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AC_CHECK_FUNC(asprintf, [
have_asprintf="yes"
AC_DEFINE(HAVE_ASPRINTF, 1, "Whether we have asprintf")], [
have_asprintf="no"
AC_SUBST(ASPRINTF, "asprintf.c")])
AC_MSG_CHECKING(whether snprintf returns something useful)
AC_CACHE_VAL(ac_cv_snprintf_useful_ret, [
AC_TRY_RUN([
#include <stdio.h>
AC_TRY_RUN([
#include <stdio.h>
int
main()
{
return (snprintf(NULL, 0, "asd") == 3 ? 0 : 1);
}],
snprintf_return_useful="yes", snprintf_return_useful="no",
snprintf_return_useful="no")
AC_MSG_RESULT($snprintf_return_useful)
int
main()
{
return (snprintf(NULL, 0, "asd") == 3 ? 0 : 1);
}],
ac_cv_snprintf_useful_ret="yes",
ac_cv_snprintf_useful_ret="no",
ac_cv_snprintf_useful_ret="no")])
AC_MSG_RESULT($ac_cv_snprintf_useful_ret)
test x"$have_asprintf" != x"yes" -a x"$snprintf_return_useful" != x"yes" && \
test x"$have_asprintf" != x"yes" -a x"$ac_cv_snprintf_useful_ret" != x"yes" && \
AC_MSG_ERROR(No asprintf and no snprintf returning required space!)
AC_MSG_CHECKING(whether we have IPv6 support)
AC_CACHE_VAL(ac_cv_have_ipv6, [
AC_TRY_RUN([
#include <stdlib.h>
#include <string.h>
AC_TRY_RUN([
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
int
main()
{
int fd;
struct sockaddr_in6 addr;
int
main()
{
int fd;
struct sockaddr_in6 addr;
fd = socket(AF_INET6, SOCK_STREAM, 0);
fd = socket(AF_INET6, SOCK_STREAM, 0);
/*
/* Do something with it to prevent an error due to -Werror */
memset(&addr, 0, sizeof(addr));
* Do something with it to prevent an error due to
* -Werror
*/
memset(&addr, 0, sizeof(addr));
exit(fd >= 0 ? 0 : 1);
}],
have_ipv6="yes", have_ipv6="no", have_ipv6="no")
AC_MSG_RESULT($have_ipv6)
test x"$have_ipv6" = x"yes" && \
exit(fd >= 0 ? 0 : 1);
}],
ac_cv_have_ipv6="yes",
ac_cv_have_ipv6="no",
ac_cv_have_ipv6="no")])
AC_MSG_RESULT($ac_cv_have_ipv6)
test x"$ac_cv_have_ipv6" = x"yes" && \
AC_DEFINE(HAVE_IPV6, 1, "Whether we have IPv6 support")
test x"$cross_compiling" != x"yes" && AC_SUBST(TESTS, "tests")
BUILDSYS_TOUCH_DEPS
AC_SUBST(PACKAGE, objfw)
|