Commit | Line | Data |
---|---|---|
b6aaeeac TTN |
1 | ## Autoconf macros for working with Guile. |
2 | ## | |
6e7d5622 | 3 | ## Copyright (C) 1998,2001, 2006 Free Software Foundation, Inc. |
b6aaeeac | 4 | ## |
73be1d9e MV |
5 | ## This library is free software; you can redistribute it and/or |
6 | ## modify it under the terms of the GNU Lesser General Public | |
7 | ## License as published by the Free Software Foundation; either | |
8 | ## version 2.1 of the License, or (at your option) any later version. | |
9 | ## | |
10 | ## This library is distributed in the hope that it will be useful, | |
b6aaeeac | 11 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
73be1d9e MV |
12 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | ## Lesser General Public License for more details. | |
14 | ## | |
15 | ## You should have received a copy of the GNU Lesser General Public | |
16 | ## License along with this library; if not, write to the Free Software | |
92205699 | 17 | ## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
b6aaeeac TTN |
18 | |
19 | ## Index | |
20 | ## ----- | |
21 | ## | |
22 | ## GUILE_PROGS -- set paths to Guile interpreter, config and tool programs | |
23 | ## GUILE_FLAGS -- set flags for compiling and linking with Guile | |
24 | ## GUILE_SITE_DIR -- find path to Guile "site" directory | |
25 | ## GUILE_CHECK -- evaluate Guile Scheme code and capture the return value | |
26 | ## GUILE_MODULE_CHECK -- check feature of a Guile Scheme module | |
27 | ## GUILE_MODULE_AVAILABLE -- check availability of a Guile Scheme module | |
28 | ## GUILE_MODULE_REQUIRED -- fail if a Guile Scheme module is unavailable | |
29 | ## GUILE_MODULE_EXPORTS -- check if a module exports a variable | |
30 | ## GUILE_MODULE_REQUIRED_EXPORT -- fail if a module doesn't export a variable | |
31 | ||
32 | ## Code | |
33 | ## ---- | |
34 | ||
8c4b7ca3 TTN |
35 | ## NOTE: Comments preceding an AC_DEFUN (starting from "Usage:") are massaged |
36 | ## into doc/ref/autoconf-macros.texi (see Makefile.am in that directory). | |
37 | ||
b6aaeeac TTN |
38 | # GUILE_PROGS -- set paths to Guile interpreter, config and tool programs |
39 | # | |
40 | # Usage: GUILE_PROGS | |
41 | # | |
8c4b7ca3 TTN |
42 | # This macro looks for programs @code{guile}, @code{guile-config} and |
43 | # @code{guile-tools}, and sets variables @var{GUILE}, @var{GUILE_CONFIG} and | |
44 | # @var{GUILE_TOOLS}, to their paths, respectively. If either of the first two | |
e12ed7aa | 45 | # is not found, signal error. |
b6aaeeac | 46 | # |
8c4b7ca3 | 47 | # The variables are marked for substitution, as by @code{AC_SUBST}. |
b6aaeeac TTN |
48 | # |
49 | AC_DEFUN([GUILE_PROGS], | |
50 | [AC_PATH_PROG(GUILE,guile) | |
51 | if test "$GUILE" = "" ; then | |
52 | AC_MSG_ERROR([guile required but not found]) | |
53 | fi | |
54 | AC_SUBST(GUILE) | |
55 | AC_PATH_PROG(GUILE_CONFIG,guile-config) | |
56 | if test "$GUILE_CONFIG" = "" ; then | |
57 | AC_MSG_ERROR([guile-config required but not found]) | |
58 | fi | |
59 | AC_SUBST(GUILE_CONFIG) | |
60 | AC_PATH_PROG(GUILE_TOOLS,guile-tools) | |
61 | AC_SUBST(GUILE_TOOLS) | |
62 | ]) | |
63 | ||
64 | # GUILE_FLAGS -- set flags for compiling and linking with Guile | |
65 | # | |
66 | # Usage: GUILE_FLAGS | |
67 | # | |
8c4b7ca3 TTN |
68 | # This macro runs the @code{guile-config} script, installed with Guile, to |
69 | # find out where Guile's header files and libraries are installed. It sets | |
70 | # two variables, @var{GUILE_CFLAGS} and @var{GUILE_LDFLAGS}. | |
b6aaeeac | 71 | # |
8c4b7ca3 TTN |
72 | # @var{GUILE_CFLAGS}: flags to pass to a C or C++ compiler to build code that |
73 | # uses Guile header files. This is almost always just a @code{-I} flag. | |
b6aaeeac | 74 | # |
8c4b7ca3 TTN |
75 | # @var{GUILE_LDFLAGS}: flags to pass to the linker to link a program against |
76 | # Guile. This includes @code{-lguile} for the Guile library itself, any | |
77 | # libraries that Guile itself requires (like -lqthreads), and so on. It may | |
78 | # also include a @code{-L} flag to tell the compiler where to find the | |
b6aaeeac TTN |
79 | # libraries. |
80 | # | |
8c4b7ca3 TTN |
81 | # The variables are marked for substitution, as by @code{AC_SUBST}. |
82 | # | |
83 | AC_DEFUN([GUILE_FLAGS], | |
84 | [AC_REQUIRE([GUILE_PROGS])dnl | |
85 | AC_MSG_CHECKING([libguile compile flags]) | |
86 | GUILE_CFLAGS="`$GUILE_CONFIG compile`" | |
87 | AC_MSG_RESULT([$GUILE_CFLAGS]) | |
88 | AC_MSG_CHECKING([libguile link flags]) | |
89 | GUILE_LDFLAGS="`$GUILE_CONFIG link`" | |
90 | AC_MSG_RESULT([$GUILE_LDFLAGS]) | |
2b9fe19f JB |
91 | AC_SUBST(GUILE_CFLAGS) |
92 | AC_SUBST(GUILE_LDFLAGS) | |
8c4b7ca3 | 93 | ]) |
d0001215 | 94 | |
b6aaeeac TTN |
95 | # GUILE_SITE_DIR -- find path to Guile "site" directory |
96 | # | |
97 | # Usage: GUILE_SITE_DIR | |
98 | # | |
99 | # This looks for Guile's "site" directory, usually something like | |
8c4b7ca3 | 100 | # PREFIX/share/guile/site, and sets var @var{GUILE_SITE} to the path. |
b6aaeeac TTN |
101 | # Note that the var name is different from the macro name. |
102 | # | |
8c4b7ca3 | 103 | # The variable is marked for substitution, as by @code{AC_SUBST}. |
b6aaeeac TTN |
104 | # |
105 | AC_DEFUN([GUILE_SITE_DIR], | |
106 | [AC_REQUIRE([GUILE_PROGS])dnl | |
107 | AC_MSG_CHECKING(for Guile site directory) | |
108 | GUILE_SITE=`[$GUILE_CONFIG] info pkgdatadir`/site | |
109 | AC_MSG_RESULT($GUILE_SITE) | |
110 | AC_SUBST(GUILE_SITE) | |
111 | ]) | |
112 | ||
113 | # GUILE_CHECK -- evaluate Guile Scheme code and capture the return value | |
114 | # | |
115 | # Usage: GUILE_CHECK_RETVAL(var,check) | |
116 | # | |
8c4b7ca3 TTN |
117 | # @var{var} is a shell variable name to be set to the return value. |
118 | # @var{check} is a Guile Scheme expression, evaluated with "$GUILE -c", and | |
b6aaeeac TTN |
119 | # returning either 0 or non-#f to indicate the check passed. |
120 | # Non-0 number or #f indicates failure. | |
121 | # Avoid using the character "#" since that confuses autoconf. | |
122 | # | |
123 | AC_DEFUN([GUILE_CHECK], | |
124 | [AC_REQUIRE([GUILE_PROGS]) | |
125 | $GUILE -c "$2" > /dev/null 2>&1 | |
126 | $1=$? | |
127 | ]) | |
128 | ||
129 | # GUILE_MODULE_CHECK -- check feature of a Guile Scheme module | |
130 | # | |
131 | # Usage: GUILE_MODULE_CHECK(var,module,featuretest,description) | |
132 | # | |
8c4b7ca3 TTN |
133 | # @var{var} is a shell variable name to be set to "yes" or "no". |
134 | # @var{module} is a list of symbols, like: (ice-9 common-list). | |
135 | # @var{featuretest} is an expression acceptable to GUILE_CHECK, q.v. | |
136 | # @var{description} is a present-tense verb phrase (passed to AC_MSG_CHECKING). | |
b6aaeeac TTN |
137 | # |
138 | AC_DEFUN([GUILE_MODULE_CHECK], | |
139 | [AC_MSG_CHECKING([if $2 $4]) | |
140 | GUILE_CHECK($1,(use-modules $2) (exit ((lambda () $3)))) | |
141 | if test "$$1" = "0" ; then $1=yes ; else $1=no ; fi | |
142 | AC_MSG_RESULT($$1) | |
d0001215 TTN |
143 | ]) |
144 | ||
b6aaeeac TTN |
145 | # GUILE_MODULE_AVAILABLE -- check availability of a Guile Scheme module |
146 | # | |
147 | # Usage: GUILE_MODULE_AVAILABLE(var,module) | |
148 | # | |
8c4b7ca3 TTN |
149 | # @var{var} is a shell variable name to be set to "yes" or "no". |
150 | # @var{module} is a list of symbols, like: (ice-9 common-list). | |
b6aaeeac TTN |
151 | # |
152 | AC_DEFUN([GUILE_MODULE_AVAILABLE], | |
153 | [GUILE_MODULE_CHECK($1,$2,0,is available) | |
d0001215 TTN |
154 | ]) |
155 | ||
b6aaeeac TTN |
156 | # GUILE_MODULE_REQUIRED -- fail if a Guile Scheme module is unavailable |
157 | # | |
158 | # Usage: GUILE_MODULE_REQUIRED(symlist) | |
159 | # | |
8c4b7ca3 TTN |
160 | # @var{symlist} is a list of symbols, WITHOUT surrounding parens, |
161 | # like: ice-9 common-list. | |
b6aaeeac TTN |
162 | # |
163 | AC_DEFUN([GUILE_MODULE_REQUIRED], | |
164 | [GUILE_MODULE_AVAILABLE(ac_guile_module_required, ($1)) | |
d0001215 TTN |
165 | if test "$ac_guile_module_required" = "no" ; then |
166 | AC_MSG_ERROR([required guile module not found: ($1)]) | |
167 | fi | |
168 | ]) | |
169 | ||
b6aaeeac TTN |
170 | # GUILE_MODULE_EXPORTS -- check if a module exports a variable |
171 | # | |
172 | # Usage: GUILE_MODULE_EXPORTS(var,module,modvar) | |
173 | # | |
8c4b7ca3 TTN |
174 | # @var{var} is a shell variable to be set to "yes" or "no". |
175 | # @var{module} is a list of symbols, like: (ice-9 common-list). | |
176 | # @var{modvar} is the Guile Scheme variable to check. | |
b6aaeeac TTN |
177 | # |
178 | AC_DEFUN([GUILE_MODULE_EXPORTS], | |
179 | [GUILE_MODULE_CHECK($1,$2,$3,exports `$3') | |
180 | ]) | |
181 | ||
182 | # GUILE_MODULE_REQUIRED_EXPORT -- fail if a module doesn't export a variable | |
183 | # | |
184 | # Usage: GUILE_MODULE_REQUIRED_EXPORT(module,modvar) | |
185 | # | |
8c4b7ca3 TTN |
186 | # @var{module} is a list of symbols, like: (ice-9 common-list). |
187 | # @var{modvar} is the Guile Scheme variable to check. | |
b6aaeeac TTN |
188 | # |
189 | AC_DEFUN([GUILE_MODULE_REQUIRED_EXPORT], | |
190 | [GUILE_MODULE_EXPORTS(guile_module_required_export,$1,$2) | |
191 | if test "$guile_module_required_export" = "no" ; then | |
192 | AC_MSG_ERROR([module $1 does not export $2; required]) | |
193 | fi | |
194 | ]) | |
195 | ||
196 | ## guile.m4 ends here |