diff options
Diffstat (limited to 'src/sed/config/getline.m4')
| -rw-r--r-- | src/sed/config/getline.m4 | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/sed/config/getline.m4 b/src/sed/config/getline.m4 new file mode 100644 index 0000000..ff8b5f4 --- /dev/null +++ b/src/sed/config/getline.m4 @@ -0,0 +1,41 @@ +#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 +]) |