2 # Process this file with autoconf to produce a configure script.
4 # Copyright 2006 David Hilvert <dhilvert@auricle.dyndns.org>,
5 # <dhilvert@ugcs.caltech.edu>
7 # This file is part of the Anti-Lamenessing Engine.
9 # The Anti-Lamenessing Engine is free software; you can redistribute it and/or modify
10 # it under the terms of the GNU General Public License as published by
11 # the Free Software Foundation; either version 2 of the License, or
12 # (at your option) any later version.
14 # The Anti-Lamenessing Engine is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with Anti-Lamenessing Engine; if not, write to the Free Software
21 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 # Parts of this file were automatically generated by the GNU project's
24 # configuration generator 'autoscan', part of the 'autoconf' package from the
25 # 'autotools' family of build and installation tools.
33 AC_INIT(ALE, 0.8.7, ale@ventricle.dyndns.org)
34 AC_CONFIG_SRCDIR([ale_accum.h])
35 AC_CONFIG_HEADER([config.h])
39 # Checks for programs.
43 # The strtod check breaks cross-compilation, so disable it.
44 AC_DEFUN([AC_FUNC_STRTOD],[])
59 # Checks for libraries.
60 # FIXME: Replace `main' with a function in `-lm':
61 AC_CHECK_LIB([m], [main])
63 # Checks for header files.
66 AC_CHECK_HEADERS([limits.h stdint.h stdlib.h string.h sys/ioctl.h unistd.h time.h sys/time.h])
68 # Checks for typedefs, structures, and compiler characteristics.
75 # Checks for library functions. (Commented calls cause problems for cross-compilation.)
78 AC_PROG_GCC_TRADITIONAL
81 AC_FUNC_SELECT_ARGTYPES
84 AC_CHECK_FUNCS([floor memset pow select sqrt strchr strcspn strdup strndup strspn strtol nrand48 rand_r gettimeofday nanosleep])
86 # Check for POSIX threads.
89 # Determine whether multithreading should be used.
90 AC_ARG_ENABLE(threads, [ --enable-threads enable multithreading: auto, no, yes (default=auto)])
91 if test x$enable_threads != xno \
92 && test x$acx_pthread_ok = xyes; then
93 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -DUSE_PTHREAD=1"
96 # XXX: This is probably wrong.
99 if test x$PTHREAD_CXX = x; then
104 # CC replacement logic from ImageMagick's configuration process
107 if test "$CC" != "$PTHREAD_CC"; then
108 AC_MSG_WARN([Replacing compiler $CC with compiler $PTHREAD_CC to support pthreads.])
111 if test "$CXX" != "$PTHREAD_CXX"; then
112 AC_MSG_WARN([Replacing compiler $CXX with compiler $PTHREAD_CXX to support pthreads.])
117 if test x$enable_threads = xyes \
118 && test x$acx_pthread_ok = xno; then
119 AC_MSG_ERROR([Multithreaded build requested (--enable-threads=yes), but usable library was found.])
123 # Determine whether assertions should be enabled.
124 AC_ARG_ENABLE(assertions, [ --enable-assertions check runtime assertions (default=yes)])
125 if test x$enable_assertions = xno; then
126 ASSERT_FLAGS="-DNDEBUG"
128 ASSERT_FLAGS="-DDEBUG"
131 # Determine whether ImageMagick should be linked
132 AC_ARG_WITH(imagemagick, [ --with-imagemagick ImageMagick file handling: auto,no,yes (default=auto)])
133 if test x$with_imagemagick != xno; then
135 # AC_CHECK_TOOL is somewhat broken for cross-compilation in
136 # some versions of autoconf, so use a conditional instead.
138 if test x$host = x$build \
139 || test x$host = x; then
140 AC_CHECK_TOOL(MAGICK_CONFIG, Magick-config, no)
142 AC_CHECK_PROG(MAGICK_CONFIG, ${ac_tool_prefix}Magick-config, ${ac_tool_prefix}Magick-config, no)
145 if test x$MAGICK_CONFIG != xno; then
147 # Bugs have been encountered in certain versions of ImageMagick
148 # older than 6.0.6. Until a test is written to check for these
149 # bugs, check the version number instead.
151 IMAGEMAGICK_VERSION=`Magick-config --version`
152 IMAGEMAGICK_VERSION_A=`echo $IMAGEMAGICK_VERSION | cut -f 1 -d '.'`
153 IMAGEMAGICK_VERSION_B=`echo $IMAGEMAGICK_VERSION | cut -f 2 -d '.'`
154 IMAGEMAGICK_VERSION_C=`echo $IMAGEMAGICK_VERSION | cut -f 3 -d '.'`
156 if test $IMAGEMAGICK_VERSION_A -gt 6 \
157 || ( test $IMAGEMAGICK_VERSION_A -eq 6 \
158 && test $IMAGEMAGICK_VERSION_B -gt 0 ) \
159 || ( test $IMAGEMAGICK_VERSION_A -eq 6 \
160 && test $IMAGEMAGICK_VERSION_B -eq 0 \
161 && test $IMAGEMAGICK_VERSION_C -ge 6 ); then
162 IMAGEMAGICK_CFLAGS=`$MAGICK_CONFIG --cflags`
163 IMAGEMAGICK_CPPFLAGS="`$MAGICK_CONFIG --cppflags` -DUSE_MAGICK"
164 IMAGEMAGICK_LDFLAGS=`$MAGICK_CONFIG --ldflags`
165 IMAGEMAGICK_LIBS=`$MAGICK_CONFIG --libs`
167 AC_MSG_WARN([not using ImageMagick older than 6.0.6 (found $IMAGEMAGICK_VERSION)])
171 IMAGEMAGICK_CFLAGS=""
172 IMAGEMAGICK_CPPFLAGS=""
173 IMAGEMAGICK_LDFLAGS=""
177 # Fatal error if user flag for ImageMagick could not be satisified
178 if test x$with_imagemagick = xyes \
179 && test x$IMAGEMAGICK_CPPFLAGS = x; then
180 AC_MSG_ERROR([ImageMagick build requested (--enable-imagemagick=yes), but no suitable version was found.])
183 # Determine whether FFTW should be linked
184 AC_ARG_WITH(fftw3, [ --with-fftw3 FFTW3 fourier transforms: auto,no,yes (default=auto)])
185 if test x$with_fftw3 != xno; then
186 AC_CHECK_LIB([fftw3], [main], LIBS="-lfftw3 $LIBS" FFTW_CPPFLAGS="-DUSE_FFTW")
189 # Fatal error if user flag for FFTW could not be satisified
190 if test x$with_fftw3 = xyes \
191 && test x$FFTW_CPPFLAGS = x; then
192 AC_MSG_ERROR([FFTW3 build requested (--enable-fftw3=yes), but no suitable version was found.])
195 # Determine the precision of colors that should be used
196 AC_ARG_WITH(colors, [ --with-colors=[TYPE] use TYPE colors: single,double (default=single)])
197 if test x$with_colors = xsingle \
198 || test x$with_colors = x; then
199 COLOR_CPPFLAGS="-DALE_COLORS=SINGLE"
200 elif test x$with_colors = xdouble; then
201 COLOR_CPPFLAGS="-DALE_COLORS=DOUBLE"
203 AC_MSG_ERROR(option --with-colors=$with_colors is not currently supported)
206 # Determine the precision of coordinates that should be used
207 AC_ARG_WITH(coords, [ --with-coords=[TYPE] use TYPE coords: single,double (default=single)])
208 if test x$with_coords = xsingle \
209 || test x$with_coords = x; then
210 COORD_CPPFLAGS="-DALE_COORDINATES=SINGLE"
211 elif test x$with_coords = xdouble; then
212 COORD_CPPFLAGS="-DALE_COORDINATES=DOUBLE"
214 AC_MSG_ERROR(option --with-coords=$with_coords is not currently supported)
217 # Determine whether optimizations should be used
218 AC_ARG_ENABLE(optimization, [ --enable-optimizations use optimization code (default=yes)])
219 if test x$enable_optimizations = xyes \
220 || test x$enable_optimizations = x; then
221 OPTIMIZATION_CPPFLAGS="-DOPTIMIZATIONS=1"
222 elif test x$enable_optimizations = xno; then
223 OPTIMIZATION_CPPFLAGS="-DOPTIMIZATIONS=0"
225 AC_MSG_ERROR(option --enable-optimizations=$enable_optimizations is not currently supported)
228 # Determine whether hash maps should be used.
229 AC_ARG_WITH(hashmap, [ --with-hashmap=[TYPE] Use TYPE hash map: no,gnu,std (default=no)])
230 if test x$with_hashmap = xno \
231 || test x$with_hashmap = x; then
233 elif test x$with_hashmap = xgnu; then
234 AC_CACHE_CHECK(whether GNU hash maps are available, ac_cv_gnu_hash,[
238 #include <ext/hash_map>
241 size_t operator()(int n) const
243 return __gnu_cxx::hash<int>()(n);
246 typedef __gnu_cxx::hash_map<int, int, node_hash> int_map_t;
249 ], ac_cv_gnu_hash=yes, ac_cv_gnu_hash=no)
251 if test $ac_cv_gnu_hash = yes; then
252 STL_CPPFLAGS="-DHASH_MAP_GNU"
254 AC_MSG_ERROR([option --with-hashmap=gnu specified, but this configuration fails.])
256 elif test x$with_hashmap = xstd; then
257 AC_CACHE_CHECK(whether std hash maps are available, ac_cv_std_hash,[
261 #include <ext/hash_map>
262 typedef std::hash_map<int, int> int_map_t;
265 ], ac_cv_std_hash=yes, ac_cv_std_hash=no)
267 if test $ac_cv_std_hash = yes; then
268 STL_CPPFLAGS="-DHASH_MAP_STD"
270 AC_MSG_ERROR([option --with-hashmap=std specified, but this configuration fails.])
273 AC_MSG_ERROR(option --with-hashmap=$with_hashmap is not currently supported)
277 # Determine whether ioctl() should be used for determining window dimensions
278 AC_ARG_ENABLE(getsize, [ --enable-getsize get terminal size: auto,no,yes (default=auto)
279 (not doing this disables certain UI updates)])
280 if test x$enable_getsize != xno; then
282 # Check for Unix facilities.
283 AC_CHECK_HEADER(sys/ioctl.h, AC_DEFINE([HAVE_SYS_IOCTL_H]))
284 AC_CHECK_FUNC(ioctl, AC_DEFINE([HAVE_IOCTL], [], [ioctl() function is available.]))
285 AC_CHECK_DECL(TIOCGWINSZ, have_winsz=yes, have_winsz=no, [#include <sys/ioctl.h>])
287 if test x$ac_cv_header_sys_ioctl_h = xyes \
288 && test x$ac_cv_func_ioctl = xyes \
289 && test x$have_winsz = xyes; then
290 IOCTL_CPPFLAGS="-DUSE_IOCTL"
294 # Fatal error if IOCTL configuration could not be satisfied
295 if test x$enable_getsize = xyes \
296 && test x$IOCTL_CPPFLAGS = x; then
297 if test x$ac_cv_header_sys_ioctl_h != xyes; then
298 AC_MSG_ERROR([ioctl() for window size requested (--enable-getsize=yes), but sys/ioctl.h was not found.])
300 if test x$ac_cv_func_ioctl != xyes; then
301 AC_MSG_ERROR([ioctl() for window size requested (--enable-getsize=yes), but ioctl() was not found.])
303 if test x$have_winsz != xyes; then
304 AC_MSG_ERROR([ioctl() for window size requested (--enable-getsize=yes), but TIOCGWINSZ was not found.])
306 AC_MSG_ERROR([ioctl() for window size requested (--enable-getsize=yes), but this configuration fails.])
309 # Determine whether the --wmx flag should be supported
310 AC_ARG_ENABLE(wmx, [ --enable-wmx Enable --wmx option: auto,no,yes (default=auto)
311 (this option requires execlp() and fork())])
312 if test x$enable_wmx != xno; then
314 # Check for Unix facilities.
315 AC_CHECK_HEADER(unistd.h, AC_DEFINE([HAVE_UNISTD_H]))
316 AC_CHECK_FUNC(execlp, AC_DEFINE([HAVE_EXECLP], [], [execlp() function is available.]))
318 if test x$ac_cv_func_fork_works = xyes \
319 && test x$ac_cv_header_unistd_h = xyes \
320 && test x$ac_cv_func_execlp = xyes; then
321 UNIX_CPPFLAGS="-DUSE_UNIX"
325 # Fatal error if --wmx configuration could not be satisified
326 if test x$enable_wmx = xyes \
327 && test x$UNIX_CPPFLAGS = x; then
328 if test x$ac_cv_func_execlp != xyes; then
329 AC_MSG_ERROR([--wmx support requested (--enable-wmx=yes), but execlp() was not found.])
331 if test x$ac_cv_header_unistd_h != xyes; then
332 AC_MSG_ERROR([--wmx support requested (--enable-wmx=yes), but unistd.h header was not found.])
334 if test x$ac_cv_func_fork_works != xyes; then
335 AC_MSG_ERROR([--wmx support requested (--enable-wmx=yes), but a working fork() was not found.])
337 AC_MSG_ERROR([--wmx support requested (--enable-wmx=yes), but this configuration fails.])
340 OPTION_CPPFLAGS="$ASSERT_FLAGS $IMAGEMAGICK_CPPFLAGS $FFTW_CPPFLAGS $UNIX_CPPFLAGS $IOCTL_CPPFLAGS $COORD_CPPFLAGS $COLOR_CPPFLAGS $OPTIMIZATION_CPPFLAGS $STL_CPPFLAGS"
341 OPTION_CFLAGS="$IMAGEMAGICK_CFLAGS $PTHREAD_CFLAGS"
342 OPTION_LDFLAGS="$IMAGEMAGICK_LDFLAGS"
343 OPTION_LIBS="$PTHREAD_LIBS $IMAGEMAGICK_LIBS"
345 AC_SUBST(OPTION_CPPFLAGS)
346 AC_SUBST(OPTION_CFLAGS)
347 AC_SUBST(OPTION_LDFLAGS)
348 AC_SUBST(OPTION_LIBS)
350 AC_CONFIG_FILES([Makefile lib/Makefile])
354 # Since the generated Makefile seems to sometimes miss build steps that are
355 # required due to reconfiguration, 'make clean' here.
357 AC_MSG_NOTICE(making clean)
358 make clean &> /dev/null