X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/26ef00bd3c6c66240a4640aa54db1106d8b901fc..8950ac03f8fd0fb645c7d2374195ea884d091f72:/configure.in

diff --git a/configure.in b/configure.in
index d1f439eb..fca63caf 100644
--- a/configure.in
+++ b/configure.in
@@ -127,7 +127,7 @@ AC_FUNC_MEMCMP
 AC_FUNC_UTIME_NULL
 AC_CHECK_FUNCS(waitpid wait4 getcwd strdup strerror chown chmod mknod)
 AC_CHECK_FUNCS(fchmod fstat strchr readlink link utime utimes strftime)
-AC_CHECK_FUNCS(memmove lchown vsnprintf snprintf setsid glob strpbrk)
+AC_CHECK_FUNCS(memmove lchown vsnprintf snprintf asprintf setsid glob strpbrk)
 AC_CHECK_FUNCS(strlcat strlcpy mtrace)
 
 AC_CACHE_CHECK([for working socketpair],rsync_cv_HAVE_SOCKETPAIR,[
@@ -231,6 +231,32 @@ if test x"$rsync_cv_HAVE_GETTIMEOFDAY_TZ" = x"yes"; then
     AC_DEFINE(HAVE_GETTIMEOFDAY_TZ)
 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)
+fi
+
+
 AC_CACHE_CHECK([for secure mkstemp],rsync_cv_HAVE_SECURE_MKSTEMP,[
 AC_TRY_RUN([#include <stdlib.h>
 #include <sys/types.h>