diff options
Diffstat (limited to 'ares/m4')
| -rw-r--r-- | ares/m4/cares-override.m4 | 20 | ||||
| -rw-r--r-- | ares/m4/cares-system.m4 | 76 |
2 files changed, 94 insertions, 2 deletions
diff --git a/ares/m4/cares-override.m4 b/ares/m4/cares-override.m4 index 9377adba9..ea5b55362 100644 --- a/ares/m4/cares-override.m4 +++ b/ares/m4/cares-override.m4 @@ -3,7 +3,7 @@ #*************************************************************************** # File version for 'aclocal' use. Keep it a single number. -# serial 1 +# serial 2 dnl CARES_OVERRIDE_AUTOCONF dnl ------------------------------------------------- @@ -39,7 +39,8 @@ m4_define([AC_LANG_PROGRAM(C)], int main (void) { $2 -; return 0; + ; + return 0; }]) dnl Override Autoconf's AC_LANG_CALL (C) @@ -84,4 +85,19 @@ choke me #endif ], [return $1 ();])]) +dnl Override Autoconf's PATH_SEPARATOR check +dnl ------------------------------------------------- +dnl This is done to ensure that the same check is +dnl used across different Autoconf versions and to +dnl allow us to use this macro early enough in the +dnl configure script. + +m4_define([_AS_PATH_SEPARATOR_PREPARE], +[CARES_CHECK_PATH_SEPARATOR +m4_define([$0],[])]) + +m4_define([_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR], +[CARES_CHECK_PATH_SEPARATOR +m4_define([$0],[])]) + diff --git a/ares/m4/cares-system.m4 b/ares/m4/cares-system.m4 new file mode 100644 index 000000000..278140160 --- /dev/null +++ b/ares/m4/cares-system.m4 @@ -0,0 +1,76 @@ +#*************************************************************************** +# $Id$ +# +# Copyright (C) 2008 by Daniel Stenberg et al +# +# Permission to use, copy, modify, and distribute this software and its +# documentation for any purpose and without fee is hereby granted, provided +# that the above copyright notice appear in all copies and that both that +# copyright notice and this permission notice appear in supporting +# documentation, and that the name of M.I.T. not be used in advertising or +# publicity pertaining to distribution of the software without specific, +# written prior permission. M.I.T. makes no representations about the +# suitability of this software for any purpose. It is provided "as is" +# without express or implied warranty. +# +#*************************************************************************** + +# File version for 'aclocal' use. Keep it a single number. +# serial 1 + + +dnl CARES_CHECK_PATH_SEPARATOR +dnl ------------------------------------------------- +dnl Check and compute the path separator for us. This +dnl path separator is the symbol used to diferentiate +dnl or separate paths inside the PATH environment var. + +AC_DEFUN([CARES_CHECK_PATH_SEPARATOR], [ + if test -z "$cares_cv_PATH_SEPARATOR"; then + if test -z "$PATH"; then + AC_MSG_ERROR([PATH not set. Cannot continue without PATH being set.]) + fi + dnl Directory count in PATH when using a colon separator. + tst_dirs_col=0 + tst_save_IFS=$IFS; IFS=':' + for tst_dir in $PATH; do + IFS=$tst_save_IFS + test -d "$tst_dir" && tst_dirs_col=`expr $tst_dirs_col + 1` + done + IFS=$tst_save_IFS + dnl Directory count in PATH when using a semicolon separator. + tst_dirs_sem=0 + tst_save_IFS=$IFS; IFS=';' + for tst_dir in $PATH; do + IFS=$tst_save_IFS + test -d "$tst_dir" && tst_dirs_sem=`expr $tst_dirs_sem + 1` + done + IFS=$tst_save_IFS + if test $tst_dirs_sem -eq $tst_dirs_col; then + dnl When both counting methods give the same result we do not want to + dnl chose one over the other, and consider auto-detection not possible. + if test -z "$PATH_SEPARATOR"; then + dnl Stop dead until user provides PATH_SEPARATOR definition. + AC_MSG_ERROR([PATH_SEPARATOR not set. Cannot continue without it.]) + fi + else + dnl Separator with the greater directory count is the auto-detected one. + if test $tst_dirs_sem -gt $tst_dirs_col; then + tst_auto_separator=';' + PATH_SEPARATOR=';' + else + tst_auto_separator=':' + PATH_SEPARATOR=':' + fi + if test -z "$PATH_SEPARATOR"; then + dnl Simply use the auto-detected one when not already set. + PATH_SEPARATOR="$tst_auto_separator" + fi + fi + cares_cv_PATH_SEPARATOR="$PATH_SEPARATOR" + fi + AC_SUBST([PATH_SEPARATOR]) + AC_SUBST([PATH]) +]) + + |