2 dnl AUTHOR: Francesco Chemolli
4 dnl SQUID Web Proxy Cache http://www.squid-cache.org/
5 dnl ----------------------------------------------------------
6 dnl Squid is the result of efforts by numerous individuals from
7 dnl the Internet community; see the CONTRIBUTORS file for full
8 dnl details. Many organizations have provided support for Squid's
9 dnl development; see the SPONSORS file for full details. Squid is
10 dnl Copyrighted (C) 2001 by the Regents of the University of
11 dnl California; see the COPYRIGHT file for full details. Squid
12 dnl incorporates software developed and/or copyrighted by other
13 dnl sources; see the CREDITS file for full details.
15 dnl This program is free software; you can redistribute it and/or modify
16 dnl it under the terms of the GNU General Public License as published by
17 dnl the Free Software Foundation; either version 2 of the License, or
18 dnl (at your option) any later version.
20 dnl This program is distributed in the hope that it will be useful,
21 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
22 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 dnl GNU General Public License for more details.
25 dnl You should have received a copy of the GNU General Public License
26 dnl along with this program; if not, write to the Free Software
27 dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
29 dnl save main environment variables to variables to the namespace defined by the
30 dnl first argument (prefix)
31 dnl e.g. SQUID_SAVEFLAGS([foo]) will save CFLAGS to foo_CFLAGS etc.
32 dnl Saved variables are:
33 dnl CFLAGS, CXXFLAGS, LDFLAGS, LIBS plus any variables specified as
35 AC_DEFUN([SQUID_STATE_SAVE],[
37 $1_CXXFLAGS="${CXXFLAGS}"
38 $1_LDFLAGS="${LDFLAGS}"
42 $1_squid_saved_vars="$2"
43 for squid_util_var_tosave in $2
45 squid_util_var_tosave2="$1_${squid_util_var_tosave}"
46 eval "${squid_util_var_tosave2}=\"${squid_util_var_tosave}\""
50 dnl commit the state changes: deleting the temporary state defined in SQUID_STATE_SAVE
51 dnl with the same prefix. It's not necessary to specify the extra variables passed
52 dnl to SQUID_STATE_SAVE again, they will be automatically reclaimed.
53 AC_DEFUN([SQUID_STATE_COMMIT],[
60 for squid_util_var_tosave in $$1_squid_saved_vars
62 unset ${squid_util_var_tosave2}
66 dnl rollback state to the call of SQUID_STATE_SAVE with the same namespace argument.
67 dnl all temporary state will be cleared, including the custom variables specified
68 dnl at call time. It's not necessary to explicitly name them, they will be automatically
70 AC_DEFUN([SQUID_STATE_ROLLBACK],[
72 CXXFLAGS="${$1_CXXFLAGS}"
73 LDFLAGS="${$1_LDFLAGS}"
77 for squid_util_var_tosave in $$1_squid_saved_vars
79 squid_util_var_tosave2="$1_${squid_util_var_tosave}"
80 eval "${squid_util_var_tosave}=\$${squid_util_var_tosave2}"
82 SQUID_STATE_COMMIT($1)
86 dnl look for modules in the base-directory supplied as argument.
87 dnl fill-in the variable pointed-to by the second argument with the
88 dnl space-separated list of modules
89 AC_DEFUN([SQUID_LOOK_FOR_MODULES],[
92 module="`basename $dir`"
93 if test -d "$dir" && test "$module" != CVS; then
99 dnl remove duplicates out of a list.
100 dnl dnl argument is the name of a variable to be checked and cleaned up
101 AC_DEFUN([SQUID_CLEANUP_MODULES_LIST],[
102 squid_cleanup_tmp_outlist=""
103 for squid_cleanup_tmp in $$1
105 squid_cleanup_tmp_dupe=0
106 for squid_cleanup_tmp2 in $squid_cleanup_tmp_outlist
108 if test "$squid_cleanup_tmp" = "$squid_cleanup_tmp2"; then
109 squid_cleanup_tmp_dupe=1
113 if test $squid_cleanup_tmp_dupe -eq 0; then
114 squid_cleanup_tmp_outlist="${squid_cleanup_tmp_outlist} $squid_cleanup_tmp"
117 $1=$squid_cleanup_tmp_outlist
118 unset squid_cleanup_tmp_outlist
119 unset squid_cleanup_tmp_dupe
120 unset squid_cleanup_tmp2
121 unset squid_cleanup_tmp
124 dnl check that all the modules supplied as a whitespace-separated list (second
125 dnl argument) exist as members of the basedir passed as first argument
126 dnl call AC_MESG_ERROR if any module does not exist. Also sets individual variables
127 dnl named $2_modulename to value "yes"
128 dnl e.g. SQUID_CHECK_EXISTING_MODULES([$srcdir/src/fs],[foo_module_candidates])
129 dnl where $foo_module_candidates is "foo bar gazonk"
130 dnl checks whether $srcdir/src/fs/{foo,bar,gazonk} exist and are all dirs
131 dnl AND sets $foo_module_candidates_foo, $foo_module_candidates_bar
132 dnl and $foo_module_candidates_gazonk to "yes"
133 AC_DEFUN([SQUID_CHECK_EXISTING_MODULES],[
134 for squid_module_check_exist_tmp in $$2
136 if test -d $1/$squid_module_check_exist_tmp
138 eval "$2_$squid_module_check_exist_tmp='yes'"
139 #echo "defining $2_$squid_module_check_exist_tmp"
141 AC_MSG_ERROR([$squid_module_check_exist_tmp not found in $1])
146 dnl lowercases the contents of the variable whose name is passed by argument
147 AC_DEFUN([SQUID_TOLOWER_VAR_CONTENTS],[
148 $1=`echo $$1|tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
151 dnl uppercases the contents of the variable whose name is passed by argument
152 AC_DEFUN([SQUID_TOUPPER_VAR_CONTENTS],[
153 $1=`echo $$1|tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
156 dnl like AC_DEFINE_UNQUOTED, but it defines the value to 0 or 1 using well-known textual
158 dnl 1: "yes", "true", 1
159 dnl 0: "no" , "false", 0, ""
160 dnl aborts with an error for unknown values
161 AC_DEFUN([SQUID_DEFINE_UNQUOTED],[
164 yes|true|1) squid_tmp_define="1" ;;
165 no|false|0) squid_tmp_define="0" ;;
166 *) AC_MSG_ERROR([SQUID_DEFINE[]_UNQUOTED: unrecognized value: $2]) ;;
169 [AC_DEFINE_UNQUOTED([$1], [$squid_tmp_define],[$3])],
170 [AC_DEFINE_UNQUOTED([$1], [$squid_tmp_define])]
172 unset squid_tmp_define
175 dnl aborts with an error specified as the second argument if the first argument doesn't
176 dnl contain either "yes" or "no"
177 AC_DEFUN([SQUID_YESNO],[
178 if test "$1" != "yes" -a "$1" != "no" ; then