From 041d1ea37802bf7178a31a53f96c26efa6b8fb7b Mon Sep 17 00:00:00 2001 From: James Date: Fri, 16 Nov 2012 10:41:01 +0000 Subject: fish --- m4/getdelim.m4 | 90 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 m4/getdelim.m4 (limited to 'm4/getdelim.m4') diff --git a/m4/getdelim.m4 b/m4/getdelim.m4 new file mode 100644 index 0000000..4beb150 --- /dev/null +++ b/m4/getdelim.m4 @@ -0,0 +1,90 @@ +# getdelim.m4 serial 6 + +dnl Copyright (C) 2005-2007, 2009-2010 Free Software Foundation, Inc. +dnl +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_PREREQ([2.59]) + +AC_DEFUN([gl_FUNC_GETDELIM], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + + dnl Persuade glibc to declare getdelim(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_DECLS_ONCE([getdelim]) + + AC_CHECK_FUNCS_ONCE([getdelim]) + if test $ac_cv_func_getdelim = yes; then + dnl Found it in some library. Verify that it works. + AC_CACHE_CHECK([for working getdelim function], [gl_cv_func_working_getdelim], + [echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +# include +# include +# include + int main () + { + FILE *in = fopen ("./conftest.data", "r"); + if (!in) + return 1; + { + /* Test result for a NULL buffer and a zero size. + Based on a test program from Karl Heuer. */ + char *line = NULL; + size_t siz = 0; + int len = getdelim (&line, &siz, '\n', in); + if (!(len == 4 && line && strcmp (line, "foo\n") == 0)) + return 1; + } + { + /* Test result for a NULL buffer and a non-zero size. + This crashes on FreeBSD 8.0. */ + char *line = NULL; + size_t siz = (size_t)(~0) / 4; + if (getdelim (&line, &siz, '\n', in) == -1) + return 1; + } + return 0; + } + ]])], [gl_cv_func_working_getdelim=yes] dnl The library version works. + , [gl_cv_func_working_getdelim=no] dnl The library version does NOT work. + , dnl We're cross compiling. Assume it works on glibc2 systems. + [AC_EGREP_CPP([Lucky GNU user], + [ +#include +#ifdef __GNU_LIBRARY__ + #if (__GLIBC__ >= 2) + Lucky GNU user + #endif +#endif + ], + [gl_cv_func_working_getdelim=yes], + [gl_cv_func_working_getdelim=no])] + )]) + else + gl_cv_func_working_getdelim=no + fi + + if test $ac_cv_have_decl_getdelim = no; then + HAVE_DECL_GETDELIM=0 + fi + + if test $gl_cv_func_working_getdelim = no; then + if test $ac_cv_func_getdelim = yes; then + REPLACE_GETDELIM=1 + fi + AC_LIBOBJ([getdelim]) + gl_PREREQ_GETDELIM + fi +]) + +# Prerequisites of lib/getdelim.c. +AC_DEFUN([gl_PREREQ_GETDELIM], +[ + AC_CHECK_FUNCS([flockfile funlockfile]) + AC_CHECK_DECLS([getc_unlocked]) +]) -- cgit v1.2.3