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#serial 4
dnl See if there's a working, system-supplied version of the getline function.
dnl We can't just do AC_REPLACE_FUNCS(getline) because some systems
dnl have a function by that name in -linet that doesn't have anything
dnl to do with the function we need.
AC_DEFUN([AM_FUNC_GETLINE],
[dnl
am_getline_needs_run_time_check=no
AC_CHECK_FUNC(getline,
dnl Found it in some library. Verify that it works.
am_getline_needs_run_time_check=yes,
am_cv_func_working_getline=no)
if test $am_getline_needs_run_time_check = yes; then
AC_CACHE_CHECK([for working getline function], am_cv_func_working_getline,
[echo fooN |tr -d '\012'|tr N '\012' > conftest.data
AC_TRY_RUN([
# include <stdio.h>
# include <sys/types.h>
# include <string.h>
int main ()
{ /* Based on a test program from Karl Heuer. */
char *line = NULL;
size_t siz = 0;
int len;
FILE *in = fopen ("./conftest.data", "r");
if (!in)
return 1;
len = getline (&line, &siz, in);
exit ((len == 4 && line && strcmp (line, "foo\n") == 0) ? 0 : 1);
}
], am_cv_func_working_getline=yes dnl The library version works.
, am_cv_func_working_getline=no dnl The library version does NOT work.
, am_cv_func_working_getline=no dnl We're cross compiling.
)])
fi
if test $am_cv_func_working_getline = no; then
AC_LIBOBJ(getline)
fi
])
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