third-party libs

third-party/curl-7.21.4/m4/curl-system.m4

@@ -0,0 +1,88 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at http://curl.haxx.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+#***************************************************************************
+
+# File version for 'aclocal' use. Keep it a single number.
+# serial 3
+
+
+dnl CURL_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([CURL_CHECK_PATH_SEPARATOR], [
+  if test -z "$curl_cv_PATH_SEPARATOR"; then
+    if test -z "$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 $tst_dirs_col; then
+        tst_auto_separator=';'
+      else
+        tst_auto_separator=':'
+      fi
+      if test -z "$PATH_SEPARATOR"; then
+        dnl Simply use the auto-detected one when not already set.
+        PATH_SEPARATOR="$tst_auto_separator"
+      fi
+    fi
+    curl_cv_PATH_SEPARATOR="$PATH_SEPARATOR"
+  fi
+  AC_SUBST([PATH_SEPARATOR])
+  AC_SUBST([PATH])
+])
+
+
+dnl CURL_CHECK_PATH_SEPARATOR_REQUIRED
+dnl -------------------------------------------------
+dnl Use this to ensure that the path separator check
+dnl macro is only expanded and included once.
+
+AC_DEFUN([CURL_CHECK_PATH_SEPARATOR_REQUIRED], [
+  AC_REQUIRE([CURL_CHECK_PATH_SEPARATOR])dnl
+])
+