+1999-09-26 Akim Demaille <akim@epita.fr>
+
+ * acgeneral.m4 (AC_WRAP): Rewritten.
+ (AC_HELP_STRING): Wrapper of AC_WRAP.
+ * acgeneral.m4 (_AC_SH_QUOTE): Rewritten. Don't try to handle
+ both backslashed and non backslashed backquotes in a single
+ string: consider that either all the backquotes are quoted, or
+ none.
+
+1999-09-26 Akim Demaille <akim@epita.fr>
+
+ * acgeneral.m4 (AC_PATH_PROG): Use a single case statement for
+ Unix and DOS absolute paths.
+
+ * acgeneral.m4 (AC_CHECK_SIZEOF): Fix a typo.
+ Allow a third default argument: extra headers.
+ * autoconf.texi (C Compiler Characteristics): Document.
+
+ * acgeneral.m4 (AC_CHECK_TYPE): Convert to the AC_VAR_* family.
+ Allow a third optional argument: extra includes.
+ * autoconf.texi (Generic Typedefs): Documents.
+
+1999-09-25 Akim Demaille <akim@epita.fr>
+
+ * acgeneral.m4 (AC_OUTPUT, handling of options): Make it possible
+ to specify the files to configure on the command line instead of
+ via envvars. Document it.
+
+1999-09-25 Akim Demaille <akim@epita.fr>
+
+ * acgeneral.m4: Rename the occurences of the variable `confstat'
+ as `ac_cs_root'. The previous name was breaking the naming
+ scheme.
+
+ * TODO: Updated.
+ Added a section for 2.15 and 3.
+
1999-09-23 Pavel Roskin <pavel_roskin@geocities.com>
Avoid that comments from aclocal.m4 show up in configure when
(AC_INIT_NOTICE): Initialize ac_arg_enable_help, ac_arg_with_help,
and ac_arg_var_help.
* acgeneral.m4 (AC_INIT_PARSE_ARGS): Remove the handling of
- --env-var=. After debate, the solution chosen to specify envvars
+ --env-var=. After debate, the solution chosen to specify envvars
to configure is a` la make: ./configure VAR=VAL.
(AC_INIT_PARSE_ARGS, --help): Output ac_arg_enable_help,
ac_arg_with_help, and ac_arg_var_help.
Tue Sep 8 14:06:04 1998 Matthew D. Langston <langston@SLAC.Stanford.EDU>
- * acgeneral.m4: Make the following macros Fortran 77 aware
- (i.e. conditionalize whether to `#include "confdefs.h"', etc.):
- (AC_TRY_COMPILE)
- (AC_TRY_LINK)
- (AC_CHECK_LIB)
+ * acgeneral.m4: Make the following macros Fortran 77 aware
+ (i.e. conditionalize whether to `#include "confdefs.h"', etc.):
+ (AC_TRY_COMPILE)
+ (AC_TRY_LINK)
+ (AC_CHECK_LIB)
- * acgeneral.m4 (AC_LANG_FORTRAN77): Rename `AC_LANG_FORTRAN' to
- `AC_LANG_FORTRAN77'. Change the Fortran 77 language macro from
- `FORTRAN' to `FORTRAN77'.
- (AC_LANG_RESTORE): Change the Fortran 77 language macro from
- `FORTRAN' to `FORTRAN77'
+ * acgeneral.m4 (AC_LANG_FORTRAN77): Rename `AC_LANG_FORTRAN' to
+ `AC_LANG_FORTRAN77'. Change the Fortran 77 language macro from
+ `FORTRAN' to `FORTRAN77'.
+ (AC_LANG_RESTORE): Change the Fortran 77 language macro from
+ `FORTRAN' to `FORTRAN77'
- * autoconf.texi: Updated Fortran 77 documentation, particularly
- for `AC_TRY_COMPILE', `AC_TRY_LINK' and `AC_CHECK_LIB'.
+ * autoconf.texi: Updated Fortran 77 documentation, particularly
+ for `AC_TRY_COMPILE', `AC_TRY_LINK' and `AC_CHECK_LIB'.
Thu Sep 3 09:34:39 1998 Matthew D. Langston <langston@SLAC.Stanford.EDU>
- * autoconf.texi: Added Fortran 77 documentation.
+ * autoconf.texi: Added Fortran 77 documentation.
- * acspecific.m4 (AC_PROG_FC): New macro. Determine a Fortran
- compiler to use.
- (AC_PROG_FC_WORKS): New macro.
- (AC_PROG_FC_GNU): New macro.
- (AC_PROG_FC_G): New macro.
- (AC_PROG_FC_C_O): New macro.
+ * acspecific.m4 (AC_PROG_FC): New macro. Determine a Fortran
+ compiler to use.
+ (AC_PROG_FC_WORKS): New macro.
+ (AC_PROG_FC_GNU): New macro.
+ (AC_PROG_FC_G): New macro.
+ (AC_PROG_FC_C_O): New macro.
- * acgeneral.m4: Add FFLAGS (Fortran 77 flags).
- (AC_LANG_FORTRAN): New macro.
- (AC_LANG_RESTORE): Make Fortran 77 aware.
- (AC_TRY_COMPILER): Make Fortran 77 aware (i.e. conditionalize
- whether to `#include "confdefs.h"').
+ * acgeneral.m4: Add FFLAGS (Fortran 77 flags).
+ (AC_LANG_FORTRAN): New macro.
+ (AC_LANG_RESTORE): Make Fortran 77 aware.
+ (AC_TRY_COMPILER): Make Fortran 77 aware (i.e. conditionalize
+ whether to `#include "confdefs.h"').
Thu Jun 18 12:13:27 1998 Ian Lance Taylor <ian@cygnus.com>
Markku Savela <msa@msa.tte.vtt.fi> and Julian Onions
<j.onions@nexor.co.uk>.
* acgeneral.m4 (AC_TRY_RUN_NATIVE, AC_TRY_LINK, AC_TRY_COMPILE,
- AC_TRY_CPP): Show the test program in config.log if the test fails.
+ AC_TRY_CPP): Show the test program in config.log if the test fails.
From Karl Berry <karl@cs.umb.edu>.
* testsuite/config/unix.exp: Run the configure script as "./script"
AC_CHECK_HEADERS_DIRENT): Ditto.
* acspecific.m4 (AC_FUNC_SETPGRP): New macro.
- * acconfig.h (SETPGRP_VOID): New entry.
+ * acconfig.h (SETPGRP_VOID): New entry.
From "T.E.Dickey" <dickey@clark.net>.
- * acspecific.m4 (AC_PATH_X_DIRECT): Try /lib/usr/lib/X11 for A/UX.
- From Guillermo Gomez <gomez@mi.uni-erlangen.de>.
+ * acspecific.m4 (AC_PATH_X_DIRECT): Try /lib/usr/lib/X11 for A/UX.
+ From Guillermo Gomez <gomez@mi.uni-erlangen.de>.
(AC_PATH_XTRA): Replace -R with adding LD_RUN_PATH to CC in the
Solaris kludge. Suggested by Paul Eggert <eggert@twinsun.com>.
Define X_DISPLAY_MISSING with AC_DEFINE, and
From gvran@uddeborg.pp.se.
Don't blather about being called before AC_TRY_LINK,
which is now called in AC_PROG_CC. Don't encourage using this macro.
- * acconfig.h (X_DISPLAY_MISSING): Add entry.
+ * acconfig.h (X_DISPLAY_MISSING): Add entry.
Fri Nov 8 16:02:08 1996 David J MacKenzie <djm@catapult.va.pubnix.com>
Sat Nov 18 14:21:55 1995 Karl Berry <karl@cs.umb.edu>
- * autoconf.sh: Allow lowercase letters in the undefined-macro name.
+ * autoconf.sh: Allow lowercase letters in the undefined-macro name.
Fri Nov 17 15:05:44 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
Tue Dec 6 19:07:07 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* acspecific.m4 (AC_FUNC_GETLOADAVG): Use elf_begin in -lelf
- check, not elf_read.
+ check, not elf_read.
Mon Nov 7 18:18:11 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* acspecific.m4 (AC_PROG_MAKE_SET): Fix msg; $MAKE is not useful
- Make syntax.
+ Make syntax.
Fri Nov 4 09:08:33 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu>
code after AC_OUTPUT (needed for Emacs).
* acgeneral.m4 (AC_CANONICAL_SYSTEM): Move setting of alias vars
- into submacros.
+ into submacros.
* acspecific.m4 (AC_PROG_CPP): If $CPP is set and is a directory,
- ignore it.
+ ignore it.
Thu Aug 25 09:26:36 1994 David J. MacKenzie (djm@vortex.eng.umd.edu)
Specifying the System Type
==========================
- There may be some features `configure' can not figure out
+ There may be some features `configure' cannot figure out
automatically, but needs to determine by the type of host the package
will run on. Usually `configure' can figure that out, but if it prints
-a message saying it can not guess the host type, give it the
+a message saying it cannot guess the host type, give it the
`--host=TYPE' option. TYPE can either be a short name for the system
type, such as `sun4', or a canonical name with three fields:
CPU-COMPANY-SYSTEM
* config.status
- much faster on most architectures
- - now has a useful --help
+ - has a useful --help
- concurrent executions
- It is now safe to use `make -j' with configure.
+ It is safe to use `make -j' with configure.
+ - human interface improved
+ It is possible to invoke
+ ./config.status foobar
+ instead of the former form (still valid)
+ CONFIG_HEADERS= CONFIG_FILES=foobar:foo.in:bar.in
* New macros
- AC_CHECK_DECL and AC_CHECK_DECLS
To check whether a symbol is declared.
Things it might be nice to do someday. I haven't evaluated all of
these suggestions... their presence here doesn't imply my endorsement.
--djm
+-djm & his successors.
+
+
+------------------------------------------------------------------------------
+
+* Required for 2.15
+
+These are things mandatory to fulfill before releasing 2.15. There
+are also suggestions we should either satisfy right now (they're
+easy), or remove (obsoleted since then).
+
+** We should remove obsolete things.
+Both in the doc and the code. Looking for the keyword `obsolete'
+proves to be useful.
+
+** Clarify exactly our position wrt `#define' templates.
+The fact that there are `#define' templates forbids many useful
+optimizations. In fact, who really uses #define template in
+config.h.in?
+
+** Write the documentation of AC_ARG_VAR
+where should it go?
+
+** Mention automake, libtool, etc. in the Autoconf manual.
+
+** Don't hard code ASCII (I think Ben has solved this one --akim)
+there is absolutely no guarantee that 'a' to 'z' are contiguous, and
+the ISLOWER macro is not guaranteed to correctly reproduce the result
+of islower. In all variants of ASCII however, it will work correctly
+in the C locale.
+
+There is also no guarantee that toupper(i) - i is the same constant if
+non-zero. TOUPPER, hence, is not correct either. But, in all variants
+of ASCII in the C locale, it works.
+
+Tanmoy Bhattacharya (tanmoy@qcd.lanl.gov>
+
+** CONFIG_LINKS= (I think we should fix this one --akim)
+When using CONFIG_FILES= and CONFIG_HEADERS= for controlling partial
+configuration, any AC_LINK_FILES is repeated in each case (that is,
+usually, once for config.h and once per subdirectory). This is not
+elegant.
+
+Maybe Autoconf could use some kind of CONFIG_LINKS=<file-list>, having
+all such AC_LINK(ed)_FILES by default, but usable by each Makefile.in
+in rules for updating the particular links they need.
+
+From: pinard@iro.umontreal.ca
+
+** More C compilers (How come this has never been handled? --akim)
+Question: at least one common UNIX variant has a "cc" that is old K&R
+and "c89" for ANSI C. Is there any reason why AC_PROG_CC couldn't
+check for c89 before cc if it can't find gcc?
+
+hpa@yggdrasil.com (H. Peter Anvin)
+
+** @magic@ expanded in all the AC_SUBST (I think this one is obsoleted
+with the existence of Automake. Remove this wish? --akim)
+Perhaps Autoconf could have a single @magic@ frob that gets replaced with
+assignments for all the *dir variables? There is quite a plethora for each
+Makefile.in to have foodir = @foodir@.
+
+From: Roland McGrath <roland@gnu.ai.mit.edu>
+
+------------------------------------------------------------------------------
+
+* Autoconf 3
+
+** Use m4 lists?
+I think one sad decision in Autoconf was to use white space separated
+lists for some arguments. For instance AC_CHECK_FUNCS(foo bar). I
+tend to think that, even if it is not as nice, we should use m4 lists,
+i.e., AC_CHECK_FUNCS((foo, bar)) in this case. This would ease
+specializing loops, and more importantly, make them much more robust.
+
+A typical example of things that can be performed if we use m4 lists
+instead of white space separated lists is the case of things that have
+a space in their names, eg, structures.
+
+With the current scheme it would be extremely difficult to loop over
+AC_CHECK_STRUCTS(struct foo struct bar), while it natural and well
+defined for m4 lists: AC_CHECK_STRUCTS((struct foo, struct bar)).
+
+I know that makes a huge difference in syntax, but a major release
+should be ready to settle a new world. We *can* provide helping tools
+for the transition. Considering the benefits, I really think it is
+worth thinking. --akim
+
+** Forbid shell variables as main arguments
+The fact that we have to support shell variables as main argument
+forbids many interesting constructions (specialization are not always
+possible, equally for AC_REQUIRE'ing macros *with their arguments*).
+Any loop should be handled by m4 itself, and nothing should be hidden
+to it. As a consequence, shell variables on the main arguments become
+useless (the main reason we support shell variables is to allow the
+loop versions of single argument macros, eg, to go from AC_CHECK_FUNC
+to AC_CHECK_FUNCS). --akim
+
+** Use the @SUBST@ technology also for headers instead of #undef.
+This requires that acconfig.h becomes completely obsolete: autoheader
+should generate all the templates.
+
+** Specializing loops.
+For instance, make AC_CHECK_FUNC[S] automatically use any particular
+macros for the listed functions.
+This requires to obsolete the feature `break' in ACTION-IF, since all
+the loops are to be handled by m4, not sh.
+
+** Merge the two lex macros, AC_PROG_LEX and AC_DECL_YYTEXT?
+Add give a mean to *require* Flex instead of Lex.
+
+** Faces of a test
+Each macro can potentially come with several faces: of course the
+configure snippet (AC_foo), a config.h snippet (AH_foo), a system.h
+snippet (AS_foo), documentation (AD_foo) and, why not, the some C code
+for instance to replace a function.
+
+The motivation for the `faces' is to encapsulate. It is abnormal that
+once one has a configure macro, then she has to read somewhere to find
+the piece of system.h to use etc. The macros should come in a
+self-contained way, or, said it another way, PnP.
+
+A major issue is that of specialization. AC_CHECK_HEADER (or another
+name) for instance, will have as an effect, via system.h to include
+the header. But if the test for the header is specific, the generic
+AS_CHECK_HEADER will still be used. Conversely, some headers may not
+require a specific AC_ tests, but a specialized AS_ macro.
------------------------------------------------------------------------------
actually also take into account whatever value LIBS had when they
were checked for.
+ Isn't this the issue of AC_SEARCH_LIB? --akim
+ How come the list of libraries to browse not an additional parameter
+ of AC_CHECK_FUNC, exactly like for the headers? --akim
+
------------------------------------------------------------------------------
* Add AC_PROG_CC_POSIX to replace the current ad-hoc macros for AIX,
------------------------------------------------------------------------------
-* Make AC_CHECK_FUNC[S] automatically use any particular macros for the
- listed functions.
-
-------------------------------------------------------------------------------
-
* Support creating both config.h and DEFS in the same configure.
------------------------------------------------------------------------------
------------------------------------------------------------------------------
-* Split up AC_SUBST substitutions using a loop to accomodate shells
+* Split up AC_SUBST substitutions using a loop to accommodate shells
with severely limited here document sizes, if it turns out to be a problem.
I'm not sure whether the limit is on lines or bytes; if bytes, it
will be less of a problem than it was with the long lines used for
In config.status comment, put the host/target/build types, if used.
-------------------------------------------------------------------------------
-
- The argument HELP-STRING is a description of the option which
- ...
- Avoid tabs in the help string. You'll need to enclose it in `['
- and `]' in order to produce the leading spaces.
-
-Except that [...] is the convention for telling the user the default,
-So I guess a changequote(`,') or something would be in order in some cases.
-From: "K. Berry" <kb@cs.umb.edu>
-
------------------------------------------------------------------------------
The default of unlimited permission is fine, but there should be some easy
on hal.gnu.ai.mit.edu, configure is getting the wrong answer for
AC_CHECK_FUNCS(select).
-The problem here is that there's severe namespace pollution: when
+The problem here is that there's severe name space pollution: when
conftest.c includes <ctype.h> to pick up any __stub macro definitions,
it's getting a prototype declaration for select(), which collides
with the dummy declaration in conftest.c. (The chain of includes
------------------------------------------------------------------------------
put all the config.* stuff somewhere like config/?
-All these extraneous files sure clutter up a toplevel directory.
+All these extraneous files sure clutter up a top level directory.
From: "Randall S. Winchester" <rsw@eng.umd.edu>
------------------------------------------------------------------------------
It would be nice if I could (in the Makefile.in files) set
-the path to config.h. You have config.h ../config.h ../../config.h's all
+the path to config.h. You have config.h ../config.h ../../config.h's all
over the place, in the findutils-4.1 directory.
From: "Randall S. Winchester" <rsw@eng.umd.edu>
PACKAGE-CCPFLAGS)
like
-AC_PKG_WITH(kerberos,,/usr/local/athena,-lkrb -ldes,[KERBEROS KRB4
+AC_PKG_WITH(kerberos,,/usr/local/athena,-lkrb -ldes,[KERBEROS KRB4
CRYPT],include)
AC_PKG_WITH(hesiod,
[if hesiod is not in kerberos-root add --with-hesiod-root=somewhere]
also an AC_PKG_CHK_HEADER
and an AC_PKG_CHK_FUNCTION
-so one can give alternate paths to check for stuff ($PKG-ROOT/lib for
+so one can give alternate paths to check for stuff ($PKG-ROOT/lib for
example)
From: Randall Winchester
AC_C_CROSS assumes that configure was
called like 'CC=target-gcc; ./configure'. I want to write a package
that has target dependent libraries and host dependent tools. So I
-don't like to lose the distinction between CC and [G]CC_FOR_TARGET.
+don't like to lose the distinction between CC and [G]CC_FOR_TARGET.
AC_C_CROSS should check for equality of target and host.
-It would be great if
+It would be great if
GCC_FOR_TARGET
AR_FOR_TARGET
All these functions fail with errno set to ENOSYS (89)
``Operation not applicable''.
-Perhaps autoconf should have a
+Perhaps Autoconf should have a
specific macro for fnmatch, another for glob+globfree, another for
regcomp+regexec+regerror+regfree, and another for wordexp+wordfree.
This wouldn't solve the problem in general, but it should work for
-Solaris 2.4. Or autoconf could limit itself to fnmatch and regcomp,
+Solaris 2.4. Or Autoconf could limit itself to fnmatch and regcomp,
the only two functions that I know have been a problem so far.
From Paul Eggert.
* Test suite: more things to test:
** That the shell scripts produce correct output on some simple data.
** Configuration header files. That autoheader does the right thing,
- and so does AC_CONFIG_HEADER when autoconf is run.
+ and so does AC_CONFIG_HEADER when Autoconf is run.
------------------------------------------------------------------------------
and it seems like it could easily do so.
-In general, it seems to me like autoconf isn't set up to
+In general, it seems to me like Autoconf isn't set up to
let me periodically run autoheader, and then include my
"local" tests -- autoheader gets most stuff right, I'd like
to rerun it periodically without losing my local changes
------------------------------------------------------------------------------
-It is IMHO a bug that `config.status' cannot handle multiple
-simultaneous invocations. It should include the process id (`$$' in sh)
-as part of the name of any temporary files it creates.
-
-From: fjh@kryten.cs.mu.oz.au (Fergus Henderson)
-
-------------------------------------------------------------------------------
-
Timezone calculations checks.
------------------------------------------------------------------------------
------------------------------------------------------------------------------
-Mention automake, libtool, etc. in the autoconf manual.
-
-------------------------------------------------------------------------------
-
I wonder if it is possible to get the path for X11's app-defaults
directory by autoconf. Moreover, I'd like to have a general way of
accessing imake variables by autoconf, something like
------------------------------------------------------------------------------
-Question: at least one common UNIX variant has a "cc" that is old K&R
-and "c89" for ANSI C. Is there any reason why AC_PROG_CC couldn't
-check for c89 before cc if it can't find gcc?
-
-hpa@yggdrasil.com (H. Peter Anvin)
-
-------------------------------------------------------------------------------
-
Cache consistency checking: ignore cache if environment
(CC or PATH) differs.
From Mike Haertel
------------------------------------------------------------------------------
-When using CONFIG_FILES= and CONFIG_HEADERS= for controlling
-partial configuration, any AC_LINK_FILES is repeated in each case
-(that is, usually, once for config.h and once per subdirectory).
-This is not elegant.
-
-Maybe Autoconf could use some kind of CONFIG_LINKS=<file-list>,
-having all such AC_LINK(ed)_FILES by default, but usable by each
-Makefile.in in rules for updating the particular links they need.
-
-From: pinard@iro.umontreal.ca
-
-------------------------------------------------------------------------------
-
-Perhaps autoconf could have a single @magic@ frob that gets replaced with
-assignments for all the *dir variables? There is quite a plethora for each
-Makefile.in to have foodir = @foodir@.
-
-From: Roland McGrath <roland@gnu.ai.mit.edu>
-
-------------------------------------------------------------------------------
-
In most cases, when autoscan suggests something, using the search
or index command into the Info reader for autoconf manual quickly
explains me what the test is about. However, for header files
------------------------------------------------------------------------------
-Another thing I wish for is a macro which figures out which libraries are
-needed for BSD-sytle sockets. AC_PATH_X already detects this
+Another thing I wish for is a macro which figures out which libraries are
+needed for BSD-sytle sockets. AC_PATH_X already detects this
correctly...so it's just a matter of seperating out the socket-related code.
From: "Joel N. Weber II" <nemo@koa.iolani.honolulu.hi.us>
------------------------------------------------------------------------------
-Merge the two lex macros, AC_PROG_LEX and AC_DECL_YYTEXT?
-
-------------------------------------------------------------------------------
-
in order to use the AC_CANONICAL_SYSTEM macro, I have to
have install-sh somewhere nearby --- why is this? I have no real
reason to distribute install-sh, other than that its absence breaks
------------------------------------------------------------------------------
-there is absolutely no guarantee that 'a' to 'z' are
-contiguous, and the ISLOWER macro is not guaranteed to correctly
-reproduce the result of islower. In all variants of ASCII however, it
-will work correctly in the C locale.
-
-There is also no guarantee that toupper(i) - i is the same constant if
-non-zero. TOUPPER, hence, is not correct either. But, in all variants
-of ASCII in the C locale, it works.
-
-Tanmoy Bhattacharya (tanmoy@qcd.lanl.gov>
-
-------------------------------------------------------------------------------
-
autoreconf doesn't support having (in the same tree) both directories
that are parts of a larger package (sharing aclocal.m4 and acconfig.h),
and directories that are independent packages (each with their own ac*).
This may not be a problem in practice.
------------------------------------------------------------------------------
-
dnl except that we explicitly undivert AC_DIVERSION_SED, AC_DIVERSION_CMDS,
dnl and AC_DIVERSION_ICMDS.
-define(AC_DIVERSION_KILL, -1)dnl suppress output
-define(AC_DIVERSION_BINSH, 0)dnl AC_REQUIRE'd #! /bin/sh line
+define(AC_DIVERSION_KILL, -1)dnl suppress output
+define(AC_DIVERSION_BINSH, 0)dnl AC_REQUIRE'd #! /bin/sh line
define(AC_DIVERSION_NOTICE, 1)dnl copyright notice & option help strings
define(AC_DIVERSION_INIT, 2)dnl initialization code
define(AC_DIVERSION_NORMAL_4, 3)dnl AC_REQUIRE'd code, 4 level deep
dnl cases.
dnl - m4/sh polymorphism
dnl Transliteration of manifest strings should be handled by m4, while
-dnl shell variables' content will be translated at run time (tr or sed).
+dnl shell variables' content will be translated at runtime (tr or sed).
dnl AC_TR(STRING, FROM, TO, ALPHABET, DEFAULT)
dnl ------------------------------------------
dnl Pay attention to the changequotes. Inner changequotes exist for
dnl obvious reasons (we want to insert square brackets). Outer
dnl changequotes are needed because otherwise the m4 parser, when it
-dnl sees the closing bracket we add to the result believes it is the
+dnl sees the closing bracket we add to the result, believes it is the
dnl end of the body of the macro we define.
-changequote(<, >)
-define(<_AC_COMMATIZE>,
-<changequote(`, ')dnl
-pushdef(`one_line', translit(patsubst(`$1', `\\
-'), `
-', ` '))dnl
-pushdef(`no_trailing_space', patsubst(one_line, `[ ]+$'))dnl
-[patsubst(no_trailing_space, `[ ]+', `],[')]dnl
+changequote(<<, >>)
+define(<<_AC_COMMATIZE>>,
+<<changequote(``, '')dnl
+pushdef(``one_line'', translit(patsubst(``$1'', ``\\
+''), ``
+'', `` ''))dnl
+pushdef(``no_trailing_space'', patsubst(one_line, ``[ ]+$''))dnl
+[patsubst(no_trailing_space, ``[ ]+'', ``],['')]dnl
changequote([, ])dnl
-popdef(`no_trailing_space')dnl
-popdef(`one_line')>)
+popdef(``no_trailing_space'')dnl
+popdef(``one_line'')>>)
changequote([, ])
dnl AC_FOREACH(VARIABLE, LIST, EXPRESSION)
dnl ## --------------------------------- ##
-dnl AC_WRAP(STRING [,WIDTH] [, PREFIX]]))
-dnl -------------------------------------
-dnl Expands into the STRING wrapped to hold in WIDTH (which defaults to
-dnl 79). Words longer than WIDTH are not split. Each line is prefixed
-dnl with PREFIX. Note that the length of PREFIX is taken into account
-dnl by this macro to compute the length of a line.
+dnl AC_WRAP(STRING [, PREFIX[, FIRST-PREFIX[, WIDTH]]]]))
+dnl -----------------------------------------------------
+dnl Expands into STRING wrapped to hold in WIDTH columns (default = 79).
+dnl If prefix is set, each line is prefixed with it. If FIRST-PREFIX is
+dnl specified, then the first line is prefixed with it. As a special
+dnl case, if the length of the first prefix is greater than that of
+dnl PREFIX, then FIRST-PREFIX will be left alone on the first line.
+dnl
+dnl Typical outputs are:
+dnl
+dnl AC_WRAP([Short string */], [ ], [/* ], 20)
+dnl | /* Short string */
+dnl
+dnl AC_WRAP([Much longer string */], [ ], [/* ], 20)
+dnl | /* Much longer
+dnl | string */
+dnl
+dnl AC_WRAP([Short doc.], [ ], [ --short ], 30)
+dnl | --short Short doc.
dnl
-dnl FIXME: there is no checking of a longer PREFIX than WIDTH, but do
-dnl we really want to bother with people trying each single corner
-dnl of a software?
+dnl AC_WRAP([Short doc.], [ ], [ --too-wide ], 30)
+dnl | --too-wide
+dnl | Short doc.
+dnl
+dnl AC_WRAP([Super long documentation.], [ ], [ --too-wide ], 30)
+dnl | --too-wide
+dnl | Super long
+dnl | documentation.
+dnl
+dnl dnl FIXME: there is no checking of a longer PREFIX than WIDTH, but do
+dnl dnl we really want to bother with people trying each single corner
+dnl dnl of a software?
define([AC_WRAP],
-[pushdef([ac_prefix], [$3])dnl
-pushdef([ac_width], m4_eval(ifelse([$2],, 79, $2) - len(ac_prefix)))dnl
-pushdef([ac_cursor], 0)dnl
-ac_prefix[]dnl
-AC_FOREACH([ac_word], $1,
-[define([ac_cursor], m4_eval(ac_cursor + len(ac_word) + 1))dnl
-ifelse(m4_eval(ac_cursor > ac_width),
- 1, [define([ac_cursor], m4_eval(len(ac_word) + 1))]
-ac_prefix)dnl
-ac_word ])dnl
-popdef([ac_prefix])dnl
-popdef([ac_width])dnl
-popdef([ac_cursor])])
+[pushdef([AC_Prefix], m4_default([$2], []))dnl
+pushdef([AC_Prefix1], m4_default([$3], [AC_Prefix]))dnl
+pushdef([AC_Width], m4_default([$4], 79))dnl
+pushdef([AC_Cursor], len(AC_Prefix1))dnl
+AC_Prefix1[]dnl
+ifelse(m4_eval(AC_Cursor > len(AC_Prefix)),
+ 1, [define([AC_Cursor], len(AC_Prefix))
+AC_Prefix])[]dnl
+AC_FOREACH([AC_Word], [$1],
+[define([AC_Cursor], m4_eval(AC_Cursor + len(AC_Word) + 1))dnl
+ifelse(m4_eval(AC_Cursor > AC_Width),
+ 1, [define([AC_Cursor], m4_eval(len(AC_Prefix) + len(AC_Word) + 1))]
+AC_Prefix)dnl
+AC_Word ])dnl
+popdef([AC_Cursor])dnl
+popdef([AC_Width])dnl
+popdef([AC_Prefix1])dnl
+popdef([AC_Prefix])dnl
+])
dnl AC_HELP_STRING(LHS, RHS[, COLUMN])
dnl | column 2 |
dnl column 0 column 26
dnl
-dnl This macro is a adhoc version of AC_WRAP.
define([AC_HELP_STRING],
[pushdef([AC_Prefix], m4_default([$3], [ ]))dnl
-pushdef([AC_Prefix_Len], len(AC_Prefix))dnl Default: 26
-pushdef([AC_Prefix_Format], [ %-]m4_eval(len(AC_Prefix) - 3)[s])dnl [ %-23s]
-pushdef([AC_Width], m4_eval(79 - AC_Prefix_Len))dnl Width of the RHS column.
-pushdef([AC_Cursor], 0)dnl
-m4_format(AC_Prefix_Format, [$1])dnl
-dnl If the option is too wide, leave it alone on the line
-ifelse(m4_eval(len(m4_format(AC_Prefix_Format, [$1])) > AC_Prefix_Len),
- 1, [
-]AC_Prefix)dnl
-AC_FOREACH([AC_Word], $2,
-[define([AC_Cursor], m4_eval(AC_Cursor + len(AC_Word) + 1))dnl
-ifelse(m4_eval(AC_Cursor > AC_Width),
- 1, [define([AC_Cursor], m4_eval(len(AC_Word) + 1))]
-AC_Prefix)dnl
-AC_Word ])dnl
-popdef([AC_Cursor])dnl
-popdef([AC_Width])dnl
+pushdef([AC_Prefix_Format], [ %-]m4_eval(len(AC_Prefix) - 3)[s ])dnl [ %-23s ]
+AC_WRAP([$2], AC_Prefix, m4_format(AC_Prefix_Format, [$1]))dnl
popdef([AC_Prefix_Format])dnl
-popdef([AC_Prefix_Len])dnl
popdef([AC_Prefix])dnl
])
-
-
dnl ### Initialization
changequote([, ])dnl
dnl It would be great to sort, unfortunately, since each entry maybe
dnl split on several lines, it is not as evident as a simple `| sort'.
- if test -n "$ac_arg_enable_help"; then
- echo "
+ test -n "$ac_arg_enable_help" && echo "
--enable options recognized:$ac_arg_enable_help"
- fi
- if test -n "$ac_arg_with_help"; then
- echo "
+ test -n "$ac_arg_with_help" && echo "
--with options recognized:$ac_arg_with_help"
- fi
- if test -n "$ac_arg_var_help"; then
- echo "
+ test -n "$ac_arg_var_help" && echo "
Some of the influent environment variables:$ac_arg_var_help"
- fi
exit 0 ;;
-host | --host | --hos | --ho)
ac_arg_var_help="$ac_arg_var_help
AC_HELP_STRING([$1], [$2], [ ])"
AC_DIVERT_POP()dnl
-dnl Prepend instead of appending, so that envvars set on the cmd line
-dnl win over the environment. Don't register envvars not set.
-dnl Don't register several times.
+dnl Register if set and not yet registered.
+dnl If there are envvars given as arguments, they are already set,
+dnl therefore they won't be set again, which is the right thing.
case "${$1+set} $ac_configure_args" in
*" $1="* );;
"set "*) ac_configure_args="$1='[$]$1' $ac_configure_args";;
])])
-dnl ### Printing messages at autoconf run time
+dnl ### Printing messages at autoconf runtime
dnl _AC_ERRPRINT(MESSAGE)
dnl Report the MESSAGE at m4 time, with line and filename.
m4exit(ifdef([$2], [$2], 1))])
-dnl ### Printing messages at configure run time
+dnl ### Printing messages at configure runtime
dnl _AC_SH_QUOTE(STRING)
-dnl Quote the back quotes but if they are already quoted.
-dnl This exception is to provide backwards compatibility.
+dnl --------------------
+dnl If there are quoted (via backslash) backquotes do nothing, else
+dnl backslash all the quotes.
define(_AC_SH_QUOTE,
-[changequote(<<, >>)dnl
-substr(patsubst(<<X$1>>,
- <<\([^\]\)`>>, <<\1\\`>>), 1)<<>>dnl
-changequote([, ])])
+[ifelse(regexp([$1], [\\`]),
+ -1, [patsubst([$1], [`], [\\`])],
+ [AC_WARNING([needlessly backslashed backquotes.])dnl
+[$1]])])
dnl _AC_ECHO_UNQUOTED(STRING [ , FD ])
dnl Expands into a sh call to echo onto FD (default is AC_FD_MSG).
-dnl The shell perform its expansions on STRING.
+dnl The shell performs its expansions on STRING.
define([_AC_ECHO_UNQUOTED],
[echo "[$1]" 1>&ifelse($2,, AC_FD_MSG, $2)])
])
dnl AC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND [, PATH]])
+dnl -------------------------------------------------------------------------
AC_DEFUN(AC_PATH_PROG,
[# Extract the first word of "$2", so it can be a program name with args.
set dummy $2; ac_word=[$]2
AC_MSG_CHECKING([for $ac_word])
AC_CACHE_VAL(ac_cv_path_$1,
[case "[$]$1" in
- /*)
+dnl Second pattern matches DOS absolute paths.
+ /* | ?:/*)
ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
;;
- ?:/*)
- ac_cv_path_$1="[$]$1" # Let the user override the test with a dos path.
- ;;
*)
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
dnl $ac_dummy forces splitting on constant user-supplied paths.
dnl just for library $1. Separate tests with the same $1 and different $2s
dnl may have different results.
AC_DEFUN(AC_CHECK_LIB,
-[AC_VAR_PUSHDEF([ac_var], [ac_cv_lib_$1_$2])dnl
-AC_CACHE_CHECK([for $2 in -l$1], ac_var,
+[AC_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$1_$2])dnl
+AC_CACHE_CHECK([for $2 in -l$1], ac_Lib,
[ac_save_LIBS="$LIBS"
LIBS="-l$1 $5 $LIBS"
AC_TRY_LINK(dnl
char $2();
])),
[$2()],
-AC_VAR_SET(ac_var, yes), AC_VAR_SET(ac_var, no))
+AC_VAR_SET(ac_Lib, yes), AC_VAR_SET(ac_Lib, no))
LIBS="$ac_save_LIBS"])
-AC_SHELL_IFELSE(test AC_VAR_GET(ac_var) = yes,
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_Lib) = yes,
m4_default([$3],
[AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_LIB$1))
LIBS="-l$1 $LIBS"
]),
[$4])dnl
-AC_VAR_POPDEF([ac_var])dnl
+AC_VAR_POPDEF([ac_Lib])dnl
])dnl AC_CHECK_LIB
dnl AC_HAVE_LIBRARY(LIBRARY, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
-dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_TRY_COMPILE,
[cat > conftest.$ac_ext <<EOF
ifelse(AC_LANG, [FORTRAN77],
dnl AC_CHECK_HEADER(HEADER-FILE, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_CHECK_HEADER,
-[AC_VAR_PUSHDEF([ac_var_header], [ac_cv_header_$1])dnl
-AC_CACHE_CHECK([for $1], ac_var_header,
+[AC_VAR_PUSHDEF([ac_Header], [ac_cv_header_$1])dnl
+AC_CACHE_CHECK([for $1], ac_Header,
[AC_TRY_CPP([#include <$1>],
-AC_VAR_SET(ac_var_header, yes), AC_VAR_SET(ac_var_header, no))])
-AC_SHELL_IFELSE(test AC_VAR_GET(ac_var_header) = yes,
+AC_VAR_SET(ac_Header, yes), AC_VAR_SET(ac_Header, no))])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_Header) = yes,
[$2], [$3])dnl
-AC_VAR_POPDEF([ac_var_header])dnl
+AC_VAR_POPDEF([ac_Header])dnl
])dnl AC_CHECK_HEADER
dnl AC_CHECK_HEADERS(HEADER-FILE...
dnl ### Checking compiler characteristics
-dnl AC_CHECK_SIZEOF(TYPE [, CROSS-SIZE])
+dnl AC_CHECK_SIZEOF(TYPE [, CROSS-SIZE, [INCLUDES]])
+dnl ------------------------------------------------
+dnl This macro will probably be obsoleted by the macros of Kaveh. In
+dnl addition `CHECK' is not a proper name (is not boolean).
AC_DEFUN(AC_CHECK_SIZEOF,
-[AC_VAR_PUSHDEF([ac_var], [ac_cv_func_$1])dnl
-AC_CACHE_CHECK([size of $1], ac_var,
+[AC_VAR_PUSHDEF([ac_Sizeof], [ac_cv_sizeof_$1])dnl
+AC_CACHE_CHECK([size of $1], ac_Sizeof,
[AC_TRY_RUN([#include <stdio.h>
+[$3]
main()
{
FILE *f=fopen("conftestval", "w");
if (!f) exit(1);
- fprintf(f, "%d\n", sizeof($1));
+ fprintf(f, "%d\n", sizeof([$1]));
exit(0);
}],
- AC_VAR_SET(ac_var, `cat conftestval`),
- AC_VAR_SET(ac_var, 0),
- ifset([$2], AC_VAR_SET(ac_var, $2)))])
-AC_DEFINE_UNQUOTED(AC_TR_CPP(sizeof_$1), AC_VAR_GET(ac_var))
-AC_VAR_POPDEF([ac_var])dnl
+ AC_VAR_SET(ac_Sizeof, `cat conftestval`),
+ AC_VAR_SET(ac_Sizeof, 0),
+ ifset([$2], AC_VAR_SET(ac_Sizeof, $2)))])
+AC_DEFINE_UNQUOTED(AC_TR_CPP(sizeof_$1), AC_VAR_GET(ac_Sizeof))
+AC_VAR_POPDEF([ac_Sizeof])dnl
])
dnl ### Checking for typedefs
-dnl AC_CHECK_TYPE(TYPE, DEFAULT)
+dnl AC_CHECK_TYPE(TYPE, DEFAULT[, INCLUDES])
+dnl ----------------------------------------
dnl FIXME: This is an extremely badly choosen name, since this
dnl macro actually performs an AC_REPLACE_TYPE. Some day we
dnl have to clean this up.
AC_DEFUN(AC_CHECK_TYPE,
[AC_REQUIRE([AC_HEADER_STDC])dnl
-AC_MSG_CHECKING(for $1)
-AC_CACHE_VAL(ac_cv_type_$1,
+AC_VAR_PUSHDEF([ac_Type], [ac_cv_type_$1])dnl
+AC_CACHE_CHECK([for $1], ac_Type,
[AC_EGREP_CPP(dnl
changequote(<<,>>)dnl
<<(^|[^a-zA-Z_0-9])$1[^a-zA-Z_0-9]>>dnl
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
-#endif], eval "ac_cv_type_$1=yes", eval "ac_cv_type_$1=no")])dnl
-if eval "test \"`echo '$ac_cv_type_'$1`\" = yes"; then
- AC_MSG_RESULT(yes)
-else
- AC_MSG_RESULT(no)
- AC_DEFINE_UNQUOTED($1, $2)
-fi
+#endif
+[$3]
+], AC_VAR_SET(ac_Type, yes), AC_VAR_SET(ac_Type, no))])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_Type) = yes,,
+ [AC_DEFINE_UNQUOTED($1, $2)])dnl
+AC_VAR_POPDEF([ac_Type])dnl
])
# Compiler output produced by configure, useful for debugging
# configure, is in ./config.log if it exists.
-ac_cs_usage="\
-Usage: $CONFIG_STATUS @BKL@OPTIONS@BKR@
-Configure files from templates according to the current configuration.
+ac_cs_usage="\\
+\\\`$CONFIG_STATUS' configures files from templates according to the current
+configuration.
+
+Usage: $CONFIG_STATUS @BKL@OPTIONS@BKR@ FILE...
--recheck Update $CONFIG_STATUS by reconfiguring in the same conditions
--version Print the version of Autoconf and exit
By default the following files will updated.
ifset($1, [ Configuration files:
-AC_WRAP($1, 79, [ ])
+AC_WRAP($1, [ ])
])dnl
ifdef([AC_LIST_HEADER], [ Configuration headers:
-AC_WRAP(AC_LIST_HEADER, 79, [ ])]
+AC_WRAP(AC_LIST_HEADER, [ ])]
)dnl
-In order to configure a list a specified FILES and HEADERS, run
- CONFIG_FILES=FILES CONFIG_HEADERS=HEADERS $CONFIG_STATUS
-
Report bugs to <bug-autoconf@gnu.org>."
ac_cs_version="\
Configured on host `(hostname || uname -n) 2>/dev/null | sed 1q` by running
[$]0 [$]ac_configure_args"
+dnl We use a different name than CONFTEST just to help the maintainers
+dnl to make the difference between `conftest' which is the root of the
+dnl files used by configure, and `ac_cs_root' which is the root of the
+dnl files of config.status.
+# Root of the tmp file names. Use pid to allow concurrent executions.
+ac_cs_root=cs\$\$
+
+ac_given_srcdir=$srcdir
+ifdef([AC_PROVIDE_AC_PROG_INSTALL], [ac_given_INSTALL="$INSTALL"
+])dnl
+
+# Files that config.status was made for.
+AC_WRAP([config_files="]$1["]
+)
+ifdef([AC_LIST_HEADER], [AC_WRAP([config_headers="]AC_LIST_HEADER["])]
+)dnl
+
for ac_option
do
case "[\$]ac_option" in
echo "[\$]ac_cs_version"; exit 0 ;;
-help | --help | --hel | --he | --h)
echo "[\$]ac_cs_usage"; exit 0 ;;
- *) echo "[\$]ac_cs_usage"; exit 1 ;;
+ *) # Find out the files to process
+ for ac_file in [\$]config_files
+ do
+ case [\$]ac_file in
+ [\$]ac_option | [\$]ac_option:* )
+ CONFIG_FILES="[\$]CONFIG_FILES [\$]ac_file"
+ ac_option=
+ break ;;
+ esac
+ done
+ test -z "[\$]ac_option" && continue
+ for ac_file in [\$]config_headers
+ do
+ case [\$]ac_file in
+ [\$]ac_option | [\$]ac_option:* )
+ CONFIG_HEADERS="[\$]CONFIG_HEADERS [\$]ac_file"
+ ac_option=
+ break ;;
+ esac
+ done
+ test -z "[\$]ac_option" && continue
+ echo "$CONFIG_STATUS: invalid argument: [\$]ac_option"; exit 1
+ ;;
esac
done
-ac_given_srcdir=$srcdir
-ifdef([AC_PROVIDE_AC_PROG_INSTALL], [ac_given_INSTALL="$INSTALL"
-])dnl
-dnl We use a different name than CONFTEST just to help the maintainers
-dnl to make the difference between `conftest' which is the root of the
-dnl files used by configure, and `confstat' which is the root of the
-dnl files of config.status.
-# Allow concurrent executions.
-confstat=cft\$\$
EOF
cat >> $CONFIG_STATUS <<EOF
-dnl Remove all the CONFIG_FILES, and trap to remove the temp files. There
-dnl is no need to trap for the config files since they are built from `mv
-dnl tmp-file config-file', hence their update is atomic.
-: \${CONFIG_FILES="$1"}
-ifdef([AC_LIST_HEADER], [: \${CONFIG_HEADERS=AC_LIST_HEADER}
+# If there were arguments, don't assign a default value.
+if test \$[#] = 0; then
+ : \${CONFIG_FILES="\$config_files"}
+ifdef([AC_LIST_HEADER], [ : \${CONFIG_HEADERS="\$config_headers"}
])dnl
+fi
+
+# Remove all the CONFIG_FILES, and trap to remove the temp files.
+dnl There is no need to trap for the config files since they are built
+dnl from `mv tmp-file config-file', hence their update is atomic.
rm -fr \`echo "\$CONFIG_FILES" | sed "s/:@BKL@^ @BKR@*//g"\`
-trap 'rm -fr \$confstat*; exit 1' 1 2 15
+trap 'rm -fr \$ac_cs_root*; exit 1' 1 2 15
+
EOF
+
dnl The following three sections are in charge of their own here
dnl documenting into $CONFIG_STATUS.
AC_OUTPUT_FILES($1)
# If the first sed substitution is executed (which looks for macros that
# take arguments), then we branch to the cleanup section. Otherwise,
# look for a macro that doesn't take arguments.
-cat > $confstat.defs <<\EOF
+cat > $ac_cs_root.defs <<\EOF
changequote(<<, >>)dnl
s%^[ ]*<<#>>[ ]*define[ ][ ]*\([^ (][^ (]*([^)]*)\)[ ]*\(.*\)%-D\1=\2%g
t cleanup
# would break.
ac_LF_and_DOT="`echo; echo .`"
DEFS=`sed -f $conftest.defs confdefs.h | tr "$ac_LF_and_DOT" ' .'`
-rm -f $confstat.defs
+rm -f $ac_cs_root.defs
])
# Protect against being on the right side of a sed subst in config.status.
changequote(, )dnl
sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
- s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > \$confstat.subs <<\\CEOF
+ s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > \$ac_cs_root.subs <<\\CEOF
changequote([, ])dnl
dnl These here document variables are unquoted when configure runs
dnl but quoted when config.status runs, so variables are expanded once.
dnl Insert the sed substitutions of variables.
undivert(AC_DIVERSION_SED)dnl
CEOF
+
EOF
cat >> $CONFIG_STATUS <<\EOF
-
# Split the substitutions into bite-sized pieces for seds with
# small command number limits, like on Digital OSF/1 and HP-UX.
-ac_max_sed_lines=90 # Maximum number of lines to put in a sed script.
+dnl One cannot portably go further than 100 commands because of HP-UX.
+dnl Here, there are 2 cmd per line, and two cmd are added later.
+ac_max_sed_lines=48
ac_sed_frag=1 # Number of current file.
ac_beg=1 # First line for current file.
ac_end=$ac_max_sed_lines # Line after last line for current file.
ac_sed_cmds=""
while $ac_more_lines; do
if test $ac_beg -gt 1; then
- sed "1,${ac_beg}d; ${ac_end}q" $confstat.subs > $confstat.sfrag
+ sed "1,${ac_beg}d; ${ac_end}q" $ac_cs_root.subs > $ac_cs_root.sfrag
else
- sed "${ac_end}q" $confstat.subs > $confstat.sfrag
+ sed "${ac_end}q" $ac_cs_root.subs > $ac_cs_root.sfrag
fi
- if test ! -s $confstat.sfrag; then
+ if test ! -s $ac_cs_root.sfrag; then
ac_more_lines=false
- rm -f $confstat.sfrag
+ rm -f $ac_cs_root.sfrag
else
# The purpose of the label and of the branching condition is to
# speed up the sed processing (if there are no `@' at all, there
# is no need to browse any of the substitutions).
+ # These are the two extra sed commands mentioned above.
(echo ':t
-/@@BKL@a-zA-Z_@BKR@@BKL@a-zA-Z_0-9@BKR@*@/!b' && cat $confstat.sfrag) > $confstat.s$ac_sed_frag
+/@@BKL@a-zA-Z_@BKR@@BKL@a-zA-Z_0-9@BKR@*@/!b' && cat $ac_cs_root.sfrag) > $ac_cs_root.s$ac_sed_frag
if test -z "$ac_sed_cmds"; then
- ac_sed_cmds="sed -f $confstat.s$ac_sed_frag"
+ ac_sed_cmds="sed -f $ac_cs_root.s$ac_sed_frag"
else
- ac_sed_cmds="$ac_sed_cmds | sed -f $confstat.s$ac_sed_frag"
+ ac_sed_cmds="$ac_sed_cmds | sed -f $ac_cs_root.s$ac_sed_frag"
fi
ac_sed_frag=`expr $ac_sed_frag + 1`
ac_beg=$ac_end
ifdef([AC_PROVIDE_AC_PROG_INSTALL], [s%@INSTALL@%$INSTALL%;t t
])dnl
dnl The parens around the eval prevent an "illegal io" in Ultrix sh.
-" $ac_file_inputs | (eval "$ac_sed_cmds") > $confstat.out
+" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_cs_root.out
dnl This would break Makefile dependencies.
-dnl if cmp -s $ac_file $confstat.out 2>/dev/null; then
+dnl if cmp -s $ac_file $ac_cs_root.out 2>/dev/null; then
dnl echo "$ac_file is unchanged"
-dnl rm -f $confstat.out
+dnl rm -f $ac_cs_root.out
dnl else
dnl rm -f $ac_file
-dnl mv $confstat.out $ac_file
+dnl mv $ac_cs_root.out $ac_file
dnl fi
- mv $confstat.out $ac_file
+ mv $ac_cs_root.out $ac_file
fi; done
-rm -f $confstat.s*
+rm -f $ac_cs_root.s*
EOF
])dnl AC_OUTPUT_FILES
ac_eD='%g'
changequote([, ])dnl
-if test "${CONFIG_HEADERS+set}" != set; then
-EOF
-dnl Support passing AC_CONFIG_HEADER a value containing shell variables.
-cat >> $CONFIG_STATUS <<EOF
- CONFIG_HEADERS="$1"
-EOF
-cat >> $CONFIG_STATUS <<\EOF
-fi
for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
changequote(, )dnl
# Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
echo creating $ac_file
- rm -f $confstat.frag $confstat.in $confstat.out
+ rm -f $ac_cs_root.frag $ac_cs_root.in $ac_cs_root.out
ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
- cat $ac_file_inputs > $confstat.in
+ cat $ac_file_inputs > $ac_cs_root.in
EOF
rm -f conftest.vals
dnl Using a here document instead of a string reduces the quoting nightmare.
dnl Putting comments in sed scripts is not portable.
-cat > $confstat.hdr <<\EOF
+dnl One may be tempted to use the same trick to speed up the sed script
+dnl as for CONFIG_FILES (combinasion of :t and t t). Here we cannot,
+dnl because of the `#define' templates: we may enter in infinite loops
+dnl replacing `#define foo bar' by itself.
+dnl We ought to get rid of the #define templates.
+cat > $ac_cs_root.hdr <<\EOF
changequote(<<, >>)dnl
s/[\\&%]/\\&/g
s%[\\$`]%\\&%g
t cleanup
s%^[ ]*<<#>>[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\)$% ${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD}%gp
: cleanup
-s%ac_d%ac_u%gp
-s%ac_u%ac_e%gp
+s%ac_d%ac_e%gp
+s%ac_e%ac_u%gp
changequote([, ])dnl
EOF
# If some macros were called several times there might be several times
# the same #defines, which is useless. Nevertheless, we may not want to
# sort them, since we want the *last* AC_DEFINE to be honored.
-uniq confdefs.h | sed -n -f $confstat.hdr > conftest.vals
-rm -f $confstat.hdr
+uniq confdefs.h | sed -n -f $ac_cs_root.hdr > conftest.vals
+rm -f $ac_cs_root.hdr
# This sed command replaces #undef with comments. This is necessary, for
# example, in the case of _POSIX_SOURCE, which is predefined and required
changequote([, ])dnl
EOF
-# Break up conftest.vals because some shells have a limit on
-# the size of here documents, and old seds have small limits too.
-
rm -f conftest.tail
while :
do
ac_lines=`grep -c . conftest.vals`
# grep -c gives empty output for an empty file on some AIX systems.
if test -z "$ac_lines" || test "$ac_lines" -eq 0; then break; fi
- # Write a limited-size here document to $confstat.frag.
- echo ' cat > $confstat.frag <<CEOF' >> $CONFIG_STATUS
+ # Write a limited-size here document to $ac_cs_root.frag.
+ echo ' cat > $ac_cs_root.frag <<CEOF' >> $CONFIG_STATUS
+dnl A small speed up: don't consider the non `#undef' or `#define' lines.
+ echo '/^#[ ]*u*n*d*e*f*/!b' >> $CONFIG_STATUS
sed ${ac_max_here_lines}q conftest.vals >> $CONFIG_STATUS
echo 'CEOF
- sed -f $confstat.frag $confstat.in > $confstat.out
- rm -f $confstat.in
- mv $confstat.out $confstat.in
+ sed -f $ac_cs_root.frag $ac_cs_root.in > $ac_cs_root.out
+ rm -f $ac_cs_root.in
+ mv $ac_cs_root.out $ac_cs_root.in
' >> $CONFIG_STATUS
sed 1,${ac_max_here_lines}d conftest.vals > conftest.tail
rm -f conftest.vals
dnl Now back to your regularly scheduled config.status.
cat >> $CONFIG_STATUS <<\EOF
- rm -f $confstat.frag $confstat.h
- echo "/* $ac_file. Generated automatically by configure. */" > $confstat.h
- cat $confstat.in >> $confstat.h
- rm -f $confstat.in
- if cmp -s $ac_file $confstat.h 2>/dev/null; then
+ rm -f $ac_cs_root.frag $ac_cs_root.h
+ echo "/* $ac_file. Generated automatically by configure. */" > $ac_cs_root.h
+ cat $ac_cs_root.in >> $ac_cs_root.h
+ rm -f $ac_cs_root.in
+ if cmp -s $ac_file $ac_cs_root.h 2>/dev/null; then
echo "$ac_file is unchanged"
- rm -f $confstat.h
+ rm -f $ac_cs_root.h
else
# Remove last slash and all that follows it. Not all systems have dirname.
changequote(, )dnl
test ! -d "$ac_dir" && mkdir "$ac_dir"
fi
rm -f $ac_file
- mv $confstat.h $ac_file
+ mv $ac_cs_root.h $ac_file
fi
fi; done
EOF
fi
])
-dnl AC_PROG_CC takes an optional first argument which, if specified,
-dnl must be a space separated list of C compilers to search for. This
-dnl just gives the user an opportunity to specify an alternative search
-dnl list for the C compiler.
+dnl AC_PROG_CC([COMPILER ...])
+dnl --------------------------
+dnl COMPILER ... is a space separated list of C compilers to search for.
+dnl This just gives the user an opportunity to specify an alternative
+dnl search list for the C compiler.
AC_DEFUN(AC_PROG_CC,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_ARG_VAR([CFLAGS], [Extra flags for the C compiler])
AC_DEFUN(AC_PROG_AWK,
[AC_CHECK_PROGS(AWK, mawk gawk nawk awk, )])
+dnl AC_PROG_SED
+dnl -----------
+dnl Check whether the first sed in the path supports long scripts.
+dnl Set the variable $ac_cv_prog_sed_max_cmd to the maximum number
+dnl of commands to put in a sed script, `infinite' meaning a priori
+dnl infinite.
+AC_DEFUN([AC_PROG_SED],
+[AC_CACHE_CHECK([for max sed script length], ac_cv_prog_sed_max_cmd,
+[echo >conftest.s "\
+s/0/1/;s/1/2/;s/2/3/;s/3/4/;s/4/5/;s/5/6/;s/6/7/;s/7/8/;s/8/9/;s/9/0/;s/9/O/;"
+dnl 2^4 = 16 lines of 10 commands.
+for ac_cnt in 0 1 2 3
+do
+ cat conftest.s conftest.s >conftest.s1
+ mv conftest.s1 conftest.s
+done
+if test "`echo 0 | sed -f conftest.s`" != 0; then
+dnl HP-UX sed dies with scripts longer than 100 commands.
+ ac_cv_prog_sed_max_cmd=100
+else
+ ac_cv_prog_sed_max_cmd=infinite
+fi
+])dnl
+])
+
+dnl AC_PROG_BINSH
+dnl -------------
+dnl Check the maximum length of an here document.
+dnl FIXME: Is this test really reliable?
+AC_DEFUN([AC_PROG_BINSH],
+[AC_CACHE_CHECK([for max here document length], ac_cv_prog_binsh_max_heredoc,
+[echo >conftest.s1 "\
+ac_test='This is a sample string to test here documents.'"
+dnl 2^8 = 256 lines
+for ac_cnt in 0 1 2 3 4 5 6 7
+do
+ cat conftest.s1 conftest.s1 >conftest.sh
+ mv conftest.sh conftest.s1
+done
+echo 'cat >conftest.s1 <<CEOF' >conftest.sh
+cat conftest.s1 >>conftest.sh
+echo 'echo "Success"' >>conftest.sh
+echo 'CEOF' >>conftest.sh
+$SHELL ./conftest.sh
+if test "`$SHELL ./conftest.s1`" != Success; then
+dnl Some people say to limit oneself to 12, which seems incredibly small.
+ ac_cv_prog_binsh_max_heredoc=12
+else
+ ac_cv_prog_binsh_max_heredoc=infinite
+fi
+])dnl
+])dnl AC_PROG_BINSH
+
AC_DEFUN(AC_PROG_YACC,
[AC_CHECK_PROGS(YACC, 'bison -y' byacc, yacc)])
+dnl AC_PROG_CPP
+dnl -----------
AC_DEFUN(AC_PROG_CPP,
[AC_MSG_CHECKING(how to run the C preprocessor)
# On Suns, sometimes $CPP names a directory.
[if test "$GCC" = yes; then
ac_cv_c_long_double=yes
else
-AC_TRY_COMPILE(,
-[/* The Stardent Vistra knows sizeof(long double), but does not support it. */
+AC_TRY_RUN([int main() {
+/* The Stardent Vistra knows sizeof(long double), but does not support it. */
long double foo = 0.0;
/* On Ultrix 4.3 cc, long double is 4 and double is 8. */
-switch (0) case 0: case (sizeof(long double) >= sizeof(double)):;],
+exit(sizeof(long double) < sizeof(double)); }],
ac_cv_c_long_double=yes, ac_cv_c_long_double=no)
fi])
if test $ac_cv_c_long_double = yes; then
@subsection Generic Typedef Checks
This macro is used to check for typedefs not covered by the particular
-test macros.
+test macros. This macro does not fit well with the rest of Autoconf,
+and its design will probably change in the future.
+
+One of its main flaws is that missing types are not typedef'd, they are
+defined, which can lead to incompatible code in the case of pointer types.
-@defmac AC_CHECK_TYPE (@var{type}, @var{default})
+@defmac AC_CHECK_TYPE (@var{type}, @var{default}@r{[}, @var{includes}@r{]})
@maindex CHECK_TYPE
If the type @var{type} is not defined in @file{sys/types.h}, or
-@file{stdlib.h} or @file{stddef.h} if they exist, define it to be the
-C (or C++) builtin type @var{default}; e.g., @samp{short} or
+@file{stdlib.h} or @file{stddef.h} if they exist, define it to be the C
+(or C++) builtin type @var{default}; e.g., @samp{short} or
@samp{unsigned}.
@end defmac
+
@node C Compiler Characteristics, Fortran 77 Compiler Characteristics, Typedefs, Existing Tests
@section C Compiler Characteristics
@end example
@end defmac
-@defmac AC_CHECK_SIZEOF (@var{type} @r{[}, @var{cross-size}@r{]})
+@defmac AC_CHECK_SIZEOF (@var{type} @r{[}, @var{cross-size}@r{[}, @var{includes}@r{]]})
@maindex CHECK_SIZEOF
Define @code{SIZEOF_@var{uctype}} to be the size in bytes of the C (or
C++) builtin type @var{type}, e.g. @samp{int} or @samp{char *}. If
@node Invoking config.status, Questions, Invoking configure, Top
@chapter Recreating a Configuration
-The @code{configure} script creates a file named @file{config.status}
-which describes which configuration options were specified when the
-package was last configured. This file is a shell script which,
-if run, will recreate the same configuration.
+The @code{configure} script creates a file named @file{config.status},
+which actually configures, @dfn{intanciates}, the template files. It
+also keeps the configuration options that were specified when the
+package was last configured in case reconfiguring is needed.
+
+Synopsis:
+@example
+./config.status [@var{file}@dots{}]
+./config.status @var{option}
+@end example
-It supports the following options:
+In the first form, it configures the @var{files}, if none are specified,
+all the templates are instanciated. The files may be specified with or
+without their dependencies, i.e., if the files @file{foo.in} and
+@file{bar.in} are precursors of @file{foobar}, the two following lines
+are equivalent:
+@example
+./config.status foobar
+./config.status foobar:foo.in:bar.in
+@end example
+
+In the second form, no file is instanciated, but a specific action is
+taken:
@table @code
@item --recheck
Ask @file{config.status} to update itself. This option is useful if you
@item --help
@itemx -h
-Print a summary of the command line options and exit.
+Print a summary of the command line options, a list of the template
+files and exit.
@item --version
Print the version number of Autoconf used to create the @code{configure}
@defvar CONFIG_FILES
@evindex CONFIG_FILES
The files in which to perform @samp{@@@var{variable}@@} substitutions.
-The default is the arguments given to @code{AC_OUTPUT} in @file{configure.in}.
+The default is the arguments given to @code{AC_OUTPUT} in
+@file{configure.in}.
@end defvar
@defvar CONFIG_HEADERS
@evindex CONFIG_HEADERS
-The files in which to substitute C @code{#define} statements.
-The default is the arguments given to @code{AC_CONFIG_HEADER}; if that
-macro was not called, @file{config.status} ignores this variable.
+The files in which to substitute C @code{#define} statements. The
+default is the arguments given to @code{AC_CONFIG_HEADER}; if that macro
+was not called, @file{config.status} ignores this variable.
@end defvar
These variables also allow you to write @file{Makefile} rules that
(If @file{configure.in} does not call @code{AC_CONFIG_HEADER}, there is
no need to set @code{CONFIG_HEADERS} in the @code{make} rules.)
+Note that this example could also have been written
+
+@example
+@group
+config.h: stamp-h
+stamp-h: config.h.in config.status
+ ./config.status config.h
+ echo > stamp-h
+
+Makefile: Makefile.in config.status
+ ./config.status Makefile
+@end group
+@end example
+
@node Questions, Upgrading, Invoking config.status, Top
@chapter Questions About Autoconf
#! /bin/sh
-
# Guess values for system-dependent variables and create Makefiles.
-# Generated automatically using autoconf version 2.13
-# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
+# Generated automatically using autoconf version 2.14.1
+# Copyright (C) 1992, 93, 94, 95, 96, 98, 1999 Free Software Foundation, Inc.
#
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
# Defaults:
-ac_help=
+ac_arg_with_help=
+ac_arg_enable_help=
+ac_arg_var_help=
ac_default_prefix=/usr/local
# Any additions from configure.in:
SHELL=${CONFIG_SHELL-/bin/sh}
# Maximum number of lines to put in a shell here document.
ac_max_here_lines=12
+# Sed expression to map a string onto a valid sh and CPP variable names.
+ac_tr_sh='sed -e y%*+%pp%;s%[^a-zA-Z0-9_]%_%g'
+ac_tr_cpp='sed -e y%*abcdefghijklmnopqrstuvwxyz%PABCDEFGHIJKLMNOPQRSTUVWXYZ%;s%[^A-Z0-9_]%_%g'
ac_prev=
for ac_option
-help | --help | --hel | --he)
# Omit some internal or obsolete options to make the list less imposing.
# This message is too long to be a string in the A/UX 3.1 sh.
- cat << EOF
-Usage: configure [options] [host]
-Options: [defaults in brackets after descriptions]
+ cat << \EOF
+`configure' configures software source code packages to adapt to many kinds
+of systems.
+
+Usage: configure [OPTION]... [VAR=VALUE]... [HOST]
+
+To safely assign special values to environment variables (e.g., CC,
+CFLAGS...), give to `configure' the definition as VAR=VALUE.
+
+Defaults for the options are specified in brackets.
+
Configuration:
--cache-file=FILE cache test results in FILE
--help print this message
--no-create do not create output files
--quiet, --silent do not print \`checking...' messages
--version print the version of autoconf that created configure
+
Directory and file names:
--prefix=PREFIX install architecture-independent files in PREFIX
[$ac_default_prefix]
--infodir=DIR info documentation in DIR [PREFIX/info]
--mandir=DIR man documentation in DIR [PREFIX/man]
--srcdir=DIR find the sources in DIR [configure dir or ..]
+
+Program names:
--program-prefix=PREFIX prepend PREFIX to installed program names
--program-suffix=SUFFIX append SUFFIX to installed program names
--program-transform-name=PROGRAM
run sed PROGRAM on installed program names
+
EOF
- cat << EOF
+ cat << \EOF
Host type:
--build=BUILD configure for building on BUILD [BUILD=HOST]
--host=HOST configure for HOST [guessed]
--target=TARGET configure for TARGET [TARGET=HOST]
+
Features and packages:
--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
--x-includes=DIR X include files are in DIR
--x-libraries=DIR X library files are in DIR
EOF
- if test -n "$ac_help"; then
- echo "--enable and --with options recognized:$ac_help"
- fi
+ test -n "$ac_arg_enable_help" && echo "
+--enable options recognized:$ac_arg_enable_help"
+ test -n "$ac_arg_with_help" && echo "
+--with options recognized:$ac_arg_with_help"
+ test -n "$ac_arg_var_help" && echo "
+Some of the influent environment variables:$ac_arg_var_help"
exit 0 ;;
-host | --host | --hos | --ho)
verbose=yes ;;
-version | --version | --versio | --versi | --vers)
- echo "configure generated by autoconf version 2.13"
+ echo "configure generated by autoconf version 2.14.1"
exit 0 ;;
-with-* | --with-*)
-*) { echo "configure: error: $ac_option: invalid option; use --help to show usage" 1>&2; exit 1; }
;;
+ *=*)
+ ac_envvar=`echo $ac_option|sed -e 's/=.*//'`
+ # Reject names that are not valid shell variable names.
+ if test -n "`echo $ac_envvar| sed 's/[_a-zA-Z0-9]//g'`"; then
+ { echo "configure: error: $ac_envvar: invalid variable name" 1>&2; exit 1; }
+ fi
+ eval "${ac_envvar}='$ac_optarg'"
+ export $ac_envvar ;;
+
*)
if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
echo "configure: warning: $ac_option: invalid host type" 1>&2
done
if test -n "$ac_prev"; then
- { echo "configure: error: missing argument to --`echo $ac_prev | sed 's/_/-/g'`" 1>&2; exit 1; }
+ { echo "configure: error: missing argument to --\`echo $ac_prev | sed 's/_/-/g'\`" 1>&2; exit 1; }
fi
trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
fi
if test ! -r $srcdir/$ac_unique_file; then
if test "$ac_srcdir_defaulted" = yes; then
- { echo "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; }
+ { echo "configure: error: cannot find sources in $ac_confdir or .." 1>&2; exit 1; }
else
- { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; }
+ { echo "configure: error: cannot find sources in $srcdir" 1>&2; exit 1; }
fi
fi
srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
if test -r "$cache_file"; then
echo "loading cache $cache_file"
- . $cache_file
+ test -f "$cache_file" && . $cache_file
else
echo "creating cache $cache_file"
> $cache_file
rm -f conftestsed
fi
test "$program_prefix" != NONE &&
- program_transform_name="s,^,${program_prefix},; $program_transform_name"
+ program_transform_name="s,^,${program_prefix},;$program_transform_name"
# Use a double $ so make ignores it.
test "$program_suffix" != NONE &&
- program_transform_name="s,\$\$,${program_suffix},; $program_transform_name"
+ program_transform_name="s,\$\$,${program_suffix},;$program_transform_name"
# sed with no file args requires a program.
test "$program_transform_name" = "" && program_transform_name="s,x,x,"
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:551: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_path_M4'+set}'`\" = set"; then
+echo $ac_n "checking for $ac_word... $ac_c" 1>&6
+echo "configure:580: checking for $ac_word" 1>&5
+if test "${ac_cv_path_M4+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
case "$M4" in
- /*)
+ /* | ?:/*)
ac_cv_path_M4="$M4" # Let the user override the test with a path.
;;
- ?:/*)
- ac_cv_path_M4="$M4" # Let the user override the test with a dos path.
- ;;
*)
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
+ for ac_dir in $ac_dummy; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
ac_cv_path_M4="$ac_dir/$ac_word"
done
test -n "$M4" || M4="m4"
-echo $ac_n "checking whether we are using GNU m4""... $ac_c" 1>&6
-echo "configure:588: checking whether we are using GNU m4" >&5
-if eval "test \"`echo '$''{'acac_cv_gnu_m4'+set}'`\" = set"; then
+echo $ac_n "checking whether we are using GNU m4... $ac_c" 1>&6
+echo "configure:614: checking whether we are using GNU m4" 1>&5
+if test "${acac_cv_gnu_m4+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
acac_cv_gnu_m4=no
esac
fi
fi
-
echo "$ac_t""$acac_cv_gnu_m4" 1>&6
if test x"$acac_cv_gnu_m4" != xyes; then
{ echo "configure: error: GNU m4 is required" 1>&2; exit 1; }
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:609: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_AWK'+set}'`\" = set"; then
+echo $ac_n "checking for $ac_word... $ac_c" 1>&6
+echo "configure:634: checking for $ac_word" 1>&5
+if test "${ac_cv_prog_AWK+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$AWK"; then
# Extract the first word of "perl", so it can be a program name with args.
set dummy perl; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:642: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_path_PERL'+set}'`\" = set"; then
+echo $ac_n "checking for $ac_word... $ac_c" 1>&6
+echo "configure:667: checking for $ac_word" 1>&5
+if test "${ac_cv_path_PERL+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
case "$PERL" in
- /*)
+ /* | ?:/*)
ac_cv_path_PERL="$PERL" # Let the user override the test with a path.
;;
- ?:/*)
- ac_cv_path_PERL="$PERL" # Let the user override the test with a dos path.
- ;;
*)
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
+ for ac_dir in $ac_dummy; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
ac_cv_path_PERL="$ac_dir/$ac_word"
fi
done
if test -z "$ac_aux_dir"; then
- { echo "configure: error: can not find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." 1>&2; exit 1; }
+ { echo "configure: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." 1>&2; exit 1; }
fi
-ac_config_guess=$ac_aux_dir/config.guess
-ac_config_sub=$ac_aux_dir/config.sub
-ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"
+ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.
# Find a good install program. We prefer a C program (faster),
# so one script is as good as another. But avoid the broken or
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# ./install, which can be erroneously created by make from ./install.sh.
-echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:712: checking for a BSD compatible install" >&5
+echo $ac_n "checking for a BSD compatible install... $ac_c" 1>&6
+echo "configure:734: checking for a BSD compatible install" 1>&5
if test -z "$INSTALL"; then
-if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
+if test "${ac_cv_path_install+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS=":"
grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
# AIX install. It has an incompatible calling convention.
:
+ elif test $ac_prog = install &&
+ grep pwplus $ac_dir/$ac_prog >/dev/null 2>&1; then
+ # program-specific install script used by HP pwplus--don't use.
+ :
else
ac_cv_path_install="$ac_dir/$ac_prog -c"
break 2
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
# Transform confdefs.h into DEFS.
# Protect against shell expansion while executing Makefile rules.
# Protect against Makefile macro expansion.
-cat > conftest.defs <<\EOF
-s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g
+#
+# If the first sed substitution is executed (which looks for macros that
+# take arguments), then we branch to the cleanup section. Otherwise,
+# look for a macro that doesn't take arguments.
+cat > $ac_cs_root.defs <<\EOF
+s%^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*([^)]*)\)[ ]*\(.*\)%-D\1=\2%g
+t cleanup
+s%^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\)%-D\1=\2%g
+: cleanup
s%[ `~#$^&*(){}\\|;'"<>?]%\\&%g
s%\[%\\&%g
s%\]%\\&%g
s%\$%$$%g
EOF
-DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '`
-rm -f conftest.defs
+# We use echo to avoid assuming a particular line-breaking character.
+# The extra dot is to prevent the shell from consuming trailing
+# line-breaks from the sub-command output. A line-break within
+# single-quotes doesn't work because, if this script is created in a
+# platform that uses two characters for line-breaks (e.g., DOS), tr
+# would break.
+ac_LF_and_DOT="`echo; echo .`"
+DEFS=`sed -f $conftest.defs confdefs.h | tr "$ac_LF_and_DOT" ' .'`
+rm -f $ac_cs_root.defs
# Without the "./", some shells look in PATH for config.status.
# Compiler output produced by configure, useful for debugging
# configure, is in ./config.log if it exists.
-ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
+ac_cs_usage="\\
+\\\`$CONFIG_STATUS' configures files from templates according to the current
+configuration.
+
+Usage: $CONFIG_STATUS [OPTIONS] FILE...
+
+ --recheck Update $CONFIG_STATUS by reconfiguring in the same conditions
+ --version Print the version of Autoconf and exit
+ --help Display this help and exit
+
+By default the following files will updated.
+ Configuration files:
+ Makefile testsuite/Makefile
+
+Report bugs to <bug-autoconf@gnu.org>."
+
+ac_cs_version="\
+$CONFIG_STATUS generated by autoconf version 2.14.1.
+Configured on host `(hostname || uname -n) 2>/dev/null | sed 1q` by running
+ $0 $ac_configure_args"
+
+# Root of the tmp file names. Use pid to allow concurrent executions.
+ac_cs_root=cs\$\$
+
+ac_given_srcdir=$srcdir
+ac_given_INSTALL="$INSTALL"
+
+# Files that config.status was made for.
+config_files="Makefile testsuite/Makefile"
+
for ac_option
do
case "\$ac_option" in
echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
-version | --version | --versio | --versi | --vers | --ver | --ve | --v)
- echo "$CONFIG_STATUS generated by autoconf version 2.13"
- exit 0 ;;
+ echo "\$ac_cs_version"; exit 0 ;;
-help | --help | --hel | --he | --h)
echo "\$ac_cs_usage"; exit 0 ;;
- *) echo "\$ac_cs_usage"; exit 1 ;;
+ *) # Find out the files to process
+ for ac_file in \$config_files
+ do
+ case \$ac_file in
+ \$ac_option | \$ac_option:* )
+ CONFIG_FILES="\$CONFIG_FILES \$ac_file"
+ ac_option=
+ break ;;
+ esac
+ done
+ test -z "\$ac_option" && continue
+ for ac_file in \$config_headers
+ do
+ case \$ac_file in
+ \$ac_option | \$ac_option:* )
+ CONFIG_HEADERS="\$CONFIG_HEADERS \$ac_file"
+ ac_option=
+ break ;;
+ esac
+ done
+ test -z "\$ac_option" && continue
+ echo "$CONFIG_STATUS: invalid argument: \$ac_option"; exit 1
+ ;;
esac
done
-ac_given_srcdir=$srcdir
-ac_given_INSTALL="$INSTALL"
-
-trap 'rm -fr `echo "Makefile testsuite/Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
EOF
+
cat >> $CONFIG_STATUS <<EOF
+# If there were arguments, don't assign a default value.
+if test \$# = 0; then
+ : \${CONFIG_FILES="\$config_files"}
+fi
+# Remove all the CONFIG_FILES, and trap to remove the temp files.
+rm -fr \`echo "\$CONFIG_FILES" | sed "s/:[^ ]*//g"\`
+trap 'rm -fr \$ac_cs_root*; exit 1' 1 2 15
+
+EOF
+
+cat >>$CONFIG_STATUS <<EOF
# Protect against being on the right side of a sed subst in config.status.
sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
- s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
-$ac_vpsub
-$extrasub
-s%@SHELL@%$SHELL%g
-s%@CFLAGS@%$CFLAGS%g
-s%@CPPFLAGS@%$CPPFLAGS%g
-s%@CXXFLAGS@%$CXXFLAGS%g
-s%@FFLAGS@%$FFLAGS%g
-s%@DEFS@%$DEFS%g
-s%@LDFLAGS@%$LDFLAGS%g
-s%@LIBS@%$LIBS%g
-s%@exec_prefix@%$exec_prefix%g
-s%@prefix@%$prefix%g
-s%@program_transform_name@%$program_transform_name%g
-s%@bindir@%$bindir%g
-s%@sbindir@%$sbindir%g
-s%@libexecdir@%$libexecdir%g
-s%@datadir@%$datadir%g
-s%@sysconfdir@%$sysconfdir%g
-s%@sharedstatedir@%$sharedstatedir%g
-s%@localstatedir@%$localstatedir%g
-s%@libdir@%$libdir%g
-s%@includedir@%$includedir%g
-s%@oldincludedir@%$oldincludedir%g
-s%@infodir@%$infodir%g
-s%@mandir@%$mandir%g
-s%@M4@%$M4%g
-s%@AWK@%$AWK%g
-s%@PERL@%$PERL%g
-s%@SCRIPTS@%$SCRIPTS%g
-s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
-s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
-s%@INSTALL_DATA@%$INSTALL_DATA%g
-s%@standards_info@%$standards_info%g
-s%@standards_dvi@%$standards_dvi%g
-
+ s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > \$ac_cs_root.subs <<\\CEOF
+s%@SHELL@%$SHELL%;t t
+s%@CFLAGS@%$CFLAGS%;t t
+s%@CPPFLAGS@%$CPPFLAGS%;t t
+s%@CXXFLAGS@%$CXXFLAGS%;t t
+s%@FFLAGS@%$FFLAGS%;t t
+s%@DEFS@%$DEFS%;t t
+s%@LDFLAGS@%$LDFLAGS%;t t
+s%@LIBS@%$LIBS%;t t
+s%@exec_prefix@%$exec_prefix%;t t
+s%@prefix@%$prefix%;t t
+s%@program_transform_name@%$program_transform_name%;t t
+s%@bindir@%$bindir%;t t
+s%@sbindir@%$sbindir%;t t
+s%@libexecdir@%$libexecdir%;t t
+s%@datadir@%$datadir%;t t
+s%@sysconfdir@%$sysconfdir%;t t
+s%@sharedstatedir@%$sharedstatedir%;t t
+s%@localstatedir@%$localstatedir%;t t
+s%@libdir@%$libdir%;t t
+s%@includedir@%$includedir%;t t
+s%@oldincludedir@%$oldincludedir%;t t
+s%@infodir@%$infodir%;t t
+s%@mandir@%$mandir%;t t
+s%@M4@%$M4%;t t
+s%@AWK@%$AWK%;t t
+s%@PERL@%$PERL%;t t
+s%@SCRIPTS@%$SCRIPTS%;t t
+s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%;t t
+s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%;t t
+s%@INSTALL_DATA@%$INSTALL_DATA%;t t
+s%@standards_info@%$standards_info%;t t
+s%@standards_dvi@%$standards_dvi%;t t
CEOF
+
EOF
cat >> $CONFIG_STATUS <<\EOF
-
# Split the substitutions into bite-sized pieces for seds with
# small command number limits, like on Digital OSF/1 and HP-UX.
-ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
-ac_file=1 # Number of current file.
+ac_max_sed_lines=48
+ac_sed_frag=1 # Number of current file.
ac_beg=1 # First line for current file.
-ac_end=$ac_max_sed_cmds # Line after last line for current file.
+ac_end=$ac_max_sed_lines # Line after last line for current file.
ac_more_lines=:
ac_sed_cmds=""
while $ac_more_lines; do
if test $ac_beg -gt 1; then
- sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
+ sed "1,${ac_beg}d; ${ac_end}q" $ac_cs_root.subs > $ac_cs_root.sfrag
else
- sed "${ac_end}q" conftest.subs > conftest.s$ac_file
+ sed "${ac_end}q" $ac_cs_root.subs > $ac_cs_root.sfrag
fi
- if test ! -s conftest.s$ac_file; then
+ if test ! -s $ac_cs_root.sfrag; then
ac_more_lines=false
- rm -f conftest.s$ac_file
+ rm -f $ac_cs_root.sfrag
else
+ # The purpose of the label and of the branching condition is to
+ # speed up the sed processing (if there are no `@' at all, there
+ # is no need to browse any of the substitutions).
+ # These are the two extra sed commands mentioned above.
+ (echo ':t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $ac_cs_root.sfrag) > $ac_cs_root.s$ac_sed_frag
if test -z "$ac_sed_cmds"; then
- ac_sed_cmds="sed -f conftest.s$ac_file"
+ ac_sed_cmds="sed -f $ac_cs_root.s$ac_sed_frag"
else
- ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
+ ac_sed_cmds="$ac_sed_cmds | sed -f $ac_cs_root.s$ac_sed_frag"
fi
- ac_file=`expr $ac_file + 1`
+ ac_sed_frag=`expr $ac_sed_frag + 1`
ac_beg=$ac_end
- ac_end=`expr $ac_end + $ac_max_sed_cmds`
+ ac_end=`expr $ac_end + $ac_max_sed_lines`
fi
done
if test -z "$ac_sed_cmds"; then
ac_sed_cmds=cat
fi
-EOF
-cat >> $CONFIG_STATUS <<EOF
-
-CONFIG_FILES=\${CONFIG_FILES-"Makefile testsuite/Makefile"}
EOF
+
cat >> $CONFIG_STATUS <<\EOF
for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
# Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
*) ac_comsub= ;;
esac
- ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
+# Don't redirect the output to AC_FILE directly: use `mv' so that updating
+# is atomic, and doesn't need trapping.
+ ac_file_inputs=`echo $ac_file_in | sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
+EOF
+cat >>$CONFIG_STATUS <<EOF
sed -e "$ac_comsub
-s%@configure_input@%$configure_input%g
-s%@srcdir@%$srcdir%g
-s%@top_srcdir@%$top_srcdir%g
-s%@INSTALL@%$INSTALL%g
-" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
+$ac_vpsub
+$extrasub
+EOF
+cat >>$CONFIG_STATUS <<\EOF
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s%@configure_input@%$configure_input%;t t
+s%@srcdir@%$srcdir%;t t
+s%@top_srcdir@%$top_srcdir%;t t
+s%@INSTALL@%$INSTALL%;t t
+" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_cs_root.out
+ mv $ac_cs_root.out $ac_file
fi; done
-rm -f conftest.s*
-
+rm -f $ac_cs_root.s*
EOF
+
+
cat >> $CONFIG_STATUS <<EOF
EOF
EOF
chmod +x $CONFIG_STATUS
rm -fr confdefs* $ac_clean_files
-test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
+test "$no_create" = yes || $SHELL $CONFIG_STATUS || exit 1
@subsection Generic Typedef Checks
This macro is used to check for typedefs not covered by the particular
-test macros.
+test macros. This macro does not fit well with the rest of Autoconf,
+and its design will probably change in the future.
+
+One of its main flaws is that missing types are not typedef'd, they are
+defined, which can lead to incompatible code in the case of pointer types.
-@defmac AC_CHECK_TYPE (@var{type}, @var{default})
+@defmac AC_CHECK_TYPE (@var{type}, @var{default}@r{[}, @var{includes}@r{]})
@maindex CHECK_TYPE
If the type @var{type} is not defined in @file{sys/types.h}, or
-@file{stdlib.h} or @file{stddef.h} if they exist, define it to be the
-C (or C++) builtin type @var{default}; e.g., @samp{short} or
+@file{stdlib.h} or @file{stddef.h} if they exist, define it to be the C
+(or C++) builtin type @var{default}; e.g., @samp{short} or
@samp{unsigned}.
@end defmac
+
@node C Compiler Characteristics, Fortran 77 Compiler Characteristics, Typedefs, Existing Tests
@section C Compiler Characteristics
@end example
@end defmac
-@defmac AC_CHECK_SIZEOF (@var{type} @r{[}, @var{cross-size}@r{]})
+@defmac AC_CHECK_SIZEOF (@var{type} @r{[}, @var{cross-size}@r{[}, @var{includes}@r{]]})
@maindex CHECK_SIZEOF
Define @code{SIZEOF_@var{uctype}} to be the size in bytes of the C (or
C++) builtin type @var{type}, e.g. @samp{int} or @samp{char *}. If
@node Invoking config.status, Questions, Invoking configure, Top
@chapter Recreating a Configuration
-The @code{configure} script creates a file named @file{config.status}
-which describes which configuration options were specified when the
-package was last configured. This file is a shell script which,
-if run, will recreate the same configuration.
+The @code{configure} script creates a file named @file{config.status},
+which actually configures, @dfn{intanciates}, the template files. It
+also keeps the configuration options that were specified when the
+package was last configured in case reconfiguring is needed.
+
+Synopsis:
+@example
+./config.status [@var{file}@dots{}]
+./config.status @var{option}
+@end example
-It supports the following options:
+In the first form, it configures the @var{files}, if none are specified,
+all the templates are instanciated. The files may be specified with or
+without their dependencies, i.e., if the files @file{foo.in} and
+@file{bar.in} are precursors of @file{foobar}, the two following lines
+are equivalent:
+@example
+./config.status foobar
+./config.status foobar:foo.in:bar.in
+@end example
+
+In the second form, no file is instanciated, but a specific action is
+taken:
@table @code
@item --recheck
Ask @file{config.status} to update itself. This option is useful if you
@item --help
@itemx -h
-Print a summary of the command line options and exit.
+Print a summary of the command line options, a list of the template
+files and exit.
@item --version
Print the version number of Autoconf used to create the @code{configure}
@defvar CONFIG_FILES
@evindex CONFIG_FILES
The files in which to perform @samp{@@@var{variable}@@} substitutions.
-The default is the arguments given to @code{AC_OUTPUT} in @file{configure.in}.
+The default is the arguments given to @code{AC_OUTPUT} in
+@file{configure.in}.
@end defvar
@defvar CONFIG_HEADERS
@evindex CONFIG_HEADERS
-The files in which to substitute C @code{#define} statements.
-The default is the arguments given to @code{AC_CONFIG_HEADER}; if that
-macro was not called, @file{config.status} ignores this variable.
+The files in which to substitute C @code{#define} statements. The
+default is the arguments given to @code{AC_CONFIG_HEADER}; if that macro
+was not called, @file{config.status} ignores this variable.
@end defvar
These variables also allow you to write @file{Makefile} rules that
(If @file{configure.in} does not call @code{AC_CONFIG_HEADER}, there is
no need to set @code{CONFIG_HEADERS} in the @code{make} rules.)
+Note that this example could also have been written
+
+@example
+@group
+config.h: stamp-h
+stamp-h: config.h.in config.status
+ ./config.status config.h
+ echo > stamp-h
+
+Makefile: Makefile.in config.status
+ ./config.status Makefile
+@end group
+@end example
+
@node Questions, Upgrading, Invoking config.status, Top
@chapter Questions About Autoconf
dnl except that we explicitly undivert AC_DIVERSION_SED, AC_DIVERSION_CMDS,
dnl and AC_DIVERSION_ICMDS.
-define(AC_DIVERSION_KILL, -1)dnl suppress output
-define(AC_DIVERSION_BINSH, 0)dnl AC_REQUIRE'd #! /bin/sh line
+define(AC_DIVERSION_KILL, -1)dnl suppress output
+define(AC_DIVERSION_BINSH, 0)dnl AC_REQUIRE'd #! /bin/sh line
define(AC_DIVERSION_NOTICE, 1)dnl copyright notice & option help strings
define(AC_DIVERSION_INIT, 2)dnl initialization code
define(AC_DIVERSION_NORMAL_4, 3)dnl AC_REQUIRE'd code, 4 level deep
dnl cases.
dnl - m4/sh polymorphism
dnl Transliteration of manifest strings should be handled by m4, while
-dnl shell variables' content will be translated at run time (tr or sed).
+dnl shell variables' content will be translated at runtime (tr or sed).
dnl AC_TR(STRING, FROM, TO, ALPHABET, DEFAULT)
dnl ------------------------------------------
dnl Pay attention to the changequotes. Inner changequotes exist for
dnl obvious reasons (we want to insert square brackets). Outer
dnl changequotes are needed because otherwise the m4 parser, when it
-dnl sees the closing bracket we add to the result believes it is the
+dnl sees the closing bracket we add to the result, believes it is the
dnl end of the body of the macro we define.
-changequote(<, >)
-define(<_AC_COMMATIZE>,
-<changequote(`, ')dnl
-pushdef(`one_line', translit(patsubst(`$1', `\\
-'), `
-', ` '))dnl
-pushdef(`no_trailing_space', patsubst(one_line, `[ ]+$'))dnl
-[patsubst(no_trailing_space, `[ ]+', `],[')]dnl
+changequote(<<, >>)
+define(<<_AC_COMMATIZE>>,
+<<changequote(``, '')dnl
+pushdef(``one_line'', translit(patsubst(``$1'', ``\\
+''), ``
+'', `` ''))dnl
+pushdef(``no_trailing_space'', patsubst(one_line, ``[ ]+$''))dnl
+[patsubst(no_trailing_space, ``[ ]+'', ``],['')]dnl
changequote([, ])dnl
-popdef(`no_trailing_space')dnl
-popdef(`one_line')>)
+popdef(``no_trailing_space'')dnl
+popdef(``one_line'')>>)
changequote([, ])
dnl AC_FOREACH(VARIABLE, LIST, EXPRESSION)
dnl ## --------------------------------- ##
-dnl AC_WRAP(STRING [,WIDTH] [, PREFIX]]))
-dnl -------------------------------------
-dnl Expands into the STRING wrapped to hold in WIDTH (which defaults to
-dnl 79). Words longer than WIDTH are not split. Each line is prefixed
-dnl with PREFIX. Note that the length of PREFIX is taken into account
-dnl by this macro to compute the length of a line.
+dnl AC_WRAP(STRING [, PREFIX[, FIRST-PREFIX[, WIDTH]]]]))
+dnl -----------------------------------------------------
+dnl Expands into STRING wrapped to hold in WIDTH columns (default = 79).
+dnl If prefix is set, each line is prefixed with it. If FIRST-PREFIX is
+dnl specified, then the first line is prefixed with it. As a special
+dnl case, if the length of the first prefix is greater than that of
+dnl PREFIX, then FIRST-PREFIX will be left alone on the first line.
+dnl
+dnl Typical outputs are:
+dnl
+dnl AC_WRAP([Short string */], [ ], [/* ], 20)
+dnl | /* Short string */
+dnl
+dnl AC_WRAP([Much longer string */], [ ], [/* ], 20)
+dnl | /* Much longer
+dnl | string */
+dnl
+dnl AC_WRAP([Short doc.], [ ], [ --short ], 30)
+dnl | --short Short doc.
dnl
-dnl FIXME: there is no checking of a longer PREFIX than WIDTH, but do
-dnl we really want to bother with people trying each single corner
-dnl of a software?
+dnl AC_WRAP([Short doc.], [ ], [ --too-wide ], 30)
+dnl | --too-wide
+dnl | Short doc.
+dnl
+dnl AC_WRAP([Super long documentation.], [ ], [ --too-wide ], 30)
+dnl | --too-wide
+dnl | Super long
+dnl | documentation.
+dnl
+dnl dnl FIXME: there is no checking of a longer PREFIX than WIDTH, but do
+dnl dnl we really want to bother with people trying each single corner
+dnl dnl of a software?
define([AC_WRAP],
-[pushdef([ac_prefix], [$3])dnl
-pushdef([ac_width], m4_eval(ifelse([$2],, 79, $2) - len(ac_prefix)))dnl
-pushdef([ac_cursor], 0)dnl
-ac_prefix[]dnl
-AC_FOREACH([ac_word], $1,
-[define([ac_cursor], m4_eval(ac_cursor + len(ac_word) + 1))dnl
-ifelse(m4_eval(ac_cursor > ac_width),
- 1, [define([ac_cursor], m4_eval(len(ac_word) + 1))]
-ac_prefix)dnl
-ac_word ])dnl
-popdef([ac_prefix])dnl
-popdef([ac_width])dnl
-popdef([ac_cursor])])
+[pushdef([AC_Prefix], m4_default([$2], []))dnl
+pushdef([AC_Prefix1], m4_default([$3], [AC_Prefix]))dnl
+pushdef([AC_Width], m4_default([$4], 79))dnl
+pushdef([AC_Cursor], len(AC_Prefix1))dnl
+AC_Prefix1[]dnl
+ifelse(m4_eval(AC_Cursor > len(AC_Prefix)),
+ 1, [define([AC_Cursor], len(AC_Prefix))
+AC_Prefix])[]dnl
+AC_FOREACH([AC_Word], [$1],
+[define([AC_Cursor], m4_eval(AC_Cursor + len(AC_Word) + 1))dnl
+ifelse(m4_eval(AC_Cursor > AC_Width),
+ 1, [define([AC_Cursor], m4_eval(len(AC_Prefix) + len(AC_Word) + 1))]
+AC_Prefix)dnl
+AC_Word ])dnl
+popdef([AC_Cursor])dnl
+popdef([AC_Width])dnl
+popdef([AC_Prefix1])dnl
+popdef([AC_Prefix])dnl
+])
dnl AC_HELP_STRING(LHS, RHS[, COLUMN])
dnl | column 2 |
dnl column 0 column 26
dnl
-dnl This macro is a adhoc version of AC_WRAP.
define([AC_HELP_STRING],
[pushdef([AC_Prefix], m4_default([$3], [ ]))dnl
-pushdef([AC_Prefix_Len], len(AC_Prefix))dnl Default: 26
-pushdef([AC_Prefix_Format], [ %-]m4_eval(len(AC_Prefix) - 3)[s])dnl [ %-23s]
-pushdef([AC_Width], m4_eval(79 - AC_Prefix_Len))dnl Width of the RHS column.
-pushdef([AC_Cursor], 0)dnl
-m4_format(AC_Prefix_Format, [$1])dnl
-dnl If the option is too wide, leave it alone on the line
-ifelse(m4_eval(len(m4_format(AC_Prefix_Format, [$1])) > AC_Prefix_Len),
- 1, [
-]AC_Prefix)dnl
-AC_FOREACH([AC_Word], $2,
-[define([AC_Cursor], m4_eval(AC_Cursor + len(AC_Word) + 1))dnl
-ifelse(m4_eval(AC_Cursor > AC_Width),
- 1, [define([AC_Cursor], m4_eval(len(AC_Word) + 1))]
-AC_Prefix)dnl
-AC_Word ])dnl
-popdef([AC_Cursor])dnl
-popdef([AC_Width])dnl
+pushdef([AC_Prefix_Format], [ %-]m4_eval(len(AC_Prefix) - 3)[s ])dnl [ %-23s ]
+AC_WRAP([$2], AC_Prefix, m4_format(AC_Prefix_Format, [$1]))dnl
popdef([AC_Prefix_Format])dnl
-popdef([AC_Prefix_Len])dnl
popdef([AC_Prefix])dnl
])
-
-
dnl ### Initialization
changequote([, ])dnl
dnl It would be great to sort, unfortunately, since each entry maybe
dnl split on several lines, it is not as evident as a simple `| sort'.
- if test -n "$ac_arg_enable_help"; then
- echo "
+ test -n "$ac_arg_enable_help" && echo "
--enable options recognized:$ac_arg_enable_help"
- fi
- if test -n "$ac_arg_with_help"; then
- echo "
+ test -n "$ac_arg_with_help" && echo "
--with options recognized:$ac_arg_with_help"
- fi
- if test -n "$ac_arg_var_help"; then
- echo "
+ test -n "$ac_arg_var_help" && echo "
Some of the influent environment variables:$ac_arg_var_help"
- fi
exit 0 ;;
-host | --host | --hos | --ho)
ac_arg_var_help="$ac_arg_var_help
AC_HELP_STRING([$1], [$2], [ ])"
AC_DIVERT_POP()dnl
-dnl Prepend instead of appending, so that envvars set on the cmd line
-dnl win over the environment. Don't register envvars not set.
-dnl Don't register several times.
+dnl Register if set and not yet registered.
+dnl If there are envvars given as arguments, they are already set,
+dnl therefore they won't be set again, which is the right thing.
case "${$1+set} $ac_configure_args" in
*" $1="* );;
"set "*) ac_configure_args="$1='[$]$1' $ac_configure_args";;
])])
-dnl ### Printing messages at autoconf run time
+dnl ### Printing messages at autoconf runtime
dnl _AC_ERRPRINT(MESSAGE)
dnl Report the MESSAGE at m4 time, with line and filename.
m4exit(ifdef([$2], [$2], 1))])
-dnl ### Printing messages at configure run time
+dnl ### Printing messages at configure runtime
dnl _AC_SH_QUOTE(STRING)
-dnl Quote the back quotes but if they are already quoted.
-dnl This exception is to provide backwards compatibility.
+dnl --------------------
+dnl If there are quoted (via backslash) backquotes do nothing, else
+dnl backslash all the quotes.
define(_AC_SH_QUOTE,
-[changequote(<<, >>)dnl
-substr(patsubst(<<X$1>>,
- <<\([^\]\)`>>, <<\1\\`>>), 1)<<>>dnl
-changequote([, ])])
+[ifelse(regexp([$1], [\\`]),
+ -1, [patsubst([$1], [`], [\\`])],
+ [AC_WARNING([needlessly backslashed backquotes.])dnl
+[$1]])])
dnl _AC_ECHO_UNQUOTED(STRING [ , FD ])
dnl Expands into a sh call to echo onto FD (default is AC_FD_MSG).
-dnl The shell perform its expansions on STRING.
+dnl The shell performs its expansions on STRING.
define([_AC_ECHO_UNQUOTED],
[echo "[$1]" 1>&ifelse($2,, AC_FD_MSG, $2)])
])
dnl AC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND [, PATH]])
+dnl -------------------------------------------------------------------------
AC_DEFUN(AC_PATH_PROG,
[# Extract the first word of "$2", so it can be a program name with args.
set dummy $2; ac_word=[$]2
AC_MSG_CHECKING([for $ac_word])
AC_CACHE_VAL(ac_cv_path_$1,
[case "[$]$1" in
- /*)
+dnl Second pattern matches DOS absolute paths.
+ /* | ?:/*)
ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
;;
- ?:/*)
- ac_cv_path_$1="[$]$1" # Let the user override the test with a dos path.
- ;;
*)
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
dnl $ac_dummy forces splitting on constant user-supplied paths.
dnl just for library $1. Separate tests with the same $1 and different $2s
dnl may have different results.
AC_DEFUN(AC_CHECK_LIB,
-[AC_VAR_PUSHDEF([ac_var], [ac_cv_lib_$1_$2])dnl
-AC_CACHE_CHECK([for $2 in -l$1], ac_var,
+[AC_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$1_$2])dnl
+AC_CACHE_CHECK([for $2 in -l$1], ac_Lib,
[ac_save_LIBS="$LIBS"
LIBS="-l$1 $5 $LIBS"
AC_TRY_LINK(dnl
char $2();
])),
[$2()],
-AC_VAR_SET(ac_var, yes), AC_VAR_SET(ac_var, no))
+AC_VAR_SET(ac_Lib, yes), AC_VAR_SET(ac_Lib, no))
LIBS="$ac_save_LIBS"])
-AC_SHELL_IFELSE(test AC_VAR_GET(ac_var) = yes,
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_Lib) = yes,
m4_default([$3],
[AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_LIB$1))
LIBS="-l$1 $LIBS"
]),
[$4])dnl
-AC_VAR_POPDEF([ac_var])dnl
+AC_VAR_POPDEF([ac_Lib])dnl
])dnl AC_CHECK_LIB
dnl AC_HAVE_LIBRARY(LIBRARY, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
-dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_TRY_COMPILE,
[cat > conftest.$ac_ext <<EOF
ifelse(AC_LANG, [FORTRAN77],
dnl AC_CHECK_HEADER(HEADER-FILE, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_CHECK_HEADER,
-[AC_VAR_PUSHDEF([ac_var_header], [ac_cv_header_$1])dnl
-AC_CACHE_CHECK([for $1], ac_var_header,
+[AC_VAR_PUSHDEF([ac_Header], [ac_cv_header_$1])dnl
+AC_CACHE_CHECK([for $1], ac_Header,
[AC_TRY_CPP([#include <$1>],
-AC_VAR_SET(ac_var_header, yes), AC_VAR_SET(ac_var_header, no))])
-AC_SHELL_IFELSE(test AC_VAR_GET(ac_var_header) = yes,
+AC_VAR_SET(ac_Header, yes), AC_VAR_SET(ac_Header, no))])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_Header) = yes,
[$2], [$3])dnl
-AC_VAR_POPDEF([ac_var_header])dnl
+AC_VAR_POPDEF([ac_Header])dnl
])dnl AC_CHECK_HEADER
dnl AC_CHECK_HEADERS(HEADER-FILE...
dnl ### Checking compiler characteristics
-dnl AC_CHECK_SIZEOF(TYPE [, CROSS-SIZE])
+dnl AC_CHECK_SIZEOF(TYPE [, CROSS-SIZE, [INCLUDES]])
+dnl ------------------------------------------------
+dnl This macro will probably be obsoleted by the macros of Kaveh. In
+dnl addition `CHECK' is not a proper name (is not boolean).
AC_DEFUN(AC_CHECK_SIZEOF,
-[AC_VAR_PUSHDEF([ac_var], [ac_cv_func_$1])dnl
-AC_CACHE_CHECK([size of $1], ac_var,
+[AC_VAR_PUSHDEF([ac_Sizeof], [ac_cv_sizeof_$1])dnl
+AC_CACHE_CHECK([size of $1], ac_Sizeof,
[AC_TRY_RUN([#include <stdio.h>
+[$3]
main()
{
FILE *f=fopen("conftestval", "w");
if (!f) exit(1);
- fprintf(f, "%d\n", sizeof($1));
+ fprintf(f, "%d\n", sizeof([$1]));
exit(0);
}],
- AC_VAR_SET(ac_var, `cat conftestval`),
- AC_VAR_SET(ac_var, 0),
- ifset([$2], AC_VAR_SET(ac_var, $2)))])
-AC_DEFINE_UNQUOTED(AC_TR_CPP(sizeof_$1), AC_VAR_GET(ac_var))
-AC_VAR_POPDEF([ac_var])dnl
+ AC_VAR_SET(ac_Sizeof, `cat conftestval`),
+ AC_VAR_SET(ac_Sizeof, 0),
+ ifset([$2], AC_VAR_SET(ac_Sizeof, $2)))])
+AC_DEFINE_UNQUOTED(AC_TR_CPP(sizeof_$1), AC_VAR_GET(ac_Sizeof))
+AC_VAR_POPDEF([ac_Sizeof])dnl
])
dnl ### Checking for typedefs
-dnl AC_CHECK_TYPE(TYPE, DEFAULT)
+dnl AC_CHECK_TYPE(TYPE, DEFAULT[, INCLUDES])
+dnl ----------------------------------------
dnl FIXME: This is an extremely badly choosen name, since this
dnl macro actually performs an AC_REPLACE_TYPE. Some day we
dnl have to clean this up.
AC_DEFUN(AC_CHECK_TYPE,
[AC_REQUIRE([AC_HEADER_STDC])dnl
-AC_MSG_CHECKING(for $1)
-AC_CACHE_VAL(ac_cv_type_$1,
+AC_VAR_PUSHDEF([ac_Type], [ac_cv_type_$1])dnl
+AC_CACHE_CHECK([for $1], ac_Type,
[AC_EGREP_CPP(dnl
changequote(<<,>>)dnl
<<(^|[^a-zA-Z_0-9])$1[^a-zA-Z_0-9]>>dnl
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
-#endif], eval "ac_cv_type_$1=yes", eval "ac_cv_type_$1=no")])dnl
-if eval "test \"`echo '$ac_cv_type_'$1`\" = yes"; then
- AC_MSG_RESULT(yes)
-else
- AC_MSG_RESULT(no)
- AC_DEFINE_UNQUOTED($1, $2)
-fi
+#endif
+[$3]
+], AC_VAR_SET(ac_Type, yes), AC_VAR_SET(ac_Type, no))])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_Type) = yes,,
+ [AC_DEFINE_UNQUOTED($1, $2)])dnl
+AC_VAR_POPDEF([ac_Type])dnl
])
# Compiler output produced by configure, useful for debugging
# configure, is in ./config.log if it exists.
-ac_cs_usage="\
-Usage: $CONFIG_STATUS @BKL@OPTIONS@BKR@
-Configure files from templates according to the current configuration.
+ac_cs_usage="\\
+\\\`$CONFIG_STATUS' configures files from templates according to the current
+configuration.
+
+Usage: $CONFIG_STATUS @BKL@OPTIONS@BKR@ FILE...
--recheck Update $CONFIG_STATUS by reconfiguring in the same conditions
--version Print the version of Autoconf and exit
By default the following files will updated.
ifset($1, [ Configuration files:
-AC_WRAP($1, 79, [ ])
+AC_WRAP($1, [ ])
])dnl
ifdef([AC_LIST_HEADER], [ Configuration headers:
-AC_WRAP(AC_LIST_HEADER, 79, [ ])]
+AC_WRAP(AC_LIST_HEADER, [ ])]
)dnl
-In order to configure a list a specified FILES and HEADERS, run
- CONFIG_FILES=FILES CONFIG_HEADERS=HEADERS $CONFIG_STATUS
-
Report bugs to <bug-autoconf@gnu.org>."
ac_cs_version="\
Configured on host `(hostname || uname -n) 2>/dev/null | sed 1q` by running
[$]0 [$]ac_configure_args"
+dnl We use a different name than CONFTEST just to help the maintainers
+dnl to make the difference between `conftest' which is the root of the
+dnl files used by configure, and `ac_cs_root' which is the root of the
+dnl files of config.status.
+# Root of the tmp file names. Use pid to allow concurrent executions.
+ac_cs_root=cs\$\$
+
+ac_given_srcdir=$srcdir
+ifdef([AC_PROVIDE_AC_PROG_INSTALL], [ac_given_INSTALL="$INSTALL"
+])dnl
+
+# Files that config.status was made for.
+AC_WRAP([config_files="]$1["]
+)
+ifdef([AC_LIST_HEADER], [AC_WRAP([config_headers="]AC_LIST_HEADER["])]
+)dnl
+
for ac_option
do
case "[\$]ac_option" in
echo "[\$]ac_cs_version"; exit 0 ;;
-help | --help | --hel | --he | --h)
echo "[\$]ac_cs_usage"; exit 0 ;;
- *) echo "[\$]ac_cs_usage"; exit 1 ;;
+ *) # Find out the files to process
+ for ac_file in [\$]config_files
+ do
+ case [\$]ac_file in
+ [\$]ac_option | [\$]ac_option:* )
+ CONFIG_FILES="[\$]CONFIG_FILES [\$]ac_file"
+ ac_option=
+ break ;;
+ esac
+ done
+ test -z "[\$]ac_option" && continue
+ for ac_file in [\$]config_headers
+ do
+ case [\$]ac_file in
+ [\$]ac_option | [\$]ac_option:* )
+ CONFIG_HEADERS="[\$]CONFIG_HEADERS [\$]ac_file"
+ ac_option=
+ break ;;
+ esac
+ done
+ test -z "[\$]ac_option" && continue
+ echo "$CONFIG_STATUS: invalid argument: [\$]ac_option"; exit 1
+ ;;
esac
done
-ac_given_srcdir=$srcdir
-ifdef([AC_PROVIDE_AC_PROG_INSTALL], [ac_given_INSTALL="$INSTALL"
-])dnl
-dnl We use a different name than CONFTEST just to help the maintainers
-dnl to make the difference between `conftest' which is the root of the
-dnl files used by configure, and `confstat' which is the root of the
-dnl files of config.status.
-# Allow concurrent executions.
-confstat=cft\$\$
EOF
cat >> $CONFIG_STATUS <<EOF
-dnl Remove all the CONFIG_FILES, and trap to remove the temp files. There
-dnl is no need to trap for the config files since they are built from `mv
-dnl tmp-file config-file', hence their update is atomic.
-: \${CONFIG_FILES="$1"}
-ifdef([AC_LIST_HEADER], [: \${CONFIG_HEADERS=AC_LIST_HEADER}
+# If there were arguments, don't assign a default value.
+if test \$[#] = 0; then
+ : \${CONFIG_FILES="\$config_files"}
+ifdef([AC_LIST_HEADER], [ : \${CONFIG_HEADERS="\$config_headers"}
])dnl
+fi
+
+# Remove all the CONFIG_FILES, and trap to remove the temp files.
+dnl There is no need to trap for the config files since they are built
+dnl from `mv tmp-file config-file', hence their update is atomic.
rm -fr \`echo "\$CONFIG_FILES" | sed "s/:@BKL@^ @BKR@*//g"\`
-trap 'rm -fr \$confstat*; exit 1' 1 2 15
+trap 'rm -fr \$ac_cs_root*; exit 1' 1 2 15
+
EOF
+
dnl The following three sections are in charge of their own here
dnl documenting into $CONFIG_STATUS.
AC_OUTPUT_FILES($1)
# If the first sed substitution is executed (which looks for macros that
# take arguments), then we branch to the cleanup section. Otherwise,
# look for a macro that doesn't take arguments.
-cat > $confstat.defs <<\EOF
+cat > $ac_cs_root.defs <<\EOF
changequote(<<, >>)dnl
s%^[ ]*<<#>>[ ]*define[ ][ ]*\([^ (][^ (]*([^)]*)\)[ ]*\(.*\)%-D\1=\2%g
t cleanup
# would break.
ac_LF_and_DOT="`echo; echo .`"
DEFS=`sed -f $conftest.defs confdefs.h | tr "$ac_LF_and_DOT" ' .'`
-rm -f $confstat.defs
+rm -f $ac_cs_root.defs
])
# Protect against being on the right side of a sed subst in config.status.
changequote(, )dnl
sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
- s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > \$confstat.subs <<\\CEOF
+ s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > \$ac_cs_root.subs <<\\CEOF
changequote([, ])dnl
dnl These here document variables are unquoted when configure runs
dnl but quoted when config.status runs, so variables are expanded once.
dnl Insert the sed substitutions of variables.
undivert(AC_DIVERSION_SED)dnl
CEOF
+
EOF
cat >> $CONFIG_STATUS <<\EOF
-
# Split the substitutions into bite-sized pieces for seds with
# small command number limits, like on Digital OSF/1 and HP-UX.
-ac_max_sed_lines=90 # Maximum number of lines to put in a sed script.
+dnl One cannot portably go further than 100 commands because of HP-UX.
+dnl Here, there are 2 cmd per line, and two cmd are added later.
+ac_max_sed_lines=48
ac_sed_frag=1 # Number of current file.
ac_beg=1 # First line for current file.
ac_end=$ac_max_sed_lines # Line after last line for current file.
ac_sed_cmds=""
while $ac_more_lines; do
if test $ac_beg -gt 1; then
- sed "1,${ac_beg}d; ${ac_end}q" $confstat.subs > $confstat.sfrag
+ sed "1,${ac_beg}d; ${ac_end}q" $ac_cs_root.subs > $ac_cs_root.sfrag
else
- sed "${ac_end}q" $confstat.subs > $confstat.sfrag
+ sed "${ac_end}q" $ac_cs_root.subs > $ac_cs_root.sfrag
fi
- if test ! -s $confstat.sfrag; then
+ if test ! -s $ac_cs_root.sfrag; then
ac_more_lines=false
- rm -f $confstat.sfrag
+ rm -f $ac_cs_root.sfrag
else
# The purpose of the label and of the branching condition is to
# speed up the sed processing (if there are no `@' at all, there
# is no need to browse any of the substitutions).
+ # These are the two extra sed commands mentioned above.
(echo ':t
-/@@BKL@a-zA-Z_@BKR@@BKL@a-zA-Z_0-9@BKR@*@/!b' && cat $confstat.sfrag) > $confstat.s$ac_sed_frag
+/@@BKL@a-zA-Z_@BKR@@BKL@a-zA-Z_0-9@BKR@*@/!b' && cat $ac_cs_root.sfrag) > $ac_cs_root.s$ac_sed_frag
if test -z "$ac_sed_cmds"; then
- ac_sed_cmds="sed -f $confstat.s$ac_sed_frag"
+ ac_sed_cmds="sed -f $ac_cs_root.s$ac_sed_frag"
else
- ac_sed_cmds="$ac_sed_cmds | sed -f $confstat.s$ac_sed_frag"
+ ac_sed_cmds="$ac_sed_cmds | sed -f $ac_cs_root.s$ac_sed_frag"
fi
ac_sed_frag=`expr $ac_sed_frag + 1`
ac_beg=$ac_end
ifdef([AC_PROVIDE_AC_PROG_INSTALL], [s%@INSTALL@%$INSTALL%;t t
])dnl
dnl The parens around the eval prevent an "illegal io" in Ultrix sh.
-" $ac_file_inputs | (eval "$ac_sed_cmds") > $confstat.out
+" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_cs_root.out
dnl This would break Makefile dependencies.
-dnl if cmp -s $ac_file $confstat.out 2>/dev/null; then
+dnl if cmp -s $ac_file $ac_cs_root.out 2>/dev/null; then
dnl echo "$ac_file is unchanged"
-dnl rm -f $confstat.out
+dnl rm -f $ac_cs_root.out
dnl else
dnl rm -f $ac_file
-dnl mv $confstat.out $ac_file
+dnl mv $ac_cs_root.out $ac_file
dnl fi
- mv $confstat.out $ac_file
+ mv $ac_cs_root.out $ac_file
fi; done
-rm -f $confstat.s*
+rm -f $ac_cs_root.s*
EOF
])dnl AC_OUTPUT_FILES
ac_eD='%g'
changequote([, ])dnl
-if test "${CONFIG_HEADERS+set}" != set; then
-EOF
-dnl Support passing AC_CONFIG_HEADER a value containing shell variables.
-cat >> $CONFIG_STATUS <<EOF
- CONFIG_HEADERS="$1"
-EOF
-cat >> $CONFIG_STATUS <<\EOF
-fi
for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
changequote(, )dnl
# Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
echo creating $ac_file
- rm -f $confstat.frag $confstat.in $confstat.out
+ rm -f $ac_cs_root.frag $ac_cs_root.in $ac_cs_root.out
ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
- cat $ac_file_inputs > $confstat.in
+ cat $ac_file_inputs > $ac_cs_root.in
EOF
rm -f conftest.vals
dnl Using a here document instead of a string reduces the quoting nightmare.
dnl Putting comments in sed scripts is not portable.
-cat > $confstat.hdr <<\EOF
+dnl One may be tempted to use the same trick to speed up the sed script
+dnl as for CONFIG_FILES (combinasion of :t and t t). Here we cannot,
+dnl because of the `#define' templates: we may enter in infinite loops
+dnl replacing `#define foo bar' by itself.
+dnl We ought to get rid of the #define templates.
+cat > $ac_cs_root.hdr <<\EOF
changequote(<<, >>)dnl
s/[\\&%]/\\&/g
s%[\\$`]%\\&%g
t cleanup
s%^[ ]*<<#>>[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\)$% ${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD}%gp
: cleanup
-s%ac_d%ac_u%gp
-s%ac_u%ac_e%gp
+s%ac_d%ac_e%gp
+s%ac_e%ac_u%gp
changequote([, ])dnl
EOF
# If some macros were called several times there might be several times
# the same #defines, which is useless. Nevertheless, we may not want to
# sort them, since we want the *last* AC_DEFINE to be honored.
-uniq confdefs.h | sed -n -f $confstat.hdr > conftest.vals
-rm -f $confstat.hdr
+uniq confdefs.h | sed -n -f $ac_cs_root.hdr > conftest.vals
+rm -f $ac_cs_root.hdr
# This sed command replaces #undef with comments. This is necessary, for
# example, in the case of _POSIX_SOURCE, which is predefined and required
changequote([, ])dnl
EOF
-# Break up conftest.vals because some shells have a limit on
-# the size of here documents, and old seds have small limits too.
-
rm -f conftest.tail
while :
do
ac_lines=`grep -c . conftest.vals`
# grep -c gives empty output for an empty file on some AIX systems.
if test -z "$ac_lines" || test "$ac_lines" -eq 0; then break; fi
- # Write a limited-size here document to $confstat.frag.
- echo ' cat > $confstat.frag <<CEOF' >> $CONFIG_STATUS
+ # Write a limited-size here document to $ac_cs_root.frag.
+ echo ' cat > $ac_cs_root.frag <<CEOF' >> $CONFIG_STATUS
+dnl A small speed up: don't consider the non `#undef' or `#define' lines.
+ echo '/^#[ ]*u*n*d*e*f*/!b' >> $CONFIG_STATUS
sed ${ac_max_here_lines}q conftest.vals >> $CONFIG_STATUS
echo 'CEOF
- sed -f $confstat.frag $confstat.in > $confstat.out
- rm -f $confstat.in
- mv $confstat.out $confstat.in
+ sed -f $ac_cs_root.frag $ac_cs_root.in > $ac_cs_root.out
+ rm -f $ac_cs_root.in
+ mv $ac_cs_root.out $ac_cs_root.in
' >> $CONFIG_STATUS
sed 1,${ac_max_here_lines}d conftest.vals > conftest.tail
rm -f conftest.vals
dnl Now back to your regularly scheduled config.status.
cat >> $CONFIG_STATUS <<\EOF
- rm -f $confstat.frag $confstat.h
- echo "/* $ac_file. Generated automatically by configure. */" > $confstat.h
- cat $confstat.in >> $confstat.h
- rm -f $confstat.in
- if cmp -s $ac_file $confstat.h 2>/dev/null; then
+ rm -f $ac_cs_root.frag $ac_cs_root.h
+ echo "/* $ac_file. Generated automatically by configure. */" > $ac_cs_root.h
+ cat $ac_cs_root.in >> $ac_cs_root.h
+ rm -f $ac_cs_root.in
+ if cmp -s $ac_file $ac_cs_root.h 2>/dev/null; then
echo "$ac_file is unchanged"
- rm -f $confstat.h
+ rm -f $ac_cs_root.h
else
# Remove last slash and all that follows it. Not all systems have dirname.
changequote(, )dnl
test ! -d "$ac_dir" && mkdir "$ac_dir"
fi
rm -f $ac_file
- mv $confstat.h $ac_file
+ mv $ac_cs_root.h $ac_file
fi
fi; done
EOF
fi
])
-dnl AC_PROG_CC takes an optional first argument which, if specified,
-dnl must be a space separated list of C compilers to search for. This
-dnl just gives the user an opportunity to specify an alternative search
-dnl list for the C compiler.
+dnl AC_PROG_CC([COMPILER ...])
+dnl --------------------------
+dnl COMPILER ... is a space separated list of C compilers to search for.
+dnl This just gives the user an opportunity to specify an alternative
+dnl search list for the C compiler.
AC_DEFUN(AC_PROG_CC,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_ARG_VAR([CFLAGS], [Extra flags for the C compiler])
AC_DEFUN(AC_PROG_AWK,
[AC_CHECK_PROGS(AWK, mawk gawk nawk awk, )])
+dnl AC_PROG_SED
+dnl -----------
+dnl Check whether the first sed in the path supports long scripts.
+dnl Set the variable $ac_cv_prog_sed_max_cmd to the maximum number
+dnl of commands to put in a sed script, `infinite' meaning a priori
+dnl infinite.
+AC_DEFUN([AC_PROG_SED],
+[AC_CACHE_CHECK([for max sed script length], ac_cv_prog_sed_max_cmd,
+[echo >conftest.s "\
+s/0/1/;s/1/2/;s/2/3/;s/3/4/;s/4/5/;s/5/6/;s/6/7/;s/7/8/;s/8/9/;s/9/0/;s/9/O/;"
+dnl 2^4 = 16 lines of 10 commands.
+for ac_cnt in 0 1 2 3
+do
+ cat conftest.s conftest.s >conftest.s1
+ mv conftest.s1 conftest.s
+done
+if test "`echo 0 | sed -f conftest.s`" != 0; then
+dnl HP-UX sed dies with scripts longer than 100 commands.
+ ac_cv_prog_sed_max_cmd=100
+else
+ ac_cv_prog_sed_max_cmd=infinite
+fi
+])dnl
+])
+
+dnl AC_PROG_BINSH
+dnl -------------
+dnl Check the maximum length of an here document.
+dnl FIXME: Is this test really reliable?
+AC_DEFUN([AC_PROG_BINSH],
+[AC_CACHE_CHECK([for max here document length], ac_cv_prog_binsh_max_heredoc,
+[echo >conftest.s1 "\
+ac_test='This is a sample string to test here documents.'"
+dnl 2^8 = 256 lines
+for ac_cnt in 0 1 2 3 4 5 6 7
+do
+ cat conftest.s1 conftest.s1 >conftest.sh
+ mv conftest.sh conftest.s1
+done
+echo 'cat >conftest.s1 <<CEOF' >conftest.sh
+cat conftest.s1 >>conftest.sh
+echo 'echo "Success"' >>conftest.sh
+echo 'CEOF' >>conftest.sh
+$SHELL ./conftest.sh
+if test "`$SHELL ./conftest.s1`" != Success; then
+dnl Some people say to limit oneself to 12, which seems incredibly small.
+ ac_cv_prog_binsh_max_heredoc=12
+else
+ ac_cv_prog_binsh_max_heredoc=infinite
+fi
+])dnl
+])dnl AC_PROG_BINSH
+
AC_DEFUN(AC_PROG_YACC,
[AC_CHECK_PROGS(YACC, 'bison -y' byacc, yacc)])
+dnl AC_PROG_CPP
+dnl -----------
AC_DEFUN(AC_PROG_CPP,
[AC_MSG_CHECKING(how to run the C preprocessor)
# On Suns, sometimes $CPP names a directory.
[if test "$GCC" = yes; then
ac_cv_c_long_double=yes
else
-AC_TRY_COMPILE(,
-[/* The Stardent Vistra knows sizeof(long double), but does not support it. */
+AC_TRY_RUN([int main() {
+/* The Stardent Vistra knows sizeof(long double), but does not support it. */
long double foo = 0.0;
/* On Ultrix 4.3 cc, long double is 4 and double is 8. */
-switch (0) case 0: case (sizeof(long double) >= sizeof(double)):;],
+exit(sizeof(long double) < sizeof(double)); }],
ac_cv_c_long_double=yes, ac_cv_c_long_double=no)
fi])
if test $ac_cv_c_long_double = yes; then
projects / thirdparty / autoconf.git / commitdiff
