3 # Copyright (c) 2009, Darren Hiebert
5 # This source code is released for free distribution under the terms
6 # of the GNU General Public License.
8 # Process this file with autoconf to produce a configure script.
12 AC_CONFIG_HEADERS([config.h])
14 AH_TEMPLATE([PACKAGE], [Package name.])
15 AH_TEMPLATE([VERSION], [Package version.])
16 AH_TEMPLATE([clock_t],
17 [Define to the appropriate type if <time.h> does not define this.])
19 [Define to long if <stdio.h> does not define this.])
20 AH_TEMPLATE([L_tmpnam],
21 [Define to the appropriate size for tmpnam() if <stdio.h> does not define
23 AH_TEMPLATE([HAVE_STAT_ST_INO],
24 [Define this macro if the field "st_ino" exists in struct stat in
27 [Define remove to unlink if you have unlink(), but not remove().])
28 AH_TEMPLATE([SEEK_SET],
29 [Define this value used by fseek() appropriately if <stdio.h>
30 (or <unistd.h> on SunOS 4.1.x) does not define them.])
31 AH_TEMPLATE([INT_MAX],
32 [Define as the maximum integer on your system if not defined <limits.h>.])
33 AH_TEMPLATE([CUSTOM_CONFIGURATION_FILE],
34 [You can define this label to be a string containing the name of a
35 site-specific configuration file containing site-wide default options. The
36 files /etc/ctags.conf and /usr/local/etc/ctags.conf are already checked,
37 so only define one here if you need a file somewhere else.])
38 AH_TEMPLATE([MACROS_USE_PATTERNS],
39 [Define this label if you want macro tags (defined lables) to use patterns
40 in the EX command by default (original ctags behavior is to use line
42 AH_VERBATIM([DEFAULT_FILE_FORMAT], [
43 /* Define this as desired.
44 * 1: Original ctags format
45 * 2: Extended ctags format with extension flags in EX-style comment.
47 #define DEFAULT_FILE_FORMAT 2
49 AH_TEMPLATE([SYS_INTERPRETER],
50 [Define this label if your system supports starting scripts with a line of
51 the form "#! /bin/sh" to select the interpreter to use for the script.])
52 AH_TEMPLATE([CASE_INSENSITIVE_FILENAMES],
53 [Define this label if your system uses case-insensitive file names])
54 AH_VERBATIM([EXTERNAL_SORT], [
55 /* Define this label to use the system sort utility (which is probably more
56 * efficient) over the internal sorting algorithm.
63 [If you wish to change the directory in which temporary files are stored,
64 define this label to the directory desired.])
65 AH_TEMPLATE([REGCOMP_BROKEN],
66 [Define this label if regcomp() is broken.])
67 AH_TEMPLATE([CHECK_REGCOMP],
68 [Define this label if you wish to check the regcomp() function at run time
69 for correct behavior. This function is currently broken on Cygwin.])
70 AH_TEMPLATE([__USE_FIXED_PROTOTYPES__],
71 [This corrects the problem of missing prototypes for certain functions
72 in some GNU installations (e.g. SunOS 4.1.x).])
73 AH_TEMPLATE([NON_CONST_PUTENV_PROTOTYPE],
74 [Define this is you have a prototype for putenv() in <stdlib.h>, but
75 doesn't declare its argument as "const char *".])
76 AH_TEMPLATE([NEED_PROTO_REMOVE],
77 [If you receive error or warning messages indicating that you are missing
78 a prototype for, or a type mismatch using, the following function, define
79 this label and remake.])
80 AH_TEMPLATE([NEED_PROTO_UNLINK],
81 [If you receive error or warning messages indicating that you are missing
82 a prototype for, or a type mismatch using, the following function, define
83 this label and remake.])
84 AH_TEMPLATE([NEED_PROTO_MALLOC],
85 [If you receive error or warning messages indicating that you are missing
86 a prototype for, or a type mismatch using, the following function, define
87 this label and remake.])
88 AH_TEMPLATE([NEED_PROTO_GETENV],
89 [If you receive error or warning messages indicating that you are missing
90 a prototype for, or a type mismatch using, the following function, define
91 this label and remake.])
92 AH_TEMPLATE([NEED_PROTO_FGETPOS],
93 [If you receive error or warning messages indicating that you are missing
94 a prototype for, or a type mismatch using, the following function, define
95 this label and remake.])
96 AH_TEMPLATE([NEED_PROTO_STAT],
97 [If you receive error or warning messages indicating that you are missing
98 a prototype for, or a type mismatch using, the following function, define
99 this label and remake.])
100 AH_TEMPLATE([NEED_PROTO_LSTAT],
101 [If you receive error or warning messages indicating that you are missing
102 a prototype for, or a type mismatch using, the following function, define
103 this label and remake.])
104 AH_TEMPLATE([NEED_PROTO_TRUNCATE],
105 [If you receive error or warning messages indicating that you are missing
106 a prototype for, or a type mismatch using, the following function, define
107 this label and remake.])
108 AH_TEMPLATE([NEED_PROTO_FTRUNCATE],
109 [If you receive error or warning messages indicating that you are missing
110 a prototype for, or a type mismatch using, the following function, define
111 this label and remake.])
117 program_name=[`grep 'PROGRAM_NAME *"' ctags.h | sed -e 's/.*"\([^"]*\)".*/\1/'`]
118 program_version=[`grep 'PROGRAM_VERSION *"' ctags.h | sed -e 's/.*"\([^"]*\)".*/\1/'`]
119 echo "$program_name, version $program_version"
120 uname -mrsv 2>/dev/null
122 # Define convenience macros
123 # -------------------------
124 # CHECK_HEADER_DEFINE(LABEL, HEADER [,ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ] ])
125 AC_DEFUN([CHECK_HEADER_DEFINE], [
126 AC_MSG_CHECKING([if $1 is defined in $2])
140 # Checks for configuration options
141 # --------------------------------
143 AC_ARG_WITH(posix-regex,
144 [ --with-posix-regex use Posix regex interface, if available])
147 [ --with-readlib include readtags library object during install])
149 # AC_ARG_WITH(perl-regex,
150 # [ --with-perl-regex use Perl pcre interface, if available])
153 [ --enable-etags enable the installation of links for etags])
155 AC_ARG_ENABLE(extended-format,
156 [ --disable-extended-format
157 disable extension flags; use original ctags file
159 AC_DEFINE(DEFAULT_FILE_FORMAT, 1), AC_DEFINE(DEFAULT_FILE_FORMAT, 2))
161 AC_ARG_ENABLE(external-sort,
162 [ --disable-external-sort use internal sort algorithm instead of sort program])
164 AC_ARG_ENABLE(custom-config,
165 [ --enable-custom-config=FILE
166 enable custom config file for site-wide defaults])
168 AC_ARG_ENABLE(macro-patterns,
169 [ --enable-macro-patterns use patterns as default method to locate macros
170 instead of line numbers])
172 AC_ARG_ENABLE(maintainer-mode,
173 [ --enable-maintainer-mode
174 use maintainer makefile])
176 AC_ARG_ENABLE(shell-globbing,
177 [ --enable-shell-globbing=DIR
178 does shell expand wildcards (yes|no)? [yes]])
180 AC_ARG_ENABLE(tmpdir,
181 [ --enable-tmpdir=DIR default directory for temporary files [ARG=/tmp]],
182 tmpdir_specified=yes)
185 # Process configuration options
186 # -----------------------------
188 if test "$enable_maintainer_mode" = yes ; then
189 AC_MSG_RESULT(enabling maintainer mode)
192 install_targets="install-ctags"
193 AC_MSG_CHECKING(whether to install link to etags)
194 if test yes = "$enable_etags"; then
196 install_targets="$install_targets install-etags"
200 AC_MSG_CHECKING(whether to install readtags object file)
201 if test yes = "$with_readlib"; then
203 install_targets="$install_targets install-lib"
207 AC_SUBST(install_targets)
209 if test "$enable_custom_config" = no -o "$enable_custom_config" = yes ; then
210 AC_MSG_RESULT(no name supplied for custom configuration file)
211 elif test -n "$enable_custom_config" ; then
212 AC_DEFINE_UNQUOTED(CUSTOM_CONFIGURATION_FILE, "$enable_custom_config")
213 AC_MSG_RESULT($enable_custom_config will be used as custom configuration file)
216 if test "$enable_macro_patterns" = yes ; then
217 AC_DEFINE(MACROS_USE_PATTERNS)
218 AC_MSG_RESULT(tag file will use patterns for macros by default)
221 # Checks for programs
222 # -------------------
228 AC_MSG_CHECKING(HP-UX native compiler)
229 if test "$CC" = "cc"; then
230 AC_MSG_RESULT(yes; adding compiler options for ANSI support)
231 CFLAGS="$CFLAGS -Aa -D_HPUX_SOURCE"
237 if uname -r | grep '5\.' >/dev/null 2>&1; then
238 AC_MSG_CHECKING(Solaris native compiler)
239 if test "$CC" = "cc" -a "`which cc`" = "/usr/ucb/cc"; then
240 AC_MSG_RESULT(yes; adding compiler option for ANSI support)
250 AC_CHECK_PROG(STRIP, strip, strip, :)
253 # Checks for operating environment
254 # --------------------------------
256 # Check for temporary directory
257 AC_MSG_CHECKING(directory to use for temporary files)
258 if test -n "$enable_tmpdir"; then
259 tmpdir="$enable_tmpdir"
260 elif test -n "$TMPDIR"; then
262 elif test -n "$TMPDIR"; then
264 elif test -n "$TMP"; then
266 elif test -n "$TEMP"; then
268 elif test -d "c:/"; then
273 if test -d $tmpdir ; then
274 AC_MSG_RESULT($tmpdir)
275 AC_DEFINE_UNQUOTED(TMPDIR, "$tmpdir")
277 AC_MSG_ERROR($tmpdir does not exist)
280 # Check whether system supports #! scripts
282 if test yes = "$interpval"; then
283 AC_DEFINE(SYS_INTERPRETER)
286 # Test for case-insensitive filenames
287 AC_MSG_CHECKING(for case-insensitive filenames)
289 if test -f CONFTEST.CIF; then
291 AC_DEFINE(CASE_INSENSITIVE_FILENAMES)
297 AC_MSG_CHECKING(selected sort method)
298 if test no = "$enable_external_sort"; then
299 AC_MSG_RESULT(simple internal algorithm)
301 AC_MSG_RESULT(external sort utility)
302 enable_external_sort=no
303 AC_CHECK_PROG(sort_found, sort, yes, no)
304 if test "$sort_found" = yes ; then
305 AC_MSG_CHECKING(if sort accepts our command line)
306 touch ${tmpdir}/sort.test
307 sort -u -f -o ${tmpdir}/sort.test ${tmpdir}/sort.test 1>/dev/null 2>&1
308 if test $? -ne 0 ; then
312 AC_DEFINE(EXTERNAL_SORT)
313 enable_external_sort=yes
315 rm -f ${tmpdir}/sort.test
318 if test "$enable_external_sort" != yes ; then
319 AC_MSG_RESULT(using internal sort algorithm as fallback)
323 # Checks for header files
324 # -----------------------
326 AC_CHECK_HEADERS_ONCE([dirent.h fcntl.h fnmatch.h stat.h stdlib.h string.h])
327 AC_CHECK_HEADERS_ONCE([time.h types.h unistd.h])
328 AC_CHECK_HEADERS_ONCE([sys/dir.h sys/stat.h sys/times.h sys/types.h])
331 # Checks for header file macros
332 # -----------------------------
334 CHECK_HEADER_DEFINE(L_tmpnam, [stdio.h],, AC_DEFINE(L_tmpnam, 20))
336 CHECK_HEADER_DEFINE(INT_MAX, [limits.h],,
337 CHECK_HEADER_DEFINE(MAXINT, [limits.h],
338 AC_DEFINE(INT_MAX, MAXINT), AC_DEFINE(INT_MAX, 32767)))
341 # Checks for typedefs
342 # -------------------
347 AC_MSG_CHECKING(for fpos_t)
348 AC_EGREP_HEADER(fpos_t, stdio.h, AC_MSG_RESULT(yes),
351 AC_DEFINE(fpos_t, long)
354 AC_MSG_CHECKING(for clock_t)
355 AC_EGREP_HEADER(clock_t, time.h, AC_MSG_RESULT(yes),
358 AC_DEFINE(clock_t, long)
362 # Checks for compiler characteristics
363 # -----------------------------------
371 AC_MSG_CHECKING(if struct stat contains st_ino)
372 AC_TRY_COMPILE([#include <sys/stat.h>], [
377 ], have_st_ino=yes, have_st_ino=no)
378 AC_MSG_RESULT($have_st_ino)
379 if test yes = "$have_st_ino"; then
380 AC_DEFINE(HAVE_STAT_ST_INO)
384 # Checks for library functions
385 # ----------------------------
387 AC_CHECK_FUNCS(fnmatch)
388 AC_CHECK_FUNCS(strstr)
389 AC_CHECK_FUNCS(strcasecmp stricmp, break)
390 AC_CHECK_FUNCS(strncasecmp strnicmp, break)
391 AC_CHECK_FUNCS(fgetpos, have_fgetpos=yes)
393 # SEEK_SET should be in stdio.h, but may be in unistd.h on SunOS 4.1.x
394 if test "$have_fgetpos" != yes ; then
395 CHECK_HEADER_DEFINE(SEEK_SET, stdio.h,,
396 CHECK_HEADER_DEFINE(SEEK_SET, unistd.h,,
397 AC_DEFINE(SEEK_SET, 0)))
400 AC_CHECK_FUNCS(mkstemp, have_mkstemp=yes)
401 if test "$have_mkstemp" != yes ; then
402 AC_CHECK_FUNCS(tempnam, have_tempnam=yes)
404 if test "$have_mkstemp" != yes -a "$have_tempnam" != yes; then
405 AC_CHECK_FUNCS(chmod)
406 if test "$tmpdir_specified" = yes ; then
407 AC_MSG_RESULT(use of tmpnam overrides temporary directory selection)
411 AC_CHECK_FUNCS(opendir findfirst _findfirst, break)
412 AC_CHECK_FUNCS(strerror)
413 AC_CHECK_FUNCS(clock times, break)
414 AC_CHECK_FUNCS(remove, have_remove=yes,
415 CHECK_HEADER_DEFINE(remove, unistd.h,, AC_DEFINE(remove, unlink)))
417 AC_CHECK_FUNCS(truncate, have_truncate=yes)
418 # === Cannot nest AC_CHECK_FUNCS() calls
419 if test "$have_truncate" != yes ; then
420 AC_CHECK_FUNCS(ftruncate, have_ftruncate=yes)
421 if test "$have_ftruncate" != yes ; then
422 AC_CHECK_FUNCS(chsize)
426 AC_CHECK_FUNCS(setenv, have_setenv=yes)
427 # === Cannot nest AC_CHECK_FUNCS() calls
428 if test "$have_setenv" != yes ; then
429 AC_CHECK_FUNCS(putenv, have_putenv=yes)
430 if test "$have_putenv" = yes ; then
431 AC_EGREP_HEADER(putenv, stdlib.h, have_putenv_prototype=yes)
432 if test "$have_putenv_prototype" = yes ; then
433 AC_MSG_CHECKING(putenv prototype)
434 AC_EGREP_HEADER([[^A-Za-zo-9_]putenv[ ]*\(.*const.*\)[ ]*;],
435 stdlib.h, AC_MSG_RESULT(correct),
437 AC_MSG_RESULT(no const)
438 AC_DEFINE(NON_CONST_PUTENV_PROTOTYPE)
445 # if test yes = "$CYGWIN"; then with_posix_regex=no; fi
446 if test no != "$with_posix_regex"; then
447 AC_CHECK_FUNCS(regcomp)
448 AC_MSG_CHECKING(if regcomp works)
450 #include <sys/types.h>
454 exit (regcomp (&patbuf, "/hello/", 0) != 0);
455 }],regcomp_works=yes,regcomp_works=no,AC_DEFINE(CHECK_REGCOMP))
456 AC_MSG_RESULT($regcomp_works)
457 if test yes != "$regcomp_works"; then
458 AC_DEFINE(REGCOMP_BROKEN)
462 # if test yes = "$with_perl_regex"; then
463 # AC_MSG_CHECKING(for Perl regex library)
464 # pcre_candidates="$with_perl_regex $HOME/local/lib* /usr*/local/lib* /usr/lib*"
465 # for lib in $pcre_candidates; do
466 # if test -f $lib/libpcreposix.so; then
467 # pcre_lib="-L$lib -lpcreposix"
469 # elif test -f $lib/libpcreposix.a; then
470 # pcre_lib="$lib/libpcreposix.a"
474 # if test -z "$pcre_lib"; then
475 # AC_MSG_RESULT(not found)
477 # AC_MSG_RESULT($lib)
478 # AC_DEFINE(HAVE_REGCOMP)
479 # LDFLAGS="$LDFLAGS $pcre_lib"
485 # Checks for missing prototypes
486 # -----------------------------
487 AC_CHECKING(for new missing prototypes)
489 AC_DEFUN(CHECK_PROTO, [
490 AC_EGREP_HEADER([[^A-Za-z0-9_]$1([ ]+[A-Za-z0-9_]*)?[ ]*\(],
494 AC_MSG_RESULT([adding prototype for $1])
495 AC_DEFINE(patsubst([NEED_PROTO_NAME], [NAME], translit([$1], [[a-z]], [[A-Z]])))
498 if test "$have_remove" = yes ; then
499 CHECK_PROTO(remove, stdio.h)
501 CHECK_PROTO(unlink, unistd.h)
503 CHECK_PROTO(malloc, stdlib.h)
504 CHECK_PROTO(getenv, stdlib.h)
505 CHECK_PROTO(stat, sys/stat.h)
506 CHECK_PROTO(lstat, sys/stat.h)
507 if test "$have_fgetpos" = yes ; then
508 CHECK_PROTO(fgetpos, stdio.h)
510 if test "$have_truncate" = yes ; then
511 CHECK_PROTO(truncate, unistd.h)
513 if test "$have_ftruncate" = yes ; then
514 CHECK_PROTO(ftruncate, unistd.h)
523 if test "$enable_maintainer_mode" = yes ; then
524 AC_MSG_RESULT(creating maintainer Makefile)
525 ln -s maintainer.mak Makefile
528 makefile_out=Makefile
530 AC_OUTPUT($makefile_out)