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1 | # -*- Autoconf -*- | |
2 | # Process this file with autoconf to produce a configure script. | |
3 | ||
4 | AC_PREREQ(2.59) | |
5 | AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org]) | |
6 | ||
7 | AC_CONFIG_SRCDIR([git.c]) | |
8 | ||
9 | config_file=config.mak.autogen | |
10 | config_append=config.mak.append | |
11 | config_in=config.mak.in | |
12 | ||
13 | echo "# ${config_append}. Generated by configure." > "${config_append}" | |
14 | ||
15 | ||
16 | ## Definitions of macros | |
17 | # GIT_CONF_APPEND_LINE(LINE) | |
18 | # -------------------------- | |
19 | # Append LINE to file ${config_append} | |
20 | AC_DEFUN([GIT_CONF_APPEND_LINE], | |
21 | [echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE | |
22 | # | |
23 | # GIT_ARG_SET_PATH(PROGRAM) | |
24 | # ------------------------- | |
25 | # Provide --with-PROGRAM=PATH option to set PATH to PROGRAM | |
26 | # Optional second argument allows setting NO_PROGRAM=YesPlease if | |
27 | # --without-PROGRAM version used. | |
28 | AC_DEFUN([GIT_ARG_SET_PATH], | |
29 | [AC_ARG_WITH([$1], | |
30 | [AS_HELP_STRING([--with-$1=PATH], | |
31 | [provide PATH to $1])], | |
32 | [GIT_CONF_APPEND_PATH($1,$2)],[]) | |
33 | ])# GIT_ARG_SET_PATH | |
34 | # | |
35 | # GIT_CONF_APPEND_PATH(PROGRAM) | |
36 | # ------------------------------ | |
37 | # Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH | |
38 | # Used by GIT_ARG_SET_PATH(PROGRAM) | |
39 | # Optional second argument allows setting NO_PROGRAM=YesPlease if | |
40 | # --without-PROGRAM is used. | |
41 | AC_DEFUN([GIT_CONF_APPEND_PATH], | |
42 | [PROGRAM=m4_toupper($1); \ | |
43 | if test "$withval" = "no"; then \ | |
44 | if test -n "$2"; then \ | |
45 | m4_toupper($1)_PATH=$withval; \ | |
46 | AC_MSG_NOTICE([Disabling use of ${PROGRAM}]); \ | |
47 | GIT_CONF_APPEND_LINE(NO_${PROGRAM}=YesPlease); \ | |
48 | GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=); \ | |
49 | else \ | |
50 | AC_MSG_ERROR([You cannot use git without $1]); \ | |
51 | fi; \ | |
52 | else \ | |
53 | if test "$withval" = "yes"; then \ | |
54 | AC_MSG_WARN([You should provide path for --with-$1=PATH]); \ | |
55 | else \ | |
56 | m4_toupper($1)_PATH=$withval; \ | |
57 | AC_MSG_NOTICE([Setting m4_toupper($1)_PATH to $withval]); \ | |
58 | GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \ | |
59 | fi; \ | |
60 | fi; \ | |
61 | ]) # GIT_CONF_APPEND_PATH | |
62 | # | |
63 | # GIT_PARSE_WITH(PACKAGE) | |
64 | # ----------------------- | |
65 | # For use in AC_ARG_WITH action-if-found, for packages default ON. | |
66 | # * Set NO_PACKAGE=YesPlease for --without-PACKAGE | |
67 | # * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH | |
68 | # * Unset NO_PACKAGE for --with-PACKAGE without ARG | |
69 | AC_DEFUN([GIT_PARSE_WITH], | |
70 | [PACKAGE=m4_toupper($1); \ | |
71 | if test "$withval" = "no"; then \ | |
72 | m4_toupper(NO_$1)=YesPlease; \ | |
73 | elif test "$withval" = "yes"; then \ | |
74 | m4_toupper(NO_$1)=; \ | |
75 | else \ | |
76 | m4_toupper(NO_$1)=; \ | |
77 | m4_toupper($1)DIR=$withval; \ | |
78 | AC_MSG_NOTICE([Setting m4_toupper($1)DIR to $withval]); \ | |
79 | GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \ | |
80 | fi \ | |
81 | ])# GIT_PARSE_WITH | |
82 | # | |
83 | # GIT_PARSE_WITH_SET_MAKE_VAR(WITHNAME, VAR, HELP_TEXT) | |
84 | # --------------------- | |
85 | # Set VAR to the value specied by --with-WITHNAME. | |
86 | # No verification of arguments is performed, but warnings are issued | |
87 | # if either 'yes' or 'no' is specified. | |
88 | # HELP_TEXT is presented when --help is called. | |
89 | # This is a direct way to allow setting variables in the Makefile. | |
90 | AC_DEFUN([GIT_PARSE_WITH_SET_MAKE_VAR], | |
91 | [AC_ARG_WITH([$1], | |
92 | [AS_HELP_STRING([--with-$1=VALUE], $3)], | |
93 | if test -n "$withval"; then \ | |
94 | if test "$withval" = "yes" -o "$withval" = "no"; then \ | |
95 | AC_MSG_WARN([You likely do not want either 'yes' or 'no' as] | |
96 | [a value for $1 ($2). Maybe you do...?]); \ | |
97 | fi; \ | |
98 | \ | |
99 | AC_MSG_NOTICE([Setting $2 to $withval]); \ | |
100 | GIT_CONF_APPEND_LINE($2=$withval); \ | |
101 | fi)])# GIT_PARSE_WITH_SET_MAKE_VAR | |
102 | ||
103 | dnl | |
104 | dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE) | |
105 | dnl ----------------------------------------- | |
106 | dnl Similar to AC_CHECK_FUNC, but on systems that do not generate | |
107 | dnl warnings for missing prototypes (e.g. FreeBSD when compiling without | |
108 | dnl -Wall), it does not work. By looking for function definition in | |
109 | dnl libraries, this problem can be worked around. | |
110 | AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[ | |
111 | AC_SEARCH_LIBS([$1],, | |
112 | [$2],[$3]) | |
113 | ],[$3])]) | |
114 | ||
115 | dnl | |
116 | dnl GIT_STASH_FLAGS(BASEPATH_VAR) | |
117 | dnl ----------------------------- | |
118 | dnl Allow for easy stashing of LDFLAGS and CPPFLAGS before running | |
119 | dnl tests that may want to take user settings into account. | |
120 | AC_DEFUN([GIT_STASH_FLAGS],[ | |
121 | if test -n "$1"; then | |
122 | old_CPPFLAGS="$CPPFLAGS" | |
123 | old_LDFLAGS="$LDFLAGS" | |
124 | CPPFLAGS="-I$1/include $CPPFLAGS" | |
125 | LDFLAGS="-L$1/$lib $LDFLAGS" | |
126 | fi | |
127 | ]) | |
128 | ||
129 | dnl | |
130 | dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR) | |
131 | dnl ----------------------------- | |
132 | dnl Restore the stashed *FLAGS values. | |
133 | AC_DEFUN([GIT_UNSTASH_FLAGS],[ | |
134 | if test -n "$1"; then | |
135 | CPPFLAGS="$old_CPPFLAGS" | |
136 | LDFLAGS="$old_LDFLAGS" | |
137 | fi | |
138 | ]) | |
139 | ||
140 | ## Site configuration related to programs (before tests) | |
141 | ## --with-PACKAGE[=ARG] and --without-PACKAGE | |
142 | # | |
143 | # Set lib to alternative name of lib directory (e.g. lib64) | |
144 | AC_ARG_WITH([lib], | |
145 | [AS_HELP_STRING([--with-lib=ARG], | |
146 | [ARG specifies alternative name for lib directory])], | |
147 | [if test "$withval" = "no" || test "$withval" = "yes"; then \ | |
148 | AC_MSG_WARN([You should provide name for --with-lib=ARG]); \ | |
149 | else \ | |
150 | lib=$withval; \ | |
151 | AC_MSG_NOTICE([Setting lib to '$lib']); \ | |
152 | GIT_CONF_APPEND_LINE(lib=$withval); \ | |
153 | fi; \ | |
154 | ],[]) | |
155 | ||
156 | if test -z "$lib"; then | |
157 | AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) | |
158 | lib=lib | |
159 | fi | |
160 | ||
161 | AC_ARG_ENABLE([pthreads], | |
162 | [AS_HELP_STRING([--enable-pthreads=FLAGS], | |
163 | [FLAGS is the value to pass to the compiler to enable POSIX Threads.] | |
164 | [The default if FLAGS is not specified is to try first -pthread] | |
165 | [and then -lpthread.] | |
166 | [--without-pthreads will disable threading.])], | |
167 | [ | |
168 | if test "x$enableval" = "xyes"; then | |
169 | AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads]) | |
170 | elif test "x$enableval" != "xno"; then | |
171 | PTHREAD_CFLAGS=$enableval | |
172 | AC_MSG_NOTICE([Setting '$PTHREAD_CFLAGS' as the FLAGS to enable POSIX Threads]) | |
173 | else | |
174 | AC_MSG_NOTICE([POSIX Threads will be disabled.]) | |
175 | NO_PTHREADS=YesPlease | |
176 | USER_NOPTHREAD=1 | |
177 | fi], | |
178 | [ | |
179 | AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.]) | |
180 | ]) | |
181 | ||
182 | # Define option to enable JavaScript minification | |
183 | AC_ARG_ENABLE([jsmin], | |
184 | [AS_HELP_STRING([--enable-jsmin=PATH], | |
185 | [PATH is the name of a JavaScript minifier or the absolute path to one.])], | |
186 | [ | |
187 | JSMIN=$enableval; | |
188 | AC_MSG_NOTICE([Setting JSMIN to '$JSMIN' to enable JavaScript minifying]) | |
189 | GIT_CONF_APPEND_LINE(JSMIN=$enableval); | |
190 | ]) | |
191 | ||
192 | # Define option to enable CSS minification | |
193 | AC_ARG_ENABLE([cssmin], | |
194 | [AS_HELP_STRING([--enable-cssmin=PATH], | |
195 | [PATH is the name of a CSS minifier or the absolute path to one.])], | |
196 | [ | |
197 | CSSMIN=$enableval; | |
198 | AC_MSG_NOTICE([Setting CSSMIN to '$CSSMIN' to enable CSS minifying]) | |
199 | GIT_CONF_APPEND_LINE(CSSMIN=$enableval); | |
200 | ]) | |
201 | ||
202 | ## Site configuration (override autodetection) | |
203 | ## --with-PACKAGE[=ARG] and --without-PACKAGE | |
204 | AC_MSG_NOTICE([CHECKS for site configuration]) | |
205 | # | |
206 | # Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability | |
207 | # tests. These tests take up a significant amount of the total test time | |
208 | # but are not needed unless you plan to talk to SVN repos. | |
209 | # | |
210 | # Define PPC_SHA1 environment variable when running make to make use of | |
211 | # a bundled SHA1 routine optimized for PowerPC. | |
212 | # | |
213 | # Define NO_OPENSSL environment variable if you do not have OpenSSL. | |
214 | # This also implies BLK_SHA1. | |
215 | # | |
216 | # Define OPENSSLDIR=/foo/bar if your openssl header and library files are in | |
217 | # /foo/bar/include and /foo/bar/lib directories. | |
218 | AC_ARG_WITH(openssl, | |
219 | AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) | |
220 | AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\ | |
221 | GIT_PARSE_WITH(openssl)) | |
222 | # | |
223 | # Define NO_CURL if you do not have curl installed. git-http-pull and | |
224 | # git-http-push are not built, and you cannot use http:// and https:// | |
225 | # transports. | |
226 | # | |
227 | # Define CURLDIR=/foo/bar if your curl header and library files are in | |
228 | # /foo/bar/include and /foo/bar/lib directories. | |
229 | AC_ARG_WITH(curl, | |
230 | AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) | |
231 | AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), | |
232 | GIT_PARSE_WITH(curl)) | |
233 | # | |
234 | # Define NO_EXPAT if you do not have expat installed. git-http-push is | |
235 | # not built, and you cannot push using http:// and https:// transports. | |
236 | # | |
237 | # Define EXPATDIR=/foo/bar if your expat header and library files are in | |
238 | # /foo/bar/include and /foo/bar/lib directories. | |
239 | AC_ARG_WITH(expat, | |
240 | AS_HELP_STRING([--with-expat], | |
241 | [support git-push using http:// and https:// transports via WebDAV (default is YES)]) | |
242 | AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), | |
243 | GIT_PARSE_WITH(expat)) | |
244 | # | |
245 | # Define NO_FINK if you are building on Darwin/Mac OS X, have Fink | |
246 | # installed in /sw, but don't want GIT to link against any libraries | |
247 | # installed there. If defined you may specify your own (or Fink's) | |
248 | # include directories and library directories by defining CFLAGS | |
249 | # and LDFLAGS appropriately. | |
250 | # | |
251 | # Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, | |
252 | # have DarwinPorts installed in /opt/local, but don't want GIT to | |
253 | # link against any libraries installed there. If defined you may | |
254 | # specify your own (or DarwinPort's) include directories and | |
255 | # library directories by defining CFLAGS and LDFLAGS appropriately. | |
256 | # | |
257 | # Define NO_MMAP if you want to avoid mmap. | |
258 | # | |
259 | # Define NO_ICONV if your libc does not properly support iconv. | |
260 | AC_ARG_WITH(iconv, | |
261 | AS_HELP_STRING([--without-iconv], | |
262 | [if your architecture doesn't properly support iconv]) | |
263 | AS_HELP_STRING([--with-iconv=PATH], | |
264 | [PATH is prefix for libiconv library and headers]) | |
265 | AS_HELP_STRING([], | |
266 | [used only if you need linking with libiconv]), | |
267 | GIT_PARSE_WITH(iconv)) | |
268 | ||
269 | ## --enable-FEATURE[=ARG] and --disable-FEATURE | |
270 | # | |
271 | # Define USE_NSEC below if you want git to care about sub-second file mtimes | |
272 | # and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and | |
273 | # it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely | |
274 | # randomly break unless your underlying filesystem supports those sub-second | |
275 | # times (my ext3 doesn't). | |
276 | # | |
277 | # Define USE_STDEV below if you want git to care about the underlying device | |
278 | # change being considered an inode change from the update-index perspective. | |
279 | ||
280 | # | |
281 | # Allow user to set ETC_GITCONFIG variable | |
282 | GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG, | |
283 | Use VALUE instead of /etc/gitconfig as the | |
284 | global git configuration file. | |
285 | If VALUE is not fully qualified it will be interpretted | |
286 | as a path relative to the computed prefix at runtime.) | |
287 | ||
288 | # | |
289 | # Allow user to set the default pager | |
290 | GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER, | |
291 | Use VALUE as the fall-back pager instead of 'less'. | |
292 | This is used by things like 'git log' when the user | |
293 | does not specify a pager to use through alternate | |
294 | methods. eg: /usr/bin/pager) | |
295 | # | |
296 | # Allow user to set the default editor | |
297 | GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR, | |
298 | Use VALUE as the fall-back editor instead of 'vi'. | |
299 | This is used by things like 'git commit' when the user | |
300 | does not specify a preferred editor through other | |
301 | methods. eg: /usr/bin/editor) | |
302 | ||
303 | # | |
304 | # Define SHELL_PATH to provide path to shell. | |
305 | GIT_ARG_SET_PATH(shell) | |
306 | # | |
307 | # Define PERL_PATH to provide path to Perl. | |
308 | GIT_ARG_SET_PATH(perl) | |
309 | # | |
310 | # Define PYTHON_PATH to provide path to Python. | |
311 | GIT_ARG_SET_PATH(python, allow-without) | |
312 | # | |
313 | # Define ZLIB_PATH to provide path to zlib. | |
314 | GIT_ARG_SET_PATH(zlib) | |
315 | # | |
316 | # Declare the with-tcltk/without-tcltk options. | |
317 | AC_ARG_WITH(tcltk, | |
318 | AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) | |
319 | AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) | |
320 | AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) | |
321 | AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\ | |
322 | GIT_PARSE_WITH(tcltk)) | |
323 | # | |
324 | ||
325 | ||
326 | ## Checks for programs. | |
327 | AC_MSG_NOTICE([CHECKS for programs]) | |
328 | # | |
329 | AC_PROG_CC([cc gcc]) | |
330 | AC_C_INLINE | |
331 | case $ac_cv_c_inline in | |
332 | inline | yes | no) ;; | |
333 | *) AC_SUBST([INLINE], [$ac_cv_c_inline]) ;; | |
334 | esac | |
335 | ||
336 | # which switch to pass runtime path to dynamic libraries to the linker | |
337 | AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [ | |
338 | SAVE_LDFLAGS="${LDFLAGS}" | |
339 | LDFLAGS="${SAVE_LDFLAGS} -R /" | |
340 | AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no]) | |
341 | LDFLAGS="${SAVE_LDFLAGS}" | |
342 | ]) | |
343 | if test "$git_cv_ld_dashr" = "yes"; then | |
344 | AC_SUBST(CC_LD_DYNPATH, [-R]) | |
345 | else | |
346 | AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [ | |
347 | SAVE_LDFLAGS="${LDFLAGS}" | |
348 | LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/" | |
349 | AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no]) | |
350 | LDFLAGS="${SAVE_LDFLAGS}" | |
351 | ]) | |
352 | if test "$git_cv_ld_wl_rpath" = "yes"; then | |
353 | AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,]) | |
354 | else | |
355 | AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [ | |
356 | SAVE_LDFLAGS="${LDFLAGS}" | |
357 | LDFLAGS="${SAVE_LDFLAGS} -rpath /" | |
358 | AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no]) | |
359 | LDFLAGS="${SAVE_LDFLAGS}" | |
360 | ]) | |
361 | if test "$git_cv_ld_rpath" = "yes"; then | |
362 | AC_SUBST(CC_LD_DYNPATH, [-rpath]) | |
363 | else | |
364 | AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) | |
365 | fi | |
366 | fi | |
367 | fi | |
368 | #AC_PROG_INSTALL # needs install-sh or install.sh in sources | |
369 | AC_CHECK_TOOLS(AR, [gar ar], :) | |
370 | AC_CHECK_PROGS(TAR, [gtar tar]) | |
371 | AC_CHECK_PROGS(DIFF, [gnudiff gdiff diff]) | |
372 | # TCLTK_PATH will be set to some value if we want Tcl/Tk | |
373 | # or will be empty otherwise. | |
374 | if test -z "$NO_TCLTK"; then | |
375 | if test "$with_tcltk" = ""; then | |
376 | # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'. | |
377 | TCLTK_PATH=wish | |
378 | AC_SUBST(TCLTK_PATH) | |
379 | elif test "$with_tcltk" = "yes"; then | |
380 | # Tcl/Tk check requested. | |
381 | AC_CHECK_PROGS(TCLTK_PATH, [wish], ) | |
382 | else | |
383 | AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) | |
384 | TCLTK_PATH="$with_tcltk" | |
385 | AC_SUBST(TCLTK_PATH) | |
386 | fi | |
387 | fi | |
388 | AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) | |
389 | if test -n "$ASCIIDOC"; then | |
390 | AC_MSG_CHECKING([for asciidoc version]) | |
391 | asciidoc_version=`$ASCIIDOC --version 2>/dev/null` | |
392 | case "${asciidoc_version}" in | |
393 | asciidoc' '8*) | |
394 | ASCIIDOC8=YesPlease | |
395 | AC_MSG_RESULT([${asciidoc_version} > 7]) | |
396 | ;; | |
397 | asciidoc' '7*) | |
398 | ASCIIDOC8= | |
399 | AC_MSG_RESULT([${asciidoc_version}]) | |
400 | ;; | |
401 | *) | |
402 | ASCIIDOC8= | |
403 | AC_MSG_RESULT([${asciidoc_version} (unknown)]) | |
404 | ;; | |
405 | esac | |
406 | fi | |
407 | AC_SUBST(ASCIIDOC8) | |
408 | ||
409 | ||
410 | ## Checks for libraries. | |
411 | AC_MSG_NOTICE([CHECKS for libraries]) | |
412 | # | |
413 | # Define NO_OPENSSL environment variable if you do not have OpenSSL. | |
414 | # Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). | |
415 | ||
416 | GIT_STASH_FLAGS($OPENSSLDIR) | |
417 | ||
418 | AC_CHECK_LIB([crypto], [SHA1_Init], | |
419 | [NEEDS_SSL_WITH_CRYPTO=], | |
420 | [AC_CHECK_LIB([ssl], [SHA1_Init], | |
421 | [NEEDS_SSL_WITH_CRYPTO=YesPlease], | |
422 | [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])]) | |
423 | ||
424 | GIT_UNSTASH_FLAGS($OPENSSLDIR) | |
425 | ||
426 | AC_SUBST(NEEDS_SSL_WITH_CRYPTO) | |
427 | AC_SUBST(NO_OPENSSL) | |
428 | ||
429 | # | |
430 | # Define NO_CURL if you do not have libcurl installed. git-http-pull and | |
431 | # git-http-push are not built, and you cannot use http:// and https:// | |
432 | # transports. | |
433 | ||
434 | GIT_STASH_FLAGS($CURLDIR) | |
435 | ||
436 | AC_CHECK_LIB([curl], [curl_global_init], | |
437 | [NO_CURL=], | |
438 | [NO_CURL=YesPlease]) | |
439 | ||
440 | GIT_UNSTASH_FLAGS($CURLDIR) | |
441 | ||
442 | AC_SUBST(NO_CURL) | |
443 | ||
444 | # | |
445 | # Define NO_EXPAT if you do not have expat installed. git-http-push is | |
446 | # not built, and you cannot push using http:// and https:// transports. | |
447 | ||
448 | GIT_STASH_FLAGS($EXPATDIR) | |
449 | ||
450 | AC_CHECK_LIB([expat], [XML_ParserCreate], | |
451 | [NO_EXPAT=], | |
452 | [NO_EXPAT=YesPlease]) | |
453 | ||
454 | GIT_UNSTASH_FLAGS($EXPATDIR) | |
455 | ||
456 | AC_SUBST(NO_EXPAT) | |
457 | ||
458 | # | |
459 | # Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and | |
460 | # some Solaris installations). | |
461 | # Define NO_ICONV if neither libc nor libiconv support iconv. | |
462 | ||
463 | if test -z "$NO_ICONV"; then | |
464 | ||
465 | GIT_STASH_FLAGS($ICONVDIR) | |
466 | ||
467 | AC_DEFUN([ICONVTEST_SRC], [ | |
468 | #include <iconv.h> | |
469 | ||
470 | int main(void) | |
471 | { | |
472 | iconv_open("", ""); | |
473 | return 0; | |
474 | } | |
475 | ]) | |
476 | ||
477 | if test -n "$ICONVDIR"; then | |
478 | lib_order="-liconv -lc" | |
479 | else | |
480 | lib_order="-lc -liconv" | |
481 | fi | |
482 | ||
483 | NO_ICONV=YesPlease | |
484 | ||
485 | for l in $lib_order; do | |
486 | if test "$l" = "-liconv"; then | |
487 | NEEDS_LIBICONV=YesPlease | |
488 | else | |
489 | NEEDS_LIBICONV= | |
490 | fi | |
491 | ||
492 | old_LIBS="$LIBS" | |
493 | LIBS="$LIBS $l" | |
494 | AC_MSG_CHECKING([for iconv in $l]) | |
495 | AC_LINK_IFELSE(ICONVTEST_SRC, | |
496 | [AC_MSG_RESULT([yes]) | |
497 | NO_ICONV= | |
498 | break], | |
499 | [AC_MSG_RESULT([no])]) | |
500 | LIBS="$old_LIBS" | |
501 | done | |
502 | ||
503 | #in case of break | |
504 | LIBS="$old_LIBS" | |
505 | ||
506 | GIT_UNSTASH_FLAGS($ICONVDIR) | |
507 | ||
508 | AC_SUBST(NEEDS_LIBICONV) | |
509 | AC_SUBST(NO_ICONV) | |
510 | ||
511 | if test -n "$NO_ICONV"; then | |
512 | NEEDS_LIBICONV= | |
513 | fi | |
514 | ||
515 | fi | |
516 | ||
517 | # | |
518 | # Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. | |
519 | ||
520 | GIT_STASH_FLAGS($ZLIB_PATH) | |
521 | ||
522 | AC_DEFUN([ZLIBTEST_SRC], [ | |
523 | #include <zlib.h> | |
524 | ||
525 | int main(void) | |
526 | { | |
527 | deflateBound(0, 0); | |
528 | return 0; | |
529 | } | |
530 | ]) | |
531 | AC_MSG_CHECKING([for deflateBound in -lz]) | |
532 | old_LIBS="$LIBS" | |
533 | LIBS="$LIBS -lz" | |
534 | AC_LINK_IFELSE(ZLIBTEST_SRC, | |
535 | [AC_MSG_RESULT([yes])], | |
536 | [AC_MSG_RESULT([no]) | |
537 | NO_DEFLATE_BOUND=yes]) | |
538 | LIBS="$old_LIBS" | |
539 | ||
540 | GIT_UNSTASH_FLAGS($ZLIB_PATH) | |
541 | ||
542 | AC_SUBST(NO_DEFLATE_BOUND) | |
543 | ||
544 | # | |
545 | # Define NEEDS_SOCKET if linking with libc is not enough (SunOS, | |
546 | # Patrick Mauritz). | |
547 | AC_CHECK_LIB([c], [socket], | |
548 | [NEEDS_SOCKET=], | |
549 | [NEEDS_SOCKET=YesPlease]) | |
550 | AC_SUBST(NEEDS_SOCKET) | |
551 | test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" | |
552 | ||
553 | # | |
554 | # The next few tests will define NEEDS_RESOLV if linking with | |
555 | # libresolv provides some of the functions we would normally get | |
556 | # from libc. | |
557 | NEEDS_RESOLV= | |
558 | AC_SUBST(NEEDS_RESOLV) | |
559 | # | |
560 | # Define NO_INET_NTOP if linking with -lresolv is not enough. | |
561 | # Solaris 2.7 in particular hos inet_ntop in -lresolv. | |
562 | NO_INET_NTOP= | |
563 | AC_SUBST(NO_INET_NTOP) | |
564 | AC_CHECK_FUNC([inet_ntop], | |
565 | [], | |
566 | [AC_CHECK_LIB([resolv], [inet_ntop], | |
567 | [NEEDS_RESOLV=YesPlease], | |
568 | [NO_INET_NTOP=YesPlease]) | |
569 | ]) | |
570 | # | |
571 | # Define NO_INET_PTON if linking with -lresolv is not enough. | |
572 | # Solaris 2.7 in particular hos inet_pton in -lresolv. | |
573 | NO_INET_PTON= | |
574 | AC_SUBST(NO_INET_PTON) | |
575 | AC_CHECK_FUNC([inet_pton], | |
576 | [], | |
577 | [AC_CHECK_LIB([resolv], [inet_pton], | |
578 | [NEEDS_RESOLV=YesPlease], | |
579 | [NO_INET_PTON=YesPlease]) | |
580 | ]) | |
581 | # | |
582 | # Define NO_HSTRERROR if linking with -lresolv is not enough. | |
583 | # Solaris 2.6 in particular has no hstrerror, even in -lresolv. | |
584 | NO_HSTRERROR= | |
585 | AC_CHECK_FUNC([hstrerror], | |
586 | [], | |
587 | [AC_CHECK_LIB([resolv], [hstrerror], | |
588 | [NEEDS_RESOLV=YesPlease], | |
589 | [NO_HSTRERROR=YesPlease]) | |
590 | ]) | |
591 | AC_SUBST(NO_HSTRERROR) | |
592 | # | |
593 | # If any of the above tests determined that -lresolv is needed at | |
594 | # build-time, also set it here for remaining configure-time checks. | |
595 | test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv" | |
596 | ||
597 | AC_CHECK_LIB([c], [basename], | |
598 | [NEEDS_LIBGEN=], | |
599 | [NEEDS_LIBGEN=YesPlease]) | |
600 | AC_SUBST(NEEDS_LIBGEN) | |
601 | test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen" | |
602 | ||
603 | ## Checks for header files. | |
604 | AC_MSG_NOTICE([CHECKS for header files]) | |
605 | # | |
606 | # Define NO_SYS_SELECT_H if you don't have sys/select.h. | |
607 | AC_CHECK_HEADER([sys/select.h], | |
608 | [NO_SYS_SELECT_H=], | |
609 | [NO_SYS_SELECT_H=UnfortunatelyYes]) | |
610 | AC_SUBST(NO_SYS_SELECT_H) | |
611 | # | |
612 | # Define OLD_ICONV if your library has an old iconv(), where the second | |
613 | # (input buffer pointer) parameter is declared with type (const char **). | |
614 | AC_DEFUN([OLDICONVTEST_SRC], [[ | |
615 | #include <iconv.h> | |
616 | ||
617 | extern size_t iconv(iconv_t cd, | |
618 | char **inbuf, size_t *inbytesleft, | |
619 | char **outbuf, size_t *outbytesleft); | |
620 | ||
621 | int main(void) | |
622 | { | |
623 | return 0; | |
624 | } | |
625 | ]]) | |
626 | ||
627 | GIT_STASH_FLAGS($ICONVDIR) | |
628 | ||
629 | AC_MSG_CHECKING([for old iconv()]) | |
630 | AC_COMPILE_IFELSE(OLDICONVTEST_SRC, | |
631 | [AC_MSG_RESULT([no])], | |
632 | [AC_MSG_RESULT([yes]) | |
633 | OLD_ICONV=UnfortunatelyYes]) | |
634 | ||
635 | GIT_UNSTASH_FLAGS($ICONVDIR) | |
636 | ||
637 | AC_SUBST(OLD_ICONV) | |
638 | ||
639 | ## Checks for typedefs, structures, and compiler characteristics. | |
640 | AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) | |
641 | # | |
642 | TYPE_SOCKLEN_T | |
643 | case $ac_cv_type_socklen_t in | |
644 | yes) ;; | |
645 | *) AC_SUBST([SOCKLEN_T], [$git_cv_socklen_t_equiv]) ;; | |
646 | esac | |
647 | ||
648 | # Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. | |
649 | AC_CHECK_MEMBER(struct dirent.d_ino, | |
650 | [NO_D_INO_IN_DIRENT=], | |
651 | [NO_D_INO_IN_DIRENT=YesPlease], | |
652 | [#include <dirent.h>]) | |
653 | AC_SUBST(NO_D_INO_IN_DIRENT) | |
654 | # | |
655 | # Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks | |
656 | # d_type in struct dirent (latest Cygwin -- will be fixed soonish). | |
657 | AC_CHECK_MEMBER(struct dirent.d_type, | |
658 | [NO_D_TYPE_IN_DIRENT=], | |
659 | [NO_D_TYPE_IN_DIRENT=YesPlease], | |
660 | [#include <dirent.h>]) | |
661 | AC_SUBST(NO_D_TYPE_IN_DIRENT) | |
662 | # | |
663 | # Define NO_SOCKADDR_STORAGE if your platform does not have struct | |
664 | # sockaddr_storage. | |
665 | AC_CHECK_TYPE(struct sockaddr_storage, | |
666 | [NO_SOCKADDR_STORAGE=], | |
667 | [NO_SOCKADDR_STORAGE=YesPlease],[ | |
668 | #include <sys/types.h> | |
669 | #include <sys/socket.h> | |
670 | ]) | |
671 | AC_SUBST(NO_SOCKADDR_STORAGE) | |
672 | # | |
673 | # Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). | |
674 | AC_CHECK_TYPE([struct addrinfo],[ | |
675 | GIT_CHECK_FUNC([getaddrinfo], | |
676 | [NO_IPV6=], | |
677 | [NO_IPV6=YesPlease]) | |
678 | ],[NO_IPV6=YesPlease],[ | |
679 | #include <sys/types.h> | |
680 | #include <sys/socket.h> | |
681 | #include <netdb.h> | |
682 | ]) | |
683 | AC_SUBST(NO_IPV6) | |
684 | # | |
685 | # Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.) | |
686 | # do not support the 'size specifiers' introduced by C99, namely ll, hh, | |
687 | # j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t). | |
688 | # some C compilers supported these specifiers prior to C99 as an extension. | |
689 | AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers], | |
690 | [ac_cv_c_c99_format], | |
691 | [# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c | |
692 | AC_RUN_IFELSE( | |
693 | [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], | |
694 | [[char buf[64]; | |
695 | if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5) | |
696 | return 1; | |
697 | else if (strcmp(buf, "12345")) | |
698 | return 2;]])], | |
699 | [ac_cv_c_c99_format=yes], | |
700 | [ac_cv_c_c99_format=no]) | |
701 | ]) | |
702 | if test $ac_cv_c_c99_format = no; then | |
703 | NO_C99_FORMAT=YesPlease | |
704 | else | |
705 | NO_C99_FORMAT= | |
706 | fi | |
707 | AC_SUBST(NO_C99_FORMAT) | |
708 | # | |
709 | # Define FREAD_READS_DIRECTORIES if your are on a system which succeeds | |
710 | # when attempting to read from an fopen'ed directory. | |
711 | AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], | |
712 | [ac_cv_fread_reads_directories], | |
713 | [ | |
714 | AC_RUN_IFELSE( | |
715 | [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], | |
716 | [[char c; | |
717 | FILE *f = fopen(".", "r"); | |
718 | return f && fread(&c, 1, 1, f)]])], | |
719 | [ac_cv_fread_reads_directories=no], | |
720 | [ac_cv_fread_reads_directories=yes]) | |
721 | ]) | |
722 | if test $ac_cv_fread_reads_directories = yes; then | |
723 | FREAD_READS_DIRECTORIES=UnfortunatelyYes | |
724 | else | |
725 | FREAD_READS_DIRECTORIES= | |
726 | fi | |
727 | AC_SUBST(FREAD_READS_DIRECTORIES) | |
728 | # | |
729 | # Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() | |
730 | # or vsnprintf() return -1 instead of number of characters which would | |
731 | # have been written to the final string if enough space had been available. | |
732 | AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], | |
733 | [ac_cv_snprintf_returns_bogus], | |
734 | [ | |
735 | AC_RUN_IFELSE( | |
736 | [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT | |
737 | #include "stdarg.h" | |
738 | ||
739 | int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) | |
740 | { | |
741 | int ret; | |
742 | va_list ap; | |
743 | va_start(ap, format); | |
744 | ret = vsnprintf(str, maxsize, format, ap); | |
745 | va_end(ap); | |
746 | return ret; | |
747 | }], | |
748 | [[char buf[6]; | |
749 | if (test_vsnprintf(buf, 3, "%s", "12345") != 5 | |
750 | || strcmp(buf, "12")) return 1; | |
751 | if (snprintf(buf, 3, "%s", "12345") != 5 | |
752 | || strcmp(buf, "12")) return 1]])], | |
753 | [ac_cv_snprintf_returns_bogus=no], | |
754 | [ac_cv_snprintf_returns_bogus=yes]) | |
755 | ]) | |
756 | if test $ac_cv_snprintf_returns_bogus = yes; then | |
757 | SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes | |
758 | else | |
759 | SNPRINTF_RETURNS_BOGUS= | |
760 | fi | |
761 | AC_SUBST(SNPRINTF_RETURNS_BOGUS) | |
762 | ||
763 | ||
764 | ## Checks for library functions. | |
765 | ## (in default C library and libraries checked by AC_CHECK_LIB) | |
766 | AC_MSG_NOTICE([CHECKS for library functions]) | |
767 | # | |
768 | # Define NO_LIBGEN_H if you don't have libgen.h. | |
769 | AC_CHECK_HEADER([libgen.h], | |
770 | [NO_LIBGEN_H=], | |
771 | [NO_LIBGEN_H=YesPlease]) | |
772 | AC_SUBST(NO_LIBGEN_H) | |
773 | # | |
774 | # Define HAVE_PATHS_H if you have paths.h. | |
775 | AC_CHECK_HEADER([paths.h], | |
776 | [HAVE_PATHS_H=YesPlease], | |
777 | [HAVE_PATHS_H=]) | |
778 | AC_SUBST(HAVE_PATHS_H) | |
779 | # | |
780 | # Define NO_STRCASESTR if you don't have strcasestr. | |
781 | GIT_CHECK_FUNC(strcasestr, | |
782 | [NO_STRCASESTR=], | |
783 | [NO_STRCASESTR=YesPlease]) | |
784 | AC_SUBST(NO_STRCASESTR) | |
785 | # | |
786 | # Define NO_MEMMEM if you don't have memmem. | |
787 | GIT_CHECK_FUNC(memmem, | |
788 | [NO_MEMMEM=], | |
789 | [NO_MEMMEM=YesPlease]) | |
790 | AC_SUBST(NO_MEMMEM) | |
791 | # | |
792 | # Define NO_STRLCPY if you don't have strlcpy. | |
793 | GIT_CHECK_FUNC(strlcpy, | |
794 | [NO_STRLCPY=], | |
795 | [NO_STRLCPY=YesPlease]) | |
796 | AC_SUBST(NO_STRLCPY) | |
797 | # | |
798 | # Define NO_UINTMAX_T if your platform does not have uintmax_t | |
799 | AC_CHECK_TYPE(uintmax_t, | |
800 | [NO_UINTMAX_T=], | |
801 | [NO_UINTMAX_T=YesPlease],[ | |
802 | #include <inttypes.h> | |
803 | ]) | |
804 | AC_SUBST(NO_UINTMAX_T) | |
805 | # | |
806 | # Define NO_STRTOUMAX if you don't have strtoumax in the C library. | |
807 | GIT_CHECK_FUNC(strtoumax, | |
808 | [NO_STRTOUMAX=], | |
809 | [NO_STRTOUMAX=YesPlease]) | |
810 | AC_SUBST(NO_STRTOUMAX) | |
811 | # | |
812 | # Define NO_SETENV if you don't have setenv in the C library. | |
813 | GIT_CHECK_FUNC(setenv, | |
814 | [NO_SETENV=], | |
815 | [NO_SETENV=YesPlease]) | |
816 | AC_SUBST(NO_SETENV) | |
817 | # | |
818 | # Define NO_UNSETENV if you don't have unsetenv in the C library. | |
819 | GIT_CHECK_FUNC(unsetenv, | |
820 | [NO_UNSETENV=], | |
821 | [NO_UNSETENV=YesPlease]) | |
822 | AC_SUBST(NO_UNSETENV) | |
823 | # | |
824 | # Define NO_MKDTEMP if you don't have mkdtemp in the C library. | |
825 | GIT_CHECK_FUNC(mkdtemp, | |
826 | [NO_MKDTEMP=], | |
827 | [NO_MKDTEMP=YesPlease]) | |
828 | AC_SUBST(NO_MKDTEMP) | |
829 | # | |
830 | # Define NO_MKSTEMPS if you don't have mkstemps in the C library. | |
831 | GIT_CHECK_FUNC(mkstemps, | |
832 | [NO_MKSTEMPS=], | |
833 | [NO_MKSTEMPS=YesPlease]) | |
834 | AC_SUBST(NO_MKSTEMPS) | |
835 | # | |
836 | # | |
837 | # Define NO_MMAP if you want to avoid mmap. | |
838 | # | |
839 | # Define NO_ICONV if your libc does not properly support iconv. | |
840 | ||
841 | ||
842 | ## Other checks. | |
843 | # Define USE_PIC if you need the main git objects to be built with -fPIC | |
844 | # in order to build and link perl/Git.so. x86-64 seems to need this. | |
845 | # | |
846 | # Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. | |
847 | # Enable it on Windows. By default, symrefs are still used. | |
848 | # | |
849 | # Define NO_PTHREADS if we do not have pthreads. | |
850 | # | |
851 | # Define PTHREAD_LIBS to the linker flag used for Pthread support. | |
852 | AC_DEFUN([PTHREADTEST_SRC], [ | |
853 | #include <pthread.h> | |
854 | ||
855 | int main(void) | |
856 | { | |
857 | pthread_mutex_t test_mutex; | |
858 | int retcode = 0; | |
859 | retcode |= pthread_mutex_init(&test_mutex,(void *)0); | |
860 | retcode |= pthread_mutex_lock(&test_mutex); | |
861 | retcode |= pthread_mutex_unlock(&test_mutex); | |
862 | return retcode; | |
863 | } | |
864 | ]) | |
865 | ||
866 | dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM( | |
867 | dnl [[#include <pthread.h>]], | |
868 | dnl [[pthread_mutex_t test_mutex;]] | |
869 | dnl )]) | |
870 | ||
871 | NO_PTHREADS=UnfortunatelyYes | |
872 | PTHREAD_LIBS= | |
873 | ||
874 | if test -n "$USER_NOPTHREAD"; then | |
875 | AC_MSG_NOTICE([Skipping POSIX Threads at user request.]) | |
876 | # handle these separately since PTHREAD_CFLAGS could be '-lpthreads | |
877 | # -D_REENTRANT' or some such. | |
878 | elif test -z "$PTHREAD_CFLAGS"; then | |
879 | threads_found=no | |
880 | for opt in -mt -pthread -lpthread; do | |
881 | old_CFLAGS="$CFLAGS" | |
882 | CFLAGS="$opt $CFLAGS" | |
883 | AC_MSG_CHECKING([Checking for POSIX Threads with '$opt']) | |
884 | AC_LINK_IFELSE(PTHREADTEST_SRC, | |
885 | [AC_MSG_RESULT([yes]) | |
886 | NO_PTHREADS= | |
887 | PTHREAD_LIBS="$opt" | |
888 | PTHREAD_CFLAGS="$opt" | |
889 | threads_found=yes | |
890 | break | |
891 | ], | |
892 | [AC_MSG_RESULT([no])]) | |
893 | CFLAGS="$old_CFLAGS" | |
894 | done | |
895 | if test $threads_found != yes; then | |
896 | AC_CHECK_LIB([pthread], [pthread_create], | |
897 | [PTHREAD_LIBS="-lpthread"], | |
898 | [NO_PTHREADS=UnfortunatelyYes]) | |
899 | fi | |
900 | else | |
901 | old_CFLAGS="$CFLAGS" | |
902 | CFLAGS="$PTHREAD_CFLAGS $CFLAGS" | |
903 | AC_MSG_CHECKING([Checking for POSIX Threads with '$PTHREAD_CFLAGS']) | |
904 | AC_LINK_IFELSE(PTHREADTEST_SRC, | |
905 | [AC_MSG_RESULT([yes]) | |
906 | NO_PTHREADS= | |
907 | PTHREAD_LIBS="$PTHREAD_CFLAGS" | |
908 | ], | |
909 | [AC_MSG_RESULT([no])]) | |
910 | ||
911 | CFLAGS="$old_CFLAGS" | |
912 | fi | |
913 | ||
914 | CFLAGS="$old_CFLAGS" | |
915 | ||
916 | AC_SUBST(PTHREAD_CFLAGS) | |
917 | AC_SUBST(PTHREAD_LIBS) | |
918 | AC_SUBST(NO_PTHREADS) | |
919 | ||
920 | ## Output files | |
921 | AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"]) | |
922 | AC_OUTPUT | |
923 | ||
924 | ||
925 | ## Cleanup | |
926 | rm -f "${config_append}" |