3 dnl See if there's a working, system-supplied version of the getline function.
4 dnl We can't just do AC_REPLACE_FUNCS(getline) because some systems
5 dnl have a function by that name in -linet that doesn't have anything
6 dnl to do with the function we need.
7 AC_DEFUN(AM_FUNC_GETLINE,
9 am_getline_needs_run_time_check=no
10 AC_CHECK_FUNC(getline,
11 dnl Found it in some library. Verify that it works.
12 am_getline_needs_run_time_check=yes,
13 am_cv_func_working_getline=no)
14 if test $am_getline_needs_run_time_check = yes; then
15 AC_CHECK_HEADERS(string.h)
16 AC_CACHE_CHECK([for working getline function], am_cv_func_working_getline,
17 [echo fooN |tr -d '\012'|tr N '\012' > conftest.data
20 # include <sys/types.h>
25 { /* Based on a test program from Karl Heuer. */
29 FILE *in = fopen ("./conftest.data", "r");
32 len = getline (&line, &siz, in);
33 exit ((len == 4 && line && strcmp (line, "foo\n") == 0) ? 0 : 1);
35 ], am_cv_func_working_getline=yes dnl The library version works.
36 , am_cv_func_working_getline=no dnl The library version does NOT work.
37 , am_cv_func_working_getline=no dnl We're cross compiling.
41 if test $am_cv_func_working_getline = no; then