Hi everyone ,
I am trying to install minisip on ubuntu-9 server ,but when I run configure error occurs ,as shown by the config.log, please help me , what am i missing ? I 'd be grateful.

$ ./configure

## --------- ##
## Platform. ##
## --------- ##

hostname = ubuntu
uname -m = x86_64
uname -r = 2.6.24-19-server
uname -s = Linux
uname -v = #1 SMP Wed Jun 18 14:44:47 UTC 2008
...
configure:3387: checking how to run the C preprocessor
configure:3427: gcc -E conftest.c
configure:3433: $? = 0
configure:3464: gcc -E conftest.c
conftest.c:8:28: error: ac_nonexistent.h: No such file or directory
configure:3470: $? = 1
configure: failed program was:
| /* confdefs.h. */
| #define PACKAGE_NAME "libmutil"
| #define PACKAGE_TARNAME "libmutil"
| #define PACKAGE_VERSION "0.8.0"
| #define PACKAGE_STRING "libmutil 0.8.0"
| #define PACKAGE_BUGREPORT "Erik Eliasson "
| /* end confdefs.h. */
| #include <ac_nonexistent.h>