lib: split library into stdlib and nasmlib; header handling fixes

Split lib/ into nasmlib/ (for nasm-specific functions) and stdlib/
(for replacements for C library functions which may be missing.)

Rename the ersatz inttypes.h to nasmint.h so we can use a simple test
in compiler.h instead of dealing with include path magic.

Remove tests in configure.in for ancient missing functions (which will
break the build anyway.)

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/stdlib/snprintf.c b/stdlib/snprintf.c
new file mode 100644
index 00000000..95bfc314
--- /dev/null
+++ b/stdlib/snprintf.c
@@ -0,0 +1,29 @@
+/*
+ * snprintf()
+ *
+ * Implement snprintf() in terms of vsnprintf()
+ */
+
+#include "compiler.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#include "nasmlib.h"
+
+#if !defined(HAVE_SNPRINTF) && !defined(HAVE__SNPRINTF)
+
+int snprintf(char *str, size_t size, const char *format, ...)
+{
+    va_list ap;
+    int rv;
+
+    va_start(ap, format);
+    rv = vsnprintf(str, size, format, ap);
+    va_end(ap);
+
+    return rv;
+}
+
+#endif