Testing for errno.h is overkill. :-)

[freeglut] / configure.ac

diff --git a/configure.ac b/configure.ac
index 63c2cb8..d77c216 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -33,6 +33,7 @@ CFLAGS="$save_CFLAGS"
 
 # Checks for library functions.
 AC_PROG_GCC_TRADITIONAL
+AC_FUNC_VPRINTF
 AC_CHECK_LIBM
 AC_SUBST([LIBM])