test $ac_cv_func_getpgrp = yes; then
+ AC_FUNC_GETPGRP
+fi
+
+AC_ARG_ENABLE(iconv-open,
+ AC_HELP_STRING([--disable-iconv-open],
+ [disable all use of iconv_open() function]),
+ [], [enable_iconv_open=$ac_cv_func_iconv_open])
+
+if test x"$enable_iconv_open" != x"no"; then
+ AC_DEFINE(USE_ICONV_OPEN, 1, [Define to 1 if you want rsync to make use of iconv_open()])
+fi
+
+AC_ARG_ENABLE(iconv,
+ AC_HELP_STRING([--disable-iconv],
+ [disable rsync's --iconv option]),
+ [], [enable_iconv=$enable_iconv_open])
+AH_TEMPLATE([ICONV_OPTION],
+[Define if you want the --iconv option. Specifing a value will set the
+default iconv setting (a NULL means no --iconv processing by default).])
+if test x"$enable_iconv" != x"no"; then
+ if test x"$enable_iconv" = x"yes"; then
+ AC_DEFINE(ICONV_OPTION, NULL)
+ else
+ AC_DEFINE_UNQUOTED(ICONV_OPTION, "$enable_iconv")
+ fi
+ AC_DEFINE(UTF8_CHARSET, "UTF-8", [String to pass to iconv() for the UTF-8 charset.])
+fi
+
+AC_CACHE_CHECK([whether chown() modifies symlinks],rsync_cv_chown_modifies_symlink,[
+ AC_TRY_RUN([
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#include <stdlib.h>
+#include <errno.h>
+ main() {
+ char const *dangling_symlink = "conftest.dangle";
+ unlink(dangling_symlink);
+ if (symlink("conftest.no-such", dangling_symlink) < 0) abort();
+ if (chown(dangling_symlink, getuid(), getgid()) < 0 && errno == ENOENT) exit(1);
+ exit(0);
+ }],
+ rsync_cv_chown_modifies_symlink=yes,rsync_cv_chown_modifies_symlink=no,rsync_cv_chown_modifies_symlink=no)])
+if test $rsync_cv_chown_modifies_symlink = yes; then
+ AC_DEFINE(CHOWN_MODIFIES_SYMLINK, 1, [Define to 1 if chown modifies symlinks.])
+fi
+
+AC_CACHE_CHECK([whether link() can hard-link symlinks],rsync_cv_can_hardlink_symlink,[
+ AC_TRY_RUN([
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#include <stdlib.h>
+#include <errno.h>
+#define FILENAME "conftest.dangle"
+ main() {
+ unlink(FILENAME);
+ if (symlink("conftest.no-such", FILENAME) < 0) abort();
+ if (link(FILENAME, FILENAME "2") < 0) exit(1);
+ exit(0);
+ }],
+ rsync_cv_can_hardlink_symlink=yes,rsync_cv_can_hardlink_symlink=no,rsync_cv_can_hardlink_symlink=no)])
+if test $rsync_cv_can_hardlink_symlink = yes; then
+ AC_DEFINE(CAN_HARDLINK_SYMLINK, 1, [Define to 1 if link() can hard-link symlinks.])
+fi
+
+AC_CACHE_CHECK([whether link() can hard-link special files],rsync_cv_can_hardlink_special,[
+ AC_TRY_RUN([
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#include <stdlib.h>
+#include <errno.h>
+#define FILENAME "conftest.fifi"
+ main() {
+ unlink(FILENAME);
+ if (mkfifo(FILENAME, 0777) < 0) abort();
+ if (link(FILENAME, FILENAME "2") < 0) exit(1);
+ exit(0);
+ }],
+ rsync_cv_can_hardlink_special=yes,rsync_cv_can_hardlink_special=no,rsync_cv_can_hardlink_special=no)])
+if test $rsync_cv_can_hardlink_special = yes; then
+ AC_DEFINE(CAN_HARDLINK_SPECIAL, 1, [Define to 1 if link() can hard-link special files.])
+fi
+
+AC_CACHE_CHECK([for working socketpair],rsync_cv_HAVE_SOCKETPAIR,[
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <sys/socket.h>
+
+main() {
+ int fd[2];
+ exit((socketpair(AF_UNIX, SOCK_STREAM, 0, fd) != -1) ? 0 : 1);
+}],
+rsync_cv_HAVE_SOCKETPAIR=yes,rsync_cv_HAVE_SOCKETPAIR=no,rsync_cv_HAVE_SOCKETPAIR=cross)])
+if test x"$rsync_cv_HAVE_SOCKETPAIR" = x"yes"; then
+ AC_DEFINE(HAVE_SOCKETPAIR, 1, [Define to 1 if you have the "socketpair" function])
+fi
+
+if test x"$with_included_popt" != x"yes"; then
+ AC_CHECK_LIB(popt, poptGetContext, , [with_included_popt=yes])
+fi
+if test x"$ac_cv_header_popt_popt_h" = x"yes"; then
+ # If the system has /usr/include/popt/popt.h, we enable the
+ # included popt because an attempt to "#include <popt/popt.h>"
+ # would use our included header file anyway (due to -I.), and
+ # might conflict with the system popt.
+ with_included_popt=yes
+elif test x"$ac_cv_header_popt_h" != x"yes"; then
+ with_included_popt=yes
+fi
+
+AC_MSG_CHECKING([whether to use included libpopt])
+if test x"$with_included_popt" = x"yes"; then
+ AC_MSG_RESULT($srcdir/popt)
+ BUILD_POPT='$(popt_OBJS)'
+ CFLAGS="$CFLAGS -I$srcdir/popt"
+ if test x"$ALLOCA" != x
+ then
+ # this can be removed when/if we add an included alloca.c;
+ # see autoconf documentation on AC_FUNC_ALLOCA
+ AC_MSG_WARN([included libpopt will use malloc, not alloca (which wastes a small amount of memory)])
+ fi
+else
+ AC_MSG_RESULT(no)
+fi
+
+AC_CACHE_CHECK([for unsigned char],rsync_cv_SIGNED_CHAR_OK,[
+AC_TRY_COMPILE([],[signed char *s = ""],
+rsync_cv_SIGNED_CHAR_OK=yes,rsync_cv_SIGNED_CHAR_OK=no)])
+if test x"$rsync_cv_SIGNED_CHAR_OK" = x"yes"; then
+ AC_DEFINE(SIGNED_CHAR_OK, 1, [Define to 1 if "signed char" is a valid type])
+fi
+
+AC_CACHE_CHECK([for broken readdir],rsync_cv_HAVE_BROKEN_READDIR,[
+AC_TRY_RUN([#include <sys/types.h>
+#include <dirent.h>
+main() { struct dirent *di; DIR *d = opendir("."); di = readdir(d);
+if (di && di->d_name[-2] == '.' && di->d_name[-1] == 0 &&
+di->d_name[0] == 0) exit(0); exit(1);} ],
+rsync_cv_HAVE_BROKEN_READDIR=yes,rsync_cv_HAVE_BROKEN_READDIR=no,rsync_cv_HAVE_BROKEN_READDIR=cross)])
+if test x"$rsync_cv_HAVE_BROKEN_READDIR" = x"yes"; then
+ AC_DEFINE(HAVE_BROKEN_READDIR, 1, [Define to 1 if readdir() is broken])
+fi
+
+AC_CACHE_CHECK([for utimbuf],rsync_cv_HAVE_STRUCT_UTIMBUF,[
+AC_TRY_COMPILE([#include <sys/types.h>
+#include <utime.h>],
+[struct utimbuf tbuf; tbuf.actime = 0; tbuf.modtime = 1; exit(utime("foo.c",&tbuf));],
+rsync_cv_HAVE_STRUCT_UTIMBUF=yes,rsync_cv_HAVE_STRUCT_UTIMBUF=no)])
+if test x"$rsync_cv_HAVE_STRUCT_UTIMBUF" = x"yes"; then
+ AC_DEFINE(HAVE_STRUCT_UTIMBUF, 1, [Define to 1 if you have the "struct utimbuf" type])
+fi
+
+AC_CACHE_CHECK([if gettimeofday takes tz argument],rsync_cv_HAVE_GETTIMEOFDAY_TZ,[
+AC_TRY_COMPILE([#include <sys/time.h>
+#include <unistd.h>],
+[struct timeval tv; exit(gettimeofday(&tv, NULL));],
+rsync_cv_HAVE_GETTIMEOFDAY_TZ=yes,rsync_cv_HAVE_GETTIMEOFDAY_TZ=no)])
+if test x"$rsync_cv_HAVE_GETTIMEOFDAY_TZ" != x"no"; then
+ AC_DEFINE(HAVE_GETTIMEOFDAY_TZ, 1, [Define to 1 if gettimeofday() takes a time-zone arg])
+fi
+
+AC_CACHE_CHECK([for C99 vsnprintf],rsync_cv_HAVE_C99_VSNPRINTF,[
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <stdarg.h>
+void foo(const char *format, ...) {
+ va_list ap;
+ int len;
+ char buf[5];
+
+ va_start(ap, format);
+ len = vsnprintf(0, 0, format, ap);
+ va_end(ap);
+ if (len != 5) exit(1);
+
+ if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(1);
+
+ exit(0);
+}
+main() { foo("hello"); }
+],
+rsync_cv_HAVE_C99_VSNPRINTF=yes,rsync_cv_HAVE_C99_VSNPRINTF=no,rsync_cv_HAVE_C99_VSNPRINTF=cross)])
+if test x"$rsync_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
+ AC_DEFINE(HAVE_C99_VSNPRINTF, 1, [Define to 1 if vsprintf has a C99-compatible return value])
+fi
+
+
+AC_CACHE_CHECK([for secure mkstemp],rsync_cv_HAVE_SECURE_MKSTEMP,[
+AC_TRY_RUN([#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+main() {
+ struct stat st;
+ char tpl[20]="/tmp/test.XXXXXX";
+ int fd = mkstemp(tpl);
+ if (fd == -1) exit(1);
+ unlink(tpl);
+ if (fstat(fd, &st) != 0) exit(1);
+ if ((st.st_mode & 0777) != 0600) exit(1);
+ exit(0);
+}],
+rsync_cv_HAVE_SECURE_MKSTEMP=yes,
+rsync_cv_HAVE_SECURE_MKSTEMP=no,
+rsync_cv_HAVE_SECURE_MKSTEMP=cross)])
+if test x"$rsync_cv_HAVE_SECURE_MKSTEMP" = x"yes"; then
+ case $host_os in
+ hpux*)
+ dnl HP-UX has a broken mkstemp() implementation they refuse to fix,
+ dnl so we noisily skip using it. See HP change request JAGaf34426
+ dnl for details. (sbonds)
+ AC_MSG_WARN(Skipping broken HP-UX mkstemp() -- using mktemp() instead)
+ ;;
+ *)
+ AC_DEFINE(HAVE_SECURE_MKSTEMP, 1, [Define to 1 if mkstemp() is available and works right])
+ ;;
+ esac
+fi
+
+
+AC_CACHE_CHECK([if mknod creates FIFOs],rsync_cv_MKNOD_CREATES_FIFOS,[
+AC_TRY_RUN([
+#include <stdio.h>
+#include <sys/stat.h>
+#include <errno.h>
+main() { int rc, ec; char *fn = "fifo-test";
+unlink(fn); rc = mknod(fn,S_IFIFO,0600); ec = errno; unlink(fn);
+if (rc) {printf("(%d %d) ",rc,ec); return ec;}
+return 0;}],
+ rsync_cv_MKNOD_CREATES_FIFOS=yes,rsync_cv_MKNOD_CREATES_FIFOS=no,rsync_cv_MKNOD_CREATES_FIFOS=cross)])
+if test x"$rsync_cv_MKNOD_CREATES_FIFOS" = x"yes"; then
+ AC_DEFINE(MKNOD_CREATES_FIFOS, 1, [Define to 1 if mknod() can create FIFOs.])
+fi
+
+AC_CACHE_CHECK([if mknod creates sockets],rsync_cv_MKNOD_CREATES_SOCKETS,[
+AC_TRY_RUN([
+#include <stdio.h>
+#include <sys/stat.h>
+#include <errno.h>
+main() { int rc, ec; char *fn = "sock-test";
+unlink(fn); rc = mknod(fn,S_IFSOCK,0600); ec = errno; unlink(fn);
+if (rc) {printf("(%d %d) ",rc,ec); return ec;}
+return 0;}],
+ rsync_cv_MKNOD_CREATES_SOCKETS=yes,rsync_cv_MKNOD_CREATES_SOCKETS=no,rsync_cv_MKNOD_CREATES_SOCKETS=cross)])
+if test x"$rsync_cv_MKNOD_CREATES_SOCKETS" = x"yes"; then
+ AC_DEFINE(MKNOD_CREATES_SOCKETS, 1, [Define to 1 if mknod() can create sockets.])
+fi
+