| blob | e1255506a636722031c58398cb33056c43cffed3 |
1 # -*- Autoconf -*-
2 # Process this file with autoconf to produce a configure script.
4 ## Definitions of private macros.
6 # GIT_CONF_APPEND_LINE(LINE)
7 # --------------------------
8 # Append LINE to file ${config_append}
9 AC_DEFUN([GIT_CONF_APPEND_LINE],
10 [echo "$1" >> "${config_append}"])
12 # GIT_ARG_SET_PATH(PROGRAM)
13 # -------------------------
14 # Provide --with-PROGRAM=PATH option to set PATH to PROGRAM
15 # Optional second argument allows setting NO_PROGRAM=YesPlease if
16 # --without-PROGRAM version used.
17 AC_DEFUN([GIT_ARG_SET_PATH],
18 [AC_ARG_WITH([$1],
19 [AS_HELP_STRING([--with-$1=PATH],
20 [provide PATH to $1])],
21 [GIT_CONF_APPEND_PATH([$1], [$2])],
22 [])])
24 # GIT_CONF_APPEND_PATH(PROGRAM)
25 # -----------------------------
26 # Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH
27 # Used by GIT_ARG_SET_PATH(PROGRAM)
28 # Optional second argument allows setting NO_PROGRAM=YesPlease if
29 # --without-PROGRAM is used.
30 AC_DEFUN([GIT_CONF_APPEND_PATH],
31 [m4_pushdef([GIT_UC_PROGRAM], m4_toupper([$1]))dnl
32 PROGRAM=GIT_UC_PROGRAM
33 if test "$withval" = "no"; then
34 if test -n "$2"; then
35 GIT_UC_PROGRAM[]_PATH=$withval
36 AC_MSG_NOTICE([Disabling use of ${PROGRAM}])
37 GIT_CONF_APPEND_LINE(NO_${PROGRAM}=YesPlease)
38 GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=)
39 else
40 AC_MSG_ERROR([You cannot use git without $1])
41 fi
42 else
43 if test "$withval" = "yes"; then
44 AC_MSG_WARN([You should provide path for --with-$1=PATH])
45 else
46 GIT_UC_PROGRAM[]_PATH=$withval
47 AC_MSG_NOTICE([Setting GIT_UC_PROGRAM[]_PATH to $withval])
48 GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval)
49 fi
50 fi
51 m4_popdef([GIT_UC_PROGRAM])])
53 # GIT_PARSE_WITH(PACKAGE)
54 # -----------------------
55 # For use in AC_ARG_WITH action-if-found, for packages default ON.
56 # * Set NO_PACKAGE=YesPlease for --without-PACKAGE
57 # * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH
58 # * Unset NO_PACKAGE for --with-PACKAGE without ARG
59 AC_DEFUN([GIT_PARSE_WITH],
60 [m4_pushdef([GIT_UC_PACKAGE], m4_toupper([$1]))dnl
61 PACKAGE=GIT_UC_PACKAGE
62 if test "$withval" = "no"; then
63 NO_[]GIT_UC_PACKAGE=YesPlease
64 elif test "$withval" = "yes"; then
65 NO_[]GIT_UC_PACKAGE=
66 else
67 NO_[]GIT_UC_PACKAGE=
68 GIT_UC_PACKAGE[]DIR=$withval
69 AC_MSG_NOTICE([Setting GIT_UC_PACKAGE[]DIR to $withval])
70 GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval)
71 fi
72 m4_popdef([GIT_UC_PACKAGE])])
74 # GIT_PARSE_WITH_SET_MAKE_VAR(WITHNAME, VAR, HELP_TEXT)
75 # -----------------------------------------------------
76 # Set VAR to the value specied by --with-WITHNAME.
77 # No verification of arguments is performed, but warnings are issued
78 # if either 'yes' or 'no' is specified.
79 # HELP_TEXT is presented when --help is called.
80 # This is a direct way to allow setting variables in the Makefile.
81 AC_DEFUN([GIT_PARSE_WITH_SET_MAKE_VAR],
82 [AC_ARG_WITH([$1],
83 [AS_HELP_STRING([--with-$1=VALUE], $3)],
84 if test -n "$withval"; then
85 if test "$withval" = "yes" -o "$withval" = "no"; then
86 AC_MSG_WARN([You likely do not want either 'yes' or 'no' as]
87 [a value for $1 ($2). Maybe you do...?])
88 fi
89 AC_MSG_NOTICE([Setting $2 to $withval])
90 GIT_CONF_APPEND_LINE($2=$withval)
91 fi)])# GIT_PARSE_WITH_SET_MAKE_VAR
93 #
94 # GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE)
95 # -----------------------------------------
96 # Similar to AC_CHECK_FUNC, but on systems that do not generate
97 # warnings for missing prototypes (e.g. FreeBSD when compiling without
98 # -Wall), it does not work. By looking for function definition in
99 # libraries, this problem can be worked around.
100 AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[
101 AC_SEARCH_LIBS([$1],,
102 [$2],[$3])
103 ],[$3])])
105 #
106 # GIT_STASH_FLAGS(BASEPATH_VAR)
107 # -----------------------------
108 # Allow for easy stashing of LDFLAGS and CPPFLAGS before running
109 # tests that may want to take user settings into account.
110 AC_DEFUN([GIT_STASH_FLAGS],[
111 if test -n "$1"; then
112 old_CPPFLAGS="$CPPFLAGS"
113 old_LDFLAGS="$LDFLAGS"
114 CPPFLAGS="-I$1/include $CPPFLAGS"
115 LDFLAGS="-L$1/$lib $LDFLAGS"
116 fi
117 ])
119 dnl
120 dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR)
121 dnl -----------------------------
122 dnl Restore the stashed *FLAGS values.
123 AC_DEFUN([GIT_UNSTASH_FLAGS],[
124 if test -n "$1"; then
125 CPPFLAGS="$old_CPPFLAGS"
126 LDFLAGS="$old_LDFLAGS"
127 fi
128 ])
130 ## Configure body starts here.
132 AC_PREREQ(2.59)
133 AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org])
135 AC_CONFIG_SRCDIR([git.c])
137 config_file=config.mak.autogen
138 config_append=config.mak.append
139 config_in=config.mak.in
141 echo "# ${config_append}. Generated by configure." > "${config_append}"
143 # Directories holding "saner" versions of common or POSIX binaries.
144 AC_ARG_WITH([sane-tool-path],
145 [AS_HELP_STRING(
146 [--with-sane-tool-path=DIR-1[[:DIR-2...:DIR-n]]],
147 [Directories to prepend to PATH in build system and generated scripts])],
148 [if test "$withval" = "no"; then
149 withval=''
150 else
151 AC_MSG_NOTICE([Setting SANE_TOOL_PATH to '$withval'])
152 fi
153 GIT_CONF_APPEND_LINE([SANE_TOOL_PATH=$withval])],
154 [# If the "--with-sane-tool-path" option was not given, don't touch
155 # SANE_TOOL_PATH here, but let defaults in Makefile take care of it.
156 # This should minimize spurious differences in the behaviour of the
157 # Git build system when configure is used w.r.t. when it is not.
158 :])
160 ## Site configuration related to programs (before tests)
161 ## --with-PACKAGE[=ARG] and --without-PACKAGE
162 #
163 # Set lib to alternative name of lib directory (e.g. lib64)
164 AC_ARG_WITH([lib],
165 [AS_HELP_STRING([--with-lib=ARG],
166 [ARG specifies alternative name for lib directory])],
167 [if test "$withval" = "no" || test "$withval" = "yes"; then
168 AC_MSG_WARN([You should provide name for --with-lib=ARG])
169 else
170 lib=$withval
171 AC_MSG_NOTICE([Setting lib to '$lib'])
172 GIT_CONF_APPEND_LINE(lib=$withval)
173 fi])
175 if test -z "$lib"; then
176 AC_MSG_NOTICE([Setting lib to 'lib' (the default)])
177 lib=lib
178 fi
180 AC_ARG_ENABLE([pthreads],
181 [AS_HELP_STRING([--enable-pthreads=FLAGS],
182 [FLAGS is the value to pass to the compiler to enable POSIX Threads.]
183 [The default if FLAGS is not specified is to try first -pthread]
184 [and then -lpthread.]
185 [--without-pthreads will disable threading.])],
186 [
187 if test "x$enableval" = "xyes"; then
188 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads])
189 elif test "x$enableval" != "xno"; then
190 PTHREAD_CFLAGS=$enableval
191 AC_MSG_NOTICE([Setting '$PTHREAD_CFLAGS' as the FLAGS to enable POSIX Threads])
192 else
193 AC_MSG_NOTICE([POSIX Threads will be disabled.])
194 NO_PTHREADS=YesPlease
195 USER_NOPTHREAD=1
196 fi],
197 [
198 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.])
199 ])
201 # Define option to enable JavaScript minification
202 AC_ARG_ENABLE([jsmin],
203 [AS_HELP_STRING([--enable-jsmin=PATH],
204 [PATH is the name of a JavaScript minifier or the absolute path to one.])],
205 [
206 JSMIN=$enableval;
207 AC_MSG_NOTICE([Setting JSMIN to '$JSMIN' to enable JavaScript minifying])
208 GIT_CONF_APPEND_LINE(JSMIN=$enableval);
209 ])
211 # Define option to enable CSS minification
212 AC_ARG_ENABLE([cssmin],
213 [AS_HELP_STRING([--enable-cssmin=PATH],
214 [PATH is the name of a CSS minifier or the absolute path to one.])],
215 [
216 CSSMIN=$enableval;
217 AC_MSG_NOTICE([Setting CSSMIN to '$CSSMIN' to enable CSS minifying])
218 GIT_CONF_APPEND_LINE(CSSMIN=$enableval);
219 ])
221 ## Site configuration (override autodetection)
222 ## --with-PACKAGE[=ARG] and --without-PACKAGE
223 AC_MSG_NOTICE([CHECKS for site configuration])
224 #
225 # Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
226 # tests. These tests take up a significant amount of the total test time
227 # but are not needed unless you plan to talk to SVN repos.
228 #
229 # Define PPC_SHA1 environment variable when running make to make use of
230 # a bundled SHA1 routine optimized for PowerPC.
231 #
232 # Define NO_OPENSSL environment variable if you do not have OpenSSL.
233 # This also implies BLK_SHA1.
234 #
235 # Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
236 # /foo/bar/include and /foo/bar/lib directories.
237 AC_ARG_WITH(openssl,
238 AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
239 AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),
240 GIT_PARSE_WITH([openssl]))
242 # Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be
243 # able to use Perl-compatible regular expressions.
244 #
245 # Define LIBPCREDIR=/foo/bar if your libpcre header and library files are in
246 # /foo/bar/include and /foo/bar/lib directories.
247 #
248 AC_ARG_WITH(libpcre,
249 AS_HELP_STRING([--with-libpcre],[support Perl-compatible regexes (default is NO)])
250 AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]),
251 if test "$withval" = "no"; then
252 USE_LIBPCRE=
253 elif test "$withval" = "yes"; then
254 USE_LIBPCRE=YesPlease
255 else
256 USE_LIBPCRE=YesPlease
257 LIBPCREDIR=$withval
258 AC_MSG_NOTICE([Setting LIBPCREDIR to $withval])
259 GIT_CONF_APPEND_LINE(LIBPCREDIR=$withval)
260 fi)
261 #
262 # Define NO_CURL if you do not have curl installed. git-http-pull and
263 # git-http-push are not built, and you cannot use http:// and https://
264 # transports.
265 #
266 # Define CURLDIR=/foo/bar if your curl header and library files are in
267 # /foo/bar/include and /foo/bar/lib directories.
268 AC_ARG_WITH(curl,
269 AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
270 AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]),
271 GIT_PARSE_WITH(curl))
272 #
273 # Define NO_EXPAT if you do not have expat installed. git-http-push is
274 # not built, and you cannot push using http:// and https:// transports.
275 #
276 # Define EXPATDIR=/foo/bar if your expat header and library files are in
277 # /foo/bar/include and /foo/bar/lib directories.
278 AC_ARG_WITH(expat,
279 AS_HELP_STRING([--with-expat],
280 [support git-push using http:// and https:// transports via WebDAV (default is YES)])
281 AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]),
282 GIT_PARSE_WITH(expat))
283 #
284 # Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
285 # installed in /sw, but don't want GIT to link against any libraries
286 # installed there. If defined you may specify your own (or Fink's)
287 # include directories and library directories by defining CFLAGS
288 # and LDFLAGS appropriately.
289 #
290 # Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
291 # have DarwinPorts installed in /opt/local, but don't want GIT to
292 # link against any libraries installed there. If defined you may
293 # specify your own (or DarwinPort's) include directories and
294 # library directories by defining CFLAGS and LDFLAGS appropriately.
295 #
296 # Define NO_MMAP if you want to avoid mmap.
297 #
298 # Define NO_ICONV if your libc does not properly support iconv.
299 AC_ARG_WITH(iconv,
300 AS_HELP_STRING([--without-iconv],
301 [if your architecture doesn't properly support iconv])
302 AS_HELP_STRING([--with-iconv=PATH],
303 [PATH is prefix for libiconv library and headers])
304 AS_HELP_STRING([],
305 [used only if you need linking with libiconv]),
306 GIT_PARSE_WITH(iconv))
308 ## --enable-FEATURE[=ARG] and --disable-FEATURE
309 #
310 # Define USE_NSEC below if you want git to care about sub-second file mtimes
311 # and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
312 # it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
313 # randomly break unless your underlying filesystem supports those sub-second
314 # times (my ext3 doesn't).
315 #
316 # Define USE_STDEV below if you want git to care about the underlying device
317 # change being considered an inode change from the update-index perspective.
319 #
320 # Allow user to set ETC_GITCONFIG variable
321 GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG,
322 Use VALUE instead of /etc/gitconfig as the
323 global git configuration file.
324 If VALUE is not fully qualified it will be interpreted
325 as a path relative to the computed prefix at runtime.)
327 #
328 # Allow user to set ETC_GITATTRIBUTES variable
329 GIT_PARSE_WITH_SET_MAKE_VAR(gitattributes, ETC_GITATTRIBUTES,
330 Use VALUE instead of /etc/gitattributes as the
331 global git attributes file.
332 If VALUE is not fully qualified it will be interpreted
333 as a path relative to the computed prefix at runtime.)
335 #
336 # Allow user to set the default pager
337 GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER,
338 Use VALUE as the fall-back pager instead of 'less'.
339 This is used by things like 'git log' when the user
340 does not specify a pager to use through alternate
341 methods. eg: /usr/bin/pager)
342 #
343 # Allow user to set the default editor
344 GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR,
345 Use VALUE as the fall-back editor instead of 'vi'.
346 This is used by things like 'git commit' when the user
347 does not specify a preferred editor through other
348 methods. eg: /usr/bin/editor)
350 #
351 # Define SHELL_PATH to provide path to shell.
352 GIT_ARG_SET_PATH(shell)
353 #
354 # Define PERL_PATH to provide path to Perl.
355 GIT_ARG_SET_PATH(perl)
356 #
357 # Define PYTHON_PATH to provide path to Python.
358 GIT_ARG_SET_PATH(python, allow-without)
359 #
360 # Define ZLIB_PATH to provide path to zlib.
361 GIT_ARG_SET_PATH(zlib)
362 #
363 # Declare the with-tcltk/without-tcltk options.
364 AC_ARG_WITH(tcltk,
365 AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)])
366 AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.])
367 AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if])
368 AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),
369 GIT_PARSE_WITH(tcltk))
370 #
373 ## Checks for programs.
374 AC_MSG_NOTICE([CHECKS for programs])
375 #
376 AC_PROG_CC([cc gcc])
377 AC_C_INLINE
378 case $ac_cv_c_inline in
379 inline | yes | no) ;;
380 *) AC_SUBST([INLINE], [$ac_cv_c_inline]) ;;
381 esac
383 # which switch to pass runtime path to dynamic libraries to the linker
384 AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [
385 SAVE_LDFLAGS="${LDFLAGS}"
386 LDFLAGS="${SAVE_LDFLAGS} -R /"
387 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no])
388 LDFLAGS="${SAVE_LDFLAGS}"
389 ])
390 if test "$git_cv_ld_dashr" = "yes"; then
391 AC_SUBST(CC_LD_DYNPATH, [-R])
392 else
393 AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [
394 SAVE_LDFLAGS="${LDFLAGS}"
395 LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/"
396 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no])
397 LDFLAGS="${SAVE_LDFLAGS}"
398 ])
399 if test "$git_cv_ld_wl_rpath" = "yes"; then
400 AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,])
401 else
402 AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [
403 SAVE_LDFLAGS="${LDFLAGS}"
404 LDFLAGS="${SAVE_LDFLAGS} -rpath /"
405 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no])
406 LDFLAGS="${SAVE_LDFLAGS}"
407 ])
408 if test "$git_cv_ld_rpath" = "yes"; then
409 AC_SUBST(CC_LD_DYNPATH, [-rpath])
410 else
411 AC_MSG_WARN([linker does not support runtime path to dynamic libraries])
412 fi
413 fi
414 fi
415 #AC_PROG_INSTALL # needs install-sh or install.sh in sources
416 AC_CHECK_TOOLS(AR, [gar ar], :)
417 AC_CHECK_PROGS(TAR, [gtar tar])
418 AC_CHECK_PROGS(DIFF, [gnudiff gdiff diff])
419 # TCLTK_PATH will be set to some value if we want Tcl/Tk
420 # or will be empty otherwise.
421 if test -z "$NO_TCLTK"; then
422 if test "$with_tcltk" = ""; then
423 # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'.
424 TCLTK_PATH=wish
425 AC_SUBST(TCLTK_PATH)
426 elif test "$with_tcltk" = "yes"; then
427 # Tcl/Tk check requested.
428 AC_CHECK_PROGS(TCLTK_PATH, [wish], )
429 else
430 AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk])
431 TCLTK_PATH="$with_tcltk"
432 AC_SUBST(TCLTK_PATH)
433 fi
434 fi
435 AC_CHECK_PROGS(ASCIIDOC, [asciidoc])
436 if test -n "$ASCIIDOC"; then
437 AC_MSG_CHECKING([for asciidoc version])
438 asciidoc_version=`$ASCIIDOC --version 2>/dev/null`
439 case "${asciidoc_version}" in
440 asciidoc' '7*)
441 ASCIIDOC7=YesPlease
442 AC_MSG_RESULT([${asciidoc_version} > 7])
443 ;;
444 asciidoc' '8*)
445 ASCIIDOC7=
446 AC_MSG_RESULT([${asciidoc_version}])
447 ;;
448 *)
449 ASCIIDOC7=
450 AC_MSG_RESULT([${asciidoc_version} (unknown)])
451 ;;
452 esac
453 fi
454 AC_SUBST(ASCIIDOC7)
457 ## Checks for libraries.
458 AC_MSG_NOTICE([CHECKS for libraries])
459 #
460 # Define NO_OPENSSL environment variable if you do not have OpenSSL.
461 # Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
463 GIT_STASH_FLAGS($OPENSSLDIR)
465 AC_CHECK_LIB([crypto], [SHA1_Init],
466 [NEEDS_SSL_WITH_CRYPTO=],
467 [AC_CHECK_LIB([ssl], [SHA1_Init],
468 [NEEDS_SSL_WITH_CRYPTO=YesPlease],
469 [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])])
471 GIT_UNSTASH_FLAGS($OPENSSLDIR)
473 AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
474 AC_SUBST(NO_OPENSSL)
476 #
477 # Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be
478 # able to use Perl-compatible regular expressions.
479 #
481 if test -n "$USE_LIBPCRE"; then
483 GIT_STASH_FLAGS($LIBPCREDIR)
485 AC_CHECK_LIB([pcre], [pcre_version],
486 [USE_LIBPCRE=YesPlease],
487 [USE_LIBPCRE=])
489 GIT_UNSTASH_FLAGS($LIBPCREDIR)
491 AC_SUBST(USE_LIBPCRE)
493 fi
495 #
496 # Define NO_CURL if you do not have libcurl installed. git-http-pull and
497 # git-http-push are not built, and you cannot use http:// and https://
498 # transports.
500 GIT_STASH_FLAGS($CURLDIR)
502 AC_CHECK_LIB([curl], [curl_global_init],
503 [NO_CURL=],
504 [NO_CURL=YesPlease])
506 GIT_UNSTASH_FLAGS($CURLDIR)
508 AC_SUBST(NO_CURL)
510 #
511 # Define NO_EXPAT if you do not have expat installed. git-http-push is
512 # not built, and you cannot push using http:// and https:// transports.
514 GIT_STASH_FLAGS($EXPATDIR)
516 AC_CHECK_LIB([expat], [XML_ParserCreate],
517 [NO_EXPAT=],
518 [NO_EXPAT=YesPlease])
520 GIT_UNSTASH_FLAGS($EXPATDIR)
522 AC_SUBST(NO_EXPAT)
524 #
525 # Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and
526 # some Solaris installations).
527 # Define NO_ICONV if neither libc nor libiconv support iconv.
529 if test -z "$NO_ICONV"; then
531 GIT_STASH_FLAGS($ICONVDIR)
533 AC_DEFUN([ICONVTEST_SRC],
534 [AC_LANG_PROGRAM([#include <iconv.h>],
535 [iconv_open("", "");])])
537 if test -n "$ICONVDIR"; then
538 lib_order="-liconv -lc"
539 else
540 lib_order="-lc -liconv"
541 fi
543 NO_ICONV=YesPlease
545 for l in $lib_order; do
546 if test "$l" = "-liconv"; then
547 NEEDS_LIBICONV=YesPlease
548 else
549 NEEDS_LIBICONV=
550 fi
552 old_LIBS="$LIBS"
553 LIBS="$LIBS $l"
554 AC_MSG_CHECKING([for iconv in $l])
555 AC_LINK_IFELSE([ICONVTEST_SRC],
556 [AC_MSG_RESULT([yes])
557 NO_ICONV=
558 break],
559 [AC_MSG_RESULT([no])])
560 LIBS="$old_LIBS"
561 done
563 #in case of break
564 LIBS="$old_LIBS"
566 GIT_UNSTASH_FLAGS($ICONVDIR)
568 AC_SUBST(NEEDS_LIBICONV)
569 AC_SUBST(NO_ICONV)
571 if test -n "$NO_ICONV"; then
572 NEEDS_LIBICONV=
573 fi
575 fi
577 #
578 # Define NO_DEFLATE_BOUND if deflateBound is missing from zlib.
580 GIT_STASH_FLAGS($ZLIB_PATH)
582 AC_DEFUN([ZLIBTEST_SRC], [
583 AC_LANG_PROGRAM([#include <zlib.h>],
584 [deflateBound(0, 0);])])
585 AC_MSG_CHECKING([for deflateBound in -lz])
586 old_LIBS="$LIBS"
587 LIBS="$LIBS -lz"
588 AC_LINK_IFELSE([ZLIBTEST_SRC],
589 [AC_MSG_RESULT([yes])],
590 [AC_MSG_RESULT([no])
591 NO_DEFLATE_BOUND=yes])
592 LIBS="$old_LIBS"
594 GIT_UNSTASH_FLAGS($ZLIB_PATH)
596 AC_SUBST(NO_DEFLATE_BOUND)
598 #
599 # Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
600 # Patrick Mauritz).
601 AC_CHECK_LIB([c], [socket],
602 [NEEDS_SOCKET=],
603 [NEEDS_SOCKET=YesPlease])
604 AC_SUBST(NEEDS_SOCKET)
605 test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
607 #
608 # The next few tests will define NEEDS_RESOLV if linking with
609 # libresolv provides some of the functions we would normally get
610 # from libc.
611 NEEDS_RESOLV=
612 AC_SUBST(NEEDS_RESOLV)
613 #
614 # Define NO_INET_NTOP if linking with -lresolv is not enough.
615 # Solaris 2.7 in particular hos inet_ntop in -lresolv.
616 NO_INET_NTOP=
617 AC_SUBST(NO_INET_NTOP)
618 AC_CHECK_FUNC([inet_ntop],
619 [],
620 [AC_CHECK_LIB([resolv], [inet_ntop],
621 [NEEDS_RESOLV=YesPlease],
622 [NO_INET_NTOP=YesPlease])
623 ])
624 #
625 # Define NO_INET_PTON if linking with -lresolv is not enough.
626 # Solaris 2.7 in particular hos inet_pton in -lresolv.
627 NO_INET_PTON=
628 AC_SUBST(NO_INET_PTON)
629 AC_CHECK_FUNC([inet_pton],
630 [],
631 [AC_CHECK_LIB([resolv], [inet_pton],
632 [NEEDS_RESOLV=YesPlease],
633 [NO_INET_PTON=YesPlease])
634 ])
635 #
636 # Define NO_HSTRERROR if linking with -lresolv is not enough.
637 # Solaris 2.6 in particular has no hstrerror, even in -lresolv.
638 NO_HSTRERROR=
639 AC_CHECK_FUNC([hstrerror],
640 [],
641 [AC_CHECK_LIB([resolv], [hstrerror],
642 [NEEDS_RESOLV=YesPlease],
643 [NO_HSTRERROR=YesPlease])
644 ])
645 AC_SUBST(NO_HSTRERROR)
646 #
647 # If any of the above tests determined that -lresolv is needed at
648 # build-time, also set it here for remaining configure-time checks.
649 test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv"
651 AC_CHECK_LIB([c], [basename],
652 [NEEDS_LIBGEN=],
653 [NEEDS_LIBGEN=YesPlease])
654 AC_SUBST(NEEDS_LIBGEN)
655 test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen"
657 AC_CHECK_LIB([c], [gettext],
658 [LIBC_CONTAINS_LIBINTL=YesPlease],
659 [LIBC_CONTAINS_LIBINTL=])
660 AC_SUBST(LIBC_CONTAINS_LIBINTL)
662 #
663 # Define NO_GETTEXT if you don't want Git output to be translated.
664 # A translated Git requires GNU libintl or another gettext implementation
665 AC_CHECK_HEADER([libintl.h],
666 [NO_GETTEXT=],
667 [NO_GETTEXT=YesPlease])
668 AC_SUBST(NO_GETTEXT)
670 if test -z "$NO_GETTEXT"; then
671 test -n "$LIBC_CONTAINS_LIBINTL" || LIBS="$LIBS -lintl"
672 fi
674 ## Checks for header files.
675 AC_MSG_NOTICE([CHECKS for header files])
676 #
677 # Define NO_SYS_SELECT_H if you don't have sys/select.h.
678 AC_CHECK_HEADER([sys/select.h],
679 [NO_SYS_SELECT_H=],
680 [NO_SYS_SELECT_H=UnfortunatelyYes])
681 AC_SUBST(NO_SYS_SELECT_H)
682 #
683 # Define NO_SYS_POLL_H if you don't have sys/poll.h
684 AC_CHECK_HEADER([sys/poll.h],
685 [NO_SYS_POLL_H=],
686 [NO_SYS_POLL_H=UnfortunatelyYes])
687 AC_SUBST(NO_SYS_POLL_H)
688 #
689 # Define NO_INTTYPES_H if you don't have inttypes.h
690 AC_CHECK_HEADER([inttypes.h],
691 [NO_INTTYPES_H=],
692 [NO_INTTYPES_H=UnfortunatelyYes])
693 AC_SUBST(NO_INTTYPES_H)
694 #
695 # Define OLD_ICONV if your library has an old iconv(), where the second
696 # (input buffer pointer) parameter is declared with type (const char **).
697 AC_DEFUN([OLDICONVTEST_SRC], [
698 AC_LANG_PROGRAM([[
699 #include <iconv.h>
701 extern size_t iconv(iconv_t cd,
702 char **inbuf, size_t *inbytesleft,
703 char **outbuf, size_t *outbytesleft);
704 ]], [])])
706 GIT_STASH_FLAGS($ICONVDIR)
708 AC_MSG_CHECKING([for old iconv()])
709 AC_COMPILE_IFELSE([OLDICONVTEST_SRC],
710 [AC_MSG_RESULT([no])],
711 [AC_MSG_RESULT([yes])
712 OLD_ICONV=UnfortunatelyYes])
714 GIT_UNSTASH_FLAGS($ICONVDIR)
716 AC_SUBST(OLD_ICONV)
718 ## Checks for typedefs, structures, and compiler characteristics.
719 AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
720 #
721 TYPE_SOCKLEN_T
722 case $ac_cv_type_socklen_t in
723 yes) ;;
724 *) AC_SUBST([SOCKLEN_T], [$git_cv_socklen_t_equiv]) ;;
725 esac
727 # Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
728 AC_CHECK_MEMBER(struct dirent.d_ino,
729 [NO_D_INO_IN_DIRENT=],
730 [NO_D_INO_IN_DIRENT=YesPlease],
731 [#include <dirent.h>])
732 AC_SUBST(NO_D_INO_IN_DIRENT)
733 #
734 # Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
735 # d_type in struct dirent (latest Cygwin -- will be fixed soonish).
736 AC_CHECK_MEMBER(struct dirent.d_type,
737 [NO_D_TYPE_IN_DIRENT=],
738 [NO_D_TYPE_IN_DIRENT=YesPlease],
739 [#include <dirent.h>])
740 AC_SUBST(NO_D_TYPE_IN_DIRENT)
741 #
742 # Define NO_SOCKADDR_STORAGE if your platform does not have struct
743 # sockaddr_storage.
744 AC_CHECK_TYPE(struct sockaddr_storage,
745 [NO_SOCKADDR_STORAGE=],
746 [NO_SOCKADDR_STORAGE=YesPlease],[
747 #include <sys/types.h>
748 #include <sys/socket.h>
749 ])
750 AC_SUBST(NO_SOCKADDR_STORAGE)
751 #
752 # Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
753 AC_CHECK_TYPE([struct addrinfo],[
754 GIT_CHECK_FUNC([getaddrinfo],
755 [NO_IPV6=],
756 [NO_IPV6=YesPlease])
757 ],[NO_IPV6=YesPlease],[
758 #include <sys/types.h>
759 #include <sys/socket.h>
760 #include <netdb.h>
761 ])
762 AC_SUBST(NO_IPV6)
763 #
764 # Define NO_REGEX if you have no or inferior regex support in your C library.
765 AC_CACHE_CHECK([whether the platform regex can handle null bytes],
766 [ac_cv_c_excellent_regex], [
767 AC_EGREP_CPP(yippeeyeswehaveit,
768 AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
769 #include <regex.h>
770 ],
771 [#ifdef REG_STARTEND
772 yippeeyeswehaveit
773 #endif
774 ]),
775 [ac_cv_c_excellent_regex=yes],
776 [ac_cv_c_excellent_regex=no])
777 ])
778 if test $ac_cv_c_excellent_regex = yes; then
779 NO_REGEX=
780 else
781 NO_REGEX=YesPlease
782 fi
783 AC_SUBST(NO_REGEX)
784 #
785 # Define FREAD_READS_DIRECTORIES if your are on a system which succeeds
786 # when attempting to read from an fopen'ed directory.
787 AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory],
788 [ac_cv_fread_reads_directories],
789 [
790 AC_RUN_IFELSE(
791 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
792 [[char c;
793 FILE *f = fopen(".", "r");
794 return f && fread(&c, 1, 1, f)]])],
795 [ac_cv_fread_reads_directories=no],
796 [ac_cv_fread_reads_directories=yes])
797 ])
798 if test $ac_cv_fread_reads_directories = yes; then
799 FREAD_READS_DIRECTORIES=UnfortunatelyYes
800 else
801 FREAD_READS_DIRECTORIES=
802 fi
803 AC_SUBST(FREAD_READS_DIRECTORIES)
804 #
805 # Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf()
806 # or vsnprintf() return -1 instead of number of characters which would
807 # have been written to the final string if enough space had been available.
808 AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value],
809 [ac_cv_snprintf_returns_bogus],
810 [
811 AC_RUN_IFELSE(
812 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
813 #include "stdarg.h"
815 int test_vsnprintf(char *str, size_t maxsize, const char *format, ...)
816 {
817 int ret;
818 va_list ap;
819 va_start(ap, format);
820 ret = vsnprintf(str, maxsize, format, ap);
821 va_end(ap);
822 return ret;
823 }],
824 [[char buf[6];
825 if (test_vsnprintf(buf, 3, "%s", "12345") != 5
826 || strcmp(buf, "12")) return 1;
827 if (snprintf(buf, 3, "%s", "12345") != 5
828 || strcmp(buf, "12")) return 1]])],
829 [ac_cv_snprintf_returns_bogus=no],
830 [ac_cv_snprintf_returns_bogus=yes])
831 ])
832 if test $ac_cv_snprintf_returns_bogus = yes; then
833 SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes
834 else
835 SNPRINTF_RETURNS_BOGUS=
836 fi
837 AC_SUBST(SNPRINTF_RETURNS_BOGUS)
840 ## Checks for library functions.
841 ## (in default C library and libraries checked by AC_CHECK_LIB)
842 AC_MSG_NOTICE([CHECKS for library functions])
843 #
844 # Define NO_LIBGEN_H if you don't have libgen.h.
845 AC_CHECK_HEADER([libgen.h],
846 [NO_LIBGEN_H=],
847 [NO_LIBGEN_H=YesPlease])
848 AC_SUBST(NO_LIBGEN_H)
849 #
850 # Define HAVE_PATHS_H if you have paths.h.
851 AC_CHECK_HEADER([paths.h],
852 [HAVE_PATHS_H=YesPlease],
853 [HAVE_PATHS_H=])
854 AC_SUBST(HAVE_PATHS_H)
855 #
856 # Define HAVE_LIBCHARSET_H if have libcharset.h
857 AC_CHECK_HEADER([libcharset.h],
858 [HAVE_LIBCHARSET_H=YesPlease],
859 [HAVE_LIBCHARSET_H=])
860 AC_SUBST(HAVE_LIBCHARSET_H)
861 # Define CHARSET_LIB if libiconv does not export the locale_charset symbol
862 # and libcharset does
863 CHARSET_LIB=
864 AC_CHECK_LIB([iconv], [locale_charset],
865 [],
866 [AC_CHECK_LIB([charset], [locale_charset],
867 [CHARSET_LIB=-lcharset])
868 ]
869 )
870 AC_SUBST(CHARSET_LIB)
871 #
872 # Define NO_STRCASESTR if you don't have strcasestr.
873 GIT_CHECK_FUNC(strcasestr,
874 [NO_STRCASESTR=],
875 [NO_STRCASESTR=YesPlease])
876 AC_SUBST(NO_STRCASESTR)
877 #
878 # Define NO_STRTOK_R if you don't have strtok_r
879 GIT_CHECK_FUNC(strtok_r,
880 [NO_STRTOK_R=],
881 [NO_STRTOK_R=YesPlease])
882 AC_SUBST(NO_STRTOK_R)
883 #
884 # Define NO_FNMATCH if you don't have fnmatch
885 GIT_CHECK_FUNC(fnmatch,
886 [NO_FNMATCH=],
887 [NO_FNMATCH=YesPlease])
888 AC_SUBST(NO_FNMATCH)
889 #
890 # Define NO_FNMATCH_CASEFOLD if your fnmatch function doesn't have the
891 # FNM_CASEFOLD GNU extension.
892 AC_CACHE_CHECK([whether the fnmatch function supports the FNMATCH_CASEFOLD GNU extension],
893 [ac_cv_c_excellent_fnmatch], [
894 AC_EGREP_CPP(yippeeyeswehaveit,
895 AC_LANG_PROGRAM([
896 #include <fnmatch.h>
897 ],
898 [#ifdef FNM_CASEFOLD
899 yippeeyeswehaveit
900 #endif
901 ]),
902 [ac_cv_c_excellent_fnmatch=yes],
903 [ac_cv_c_excellent_fnmatch=no])
904 ])
905 if test $ac_cv_c_excellent_fnmatch = yes; then
906 NO_FNMATCH_CASEFOLD=
907 else
908 NO_FNMATCH_CASEFOLD=YesPlease
909 fi
910 AC_SUBST(NO_FNMATCH_CASEFOLD)
911 #
912 # Define NO_MEMMEM if you don't have memmem.
913 GIT_CHECK_FUNC(memmem,
914 [NO_MEMMEM=],
915 [NO_MEMMEM=YesPlease])
916 AC_SUBST(NO_MEMMEM)
917 #
918 # Define NO_STRLCPY if you don't have strlcpy.
919 GIT_CHECK_FUNC(strlcpy,
920 [NO_STRLCPY=],
921 [NO_STRLCPY=YesPlease])
922 AC_SUBST(NO_STRLCPY)
923 #
924 # Define NO_UINTMAX_T if your platform does not have uintmax_t
925 AC_CHECK_TYPE(uintmax_t,
926 [NO_UINTMAX_T=],
927 [NO_UINTMAX_T=YesPlease],[
928 #include <inttypes.h>
929 ])
930 AC_SUBST(NO_UINTMAX_T)
931 #
932 # Define NO_STRTOUMAX if you don't have strtoumax in the C library.
933 GIT_CHECK_FUNC(strtoumax,
934 [NO_STRTOUMAX=],
935 [NO_STRTOUMAX=YesPlease])
936 AC_SUBST(NO_STRTOUMAX)
937 #
938 # Define NO_SETENV if you don't have setenv in the C library.
939 GIT_CHECK_FUNC(setenv,
940 [NO_SETENV=],
941 [NO_SETENV=YesPlease])
942 AC_SUBST(NO_SETENV)
943 #
944 # Define NO_UNSETENV if you don't have unsetenv in the C library.
945 GIT_CHECK_FUNC(unsetenv,
946 [NO_UNSETENV=],
947 [NO_UNSETENV=YesPlease])
948 AC_SUBST(NO_UNSETENV)
949 #
950 # Define NO_MKDTEMP if you don't have mkdtemp in the C library.
951 GIT_CHECK_FUNC(mkdtemp,
952 [NO_MKDTEMP=],
953 [NO_MKDTEMP=YesPlease])
954 AC_SUBST(NO_MKDTEMP)
955 #
956 # Define NO_MKSTEMPS if you don't have mkstemps in the C library.
957 GIT_CHECK_FUNC(mkstemps,
958 [NO_MKSTEMPS=],
959 [NO_MKSTEMPS=YesPlease])
960 AC_SUBST(NO_MKSTEMPS)
961 #
962 # Define NO_INITGROUPS if you don't have initgroups in the C library.
963 GIT_CHECK_FUNC(initgroups,
964 [NO_INITGROUPS=],
965 [NO_INITGROUPS=YesPlease])
966 AC_SUBST(NO_INITGROUPS)
967 #
968 #
969 # Define NO_MMAP if you want to avoid mmap.
970 #
971 # Define NO_ICONV if your libc does not properly support iconv.
974 ## Other checks.
975 # Define USE_PIC if you need the main git objects to be built with -fPIC
976 # in order to build and link perl/Git.so. x86-64 seems to need this.
977 #
978 # Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
979 # Enable it on Windows. By default, symrefs are still used.
980 #
981 # Define NO_PTHREADS if we do not have pthreads.
982 #
983 # Define PTHREAD_LIBS to the linker flag used for Pthread support.
984 AC_DEFUN([PTHREADTEST_SRC], [
985 AC_LANG_PROGRAM([[
986 #include <pthread.h>
987 ]], [[
988 pthread_mutex_t test_mutex;
989 pthread_key_t test_key;
990 int retcode = 0;
991 retcode |= pthread_key_create(&test_key, (void *)0);
992 retcode |= pthread_mutex_init(&test_mutex,(void *)0);
993 retcode |= pthread_mutex_lock(&test_mutex);
994 retcode |= pthread_mutex_unlock(&test_mutex);
995 return retcode;
996 ]])])
998 dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM(
999 dnl [[#include <pthread.h>]],
1000 dnl [[pthread_mutex_t test_mutex;]]
1001 dnl )])
1003 NO_PTHREADS=UnfortunatelyYes
1004 PTHREAD_LIBS=
1006 if test -n "$USER_NOPTHREAD"; then
1007 AC_MSG_NOTICE([Skipping POSIX Threads at user request.])
1008 # handle these separately since PTHREAD_CFLAGS could be '-lpthreads
1009 # -D_REENTRANT' or some such.
1010 elif test -z "$PTHREAD_CFLAGS"; then
1011 threads_found=no
1012 for opt in -mt -pthread -lpthread; do
1013 old_CFLAGS="$CFLAGS"
1014 CFLAGS="$opt $CFLAGS"
1015 AC_MSG_CHECKING([Checking for POSIX Threads with '$opt'])
1016 AC_LINK_IFELSE([PTHREADTEST_SRC],
1017 [AC_MSG_RESULT([yes])
1018 NO_PTHREADS=
1019 PTHREAD_LIBS="$opt"
1020 PTHREAD_CFLAGS="$opt"
1021 threads_found=yes
1022 break
1023 ],
1024 [AC_MSG_RESULT([no])])
1025 CFLAGS="$old_CFLAGS"
1026 done
1027 if test $threads_found != yes; then
1028 AC_CHECK_LIB([pthread], [pthread_create],
1029 [PTHREAD_LIBS="-lpthread"],
1030 [NO_PTHREADS=UnfortunatelyYes])
1031 fi
1032 else
1033 old_CFLAGS="$CFLAGS"
1034 CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
1035 AC_MSG_CHECKING([Checking for POSIX Threads with '$PTHREAD_CFLAGS'])
1036 AC_LINK_IFELSE([PTHREADTEST_SRC],
1037 [AC_MSG_RESULT([yes])
1038 NO_PTHREADS=
1039 PTHREAD_LIBS="$PTHREAD_CFLAGS"
1040 ],
1041 [AC_MSG_RESULT([no])])
1043 CFLAGS="$old_CFLAGS"
1044 fi
1046 CFLAGS="$old_CFLAGS"
1048 AC_SUBST(PTHREAD_CFLAGS)
1049 AC_SUBST(PTHREAD_LIBS)
1050 AC_SUBST(NO_PTHREADS)
1052 ## Output files
1053 AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
1054 AC_OUTPUT
1057 ## Cleanup
1058 rm -f "${config_append}"