alive-2.0.5.tar.lz: alive-2.0.5/build-aux/snuggle.m4

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2.0.3_vs_2.0.4.

1 ## snuggle.m4 --- like guile.m4, but more portable 2 ## serial 19 3 ## 4 ## Copyright (C) 2011-2015, 2017, 2020 Thien-Thi Nguyen 5 ## 6 ## This program is free software; you can redistribute it and/or 7 ## modify it under the terms of the GNU General Public License as 8 ## published by the Free Software Foundation; either version 3, or 9 ## (at your option) any later version. 10 ## 11 ## This program is distributed in the hope that it will be useful, 12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of 13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 ## GNU General Public License for more details. 15 ## 16 ## You should have received a copy of the GNU General Public License 17 ## along with this program. If not, see <https://www.gnu.org/licenses/>. 18 19 ##: SNUGGLE_SET_SOFIXFLAGS([default-value]) 20 ## SOFIXFLAGS 21 ## 22 ## Set shell var @code{SOFIXFLAGS} and mark it for 23 ## substitution, as by @code{AC_SUBST}. 24 ## Its value is based on the @code{host_os} shell variable: 25 ## 26 ## @table @code 27 ## @item linux-gnu 28 ## no-la,no-symlinks 29 ## @end table 30 ## 31 ## If no matching @code{host_os} is found, use @code{default-value}. For 32 ## example, a conservative @code{default-value} would be @code{ln-s-lib}, 33 ## while a more optimistic one would be @code{no-la,no-symlinks}. If 34 ## @code{default-value} is not specified, it defaults to @code{ln-s-lib}. 35 ## 36 ## @xref{sofix}, and @xref{uninstall-sofixed}, for more info. 37 ## 38 AC_DEFUN([SNUGGLE_SET_SOFIXFLAGS],[ 39 AC_REQUIRE([AC_CANONICAL_HOST]) 40 AC_CACHE_CHECK([sofix flags],[host_cv_sofixflags], 41 [AS_CASE([$host_os], 42 [linux-gnu],[host_cv_sofixflags=no-la,no-symlinks], 43 [host_cv_sofixflags=m4_default_nblank_quoted([$1],[ln-s-lib])])]) 44 SOFIXFLAGS="$host_cv_sofixflags" 45 AC_SUBST([SOFIXFLAGS]) 46 ]) 47 48 ##: SNUGGLE_PROGS 49 ## GUILE GUILE_CONFIG GUILE_TOOLS 50 ## 51 ## Set paths to Guile interpreter, config and tool programs. 52 ## Look for programs @shellcommand{guile}, @shellcommand{guile-config} 53 ## and @shellcommand{guile-tools}, and set variables @code{GUILE}, 54 ## @code{GUILE_CONFIG} and @code{GUILE_TOOLS}, to their paths, respectively. 55 ## However, if any of those vars are set on the command-line 56 ## or in the environment, they take precedence. 57 ## If either of the first two is not found, signal error. 58 ## 59 ## Mark the variables for substitution, as by @code{AC_SUBST}. 60 ## 61 AC_DEFUN([SNUGGLE_PROGS],[ 62 dnl 63 AC_ARG_VAR([GUILE],[the Guile interpreter program])dnl 64 AS_IF([test x = x"$GUILE"],[AC_PATH_PROG([GUILE],[guile])]) 65 AS_IF([test x = x"$GUILE"], 66 [AC_MSG_ERROR([guile required but not found])]) 67 dnl 68 AC_ARG_VAR([GUILE_CONFIG],[the Guile configuration information script])dnl 69 AS_IF([test x = x"$GUILE_CONFIG"],[AC_PATH_PROG([GUILE_CONFIG],[guile-config])]) 70 AS_IF([test x = x"$GUILE_CONFIG"], 71 [AC_MSG_ERROR([guile-config required but not found])]) 72 dnl 73 AC_ARG_VAR([GUILE_TOOLS],[the Guile tools dispatcher program])dnl 74 AS_IF([test x = x"$GUILE_TOOLS"],[AC_PATH_PROG([GUILE_TOOLS],[guile-tools])]) 75 dnl 76 AC_SUBST([GUILE]) 77 AC_SUBST([GUILE_CONFIG]) 78 AC_SUBST([GUILE_TOOLS]) 79 ]) 80 81 ##: SNUGGLE_FLAGS 82 ## GUILE_CFLAGS GUILE_LDFLAGS 83 ## 84 ## Set flags for compiling and linking with Guile. 85 ## This macro runs the program @shellcommand{guile-config} 86 ## to find out where Guile's header files and libraries are installed. 87 ## It sets two variables, @code{GUILE_CFLAGS} and @code{GUILE_LDFLAGS}. 88 ## 89 ## @table @code 90 ## @item GUILE_CFLAGS 91 ## Flags to pass to a C or C++ compiler to build code that 92 ## uses Guile header files. This is almost always just a @code{-I} flag. 93 ## 94 ## @item GUILE_LDFLAGS 95 ## Flags to pass to the linker to link a program against Guile. 96 ## This includes @code{-lguile} for the Guile library itself, any 97 ## libraries that Guile itself requires (like -lqthreads), and so on. 98 ## It may also include a @code{-L} flag to tell the compiler 99 ## where to find the libraries. 100 ## @end table 101 ## 102 ## The variables are marked for substitution, as by @code{AC_SUBST}. 103 ## 104 AC_DEFUN([SNUGGLE_FLAGS],[ 105 AC_REQUIRE([SNUGGLE_PROGS])dnl 106 AC_CACHE_CHECK([libguile compile flags],[snuggle_cv_compile], 107 [snuggle_cv_compile=`$GUILE_CONFIG compile`]) 108 AC_CACHE_CHECK([libguile link flags],[snuggle_cv_link], 109 [snuggle_cv_link=`$GUILE_CONFIG link`]) 110 GUILE_CFLAGS="$snuggle_cv_compile" 111 GUILE_LDFLAGS="$snuggle_cv_link" 112 AC_SUBST([GUILE_CFLAGS]) 113 AC_SUBST([GUILE_LDFLAGS]) 114 ]) 115 116 ##: SNUGGLE_GUILE_LIBSITE_DIR(cache-var-prefix) 117 ## GUILE_LIBSITE 118 ## 119 ## Use Guile-BAUX program @shellcommand{re-prefixed-site-dirs} 120 ## to set shell-variable @code{@var{cache-var-prefix}_cv_minstroot}, 121 ## which is subsequently also copied to var @code{GUILE_LIBSITE}, 122 ## marked for substitution, as by @code{AC_SUBST}. 123 ## 124 AC_DEFUN([SNUGGLE_GUILE_LIBSITE_DIR],[ 125 AC_REQUIRE([SNUGGLE_PROGS]) 126 AC_CACHE_CHECK([module installation root dir],[$1_cv_minstroot],[ 127 __snuggle_saved_GUILE_LOAD_PATH="$GUILE_LOAD_PATH" 128 GUILE_LOAD_PATH= 129 eval `GUILE="$GUILE" \ 130 $ac_aux_dir/guile-baux/gbaux-do \ 131 re-prefixed-site-dirs "$GUILE_CONFIG" $1` 132 GUILE_LOAD_PATH="$__snuggle_saved_GUILE_LOAD_PATH" 133 AS_UNSET([__snuggle_saved_GUILE_LOAD_PATH]) 134 ]) 135 GUILE_LIBSITE="$][$1_cv_minstroot" 136 AC_SUBST([GUILE_LIBSITE]) 137 ])]) 138 139 ##: SNUGGLE_GUILE_SITE_CCACHE_DIR(cache-var-prefix) 140 ## GUILE_SITE_CCACHE 141 ## 142 ## Determine if Guile has @code{ccachedir} in its @code{%guile-build-info} 143 ## alist. If so, reprefix the value to start with @code{$libdir} and end 144 ## with @code{site-ccache}, and copy to var @code{GUILE_SITE_CCACHE}, 145 ## marked for substitution, as by @code{AC_SUBST}. If not available, 146 ## the value is @code{no}. 147 ## 148 AC_DEFUN([SNUGGLE_GUILE_SITE_CCACHE_DIR],[ 149 AC_REQUIRE([SNUGGLE_PROGS]) 150 AC_CACHE_CHECK([Guile site ccache dir],[$1_cv_site_ccache_dir],[ 151 cat > conftest.scm <<EOF 152 (use-modules (srfi srfi-13)) 153 (display 154 (let ((libdir (assq-ref %guile-build-info 'libdir))) 155 (cond ((assq-ref %guile-build-info 'ccachedir) 156 => (lambda (ccachedir) 157 (string-append 158 "$" "{libdir}" 159 (substring ccachedir 160 (string-length libdir) 161 (string-contains ccachedir "ccache")) 162 "site-ccache"))) 163 (else "")))) 164 EOF 165 $1_cv_site_ccache_dir=$($GUILE -s conftest.scm 2>/dev/null) 166 AS_IF([test "$$1_cv_site_ccache_dir"],,[$1_cv_site_ccache_dir=no]) 167 ]) 168 AC_SUBST([GUILE_SITE_CCACHE],[$$1_cv_site_ccache_dir]) 169 ]) 170 171 ##: SNUGGLE_GUILE_TOOLS_EXISTSP(cache-var,program) 172 ## 173 ## Check if @shellcommand{guile-tools} lists @var{program}. If so, set 174 ## shell variable @var{cache-var} to @code{yes}, otherwise @code{no}. 175 ## 176 AC_DEFUN([SNUGGLE_GUILE_TOOLS_EXISTSP],[ 177 AC_REQUIRE([SNUGGLE_PROGS]) 178 AC_CACHE_CHECK([for "guile-tools $2"],[$1], 179 [AS_IF([$GUILE_TOOLS | grep "^$2$" 1>/dev/null 2>&1],[$1=yes],[$1=no])]) 180 ])]) 181 182 ##: SNUGGLE_CHECK(var,check) 183 ## 184 ## Evaluate Guile Scheme code and set a variable. 185 ## Set @var{var} to @code{yes} or @code{no} depending on the return 186 ## value of having @shellcommand{$GUILE -c} evaluate @var{check}. 187 ## 188 ## @var{check} is one or more Guile Scheme expressions, the last of which 189 ## should return either @code{0} (zero) or non-@code{#f} to indicate success. 190 ## Non-zero number or @code{#f} indicates failure. 191 ## This is conventionally achieved by wrapping the last expression in 192 ## @code{exit}. For example, @code{(foo) (bar) (exit (baz))}. 193 ## 194 ## Avoid using the character @samp{#} (hash) since that can confuse 195 ## Autoconf. You can use @samp{@@%:@@} (at-percent-colon-at), instead. 196 ## @xref{Quadrigraphs,,,autoconf}. 197 ## 198 AC_DEFUN([SNUGGLE_CHECK],[ 199 AC_REQUIRE([SNUGGLE_PROGS]) 200 AS_IF([$GUILE -c "$2" > /dev/null 2>&1], 201 [AS_VAR_SET([$1],[yes])], 202 [AS_VAR_SET([$1],[no])]) 203 ]) 204 205 ##: SNUGGLE_MODULE_CHECK(var,module,featuretest,description) 206 ## 207 ## Check feature of a Guile Scheme module. 208 ## Set @var{var} based on whether or not @var{module} supports @var{featuretest}. 209 ## @var{var} is a shell variable name to be set to @code{yes} or @code{no}. 210 ## Additionally, this value is cached in shell var @code{guile_cv_@var{var}}. 211 ## @var{module} is a list of symbols sans parens, like: @code{ice-9 common-list}. 212 ## @var{featuretest} is one or more Guile Scheme expressions, 213 ## the last of which should evaluate to zero or non-@code{#f} for success, 214 ## and non-zero or @code{#f} for failure. 215 ## Unlike for @code{SNUGGLE_CHECK}, you do not need to use @code{exit}. 216 ## @var{description} is a present-tense verb phrase to be passed to 217 ## @code{AC_MSG_CHECKING}. 218 ## 219 AC_DEFUN([SNUGGLE_MODULE_CHECK],[ 220 AS_VAR_PUSHDEF([cv],[guile_cv_$1])dnl 221 AC_CACHE_CHECK([if ($2) $4],[cv], 222 [SNUGGLE_CHECK([cv],[(use-modules ($2)) (exit ((lambda () $3)))])]) 223 AS_VAR_SET([$1],[$cv]) 224 AS_VAR_POPDEF([cv])dnl 225 ]) 226 227 ##: SNUGGLE_MODULE_AVAILABLE(module-name) 228 ## 229 ## Check availability of a Guile Scheme module. 230 ## @var{module-name} is a list of symbols, without surrounding parens, 231 ## like: @code{ice-9 common-list}. This sets the shell variable 232 ## @code{have_mod_@var{module-name}} to @code{yes} or @code{no}. 233 ## Additionally, this value is cached in shell var 234 ## @code{guile_cv_have_mod_@var{module-name}}. 235 ## In the shell variable names, any ``strange characters'' (e.g., hyphen) 236 ## in @var{module-name} are converted to underscore. 237 ## 238 AC_DEFUN([SNUGGLE_MODULE_AVAILABLE],[ 239 AS_VAR_PUSHDEF([var],[have_mod_$1])dnl 240 SNUGGLE_MODULE_CHECK(var,[$1],[0],[is available]) 241 AS_VAR_POPDEF([var])dnl 242 ]) 243 244 ##: SNUGGLE_CHECK_ICE9_OPTARGS(var) 245 ## 246 ## Check if module @code{(ice-9 optargs-kw)} is available. If so, set 247 ## shell var @var{var} to @code{no} (see why below). Otherwise, check if 248 ## module @code{(ice-9 optargs)} acts like @code{(ice-9 optargs-kw)}. 249 ## If so, set @var{var} to @code{yes}, otherwise set it to @code{no}. 250 ## Additionally, this value is cached in shell var @code{guile_cv_@var{var}}. 251 ## 252 ## Some versions of Guile provide a module @code{(ice-9 optargs)} that 253 ## acts like @code{(ice-9 optargs-kw)} (and subsequently omit the latter, 254 ## instead of providing both). Code that uses @code{(ice-9 optargs-kw)} 255 ## solely can be textually kludged to load @code{(ice-9 optargs)} in 256 ## these situations if @var{var} has value @code{yes} (and you @code{AC_SUBST}) 257 ## it. Here is a Makefile.am fragment that demonstrates the technique: 258 ## 259 ## @example 260 ## install-data-hook: 261 ## if test "$(need_optargs_kludge)" = yes ; then \ 262 ## sed s/optargs-kw/optargs/ foo.scm > TMP ; \ 263 ## mv TMP foo.scm ; \ 264 ## fi 265 ## @end example 266 ## 267 ## In this example, @var{var} is @code{need_optargs_kludge}. If it turns 268 ## out @code{(ice-9 optargs-kw)} is available, @code{need_optargs_kludge} 269 ## would have value @code{no}, and the kludge would neither be required nor 270 ## applied. 271 ## 272 AC_DEFUN([SNUGGLE_CHECK_ICE9_OPTARGS],[ 273 SNUGGLE_MODULE_AVAILABLE([ice-9 optargs-kw]) 274 AS_IF([test xyes = x"$have_mod_ice_9_optargs_kw"], 275 [$1=no], 276 [SNUGGLE_MODULE_CHECK([$1],[ice-9 optargs], 277 [(= 2 ((lambda* (a @%:@:optional b) b) 4 2))], 278 [acts like (ice-9 optargs-kw)])]) 279 ]) 280 281 ##: SNUGGLE_CHECK_META_SWITCH_MINUS_E_STRING(cache-var) 282 ## 283 ## Check if meta-switch invocation can handle @code{-e STRING}. 284 ## If so, set @var{cache-var} to @code{yes}, otherwise @code{no}. 285 ## 286 AC_DEFUN([SNUGGLE_CHECK_META_SWITCH_MINUS_E_STRING],[ 287 AC_REQUIRE([SNUGGLE_PROGS]) 288 AC_CACHE_CHECK([if meta-switch parsing handles -e STRING],[$1],[ 289 cat > conftest-dwms <<EOF 290 @%:@! $GUILE \\ 291 -e "(a b c)" -s 292 !@%:@ 293 (define-module (a b c) @%:@:export (main)) 294 (define (main args) (exit @%:@t)) 295 EOF 296 chmod +x conftest-dwms 297 AS_IF([./conftest-dwms 1>conftest-dwms.out 2>conftest-dwms.err], 298 [$1=yes], 299 [$1=no]) 300 ])]) 301 302 ##: SNUGGLE_GUILE_USER_PROVIDES(var,name) 303 ## 304 ## Check if module @code{(guile-user)} provides @var{name}. 305 ## If so, set @var{var} to "yes", otherwise "no". 306 ## Additionally, this value is cached in shell var @code{guile_cv_@var{var}}. 307 ## 308 AC_DEFUN([SNUGGLE_GUILE_USER_PROVIDES], 309 [SNUGGLE_MODULE_CHECK([$1],[guile-user],[$2],[provides ‘$2’])]) 310 311 ##: SNUGGLE_CHECK_CLASSIC_HEADERS 312 ## HAVE_GUILE_GH_H HAVE_GUILE_MODSUP_H 313 ## 314 ## Check for @file{guile/gh.h} and @file{guile/modsup.h} via 315 ## @code{AC_CHECK_HEADERS}, thus @code{#define}ing the 316 ## C preprocessor symbols @code{HAVE_GUILE_GH_H} and 317 ## @code{HAVE_GUILE_MODSUP_H}, respectively. 318 ## 319 ## The checks respect var @code{GUILE_CFLAGS} 320 ## (from macro @code{SNUGGLE_FLAGS}). 321 ## 322 AC_DEFUN([SNUGGLE_CHECK_CLASSIC_HEADERS],[ 323 __snuggle_saved_CFLAGS="$CFLAGS" 324 CFLAGS="$GUILE_CFLAGS $CFLAGS" 325 AC_CHECK_HEADERS([guile/gh.h],,,[[ 326 #include <libguile.h> 327 ]]) 328 AC_CHECK_HEADERS([guile/modsup.h],,,[[ 329 #include <libguile.h> 330 #if HAVE_GUILE_GH_H 331 #include <guile/gh.h> 332 #endif 333 ]]) 334 CFLAGS="$__snuggle_saved_CFLAGS" 335 AS_UNSET([__snuggle_saved_CFLAGS]) 336 ]) 337 338 ##: SNUGGLE_MAINT_MODE_BASE(description) 339 ## 340 ## Add support for @file{configure} script option 341 ## @code{--enable-maint-mode} via @code{AC_ARG_ENABLE}. 342 ## This provides shell var @code{enable_maint_mode} 343 ## with default value @code{no}, 344 ## and arranges to display @var{description} in the 345 ## @shellcommand{--help} output. 346 ## 347 AC_DEFUN([SNUGGLE_MAINT_MODE_BASE],[ 348 AC_ARG_ENABLE([maint-mode], 349 [AS_HELP_STRING([--enable-maint-mode],[$1])],,[enable_maint_mode=no]) 350 ]) 351 352 ##: SNUGGLE_MAINT_MODE 353 ## MAINT_MODE 354 ## 355 ## Add support for @file{configure} script option 356 ## @code{--enable-maint-mode}, and provide the Automake 357 ## conditional var @code{MAINT_MODE}. Note that this is similar 358 ## to the latter part of @code{AM_MAINTAINER_MODE}; the former part, 359 ## which controls @file{Makefile}-rebuilding rules, is not included. 360 ## 361 AC_DEFUN([SNUGGLE_MAINT_MODE],[ 362 SNUGGLE_MAINT_MODE_BASE([enable makefile rules to build 363 maintainer-specific bits unlikely to be interesting to casual users]) 364 AM_CONDITIONAL([MAINT_MODE],[test x"$enable_maint_mode" = xyes]) 365 ]) 366 367 ## snuggle.m4 ends here