+dnl =================================================================
+dnl Support for thread-safe versions of gethostbyaddr, gethostbyname,
+dnl gmtime and localtime
+dnl =================================================================
+
+dnl Next line needed to find the gethost*_r functions on Solaris
+AC_CHECK_LIB(nsl, gethostbyname)
+
+AC_CHECK_FUNC(gethostbyaddr_r, [
+ AC_MSG_CHECKING([signature of gethostbyaddr_r])
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent *h, *hp;
+ char *a, *b;
+ int l, bl, t, e;
+ (void) gethostbyaddr_r(a, l, t, h, b, bl, &hp, &e)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYADDR_R_8_ARGS)
+ AC_MSG_RESULT([8 args])
+ ], [
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent *h;
+ char *a, *b;
+ int l, bl, t, e;
+ (void) gethostbyaddr_r(a, l, t, h, b, bl, &e)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYADDR_R_7_ARGS)
+ AC_MSG_RESULT([7 args])
+ ], [
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent_data *d;
+ struct hostent *h;
+ char a,
+ int l, t;
+ (void) gethostbyaddr_r(a, l, t, h, d)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYADDR_R_5_ARGS)
+ AC_MSG_RESULT([5 args])
+ ], [
+ AC_MSG_RESULT(unrecognised)
+ ])
+ ])
+ ])
+], [
+ AC_MSG_RESULT(no)
+])
+
+AC_CHECK_FUNC(gethostbyname_r, [
+ AC_MSG_CHECKING([signature of gethostbyname_r])
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent *h, *r;
+ char *n, *b;
+ int bl, e;
+ (void) gethostbyname_r(n, h, b, bl, &r, &e)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARGS)
+ AC_MSG_RESULT([6 args])
+ ], [
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent *h;
+ char *n, *b;
+ int bl, e;
+ (void) gethostbyname_r(n, h, b, bl, &e)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARGS)
+ AC_MSG_RESULT([5 args])
+ ], [
+ AC_TRY_COMPILE([
+# include <netdb.h>
+ ], [
+ struct hostent_data *d;
+ struct hostent *h;
+ char *n,
+ (void) gethostbyname_r(n, h, d)
+ ], [
+ AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARGS)
+ AC_MSG_RESULT([3 args])
+ ], [
+ AC_MSG_RESULT(unrecognised)
+ ])
+ ])
+ ])
+], [
+ AC_MSG_RESULT(no)
+])
+
+AC_CHECK_FUNC(gmtime_r, [
+ AC_MSG_CHECKING([signature of gmtime_r])
+ AC_TRY_COMPILE([
+# include <time.h>
+ ], [
+ struct time *t;
+ struct tm *tm;
+ (void) gmtime_r(t, tm)
+ ], [
+ AC_MSG_RESULT(ok)
+ AC_DEFINE(HAVE_GMTIME_R)
+ ], [
+ AC_MSG_RESULT(unrecognised)
+ ])
+], [
+ AC_MSG_RESULT(no)
+])
+
+AC_CHECK_FUNC(localtime_r, [
+ AC_MSG_CHECKING([signature of localtime_r])
+ AC_TRY_COMPILE([
+# include <time.h>
+ ], [
+ struct time *t;
+ struct tm *tm;
+ (void) localtime_r(t, tm)
+ ], [
+ AC_MSG_RESULT(ok)
+ AC_DEFINE(HAVE_LOCALTIME_R)
+ ], [
+ AC_MSG_RESULT(unrecognised)
+ ])
+], [
+ AC_MSG_RESULT(no)
+])
+
+dnl =================================================================
+dnl Solaris specific
+dnl FIXME: Not tested on Solaris yet...
+dnl =================================================================
+
+
+SOCKET_LIB=
+
+case "$host" in
+*-solaris*) SOCKET_LIB="-lsocket -lnsl"
+ AC_DEFINE(__EXTENSIONS__)
+ if test "$GCC" = "yes"; then
+ # Set a GCC specific switch:
+ # This compiler switch makes Solaris thread-safe
+ PTHREAD_LIB=
+ SPECIAL_CFLAGS="-pthreads"
+ else
+ # What do we do without GCC? Guess this:
+ SPECIAL_CFLAGS="-D_REENTRANT"
+ fi
+;;
+esac
+
+AC_SUBST(SOCKET_LIB)
+
+dnl =================================================================
+dnl OS/2 specific
+dnl =================================================================
+
+case "$host" in
+*-os2-emx*) SOCKET_LIB=-lsocket
+;;
+esac
+
+AC_SUBST(SOCKET_LIB)
+
+dnl =================================================================
+dnl AmigaOS specific
+dnl =================================================================
+
+AMIGAOS_ONLY=#
+
+case "$host" in
+*-amigaos) AMIGAOS_ONLY=
+;;
+esac
+
+AC_SUBST(AMIGAOS_ONLY)
+
+dnl =================================================================
+dnl Check for standard compiler stuff
+dnl =================================================================
+
+AC_EXEEXT
+AC_OBJEXT
+AC_HEADER_STDC
+AC_C_CONST
+AC_TYPE_SIZE_T
+AC_CHECK_SIZEOF(int, 4)
+AC_CHECK_SIZEOF(char *, 4)
+AC_CHECK_SIZEOF(long, 4)
+AC_CHECK_SIZEOF(long long, 8)
+AC_CHECK_SIZEOF(size_t, 4)
+
+dnl Checks for header files.
+dnl AC_HEADER_SYS_WAIT
+dnl AC_CHECK_HEADERS(fcntl.h limits.h malloc.h sys/time.h unistd.h)
+
+dnl Checks for library functions.
+dnl AC_TYPE_SIGNAL
+dnl AC_CHECK_FUNC(strstr)
+dnl bcopy and memmove are for PCRE
+AC_CHECK_FUNCS(strerror bcopy memmove)
+
+
+dnl =================================================================
+dnl Checks for libraries.
+dnl =================================================================
+dnl Note: Some systems may have the library but not the system header
+dnl file, so we must check for both.
+AC_CHECK_LIB(pcre, pcre_compile, [AC_CHECK_HEADER(pcre.h, [have_pcre=yes], [have_pcre=no])], [have_pcre=no])
+AC_CHECK_LIB(pcreposix, regcomp, [AC_CHECK_HEADER(pcreposix.h, [have_pcreposix=yes], [have_pcreposix=no])], [have_pcreposix=no], -lpcre)
+AC_CHECK_LIB(pcrs, pcrs_compile, [AC_CHECK_HEADER(pcrs.h, [have_pcrs=yes], [have_pcrs=no])], [have_pcrs=no])
+
+
+dnl =================================================================
+dnl Always defined
+dnl =================================================================
+
+AC_DEFINE(__MT__)
+
+dnl =================================================================
+dnl Features
+dnl =================================================================
+
+AC_ARG_ENABLE(toggle,
+[ --disable-toggle Don't support temporary disable],
+[if test $enableval = yes; then
+ AC_DEFINE(FEATURE_TOGGLE)
+fi],AC_DEFINE(FEATURE_TOGGLE))