Adding upstream version 1:2.3.19.1+dfsg1.upstream/1%2.3.19.1+dfsg1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/m4/c99_vsnprintf.m4 b/m4/c99_vsnprintf.m4
new file mode 100644
index 0000000..e642083
--- /dev/null
+++ b/m4/c99_vsnprintf.m4
@@ -0,0 +1,29 @@
+dnl ***
+dnl *** C99 vsnprintf()?
+dnl ***
+
+AC_DEFUN([DOVECOT_C99_VSNPRINTF], [
+  AC_CACHE_CHECK([for C99 vsnprintf()],i_cv_c99_vsnprintf,[
+    AC_RUN_IFELSE([AC_LANG_SOURCE([[
+    #include <stdio.h>
+    #include <stdarg.h>
+    static int f(const char *fmt, ...) {
+      va_list args;
+      char buf[13];
+      int ret;
+  
+      va_start(args, fmt);
+      ret = vsnprintf(buf, 11, fmt, args) != 12 || buf[11-1] != '\0';
+      va_end(args);
+      return ret;
+    }
+    int main() {
+      return f("hello %s%d", "world", 1);
+    }]])],
+    [i_cv_c99_vsnprintf=yes],
+    [i_cv_c99_vsnprintf=no])
+  ])
+  if test $i_cv_c99_vsnprintf = no; then
+    AC_DEFINE(HAVE_OLD_VSNPRINTF,, [Define if you don't have C99 compatible vsnprintf() call])
+  fi
+])