1051 lines
32 KiB
Plaintext
1051 lines
32 KiB
Plaintext
# This file is part of Autoconf. -*- Autoconf -*-
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# Macros that test for specific features.
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# Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
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# Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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# 02111-1307, USA.
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#
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# As a special exception, the Free Software Foundation gives unlimited
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# permission to copy, distribute and modify the configure scripts that
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# are the output of Autoconf. You need not follow the terms of the GNU
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# General Public License when using or distributing such scripts, even
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# though portions of the text of Autoconf appear in them. The GNU
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# General Public License (GPL) does govern all other use of the material
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# that constitutes the Autoconf program.
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#
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# Certain portions of the Autoconf source text are designed to be copied
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# (in certain cases, depending on the input) into the output of
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# Autoconf. We call these the "data" portions. The rest of the Autoconf
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# source text consists of comments plus executable code that decides which
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# of the data portions to output in any given case. We call these
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# comments and executable code the "non-data" portions. Autoconf never
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# copies any of the non-data portions into its output.
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#
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# This special exception to the GPL applies to versions of Autoconf
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# released by the Free Software Foundation. When you make and
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# distribute a modified version of Autoconf, you may extend this special
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# exception to the GPL to apply to your modified version as well, *unless*
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# your modified version has the potential to copy into its output some
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# of the text that was the non-data portion of the version that you started
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# with. (In other words, unless your change moves or copies text from
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# the non-data portions to the data portions.) If your modification has
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# such potential, you must delete any notice of this special exception
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# to the GPL from your modified version.
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#
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# Written by David MacKenzie, with help from
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# Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
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# Roland McGrath, Noah Friedman, david d zuhn, and many others.
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## --------------------- ##
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## Checks for programs. ##
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## --------------------- ##
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# _AC_PROG_ECHO
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# -------------
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# Check whether to use -n, \c, or newline-tab to separate
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# checking messages from result messages.
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# Don't try to cache, since the results of this macro are needed to
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# display the checking message. In addition, caching something used once
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# has little interest.
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# Idea borrowed from dist 3.0. Use `*c*,', not `*c,' because if `\c'
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# failed there is also a new-line to match.
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m4_define([_AC_PROG_ECHO],
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[case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
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*c*,-n*) ECHO_N= ECHO_C='
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' ECHO_T=' ' ;;
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*c*,* ) ECHO_N=-n ECHO_C= ECHO_T= ;;
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*) ECHO_N= ECHO_C='\c' ECHO_T= ;;
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esac
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AC_SUBST(ECHO_C)dnl
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AC_SUBST(ECHO_N)dnl
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AC_SUBST(ECHO_T)dnl
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])# _AC_PROG_ECHO
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# AC_PROG_MAKE_SET
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# ----------------
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# Define SET_MAKE to set ${MAKE} if make doesn't.
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AC_DEFUN([AC_PROG_MAKE_SET],
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[AC_MSG_CHECKING([whether ${MAKE-make} sets \${MAKE}])
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set dummy ${MAKE-make}; ac_make=`echo "$[2]" | sed 'y,./+-,__p_,'`
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AC_CACHE_VAL(ac_cv_prog_make_${ac_make}_set,
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[cat >conftest.make <<\EOF
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all:
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@echo 'ac_maketemp="${MAKE}"'
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EOF
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# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
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eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=`
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if test -n "$ac_maketemp"; then
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eval ac_cv_prog_make_${ac_make}_set=yes
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else
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eval ac_cv_prog_make_${ac_make}_set=no
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fi
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rm -f conftest.make])dnl
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if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
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AC_MSG_RESULT([yes])
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SET_MAKE=
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else
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AC_MSG_RESULT([no])
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SET_MAKE="MAKE=${MAKE-make}"
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fi
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AC_SUBST([SET_MAKE])dnl
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])# AC_PROG_MAKE_SET
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# AC_PROG_RANLIB
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# --------------
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AC_DEFUN([AC_PROG_RANLIB],
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[AC_CHECK_TOOL(RANLIB, ranlib, :)])
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# Check for mawk first since it's generally faster.
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AC_DEFUN([AC_PROG_AWK],
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[AC_CHECK_PROGS(AWK, mawk gawk nawk awk, )])
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# AC_PROG_YACC
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# ------------
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AC_DEFUN([AC_PROG_YACC],
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[AC_CHECK_PROGS(YACC, 'bison -y' byacc, yacc)])
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# AC_PROG_LEX
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# -----------
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# Look for flex or lex. Set its associated library to LEXLIB.
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# Check if lex declares yytext as a char * by default, not a char[].
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AC_DEFUN_ONCE([AC_PROG_LEX],
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[AC_CHECK_PROGS(LEX, flex lex, :)
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if test -z "$LEXLIB"
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then
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AC_CHECK_LIB(fl, yywrap, LEXLIB="-lfl",
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[AC_CHECK_LIB(l, yywrap, LEXLIB="-ll")])
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fi
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AC_SUBST(LEXLIB)
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if test "x$LEX" != "x:"; then
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_AC_DECL_YYTEXT
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fi])
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# _AC_DECL_YYTEXT
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# ---------------
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# Check if lex declares yytext as a char * by default, not a char[].
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m4_define([_AC_DECL_YYTEXT],
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[AC_CACHE_CHECK(lex output file root, ac_cv_prog_lex_root,
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[# The minimal lex program is just a single line: %%. But some broken lexes
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# (Solaris, I think it was) want two %% lines, so accommodate them.
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echo '%%
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%%' | $LEX
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if test -f lex.yy.c; then
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ac_cv_prog_lex_root=lex.yy
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elif test -f lexyy.c; then
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ac_cv_prog_lex_root=lexyy
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else
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AC_MSG_ERROR([cannot find output from $LEX; giving up])
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fi])
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LEX_OUTPUT_ROOT=$ac_cv_prog_lex_root
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AC_SUBST(LEX_OUTPUT_ROOT)dnl
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AC_CACHE_CHECK(whether yytext is a pointer, ac_cv_prog_lex_yytext_pointer,
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[# POSIX says lex can declare yytext either as a pointer or an array; the
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# default is implementation-dependent. Figure out which it is, since
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# not all implementations provide the %pointer and %array declarations.
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ac_cv_prog_lex_yytext_pointer=no
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echo 'extern char *yytext;' >>$LEX_OUTPUT_ROOT.c
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ac_save_LIBS=$LIBS
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LIBS="$LIBS $LEXLIB"
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AC_LINK_IFELSE([`cat $LEX_OUTPUT_ROOT.c`], ac_cv_prog_lex_yytext_pointer=yes)
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LIBS=$ac_save_LIBS
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rm -f "${LEX_OUTPUT_ROOT}.c"
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])
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dnl
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if test $ac_cv_prog_lex_yytext_pointer = yes; then
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AC_DEFINE(YYTEXT_POINTER, 1,
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[Define if `lex' declares `yytext' as a `char *' by default,
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not a `char[]'.])
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fi
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])# _AC_DECL_YYTEXT
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# Require AC_PROG_LEX in case some people were just calling this macro.
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AU_DEFUN([AC_DECL_YYTEXT],
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[AC_PROG_LEX])
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# AC_PROG_INSTALL
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# ---------------
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AC_DEFUN([AC_PROG_INSTALL],
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[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
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# Find a good install program. We prefer a C program (faster),
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# so one script is as good as another. But avoid the broken or
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# incompatible versions:
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# SysV /etc/install, /usr/sbin/install
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# SunOS /usr/etc/install
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# IRIX /sbin/install
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# AIX /bin/install
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# AmigaOS /C/install, which installs bootblocks on floppy discs
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# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
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# AFS /usr/afsws/bin/install, which mishandles nonexistent args
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# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
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# ./install, which can be erroneously created by make from ./install.sh.
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AC_MSG_CHECKING([for a BSD compatible install])
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if test -z "$INSTALL"; then
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AC_CACHE_VAL(ac_cv_path_install,
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[ ac_save_IFS=$IFS; IFS=$ac_path_separator
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for ac_dir in $PATH; do
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IFS=$ac_save_IFS
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# Account for people who put trailing slashes in PATH elements.
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case $ac_dir/ in
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/ | ./ | .// | /[cC]/* \
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| /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* \
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| /usr/ucb/* ) ;;
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*)
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# OSF1 and SCO ODT 3.0 have their own names for install.
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# Don't use installbsd from OSF since it installs stuff as root
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# by default.
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for ac_prog in ginstall scoinst install; do
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if AS_EXECUTABLE_P(["$ac_dir/$ac_prog"]); then
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if test $ac_prog = install &&
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grep dspmsg "$ac_dir/$ac_prog" >/dev/null 2>&1; then
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# AIX install. It has an incompatible calling convention.
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:
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elif test $ac_prog = install &&
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grep pwplus "$ac_dir/$ac_prog" >/dev/null 2>&1; then
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# program-specific install script used by HP pwplus--don't use.
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:
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else
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ac_cv_path_install="$ac_dir/$ac_prog -c"
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break 2
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fi
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fi
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done
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;;
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esac
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done
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])dnl
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if test "${ac_cv_path_install+set}" = set; then
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INSTALL=$ac_cv_path_install
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else
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# As a last resort, use the slow shell script. We don't cache a
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# path for INSTALL within a source directory, because that will
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# break other packages using the cache if that directory is
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# removed, or if the path is relative.
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INSTALL=$ac_install_sh
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fi
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fi
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dnl We do special magic for INSTALL instead of AC_SUBST, to get
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dnl relative paths right.
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AC_MSG_RESULT([$INSTALL])
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# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
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# It thinks the first close brace ends the variable substitution.
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test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
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AC_SUBST(INSTALL_PROGRAM)dnl
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test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
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AC_SUBST(INSTALL_SCRIPT)dnl
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test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
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AC_SUBST(INSTALL_DATA)dnl
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])# AC_PROG_INSTALL
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# AC_PROG_LN_S
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# ------------
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AC_DEFUN([AC_PROG_LN_S],
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[AC_MSG_CHECKING([whether ln -s works])
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AC_SUBST([LN_S], [$as_ln_s])dnl
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if test "$LN_S" = "ln -s"; then
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no, using $LN_S])
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fi
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])# AC_PROG_LN_S
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# AC_RSH
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# ------
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# I don't know what it used to do, but it no longer does.
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AU_DEFUN([AC_RSH],
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[AC_DIAGNOSE([obsolete], [$0: is no longer supported.
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Remove this warning when you adjust the code.])])
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## ------------------------- ##
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## Checks for declarations. ##
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## ------------------------- ##
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# AC_DECL_SYS_SIGLIST
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# -------------------
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AC_DEFUN([AC_DECL_SYS_SIGLIST],
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[AC_CACHE_CHECK([for sys_siglist declaration in signal.h or unistd.h],
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ac_cv_decl_sys_siglist,
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([#include <sys/types.h>
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#include <signal.h>
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/* NetBSD declares sys_siglist in unistd.h. */
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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], [char *msg = *(sys_siglist + 1);])],
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[ac_cv_decl_sys_siglist=yes],
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[ac_cv_decl_sys_siglist=no])])
|
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if test $ac_cv_decl_sys_siglist = yes; then
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AC_DEFINE(SYS_SIGLIST_DECLARED, 1,
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[Define if `sys_siglist' is declared by <signal.h> or <unistd.h>.])
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fi
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])# AC_DECL_SYS_SIGLIST
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## -------------------------------------- ##
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## Checks for operating system services. ##
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## -------------------------------------- ##
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# AC_SYS_INTERPRETER
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# ------------------
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AC_DEFUN([AC_SYS_INTERPRETER],
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[AC_CACHE_CHECK(whether @%:@! works in shell scripts, ac_cv_sys_interpreter,
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[echo '#! /bin/cat
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exit 69
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' >conftest
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chmod u+x conftest
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(SHELL=/bin/sh; export SHELL; ./conftest >/dev/null)
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if test $? -ne 69; then
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ac_cv_sys_interpreter=yes
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else
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ac_cv_sys_interpreter=no
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fi
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rm -f conftest])
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interpval=$ac_cv_sys_interpreter
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])
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AU_DEFUN([AC_HAVE_POUNDBANG],
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[AC_SYS_INTERPRETER
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AC_DIAGNOSE([obsolete],
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[$0: Remove this warning when you adjust your code to use
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`AC_SYS_INTERPRETER'.])])
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|
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AU_DEFUN([AC_ARG_ARRAY],
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[AC_DIAGNOSE([obsolete],
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[$0: no longer implemented: don't do unportable things
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with arguments. Remove this warning when you adjust your code.])])
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# _AC_SYS_LARGEFILE_TEST_INCLUDES
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# -------------------------------
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m4_define([_AC_SYS_LARGEFILE_TEST_INCLUDES],
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[@%:@include <sys/types.h>
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/* Check that off_t can represent 2**63 - 1 correctly.
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We can't simply define LARGE_OFF_T to be 9223372036854775807,
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since some C++ compilers masquerading as C compilers
|
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incorrectly reject 9223372036854775807. */
|
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@%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
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int off_t_is_large[[(LARGE_OFF_T % 2147483629 == 721
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&& LARGE_OFF_T % 2147483647 == 1)
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? 1 : -1]];[]dnl
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])
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# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE,
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# CACHE-VAR,
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|
# DESCRIPTION,
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# [INCLUDES], [FUNCTION-BODY])
|
|
# ----------------------------------------------------------
|
|
m4_define([_AC_SYS_LARGEFILE_MACRO_VALUE],
|
|
[AC_CACHE_CHECK([for $1 value needed for large files], [$3],
|
|
[while :; do
|
|
$3=no
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$5], [$6])],
|
|
[break])
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([@%:@define $1 $2
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|
$5], [$6])],
|
|
[$3=$2; break])
|
|
break
|
|
done])
|
|
if test "$$3" != no; then
|
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AC_DEFINE_UNQUOTED([$1], [$$3], [$4])
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fi
|
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rm -f conftest*[]dnl
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|
])# _AC_SYS_LARGEFILE_MACRO_VALUE
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# AC_SYS_LARGEFILE
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|
# ----------------
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|
# By default, many hosts won't let programs access large files;
|
|
# one must use special compiler options to get large-file access to work.
|
|
# For more details about this brain damage please see:
|
|
# http://www.sas.com/standards/large.file/x_open.20Mar96.html
|
|
AC_DEFUN([AC_SYS_LARGEFILE],
|
|
[AC_ARG_ENABLE(largefile,
|
|
[ --disable-largefile omit support for large files])
|
|
if test "$enable_largefile" != no; then
|
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|
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AC_CACHE_CHECK([for special C compiler options needed for large files],
|
|
ac_cv_sys_largefile_CC,
|
|
[ac_cv_sys_largefile_CC=no
|
|
if test "$GCC" != yes; then
|
|
ac_save_CC=$CC
|
|
while :; do
|
|
# IRIX 6.2 and later do not support large files by default,
|
|
# so use the C compiler's -n32 option if that helps.
|
|
AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])])
|
|
AC_COMPILE_IFELSE([], [break])
|
|
CC="$CC -n32"
|
|
AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break])
|
|
break
|
|
done
|
|
CC=$ac_save_CC
|
|
rm -f conftest.$ac_ext
|
|
fi])
|
|
if test "$ac_cv_sys_largefile_CC" != no; then
|
|
CC=$CC$ac_cv_sys_largefile_CC
|
|
fi
|
|
|
|
_AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64,
|
|
ac_cv_sys_file_offset_bits,
|
|
[Number of bits in a file offset, on hosts where this is settable.],
|
|
[_AC_SYS_LARGEFILE_TEST_INCLUDES])
|
|
_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1,
|
|
ac_cv_sys_large_files,
|
|
[Define for large files, on AIX-style hosts.],
|
|
[_AC_SYS_LARGEFILE_TEST_INCLUDES])
|
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fi
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])# AC_SYS_LARGEFILE
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# AC_SYS_LONG_FILE_NAMES
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|
# ----------------------
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|
# Security: use a temporary directory as the most portable way of
|
|
# creating files in /tmp securely. Removing them leaves a race
|
|
# condition, set -C is not portably guaranteed to use O_EXCL, so still
|
|
# leaves a race, and not all systems have the `mktemp' utility. We
|
|
# still test for existence first in case of broken systems where the
|
|
# mkdir succeeds even when the directory exists. Broken systems may
|
|
# retain a race, but they probably have other security problems
|
|
# anyway; this should be secure on well-behaved systems. In any case,
|
|
# use of `mktemp' is probably inappropriate here since it would fail in
|
|
# attempting to create different file names differing after the 14th
|
|
# character on file systems without long file names.
|
|
AC_DEFUN([AC_SYS_LONG_FILE_NAMES],
|
|
[AC_CACHE_CHECK(for long file names, ac_cv_sys_long_file_names,
|
|
[ac_cv_sys_long_file_names=yes
|
|
# Test for long file names in all the places we know might matter:
|
|
# . the current directory, where building will happen
|
|
# $prefix/lib where we will be installing things
|
|
# $exec_prefix/lib likewise
|
|
# eval it to expand exec_prefix.
|
|
# $TMPDIR if set, where it might want to write temporary files
|
|
# if $TMPDIR is not set:
|
|
# /tmp where it might want to write temporary files
|
|
# /var/tmp likewise
|
|
# /usr/tmp likewise
|
|
if test -n "$TMPDIR" && test -d "$TMPDIR" && test -w "$TMPDIR"; then
|
|
ac_tmpdirs=$TMPDIR
|
|
else
|
|
ac_tmpdirs='/tmp /var/tmp /usr/tmp'
|
|
fi
|
|
for ac_dir in . $ac_tmpdirs `eval echo $prefix/lib $exec_prefix/lib` ; do
|
|
test -d $ac_dir || continue
|
|
test -w $ac_dir || continue # It is less confusing to not echo anything here.
|
|
ac_xdir=$ac_dir/cf$$
|
|
(umask 077 && mkdir $ac_xdir 2>/dev/null) || continue
|
|
ac_tf1=$ac_xdir/conftest9012345
|
|
ac_tf2=$ac_xdir/conftest9012346
|
|
(echo 1 >$ac_tf1) 2>/dev/null
|
|
(echo 2 >$ac_tf2) 2>/dev/null
|
|
ac_val=`cat $ac_tf1 2>/dev/null`
|
|
if test ! -f $ac_tf1 || test "$ac_val" != 1; then
|
|
ac_cv_sys_long_file_names=no
|
|
rm -rf $ac_xdir 2>/dev/null
|
|
break
|
|
fi
|
|
rm -rf $ac_xdir 2>/dev/null
|
|
done])
|
|
if test $ac_cv_sys_long_file_names = yes; then
|
|
AC_DEFINE(HAVE_LONG_FILE_NAMES, 1,
|
|
[Define if you support file names longer than 14 characters.])
|
|
fi
|
|
])
|
|
|
|
|
|
# AC_SYS_RESTARTABLE_SYSCALLS
|
|
# ---------------------------
|
|
# If the system automatically restarts a system call that is
|
|
# interrupted by a signal, define `HAVE_RESTARTABLE_SYSCALLS'.
|
|
AC_DEFUN([AC_SYS_RESTARTABLE_SYSCALLS],
|
|
[AC_DIAGNOSE([obsolete],
|
|
[$0: System call restartability is now typically set at runtime.
|
|
Remove this `AC_SYS_RESTARTABLE_SYSCALLS'
|
|
and adjust your code to use `sigaction' with `SA_RESTART' instead.])dnl
|
|
AC_REQUIRE([AC_HEADER_SYS_WAIT])dnl
|
|
AC_CHECK_HEADERS(unistd.h)
|
|
AC_CACHE_CHECK(for restartable system calls, ac_cv_sys_restartable_syscalls,
|
|
[AC_RUN_IFELSE([AC_LANG_SOURCE(
|
|
[/* Exit 0 (true) if wait returns something other than -1,
|
|
i.e. the pid of the child, which means that wait was restarted
|
|
after getting the signal. */
|
|
|
|
#include <sys/types.h>
|
|
#include <signal.h>
|
|
#if HAVE_UNISTD_H
|
|
# include <unistd.h>
|
|
#endif
|
|
#if HAVE_SYS_WAIT_H
|
|
# include <sys/wait.h>
|
|
#endif
|
|
|
|
/* Some platforms explicitly require an extern "C" signal handler
|
|
when using C++. */
|
|
#ifdef __cplusplus
|
|
extern "C" void ucatch (int dummy) { }
|
|
#else
|
|
void ucatch (dummy) int dummy; { }
|
|
#endif
|
|
|
|
int
|
|
main ()
|
|
{
|
|
int i = fork (), status;
|
|
|
|
if (i == 0)
|
|
{
|
|
sleep (3);
|
|
kill (getppid (), SIGINT);
|
|
sleep (3);
|
|
exit (0);
|
|
}
|
|
|
|
signal (SIGINT, ucatch);
|
|
|
|
status = wait (&i);
|
|
if (status == -1)
|
|
wait (&i);
|
|
|
|
exit (status == -1);
|
|
}])],
|
|
[ac_cv_sys_restartable_syscalls=yes],
|
|
[ac_cv_sys_restartable_syscalls=no])])
|
|
if test $ac_cv_sys_restartable_syscalls = yes; then
|
|
AC_DEFINE(HAVE_RESTARTABLE_SYSCALLS, 1,
|
|
[Define if system calls automatically restart after interruption
|
|
by a signal.])
|
|
fi
|
|
])# AC_SYS_RESTARTABLE_SYSCALLS
|
|
|
|
|
|
# AC_SYS_POSIX_TERMIOS
|
|
# --------------------
|
|
AC_DEFUN([AC_SYS_POSIX_TERMIOS],
|
|
[AC_CACHE_CHECK([POSIX termios], ac_cv_sys_posix_termios,
|
|
[AC_TRY_LINK([#include <sys/types.h>
|
|
#include <unistd.h>
|
|
@%:@include <termios.h>],
|
|
[/* SunOS 4.0.3 has termios.h but not the library calls. */
|
|
tcgetattr(0, 0);],
|
|
ac_cv_sys_posix_termios=yes,
|
|
ac_cv_sys_posix_termios=no)])
|
|
])# AC_SYS_POSIX_TERMIOS
|
|
|
|
|
|
|
|
## --------------------- ##
|
|
## Checks for X window. ##
|
|
## --------------------- ##
|
|
|
|
|
|
# _AC_PATH_X_XMKMF
|
|
# ----------------
|
|
# Internal subroutine of _AC_PATH_X.
|
|
# Set ac_x_includes and/or ac_x_libraries.
|
|
m4_define([_AC_PATH_X_XMKMF],
|
|
[rm -fr conftest.dir
|
|
if mkdir conftest.dir; then
|
|
cd conftest.dir
|
|
# Make sure to not put "make" in the Imakefile rules, since we grep it out.
|
|
cat >Imakefile <<'EOF'
|
|
acfindx:
|
|
@echo 'ac_im_incroot="${INCROOT}"; ac_im_usrlibdir="${USRLIBDIR}"; ac_im_libdir="${LIBDIR}"'
|
|
EOF
|
|
if (xmkmf) >/dev/null 2>/dev/null && test -f Makefile; then
|
|
# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
|
|
eval `${MAKE-make} acfindx 2>/dev/null | grep -v make`
|
|
# Open Windows xmkmf reportedly sets LIBDIR instead of USRLIBDIR.
|
|
for ac_extension in a so sl; do
|
|
if test ! -f $ac_im_usrlibdir/libX11.$ac_extension &&
|
|
test -f $ac_im_libdir/libX11.$ac_extension; then
|
|
ac_im_usrlibdir=$ac_im_libdir; break
|
|
fi
|
|
done
|
|
# Screen out bogus values from the imake configuration. They are
|
|
# bogus both because they are the default anyway, and because
|
|
# using them would break gcc on systems where it needs fixed includes.
|
|
case $ac_im_incroot in
|
|
/usr/include) ;;
|
|
*) test -f "$ac_im_incroot/X11/Xos.h" && ac_x_includes=$ac_im_incroot;;
|
|
esac
|
|
case $ac_im_usrlibdir in
|
|
/usr/lib | /lib) ;;
|
|
*) test -d "$ac_im_usrlibdir" && ac_x_libraries=$ac_im_usrlibdir ;;
|
|
esac
|
|
fi
|
|
cd ..
|
|
rm -fr conftest.dir
|
|
fi
|
|
])# _AC_PATH_X_XMKMF
|
|
|
|
|
|
# _AC_PATH_X_DIRECT
|
|
# -----------------
|
|
# Internal subroutine of _AC_PATH_X.
|
|
# Set ac_x_includes and/or ac_x_libraries.
|
|
m4_define([_AC_PATH_X_DIRECT],
|
|
[# Standard set of common directories for X headers.
|
|
# Check X11 before X11Rn because it is often a symlink to the current release.
|
|
ac_x_header_dirs='
|
|
/usr/X11/include
|
|
/usr/X11R6/include
|
|
/usr/X11R5/include
|
|
/usr/X11R4/include
|
|
|
|
/usr/include/X11
|
|
/usr/include/X11R6
|
|
/usr/include/X11R5
|
|
/usr/include/X11R4
|
|
|
|
/usr/local/X11/include
|
|
/usr/local/X11R6/include
|
|
/usr/local/X11R5/include
|
|
/usr/local/X11R4/include
|
|
|
|
/usr/local/include/X11
|
|
/usr/local/include/X11R6
|
|
/usr/local/include/X11R5
|
|
/usr/local/include/X11R4
|
|
|
|
/usr/X386/include
|
|
/usr/x386/include
|
|
/usr/XFree86/include/X11
|
|
|
|
/usr/include
|
|
/usr/local/include
|
|
/usr/unsupported/include
|
|
/usr/athena/include
|
|
/usr/local/x11r5/include
|
|
/usr/lpp/Xamples/include
|
|
|
|
/usr/openwin/include
|
|
/usr/openwin/share/include'
|
|
|
|
if test "$ac_x_includes" = no; then
|
|
# Guess where to find include files, by looking for Intrinsic.h.
|
|
# First, try using that file with no special directory specified.
|
|
AC_PREPROC_IFELSE([AC_LANG_SOURCE([@%:@include <X11/Intrinsic.h>])],
|
|
[# We can compile using X headers with no special include directory.
|
|
ac_x_includes=],
|
|
[for ac_dir in $ac_x_header_dirs; do
|
|
if test -r "$ac_dir/X11/Intrinsic.h"; then
|
|
ac_x_includes=$ac_dir
|
|
break
|
|
fi
|
|
done])
|
|
fi # $ac_x_includes = no
|
|
|
|
if test "$ac_x_libraries" = no; then
|
|
# Check for the libraries.
|
|
# See if we find them without any special options.
|
|
# Don't add to $LIBS permanently.
|
|
ac_save_LIBS=$LIBS
|
|
LIBS="-lXt $LIBS"
|
|
AC_TRY_LINK([@%:@include <X11/Intrinsic.h>], [XtMalloc (0)],
|
|
[LIBS=$ac_save_LIBS
|
|
# We can link X programs with no special library path.
|
|
ac_x_libraries=],
|
|
[LIBS=$ac_save_LIBS
|
|
for ac_dir in `echo "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
|
|
do
|
|
# Don't even attempt the hair of trying to link an X program!
|
|
for ac_extension in a so sl; do
|
|
if test -r $ac_dir/libXt.$ac_extension; then
|
|
ac_x_libraries=$ac_dir
|
|
break 2
|
|
fi
|
|
done
|
|
done])
|
|
fi # $ac_x_libraries = no
|
|
])# _AC_PATH_X_DIRECT
|
|
|
|
|
|
# _AC_PATH_X
|
|
# ----------
|
|
# Compute ac_cv_have_x.
|
|
AC_DEFUN([_AC_PATH_X],
|
|
[AC_CACHE_VAL(ac_cv_have_x,
|
|
[# One or both of the vars are not set, and there is no cached value.
|
|
ac_x_includes=no ac_x_libraries=no
|
|
_AC_PATH_X_XMKMF
|
|
_AC_PATH_X_DIRECT
|
|
if test "$ac_x_includes" = no || test "$ac_x_libraries" = no; then
|
|
# Didn't find X anywhere. Cache the known absence of X.
|
|
ac_cv_have_x="have_x=no"
|
|
else
|
|
# Record where we found X for the cache.
|
|
ac_cv_have_x="have_x=yes \
|
|
ac_x_includes=$ac_x_includes ac_x_libraries=$ac_x_libraries"
|
|
fi])dnl
|
|
])
|
|
|
|
|
|
# AC_PATH_X
|
|
# ---------
|
|
# If we find X, set shell vars x_includes and x_libraries to the
|
|
# paths, otherwise set no_x=yes.
|
|
# Uses ac_ vars as temps to allow command line to override cache and checks.
|
|
# --without-x overrides everything else, but does not touch the cache.
|
|
AC_DEFUN([AC_PATH_X],
|
|
[dnl Document the X abnormal options inherited from history.
|
|
m4_divert_once([HELP_BEGIN], [
|
|
X features:
|
|
--x-includes=DIR X include files are in DIR
|
|
--x-libraries=DIR X library files are in DIR])dnl
|
|
AC_MSG_CHECKING([for X])
|
|
|
|
AC_ARG_WITH(x, [ --with-x use the X Window System])
|
|
# $have_x is `yes', `no', `disabled', or empty when we do not yet know.
|
|
if test "x$with_x" = xno; then
|
|
# The user explicitly disabled X.
|
|
have_x=disabled
|
|
else
|
|
if test "x$x_includes" != xNONE && test "x$x_libraries" != xNONE; then
|
|
# Both variables are already set.
|
|
have_x=yes
|
|
else
|
|
_AC_PATH_X
|
|
fi
|
|
eval "$ac_cv_have_x"
|
|
fi # $with_x != no
|
|
|
|
if test "$have_x" != yes; then
|
|
AC_MSG_RESULT([$have_x])
|
|
no_x=yes
|
|
else
|
|
# If each of the values was on the command line, it overrides each guess.
|
|
test "x$x_includes" = xNONE && x_includes=$ac_x_includes
|
|
test "x$x_libraries" = xNONE && x_libraries=$ac_x_libraries
|
|
# Update the cache value to reflect the command line values.
|
|
ac_cv_have_x="have_x=yes \
|
|
ac_x_includes=$x_includes ac_x_libraries=$x_libraries"
|
|
AC_MSG_RESULT([libraries $x_libraries, headers $x_includes])
|
|
fi
|
|
])# AC_PATH_X
|
|
|
|
|
|
|
|
# AC_PATH_XTRA
|
|
# ------------
|
|
# Find additional X libraries, magic flags, etc.
|
|
AC_DEFUN([AC_PATH_XTRA],
|
|
[AC_REQUIRE([AC_PATH_X])dnl
|
|
if test "$no_x" = yes; then
|
|
# Not all programs may use this symbol, but it does not hurt to define it.
|
|
AC_DEFINE([X_DISPLAY_MISSING], 1,
|
|
[Define if the X Window System is missing or not being used.])
|
|
X_CFLAGS= X_PRE_LIBS= X_LIBS= X_EXTRA_LIBS=
|
|
else
|
|
if test -n "$x_includes"; then
|
|
X_CFLAGS="$X_CFLAGS -I$x_includes"
|
|
fi
|
|
|
|
# It would also be nice to do this for all -L options, not just this one.
|
|
if test -n "$x_libraries"; then
|
|
X_LIBS="$X_LIBS -L$x_libraries"
|
|
dnl FIXME: banish uname from this macro!
|
|
# For Solaris; some versions of Sun CC require a space after -R and
|
|
# others require no space. Words are not sufficient . . . .
|
|
case `(uname -sr) 2>/dev/null` in
|
|
"SunOS 5"*)
|
|
AC_MSG_CHECKING([whether -R must be followed by a space])
|
|
ac_xsave_LIBS=$LIBS; LIBS="$LIBS -R$x_libraries"
|
|
AC_LINK_IFELSE([AC_LANG_PROGRAM()], ac_R_nospace=yes, ac_R_nospace=no)
|
|
if test $ac_R_nospace = yes; then
|
|
AC_MSG_RESULT([no])
|
|
X_LIBS="$X_LIBS -R$x_libraries"
|
|
else
|
|
LIBS="$ac_xsave_LIBS -R $x_libraries"
|
|
AC_LINK_IFELSE([AC_LANG_PROGRAM()], ac_R_space=yes, ac_R_space=no)
|
|
if test $ac_R_space = yes; then
|
|
AC_MSG_RESULT([yes])
|
|
X_LIBS="$X_LIBS -R $x_libraries"
|
|
else
|
|
AC_MSG_RESULT([neither works])
|
|
fi
|
|
fi
|
|
LIBS=$ac_xsave_LIBS
|
|
esac
|
|
fi
|
|
|
|
# Check for system-dependent libraries X programs must link with.
|
|
# Do this before checking for the system-independent R6 libraries
|
|
# (-lICE), since we may need -lsocket or whatever for X linking.
|
|
|
|
if test "$ISC" = yes; then
|
|
X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl_s -linet"
|
|
else
|
|
# Martyn Johnson says this is needed for Ultrix, if the X
|
|
# libraries were built with DECnet support. And Karl Berry says
|
|
# the Alpha needs dnet_stub (dnet does not exist).
|
|
ac_xsave_LIBS="$LIBS"; LIBS="$LIBS $X_LIBS -lX11"
|
|
AC_TRY_LINK_FUNC(XOpenDisplay, ,
|
|
[AC_CHECK_LIB(dnet, dnet_ntoa, [X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet"])
|
|
if test $ac_cv_lib_dnet_dnet_ntoa = no; then
|
|
AC_CHECK_LIB(dnet_stub, dnet_ntoa,
|
|
[X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet_stub"])
|
|
fi])
|
|
LIBS="$ac_xsave_LIBS"
|
|
|
|
# msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT,
|
|
# to get the SysV transport functions.
|
|
# Chad R. Larson says the Pyramis MIS-ES running DC/OSx (SVR4)
|
|
# needs -lnsl.
|
|
# The nsl library prevents programs from opening the X display
|
|
# on Irix 5.2, according to T.E. Dickey.
|
|
# The functions gethostbyname, getservbyname, and inet_addr are
|
|
# in -lbsd on LynxOS 3.0.1/i386, according to Lars Hecking.
|
|
AC_CHECK_FUNC(gethostbyname)
|
|
if test $ac_cv_func_gethostbyname = no; then
|
|
AC_CHECK_LIB(nsl, gethostbyname, X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl")
|
|
if test $ac_cv_lib_nsl_gethostbyname = no; then
|
|
AC_CHECK_LIB(bsd, gethostbyname, X_EXTRA_LIBS="$X_EXTRA_LIBS -lbsd")
|
|
fi
|
|
fi
|
|
|
|
# lieder@skyler.mavd.honeywell.com says without -lsocket,
|
|
# socket/setsockopt and other routines are undefined under SCO ODT
|
|
# 2.0. But -lsocket is broken on IRIX 5.2 (and is not necessary
|
|
# on later versions), says Simon Leinen: it contains gethostby*
|
|
# variants that don't use the nameserver (or something). -lsocket
|
|
# must be given before -lnsl if both are needed. We assume that
|
|
# if connect needs -lnsl, so does gethostbyname.
|
|
AC_CHECK_FUNC(connect)
|
|
if test $ac_cv_func_connect = no; then
|
|
AC_CHECK_LIB(socket, connect, X_EXTRA_LIBS="-lsocket $X_EXTRA_LIBS", ,
|
|
$X_EXTRA_LIBS)
|
|
fi
|
|
|
|
# Guillermo Gomez says -lposix is necessary on A/UX.
|
|
AC_CHECK_FUNC(remove)
|
|
if test $ac_cv_func_remove = no; then
|
|
AC_CHECK_LIB(posix, remove, X_EXTRA_LIBS="$X_EXTRA_LIBS -lposix")
|
|
fi
|
|
|
|
# BSDI BSD/OS 2.1 needs -lipc for XOpenDisplay.
|
|
AC_CHECK_FUNC(shmat)
|
|
if test $ac_cv_func_shmat = no; then
|
|
AC_CHECK_LIB(ipc, shmat, X_EXTRA_LIBS="$X_EXTRA_LIBS -lipc")
|
|
fi
|
|
fi
|
|
|
|
# Check for libraries that X11R6 Xt/Xaw programs need.
|
|
ac_save_LDFLAGS=$LDFLAGS
|
|
test -n "$x_libraries" && LDFLAGS="$LDFLAGS -L$x_libraries"
|
|
# SM needs ICE to (dynamically) link under SunOS 4.x (so we have to
|
|
# check for ICE first), but we must link in the order -lSM -lICE or
|
|
# we get undefined symbols. So assume we have SM if we have ICE.
|
|
# These have to be linked with before -lX11, unlike the other
|
|
# libraries we check for below, so use a different variable.
|
|
# John Interrante, Karl Berry
|
|
AC_CHECK_LIB(ICE, IceConnectionNumber,
|
|
[X_PRE_LIBS="$X_PRE_LIBS -lSM -lICE"], , $X_EXTRA_LIBS)
|
|
LDFLAGS=$ac_save_LDFLAGS
|
|
|
|
fi
|
|
AC_SUBST(X_CFLAGS)dnl
|
|
AC_SUBST(X_PRE_LIBS)dnl
|
|
AC_SUBST(X_LIBS)dnl
|
|
AC_SUBST(X_EXTRA_LIBS)dnl
|
|
])# AC_PATH_XTRA
|
|
|
|
|
|
|
|
## ------------------------------------ ##
|
|
## Checks for not-quite-Unix variants. ##
|
|
## ------------------------------------ ##
|
|
|
|
|
|
# AC_CYGWIN
|
|
# ---------
|
|
# Check for Cygwin. This is a way to set the right value for
|
|
# EXEEXT.
|
|
AU_DEFUN([AC_CYGWIN],
|
|
[AC_REQUIRE([AC_CANONICAL_HOST])[]dnl
|
|
AC_DIAGNOSE([obsolete],
|
|
[$0 is obsolete: use AC_CANONICAL_HOST and $host_os])dnl
|
|
case $host_os in
|
|
*cygwin* ) CYGWIN=yes;;
|
|
* ) CYGWIN=no;;
|
|
esac
|
|
])# AC_CYGWIN
|
|
|
|
|
|
# AC_EMXOS2
|
|
# ---------
|
|
# Check for EMX on OS/2. This is another way to set the right value
|
|
# for EXEEXT.
|
|
AU_DEFUN([AC_EMXOS2],
|
|
[AC_REQUIRE([AC_CANONICAL_HOST])[]dnl
|
|
AC_DIAGNOSE([obsolete],
|
|
[$0 is obsolete: use AC_CANONICAL_HOST and $host_os])dnl
|
|
case $host_os in
|
|
*emx* ) EMXOS2=yes;;
|
|
* ) EMXOS2=no;;
|
|
esac
|
|
])# AC_EMXOS2
|
|
|
|
|
|
# AC_MINGW32
|
|
# ----------
|
|
# Check for mingw32. This is another way to set the right value for
|
|
# EXEEXT.
|
|
AU_DEFUN([AC_MINGW32],
|
|
[AC_REQUIRE([AC_CANONICAL_HOST])[]dnl
|
|
AC_DIAGNOSE([obsolete],
|
|
[$0 is obsolete: use AC_CANONICAL_HOST and $host_os])dnl
|
|
case $host_os in
|
|
*mingw32* ) MINGW32=yes;;
|
|
* ) MINGW32=no;;
|
|
esac
|
|
])# AC_MINGW32
|
|
|
|
|
|
|
|
|
|
## -------------------------- ##
|
|
## Checks for UNIX variants. ##
|
|
## -------------------------- ##
|
|
|
|
|
|
# These are kludges which should be replaced by a single POSIX check.
|
|
# They aren't cached, to discourage their use.
|
|
|
|
# AC_AIX
|
|
# ------
|
|
AC_DEFUN([AC_AIX],
|
|
[AH_VERBATIM([_ALL_SOURCE],
|
|
[/* Define if on AIX 3.
|
|
System headers sometimes define this.
|
|
We just want to avoid a redefinition error message. */
|
|
@%:@ifndef _ALL_SOURCE
|
|
@%:@ undef _ALL_SOURCE
|
|
@%:@endif])dnl
|
|
AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
|
|
AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
|
|
AC_MSG_CHECKING([for AIX])
|
|
AC_EGREP_CPP(yes,
|
|
[#ifdef _AIX
|
|
yes
|
|
#endif
|
|
],
|
|
[AC_MSG_RESULT([yes])
|
|
AC_DEFINE(_ALL_SOURCE)],
|
|
[AC_MSG_RESULT([no])])
|
|
])# AC_AIX
|
|
|
|
|
|
# AC_MINIX
|
|
# --------
|
|
AC_DEFUN([AC_MINIX],
|
|
[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
|
|
AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
|
|
AC_CHECK_HEADER(minix/config.h, MINIX=yes, MINIX=)
|
|
if test "$MINIX" = yes; then
|
|
AC_DEFINE(_POSIX_SOURCE, 1,
|
|
[Define if you need to in order for `stat' and other things to
|
|
work.])
|
|
AC_DEFINE(_POSIX_1_SOURCE, 2,
|
|
[Define if the system does not provide POSIX.1 features except
|
|
with this defined.])
|
|
AC_DEFINE(_MINIX, 1,
|
|
[Define if on MINIX.])
|
|
fi
|
|
])# AC_MINIX
|
|
|
|
|
|
# AC_ISC_POSIX
|
|
# ------------
|
|
AC_DEFUN([AC_ISC_POSIX],
|
|
[AC_REQUIRE([AC_PROG_CC])dnl
|
|
AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
|
|
AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
|
|
AC_MSG_CHECKING([for POSIXized ISC])
|
|
if test -d /etc/conf/kconfig.d &&
|
|
grep _POSIX_VERSION [/usr/include/sys/unistd.h] >/dev/null 2>&1
|
|
then
|
|
AC_MSG_RESULT([yes])
|
|
ISC=yes # If later tests want to check for ISC.
|
|
AC_DEFINE(_POSIX_SOURCE, 1,
|
|
[Define if you need to in order for stat and other things to
|
|
work.])
|
|
if test "$GCC" = yes; then
|
|
CC="$CC -posix"
|
|
else
|
|
CC="$CC -Xp"
|
|
fi
|
|
else
|
|
AC_MSG_RESULT([no])
|
|
ISC=
|
|
fi
|
|
])# AC_ISC_POSIX
|
|
|
|
|
|
# AC_XENIX_DIR
|
|
# ------------
|
|
AU_DEFUN(AC_XENIX_DIR,
|
|
[# You shouldn't need to depend upon XENIX. Remove this test if useless.
|
|
AC_MSG_CHECKING([for Xenix])
|
|
AC_EGREP_CPP(yes,
|
|
[#if defined(M_XENIX) && !defined(M_UNIX)
|
|
yes
|
|
@%:@endif],
|
|
[AC_MSG_RESULT([yes]); XENIX=yes],
|
|
[AC_MSG_RESULT([no]); XENIX=])
|
|
|
|
AC_HEADER_DIRENT[]dnl
|
|
])
|
|
|
|
|
|
# AC_DYNIX_SEQ
|
|
# ------------
|
|
AU_DEFUN([AC_DYNIX_SEQ], [AC_FUNC_GETMNTENT])
|
|
|
|
|
|
# AC_IRIX_SUN
|
|
# -----------
|
|
AU_DEFUN([AC_IRIX_SUN],
|
|
[AC_FUNC_GETMNTENT
|
|
AC_CHECK_LIB(sun, getpwnam)])
|
|
|
|
|
|
# AC_SCO_INTL
|
|
# -----------
|
|
AU_DEFUN([AC_SCO_INTL], [AC_FUNC_STRFTIME])
|