boinc/m4/boinc_getsockopt.m4

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AC_DEFUN([BOINC_GETSOCKOPT_TYPE],[
AC_LANG_PUSH(C)
AC_CHECK_HEADERS([windows.h])
if test "${ac_cv_header_windows_h}" = "yes" ; then
ac_includes_default="${ac_includes_default}
#include <windows.h>
"
fi
AC_CHECK_HEADERS([sys/socket.h])
if test "${ac_cv_header_sys_socket_h}" = "yes" ; then
ac_includes_default="${ac_includes_default}
#include <sys/socket.h>
"
fi
AC_CHECK_TYPES([socklen_t])
B_SV_CFLAGS="${CFLAGS}"
B_SV_CPPFLAGS="${CPPFLAGS}"
CPPFLAGS=""
if test "${ac_cv_c_compiler_gnu}" = "yes" ; then
CFLAGS="${CFLAGS} -Werror -pedantic"
fi
AC_CACHE_CHECK([type of getsockopt() parameter five],
[boinc_cv_getsockopt_type],
[
if test "${ac_cv_type_socklen_t}" = "yes" ; then
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
#define CONFIG_TEST
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
]],
[
socklen_t l;
return getsockopt(0,0,0,(void *)0,&l);
])],
[
boinc_cv_getsockopt_type="socklen_t"
]
)
fi
if test -z "${boinc_cv_getsockopt_type}"; then
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
#define CONFIG_TEST
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
]],
[
size_t l;
return getsockopt(0,0,0,(void *)0,&l);
])],
[
boinc_cv_getsockopt_type="size_t"
],
[
boinc_cv_getsockopt_type="int"
]
)
fi
])
CFLAGS="${B_SV_CFLAGS}"
CPPFLAGS="${B_SV_CPPFLAGS}"
AC_DEFINE_UNQUOTED([BOINC_SOCKLEN_T],[${boinc_cv_getsockopt_type}],[Define to the type pointed to by the 5th parameter of getsockopt])
AC_LANG_POP(C)
])