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55667714 JN |
1 | # -*- Autoconf -*- |
2 | # Process this file with autoconf to produce a configure script. | |
3 | ||
4 | AC_PREREQ(2.59) | |
3900145e | 5 | AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org]) |
55667714 JN |
6 | |
7 | AC_CONFIG_SRCDIR([git.c]) | |
8 | ||
9 | config_file=config.mak.autogen | |
d3a6db98 | 10 | config_append=config.mak.append |
55667714 JN |
11 | config_in=config.mak.in |
12 | ||
d3a6db98 JN |
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 | |
657b062d JN |
22 | # |
23 | # GIT_ARG_SET_PATH(PROGRAM) | |
24 | # ------------------------- | |
25 | # Provide --with-PROGRAM=PATH option to set PATH to PROGRAM | |
26 | AC_DEFUN([GIT_ARG_SET_PATH], | |
27 | [AC_ARG_WITH([$1], | |
28 | [AS_HELP_STRING([--with-$1=PATH], | |
29 | [provide PATH to $1])], | |
30 | [GIT_CONF_APPEND_PATH($1)],[]) | |
31 | ])# GIT_ARG_SET_PATH | |
32 | # | |
33 | # GIT_CONF_APPEND_PATH(PROGRAM) | |
34 | # ------------------------------ | |
35 | # Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH | |
36 | # Used by GIT_ARG_SET_PATH(PROGRAM) | |
37 | AC_DEFUN([GIT_CONF_APPEND_PATH], | |
38 | [PROGRAM=m4_toupper($1); \ | |
39 | if test "$withval" = "no"; then \ | |
b52b1d43 | 40 | AC_MSG_ERROR([You cannot use git without $1]); \ |
657b062d JN |
41 | else \ |
42 | if test "$withval" = "yes"; then \ | |
43 | AC_MSG_WARN([You should provide path for --with-$1=PATH]); \ | |
44 | else \ | |
e068f4f5 BW |
45 | m4_toupper($1)_PATH=$withval; \ |
46 | AC_MSG_NOTICE([Setting m4_toupper($1)_PATH to $withval]); \ | |
657b062d JN |
47 | GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \ |
48 | fi; \ | |
49 | fi; \ | |
50 | ]) # GIT_CONF_APPEND_PATH | |
a20b4d89 JN |
51 | # |
52 | # GIT_PARSE_WITH(PACKAGE) | |
53 | # ----------------------- | |
54 | # For use in AC_ARG_WITH action-if-found, for packages default ON. | |
55 | # * Set NO_PACKAGE=YesPlease for --without-PACKAGE | |
56 | # * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH | |
57 | # * Unset NO_PACKAGE for --with-PACKAGE without ARG | |
58 | AC_DEFUN([GIT_PARSE_WITH], | |
59 | [PACKAGE=m4_toupper($1); \ | |
60 | if test "$withval" = "no"; then \ | |
61 | m4_toupper(NO_$1)=YesPlease; \ | |
62 | elif test "$withval" = "yes"; then \ | |
63 | m4_toupper(NO_$1)=; \ | |
64 | else \ | |
65 | m4_toupper(NO_$1)=; \ | |
e068f4f5 BW |
66 | m4_toupper($1)DIR=$withval; \ |
67 | AC_MSG_NOTICE([Setting m4_toupper($1)DIR to $withval]); \ | |
a20b4d89 JN |
68 | GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \ |
69 | fi \ | |
70 | ])# GIT_PARSE_WITH | |
d3a6db98 | 71 | |
1689c5de DS |
72 | dnl |
73 | dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE) | |
74 | dnl ----------------------------------------- | |
75 | dnl Similar to AC_CHECK_FUNC, but on systems that do not generate | |
76 | dnl warnings for missing prototypes (e.g. FreeBSD when compiling without | |
77 | dnl -Wall), it does not work. By looking for function definition in | |
78 | dnl libraries, this problem can be worked around. | |
79 | AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[ | |
80 | AC_SEARCH_LIBS([$1],, | |
81 | [$2],[$3]) | |
82 | ],[$3])]) | |
a20b4d89 | 83 | ## Site configuration related to programs (before tests) |
c4b1b140 JN |
84 | ## --with-PACKAGE[=ARG] and --without-PACKAGE |
85 | # | |
10861bea RS |
86 | # Set lib to alternative name of lib directory (e.g. lib64) |
87 | AC_ARG_WITH([lib], | |
88 | [AS_HELP_STRING([--with-lib=ARG], | |
89 | [ARG specifies alternative name for lib directory])], | |
3c307bfb | 90 | [if test "$withval" = "no" || test "$withval" = "yes"; then \ |
10861bea RS |
91 | AC_MSG_WARN([You should provide name for --with-lib=ARG]); \ |
92 | else \ | |
e068f4f5 BW |
93 | lib=$withval; \ |
94 | AC_MSG_NOTICE([Setting lib to '$lib']); \ | |
10861bea RS |
95 | GIT_CONF_APPEND_LINE(lib=$withval); \ |
96 | fi; \ | |
97 | ],[]) | |
e068f4f5 BW |
98 | |
99 | if test -z "$lib"; then | |
100 | AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) | |
101 | lib=lib | |
102 | fi | |
10861bea | 103 | # |
465e649d JN |
104 | # Define SHELL_PATH to provide path to shell. |
105 | GIT_ARG_SET_PATH(shell) | |
106 | # | |
107 | # Define PERL_PATH to provide path to Perl. | |
108 | GIT_ARG_SET_PATH(perl) | |
109 | # | |
bef19da9 RS |
110 | # Define ZLIB_PATH to provide path to zlib. |
111 | GIT_ARG_SET_PATH(zlib) | |
112 | # | |
81b63c70 ER |
113 | # Declare the with-tcltk/without-tcltk options. |
114 | AC_ARG_WITH(tcltk, | |
115 | AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) | |
116 | AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) | |
117 | AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) | |
118 | AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\ | |
119 | GIT_PARSE_WITH(tcltk)) | |
120 | # | |
c4b1b140 JN |
121 | |
122 | ||
633b4239 | 123 | ## Checks for programs. |
fd22c027 | 124 | AC_MSG_NOTICE([CHECKS for programs]) |
f6719572 | 125 | # |
60a144f2 | 126 | AC_PROG_CC([cc gcc]) |
798a9450 | 127 | # which switch to pass runtime path to dynamic libraries to the linker |
a1a587ef | 128 | AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [ |
798a9450 GF |
129 | SAVE_LDFLAGS="${LDFLAGS}" |
130 | LDFLAGS="${SAVE_LDFLAGS} -R /" | |
a1a587ef | 131 | AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no]) |
798a9450 GF |
132 | LDFLAGS="${SAVE_LDFLAGS}" |
133 | ]) | |
a1a587ef | 134 | if test "$git_cv_ld_dashr" = "yes"; then |
798a9450 GF |
135 | AC_SUBST(CC_LD_DYNPATH, [-R]) |
136 | else | |
a1a587ef | 137 | AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [ |
798a9450 GF |
138 | SAVE_LDFLAGS="${LDFLAGS}" |
139 | LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/" | |
a1a587ef | 140 | AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no]) |
50a4b352 | 141 | LDFLAGS="${SAVE_LDFLAGS}" |
798a9450 | 142 | ]) |
a1a587ef | 143 | if test "$git_cv_ld_wl_rpath" = "yes"; then |
798a9450 GF |
144 | AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,]) |
145 | else | |
a1a587ef | 146 | AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [ |
798a9450 GF |
147 | SAVE_LDFLAGS="${LDFLAGS}" |
148 | LDFLAGS="${SAVE_LDFLAGS} -rpath /" | |
a1a587ef | 149 | AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no]) |
50a4b352 | 150 | LDFLAGS="${SAVE_LDFLAGS}" |
798a9450 | 151 | ]) |
a1a587ef | 152 | if test "$git_cv_ld_rpath" = "yes"; then |
798a9450 GF |
153 | AC_SUBST(CC_LD_DYNPATH, [-rpath]) |
154 | else | |
155 | AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) | |
156 | fi | |
157 | fi | |
158 | fi | |
fd22c027 | 159 | #AC_PROG_INSTALL # needs install-sh or install.sh in sources |
96e24abc | 160 | AC_CHECK_TOOLS(AR, [gar ar], :) |
fd22c027 | 161 | AC_CHECK_PROGS(TAR, [gtar tar]) |
81b63c70 ER |
162 | # TCLTK_PATH will be set to some value if we want Tcl/Tk |
163 | # or will be empty otherwise. | |
164 | if test -z "$NO_TCLTK"; then | |
165 | if test "$with_tcltk" = ""; then | |
166 | # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'. | |
167 | TCLTK_PATH=wish | |
168 | AC_SUBST(TCLTK_PATH) | |
169 | elif test "$with_tcltk" = "yes"; then | |
170 | # Tcl/Tk check requested. | |
171 | AC_CHECK_PROGS(TCLTK_PATH, [wish], ) | |
68daee08 | 172 | else |
81b63c70 ER |
173 | AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) |
174 | TCLTK_PATH="$with_tcltk" | |
175 | AC_SUBST(TCLTK_PATH) | |
81b63c70 ER |
176 | fi |
177 | fi | |
923db42e JN |
178 | AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) |
179 | if test -n "$ASCIIDOC"; then | |
180 | AC_MSG_CHECKING([for asciidoc version]) | |
181 | asciidoc_version=`$ASCIIDOC --version 2>&1` | |
182 | case "${asciidoc_version}" in | |
183 | asciidoc' '8*) | |
184 | ASCIIDOC8=YesPlease | |
185 | AC_MSG_RESULT([${asciidoc_version} > 7]) | |
186 | ;; | |
187 | asciidoc' '7*) | |
188 | ASCIIDOC8= | |
189 | AC_MSG_RESULT([${asciidoc_version}]) | |
190 | ;; | |
191 | *) | |
192 | ASCIIDOC8= | |
193 | AC_MSG_RESULT([${asciidoc_version} (unknown)]) | |
194 | ;; | |
195 | esac | |
196 | fi | |
197 | AC_SUBST(ASCIIDOC8) | |
198 | ||
633b4239 JN |
199 | |
200 | ## Checks for libraries. | |
ebdf5321 | 201 | AC_MSG_NOTICE([CHECKS for libraries]) |
f6719572 | 202 | # |
633b4239 | 203 | # Define NO_OPENSSL environment variable if you do not have OpenSSL. |
ebdf5321 | 204 | # Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). |
d5c31a1c | 205 | AC_CHECK_LIB([crypto], [SHA1_Init], |
424adc50 | 206 | [NEEDS_SSL_WITH_CRYPTO=], |
3068f6c4 | 207 | [AC_CHECK_LIB([ssl], [SHA1_Init], |
424adc50 JN |
208 | [NEEDS_SSL_WITH_CRYPTO=YesPlease |
209 | NEEDS_SSL_WITH_CRYPTO=], | |
210 | [NO_OPENSSL=YesPlease])]) | |
211 | AC_SUBST(NEEDS_SSL_WITH_CRYPTO) | |
212 | AC_SUBST(NO_OPENSSL) | |
f6719572 | 213 | # |
8da1e212 | 214 | # Define NO_CURL if you do not have libcurl installed. git-http-pull and |
633b4239 JN |
215 | # git-http-push are not built, and you cannot use http:// and https:// |
216 | # transports. | |
d5c31a1c | 217 | AC_CHECK_LIB([curl], [curl_global_init], |
424adc50 JN |
218 | [NO_CURL=], |
219 | [NO_CURL=YesPlease]) | |
220 | AC_SUBST(NO_CURL) | |
f6719572 | 221 | # |
633b4239 JN |
222 | # Define NO_EXPAT if you do not have expat installed. git-http-push is |
223 | # not built, and you cannot push using http:// and https:// transports. | |
d5c31a1c | 224 | AC_CHECK_LIB([expat], [XML_ParserCreate], |
424adc50 JN |
225 | [NO_EXPAT=], |
226 | [NO_EXPAT=YesPlease]) | |
227 | AC_SUBST(NO_EXPAT) | |
f6719572 | 228 | # |
e63ccb84 FK |
229 | # Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and |
230 | # some Solaris installations). | |
6ff88de7 | 231 | # Define NO_ICONV if neither libc nor libiconv support iconv. |
e63ccb84 FK |
232 | AC_DEFUN([ICONVTEST_SRC], [ |
233 | #include <iconv.h> | |
234 | ||
235 | int main(void) | |
236 | { | |
237 | iconv_open("", ""); | |
238 | return 0; | |
239 | } | |
240 | ]) | |
241 | AC_MSG_CHECKING([for iconv in -lc]) | |
242 | AC_LINK_IFELSE(ICONVTEST_SRC, | |
243 | [AC_MSG_RESULT([yes]) | |
244 | NEEDS_LIBICONV=], | |
245 | [AC_MSG_RESULT([no]) | |
246 | old_LIBS="$LIBS" | |
247 | LIBS="$LIBS -liconv" | |
248 | AC_MSG_CHECKING([for iconv in -liconv]) | |
249 | AC_LINK_IFELSE(ICONVTEST_SRC, | |
250 | [AC_MSG_RESULT([yes]) | |
251 | NEEDS_LIBICONV=YesPlease], | |
252 | [AC_MSG_RESULT([no]) | |
253 | NO_ICONV=YesPlease]) | |
254 | LIBS="$old_LIBS"]) | |
424adc50 | 255 | AC_SUBST(NEEDS_LIBICONV) |
baf1219a | 256 | AC_SUBST(NO_ICONV) |
825b045f | 257 | test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv" |
f6719572 | 258 | # |
609a2289 DS |
259 | # Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. |
260 | AC_DEFUN([ZLIBTEST_SRC], [ | |
261 | #include <zlib.h> | |
262 | ||
263 | int main(void) | |
264 | { | |
265 | deflateBound(0, 0); | |
266 | return 0; | |
267 | } | |
268 | ]) | |
269 | AC_MSG_CHECKING([for deflateBound in -lz]) | |
270 | old_LIBS="$LIBS" | |
271 | LIBS="$LIBS -lz" | |
272 | AC_LINK_IFELSE(ZLIBTEST_SRC, | |
273 | [AC_MSG_RESULT([yes])], | |
274 | [AC_MSG_RESULT([no]) | |
275 | NO_DEFLATE_BOUND=yes]) | |
276 | LIBS="$old_LIBS" | |
277 | AC_SUBST(NO_DEFLATE_BOUND) | |
278 | # | |
633b4239 JN |
279 | # Define NEEDS_SOCKET if linking with libc is not enough (SunOS, |
280 | # Patrick Mauritz). | |
d5c31a1c | 281 | AC_CHECK_LIB([c], [socket], |
424adc50 JN |
282 | [NEEDS_SOCKET=], |
283 | [NEEDS_SOCKET=YesPlease]) | |
284 | AC_SUBST(NEEDS_SOCKET) | |
d1b9944d | 285 | test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" |
633b4239 JN |
286 | |
287 | ||
288 | ## Checks for header files. | |
0f7a9c9b JN |
289 | AC_MSG_NOTICE([CHECKS for header files]) |
290 | # | |
3cf32374 JN |
291 | # Define NO_SYS_SELECT_H if you don't have sys/select.h. |
292 | AC_CHECK_HEADER([sys/select.h], | |
293 | [NO_SYS_SELECT_H=], | |
294 | [NO_SYS_SELECT_H=UnfortunatelyYes]) | |
295 | AC_SUBST(NO_SYS_SELECT_H) | |
296 | # | |
0f7a9c9b JN |
297 | # Define OLD_ICONV if your library has an old iconv(), where the second |
298 | # (input buffer pointer) parameter is declared with type (const char **). | |
299 | AC_DEFUN([OLDICONVTEST_SRC], [[ | |
300 | #include <iconv.h> | |
301 | ||
302 | extern size_t iconv(iconv_t cd, | |
303 | char **inbuf, size_t *inbytesleft, | |
304 | char **outbuf, size_t *outbytesleft); | |
305 | ||
306 | int main(void) | |
307 | { | |
308 | return 0; | |
309 | } | |
310 | ]]) | |
311 | AC_MSG_CHECKING([for old iconv()]) | |
312 | AC_COMPILE_IFELSE(OLDICONVTEST_SRC, | |
313 | [AC_MSG_RESULT([no])], | |
314 | [AC_MSG_RESULT([yes]) | |
315 | OLD_ICONV=UnfortunatelyYes]) | |
316 | AC_SUBST(OLD_ICONV) | |
633b4239 JN |
317 | |
318 | ||
319 | ## Checks for typedefs, structures, and compiler characteristics. | |
eb0f255d | 320 | AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) |
f6719572 | 321 | # |
633b4239 | 322 | # Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. |
d5c31a1c | 323 | AC_CHECK_MEMBER(struct dirent.d_ino, |
424adc50 JN |
324 | [NO_D_INO_IN_DIRENT=], |
325 | [NO_D_INO_IN_DIRENT=YesPlease], | |
eb0f255d | 326 | [#include <dirent.h>]) |
424adc50 | 327 | AC_SUBST(NO_D_INO_IN_DIRENT) |
f6719572 | 328 | # |
633b4239 JN |
329 | # Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks |
330 | # d_type in struct dirent (latest Cygwin -- will be fixed soonish). | |
d5c31a1c | 331 | AC_CHECK_MEMBER(struct dirent.d_type, |
424adc50 JN |
332 | [NO_D_TYPE_IN_DIRENT=], |
333 | [NO_D_TYPE_IN_DIRENT=YesPlease], | |
eb0f255d | 334 | [#include <dirent.h>]) |
424adc50 | 335 | AC_SUBST(NO_D_TYPE_IN_DIRENT) |
f6719572 | 336 | # |
633b4239 JN |
337 | # Define NO_SOCKADDR_STORAGE if your platform does not have struct |
338 | # sockaddr_storage. | |
d5c31a1c | 339 | AC_CHECK_TYPE(struct sockaddr_storage, |
424adc50 | 340 | [NO_SOCKADDR_STORAGE=], |
ab5573ae DS |
341 | [NO_SOCKADDR_STORAGE=YesPlease],[ |
342 | #include <sys/types.h> | |
343 | #include <sys/socket.h> | |
344 | ]) | |
424adc50 JN |
345 | AC_SUBST(NO_SOCKADDR_STORAGE) |
346 | # | |
8c6ab35e JH |
347 | # Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). |
348 | AC_CHECK_TYPE([struct addrinfo],[ | |
1689c5de | 349 | GIT_CHECK_FUNC([getaddrinfo], |
424adc50 JN |
350 | [NO_IPV6=], |
351 | [NO_IPV6=YesPlease]) | |
352 | ],[NO_IPV6=YesPlease],[ | |
8c6ab35e JH |
353 | #include <sys/types.h> |
354 | #include <sys/socket.h> | |
355 | #include <netdb.h> | |
356 | ]) | |
424adc50 | 357 | AC_SUBST(NO_IPV6) |
656517b9 JN |
358 | # |
359 | # Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.) | |
360 | # do not support the 'size specifiers' introduced by C99, namely ll, hh, | |
361 | # j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t). | |
362 | # some C compilers supported these specifiers prior to C99 as an extension. | |
f685d07d JN |
363 | AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers], |
364 | [ac_cv_c_c99_format], | |
656517b9 JN |
365 | [# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c |
366 | AC_RUN_IFELSE( | |
367 | [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], | |
368 | [[char buf[64]; | |
369 | if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5) | |
3c307bfb | 370 | return 1; |
656517b9 | 371 | else if (strcmp(buf, "12345")) |
3c307bfb | 372 | return 2;]])], |
656517b9 JN |
373 | [ac_cv_c_c99_format=yes], |
374 | [ac_cv_c_c99_format=no]) | |
375 | ]) | |
376 | if test $ac_cv_c_c99_format = no; then | |
424adc50 | 377 | NO_C99_FORMAT=YesPlease |
d5c31a1c | 378 | else |
424adc50 | 379 | NO_C99_FORMAT= |
656517b9 | 380 | fi |
424adc50 | 381 | AC_SUBST(NO_C99_FORMAT) |
c4582f93 | 382 | # |
8ce1f243 MR |
383 | # Define FREAD_READS_DIRECTORIES if your are on a system which succeeds |
384 | # when attempting to read from an fopen'ed directory. | |
385 | AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], | |
386 | [ac_cv_fread_reads_directories], | |
387 | [ | |
388 | AC_RUN_IFELSE( | |
389 | [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], | |
390 | [[char c; | |
391 | FILE *f = fopen(".", "r"); | |
392 | return f && fread(&c, 1, 1, f)]])], | |
393 | [ac_cv_fread_reads_directories=no], | |
394 | [ac_cv_fread_reads_directories=yes]) | |
395 | ]) | |
396 | if test $ac_cv_fread_reads_directories = yes; then | |
397 | FREAD_READS_DIRECTORIES=UnfortunatelyYes | |
398 | else | |
399 | FREAD_READS_DIRECTORIES= | |
400 | fi | |
401 | AC_SUBST(FREAD_READS_DIRECTORIES) | |
402 | # | |
c4582f93 MR |
403 | # Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() |
404 | # or vsnprintf() return -1 instead of number of characters which would | |
405 | # have been written to the final string if enough space had been available. | |
406 | AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], | |
407 | [ac_cv_snprintf_returns_bogus], | |
408 | [ | |
409 | AC_RUN_IFELSE( | |
410 | [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT | |
411 | #include "stdarg.h" | |
412 | ||
413 | int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) | |
414 | { | |
415 | int ret; | |
416 | va_list ap; | |
417 | va_start(ap, format); | |
418 | ret = vsnprintf(str, maxsize, format, ap); | |
419 | va_end(ap); | |
420 | return ret; | |
421 | }], | |
422 | [[char buf[6]; | |
423 | if (test_vsnprintf(buf, 3, "%s", "12345") != 5 | |
424 | || strcmp(buf, "12")) return 1; | |
425 | if (snprintf(buf, 3, "%s", "12345") != 5 | |
426 | || strcmp(buf, "12")) return 1]])], | |
427 | [ac_cv_snprintf_returns_bogus=no], | |
428 | [ac_cv_snprintf_returns_bogus=yes]) | |
429 | ]) | |
430 | if test $ac_cv_snprintf_returns_bogus = yes; then | |
431 | SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes | |
432 | else | |
433 | SNPRINTF_RETURNS_BOGUS= | |
434 | fi | |
435 | AC_SUBST(SNPRINTF_RETURNS_BOGUS) | |
633b4239 | 436 | |
a20b4d89 | 437 | |
633b4239 | 438 | ## Checks for library functions. |
1bbbadbc JN |
439 | ## (in default C library and libraries checked by AC_CHECK_LIB) |
440 | AC_MSG_NOTICE([CHECKS for library functions]) | |
f6719572 | 441 | # |
633b4239 | 442 | # Define NO_STRCASESTR if you don't have strcasestr. |
1689c5de | 443 | GIT_CHECK_FUNC(strcasestr, |
424adc50 JN |
444 | [NO_STRCASESTR=], |
445 | [NO_STRCASESTR=YesPlease]) | |
446 | AC_SUBST(NO_STRCASESTR) | |
f6719572 | 447 | # |
24397556 | 448 | # Define NO_MEMMEM if you don't have memmem. |
1689c5de | 449 | GIT_CHECK_FUNC(memmem, |
24397556 JN |
450 | [NO_MEMMEM=], |
451 | [NO_MEMMEM=YesPlease]) | |
452 | AC_SUBST(NO_MEMMEM) | |
453 | # | |
633b4239 | 454 | # Define NO_STRLCPY if you don't have strlcpy. |
1689c5de | 455 | GIT_CHECK_FUNC(strlcpy, |
424adc50 JN |
456 | [NO_STRLCPY=], |
457 | [NO_STRLCPY=YesPlease]) | |
458 | AC_SUBST(NO_STRLCPY) | |
f6719572 | 459 | # |
0bc3e781 DS |
460 | # Define NO_UINTMAX_T if your platform does not have uintmax_t |
461 | AC_CHECK_TYPE(uintmax_t, | |
462 | [NO_UINTMAX_T=], | |
463 | [NO_UINTMAX_T=YesPlease],[ | |
464 | #include <inttypes.h> | |
465 | ]) | |
466 | AC_SUBST(NO_UINTMAX_T) | |
467 | # | |
24397556 | 468 | # Define NO_STRTOUMAX if you don't have strtoumax in the C library. |
1689c5de | 469 | GIT_CHECK_FUNC(strtoumax, |
24397556 JN |
470 | [NO_STRTOUMAX=], |
471 | [NO_STRTOUMAX=YesPlease]) | |
472 | AC_SUBST(NO_STRTOUMAX) | |
473 | # | |
633b4239 | 474 | # Define NO_SETENV if you don't have setenv in the C library. |
1689c5de | 475 | GIT_CHECK_FUNC(setenv, |
424adc50 JN |
476 | [NO_SETENV=], |
477 | [NO_SETENV=YesPlease]) | |
478 | AC_SUBST(NO_SETENV) | |
f6719572 | 479 | # |
bfa8fccf | 480 | # Define NO_UNSETENV if you don't have unsetenv in the C library. |
1689c5de | 481 | GIT_CHECK_FUNC(unsetenv, |
bfa8fccf JN |
482 | [NO_UNSETENV=], |
483 | [NO_UNSETENV=YesPlease]) | |
484 | AC_SUBST(NO_UNSETENV) | |
485 | # | |
24397556 | 486 | # Define NO_MKDTEMP if you don't have mkdtemp in the C library. |
1689c5de | 487 | GIT_CHECK_FUNC(mkdtemp, |
24397556 JN |
488 | [NO_MKDTEMP=], |
489 | [NO_MKDTEMP=YesPlease]) | |
490 | AC_SUBST(NO_MKDTEMP) | |
491 | # | |
633b4239 JN |
492 | # Define NO_MMAP if you want to avoid mmap. |
493 | # | |
633b4239 JN |
494 | # Define NO_ICONV if your libc does not properly support iconv. |
495 | ||
496 | ||
497 | ## Other checks. | |
498 | # Define USE_PIC if you need the main git objects to be built with -fPIC | |
499 | # in order to build and link perl/Git.so. x86-64 seems to need this. | |
500 | # | |
501 | # Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. | |
502 | # Enable it on Windows. By default, symrefs are still used. | |
20f7a398 | 503 | # |
46059cc6 JH |
504 | # Define NO_PTHREADS if we do not have pthreads |
505 | # | |
d937c374 DS |
506 | # Define PTHREAD_LIBS to the linker flag used for Pthread support and define |
507 | # THREADED_DELTA_SEARCH if Pthreads are available. | |
20f7a398 DS |
508 | AC_LANG_CONFTEST([AC_LANG_PROGRAM( |
509 | [[#include <pthread.h>]], | |
510 | [[pthread_mutex_t test_mutex;]] | |
511 | )]) | |
512 | ${CC} -pthread conftest.c -o conftest.o > /dev/null 2>&1 | |
513 | if test $? -eq 0;then | |
514 | PTHREAD_LIBS="-pthread" | |
d937c374 | 515 | THREADED_DELTA_SEARCH=YesPlease |
20f7a398 DS |
516 | else |
517 | ${CC} -lpthread conftest.c -o conftest.o > /dev/null 2>&1 | |
518 | if test $? -eq 0;then | |
519 | PTHREAD_LIBS="-lpthread" | |
d937c374 | 520 | THREADED_DELTA_SEARCH=YesPlease |
46059cc6 JH |
521 | else |
522 | NO_PTHREADS=UnfortunatelyYes | |
20f7a398 DS |
523 | fi |
524 | fi | |
525 | AC_SUBST(PTHREAD_LIBS) | |
46059cc6 | 526 | AC_SUBST(NO_PTHREADS) |
d937c374 | 527 | AC_SUBST(THREADED_DELTA_SEARCH) |
633b4239 | 528 | |
a20b4d89 JN |
529 | ## Site configuration (override autodetection) |
530 | ## --with-PACKAGE[=ARG] and --without-PACKAGE | |
531 | AC_MSG_NOTICE([CHECKS for site configuration]) | |
532 | # | |
533 | # Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability | |
534 | # tests. These tests take up a significant amount of the total test time | |
535 | # but are not needed unless you plan to talk to SVN repos. | |
536 | # | |
537 | # Define MOZILLA_SHA1 environment variable when running make to make use of | |
538 | # a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast | |
539 | # on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default | |
540 | # choice) has very fast version optimized for i586. | |
541 | # | |
542 | # Define PPC_SHA1 environment variable when running make to make use of | |
543 | # a bundled SHA1 routine optimized for PowerPC. | |
544 | # | |
545 | # Define ARM_SHA1 environment variable when running make to make use of | |
546 | # a bundled SHA1 routine optimized for ARM. | |
547 | # | |
548 | # Define NO_OPENSSL environment variable if you do not have OpenSSL. | |
549 | # This also implies MOZILLA_SHA1. | |
550 | # | |
551 | # Define OPENSSLDIR=/foo/bar if your openssl header and library files are in | |
552 | # /foo/bar/include and /foo/bar/lib directories. | |
553 | AC_ARG_WITH(openssl, | |
554 | AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) | |
555 | AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\ | |
556 | GIT_PARSE_WITH(openssl)) | |
557 | # | |
558 | # Define NO_CURL if you do not have curl installed. git-http-pull and | |
559 | # git-http-push are not built, and you cannot use http:// and https:// | |
560 | # transports. | |
561 | # | |
562 | # Define CURLDIR=/foo/bar if your curl header and library files are in | |
563 | # /foo/bar/include and /foo/bar/lib directories. | |
564 | AC_ARG_WITH(curl, | |
565 | AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) | |
566 | AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), | |
567 | GIT_PARSE_WITH(curl)) | |
568 | # | |
569 | # Define NO_EXPAT if you do not have expat installed. git-http-push is | |
570 | # not built, and you cannot push using http:// and https:// transports. | |
571 | # | |
572 | # Define EXPATDIR=/foo/bar if your expat header and library files are in | |
573 | # /foo/bar/include and /foo/bar/lib directories. | |
574 | AC_ARG_WITH(expat, | |
575 | AS_HELP_STRING([--with-expat], | |
576 | [support git-push using http:// and https:// transports via WebDAV (default is YES)]) | |
577 | AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), | |
578 | GIT_PARSE_WITH(expat)) | |
579 | # | |
580 | # Define NO_FINK if you are building on Darwin/Mac OS X, have Fink | |
581 | # installed in /sw, but don't want GIT to link against any libraries | |
582 | # installed there. If defined you may specify your own (or Fink's) | |
583 | # include directories and library directories by defining CFLAGS | |
584 | # and LDFLAGS appropriately. | |
585 | # | |
586 | # Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, | |
587 | # have DarwinPorts installed in /opt/local, but don't want GIT to | |
588 | # link against any libraries installed there. If defined you may | |
589 | # specify your own (or DarwinPort's) include directories and | |
590 | # library directories by defining CFLAGS and LDFLAGS appropriately. | |
591 | # | |
592 | # Define NO_MMAP if you want to avoid mmap. | |
baf1219a JN |
593 | # |
594 | # Define NO_ICONV if your libc does not properly support iconv. | |
595 | AC_ARG_WITH(iconv, | |
596 | AS_HELP_STRING([--without-iconv], | |
597 | [if your architecture doesn't properly support iconv]) | |
598 | AS_HELP_STRING([--with-iconv=PATH], | |
599 | [PATH is prefix for libiconv library and headers]) | |
600 | AS_HELP_STRING([], | |
601 | [used only if you need linking with libiconv]), | |
602 | GIT_PARSE_WITH(iconv)) | |
a20b4d89 JN |
603 | |
604 | ## --enable-FEATURE[=ARG] and --disable-FEATURE | |
605 | # | |
a20b4d89 JN |
606 | # Define USE_NSEC below if you want git to care about sub-second file mtimes |
607 | # and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and | |
608 | # it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely | |
609 | # randomly break unless your underlying filesystem supports those sub-second | |
610 | # times (my ext3 doesn't). | |
611 | # | |
612 | # Define USE_STDEV below if you want git to care about the underlying device | |
10455d2a | 613 | # change being considered an inode change from the update-index perspective. |
a20b4d89 JN |
614 | |
615 | ||
633b4239 | 616 | ## Output files |
d3a6db98 | 617 | AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"]) |
55667714 | 618 | AC_OUTPUT |
d3a6db98 | 619 | |
f6719572 | 620 | |
d3a6db98 JN |
621 | ## Cleanup |
622 | rm -f "${config_append}" |