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dnl Process this file with autoconf to produce a configure script.
AC_INIT(tcptrace.c)
AC_CANONICAL_SYSTEM
AC_LBL_C_INIT(V_CCOPT, V_INCLS)
dnl Checks for programs.
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_LEX
AC_PROG_YACC
dnl Checks for libraries.
dnl Replace `main' with a function in -lm:
AC_CHECK_LIB(m, main)
dnl See if "unsigned long long int" works
AC_CHECK_SIZEOF(unsigned long long int)
dnl Find a good type for other binary data types (in headers)
AC_CHECK_SIZEOF(unsigned long int)
AC_CHECK_SIZEOF(unsigned int)
AC_CHECK_SIZEOF(unsigned short)
dnl include additional checking if developing
AC_LBL_DEVEL(V_CCOPT)
dnl check for needed network libraries
AC_LBL_LIBRARY_NET()
dnl use fpurge if available, otherwise fflush
AC_CHECK_FUNCS(fpurge)
dnl use mkstemp if available, otherwise tempnam
AC_CHECK_FUNCS(mkstemp)
dnl use valloc if available, then memalign, then malloc
AC_CHECK_FUNCS(valloc memalign)
dnl check for the IPv6 routines inet_pton
AC_CHECK_FUNCS(inet_pton)
AC_MSG_CHECKING(how to print unsigned long long)
AC_SUBST(FS_ULL)
dnl AC_TRY_RUN is a test program that performs a run-time test to find out
dnl the correct syntax to print unsigned long long ints in printf stmts.
dnl If strcmp returns 0, we are on an enironment that uses %llu, otherwise
dnl we are on a MacOSX environment that uses %qu
AC_TRY_RUN([
#include <stdio.h>
#define NIX "%llu"
int main ()
{
char test[11];
unsigned long long int num = 0xdeadbeef;
sprintf (test, NIX, num);
if (strcmp (test, "3735928559") == 0)
exit (0);
else
exit (1);
}],
AC_DEFINE(USE_LLU)
AC_MSG_RESULT(%llu),
AC_MSG_RESULT(%qu),
AC_MSG_ERROR(can not run test program while cross compiling))
dnl Grab standard includes under weird Linux versions
dnl case "$target_os" in
dnl *inux*) V_INCLS="$V_INCLS -Ilinux-include";
dnl esac
dnl Grab includes from ./cygwin-includes under Windows versions
case "$target" in
*cygwin*) V_INCLS="$V_INCLS -I./cygwin-includes";
esac
dnl define -D__USE_BSD -D__FAVOR_BSD -D__USE_MISC -D__WIN32 for windows
case "$target" in
*cygwin*) V_DEFINES="$V_DEFINES -D__USE_BSD -D__FAVOR_BSD -D__USE_MISC -D__WIN32";
esac
dnl setting the correct PCAP_LDLIBS for windows
V_PCAP_LDLIBS="-lpcap";
case "$target" in
*cygwin*) V_PCAP_LDLIBS="-lwpcap";
esac
dnl define _BSD_SOURCE for libc-2
if [[ -f /lib/libc-2* ]]; then
V_DEFINES="$V_DEFINES -D_BSD_SOURCE"
fi
AC_SUBST(V_CCOPT)
AC_SUBST(V_INCLS)
AC_SUBST(V_DEFINES)
AC_SUBST(V_PCAP_LDLIBS)
AC_OUTPUT(Makefile)
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