From aae7c8b73a7ca2712d53448f1b8e5ba72312effe Mon Sep 17 00:00:00 2001
From: dan <dan>
Date: Mon, 10 Sep 2001 22:15:05 +0000
Subject: [PATCH] fixed configure check for c99 vsnprintf

---
 acconfig.h   |  3 +++
 configure.ac | 26 ++++++++++++++++++++++++++
 configure.in |  2 +-
 3 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/acconfig.h b/acconfig.h
index 9264956b..a1ec4531 100644
--- a/acconfig.h
+++ b/acconfig.h
@@ -89,3 +89,6 @@
 /* define if you want Hermes support */
 #undef HAVE_HERMES
 
+/* define if you have vsnprintf with C99 semantics */
+#undef HAVE_C99_VSNPRINTF
+
diff --git a/configure.ac b/configure.ac
index dfaed03e..48bd150a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -103,6 +103,32 @@ AC_FUNC_ALLOCA
 AC_CHECK_FUNCS(gethostname select poll strerror strcasecmp strncasecmp setpgid atexit mallinfo snprintf vsnprintf asprintf vasprintf mkstemp)
 
 
+dnl ripped from samba
+dnl 
+AC_CACHE_CHECK([for C99 vsnprintf],_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"); }
+],
+_cv_HAVE_C99_VSNPRINTF=yes,_cv_HAVE_C99_VSNPRINTF=no,_cv_HAVE_C99_VSNPRINTF=cross)])
+if test x"$_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
+    AC_DEFINE(HAVE_C99_VSNPRINTF)
+fi
 
 dnl Loading of dynamic libraries at runtime
 dnl =======================================
diff --git a/configure.in b/configure.in
index 85dd1690..48bd150a 100644
--- a/configure.in
+++ b/configure.in
@@ -105,7 +105,7 @@ AC_CHECK_FUNCS(gethostname select poll strerror strcasecmp strncasecmp setpgid a
 
 dnl ripped from samba
 dnl 
-C_CACHE_CHECK([for C99 vsnprintf],_cv_HAVE_C99_VSNPRINTF,[
+AC_CACHE_CHECK([for C99 vsnprintf],_cv_HAVE_C99_VSNPRINTF,[
 AC_TRY_RUN([
 #include <sys/types.h>
 #include <stdarg.h>
-- 
2.11.4.GIT