| 1 | dnl
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| 2 | dnl configure.ac --- autoconf input file for gawk
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| 3 | dnl
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| 4 | dnl Copyright (C) 1995-2005 the Free Software Foundation, Inc.
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| 5 | dnl
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| 6 | dnl This file is part of GAWK, the GNU implementation of the
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| 7 | dnl AWK Programming Language.
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| 8 | dnl
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| 9 | dnl GAWK is free software; you can redistribute it and/or modify
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| 10 | dnl it under the terms of the GNU General Public License as published by
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| 11 | dnl the Free Software Foundation; either version 2 of the License, or
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| 12 | dnl (at your option) any later version.
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| 13 | dnl
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| 14 | dnl GAWK is distributed in the hope that it will be useful,
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| 15 | dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 17 | dnl GNU General Public License for more details.
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| 18 | dnl
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| 19 | dnl You should have received a copy of the GNU General Public License
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| 20 | dnl along with this program; if not, write to the Free Software
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| 21 | dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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| 22 | dnl
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| 23 |
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| 24 | dnl Process this file with autoconf to produce a configure script.
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| 25 |
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| 26 | AC_INIT([GNU Awk], 3.1.5, bug-gawk@gnu.org, gawk)
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| 27 |
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| 28 | # This is a hack. Different versions of install on different systems
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| 29 | # are just too different. Chuck it and use install-sh.
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| 30 | #
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| 31 | # If the user supplies $INSTALL, figure they know what they're doing.
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| 32 | #
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| 33 | # With Autoconf 2.5x, this needs to come very early on, but *after*
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| 34 | # the INIT macro. Sigh.
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| 35 |
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| 36 | if test "x$INSTALL" = "x"
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| 37 | then
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| 38 | INSTALL="$srcdir/install-sh -c"
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| 39 | export INSTALL
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| 40 | fi
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| 41 |
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| 42 | AC_PREREQ(2.59)
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| 43 | AM_INIT_AUTOMAKE
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| 44 |
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| 45 | dnl Additional argument stuff
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| 46 | AC_ARG_ENABLE(portals, [ --enable-portals Enable /p as path prefix for portals],
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| 47 | if test "$enableval" = yes
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| 48 | then
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| 49 | AC_DEFINE(HAVE_PORTALS, 1, [we have portals on /p on this system])
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| 50 | fi
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| 51 | )
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| 52 | AC_ARG_WITH(whiny-user-strftime, [ --with-whiny-user-strftime Force use of included version of strftime for deficient systems],
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| 53 | if test "$withval" = yes
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| 54 | then
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| 55 | AC_DEFINE(USE_INCLUDED_STRFTIME, 1,
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| 56 | [force use of our version of strftime])
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| 57 | fi
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| 58 | )
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| 59 | AC_ARG_ENABLE([lint], [ --disable-lint Disable gawk lint checking],
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| 60 | if test "$enableval" = no
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| 61 | then
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| 62 | AC_DEFINE(NO_LINT, 1, [disable lint checks])
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| 63 | fi
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| 64 | )
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| 65 | AC_ARG_ENABLE(switch, [ --enable-switch Enable switch statements for awk programs],
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| 66 | if test "$enableval" = yes
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| 67 | then
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| 68 | AC_DEFINE(ALLOW_SWITCH, 1, [switch statements are enabled in awk programs])
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| 69 | fi
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| 70 | )
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| 71 |
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| 72 | dnl checks for programs
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| 73 | AC_PROG_EGREP
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| 74 | AC_PROG_YACC
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| 75 | AC_PROG_LN_S
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| 76 | AC_PROG_CC
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| 77 | AC_PROG_CPP
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| 78 | AC_PROG_RANLIB
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| 79 |
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| 80 | AC_OBJEXT
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| 81 | AC_EXEEXT
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| 82 |
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| 83 | AC_PROG_INSTALL
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| 84 |
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| 85 | AC_PROG_MAKE_SET
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| 86 |
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| 87 | # This is mainly for my use during testing and development.
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| 88 | # Yes, it's a bit of a hack.
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| 89 | AC_MSG_CHECKING([for special development options])
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| 90 | if test -f $srcdir/.developing
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| 91 | then
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| 92 | # add other debug flags as appropriate, save GAWKDEBUG for emergencies
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| 93 | CFLAGS="$CFLAGS -DARRAYDEBUG"
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| 94 | if grep dbug $srcdir/.developing
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| 95 | then
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| 96 | CFLAGS="$CFLAGS -DDBUG"
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| 97 | LIBS="$LIBS dbug/libdbug.a"
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| 98 | fi
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| 99 | # turn on compiler warnings if we're doing development
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| 100 | if test "$GCC" = yes
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| 101 | then
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| 102 | CFLAGS="$CFLAGS -Wall"
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| 103 | fi
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| 104 | AC_MSG_RESULT([yes])
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| 105 | else
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| 106 | AC_MSG_RESULT([no])
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| 107 | fi
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| 108 |
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| 109 | AC_SUBST(CFLAGS)
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| 110 |
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| 111 | dnl checks for systems
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| 112 | AC_AIX
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| 113 | AC_ISC_POSIX
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| 114 | AC_MINIX
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| 115 | AC_SYS_LARGEFILE
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| 116 | GAWK_AC_AIX_TWEAK
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| 117 | GAWK_AC_LINUX_ALPHA
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| 118 |
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| 119 | if test "$ISC" = 1 # will be set by test for ISC
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| 120 | then
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| 121 | dnl need -D_SYSV3 for ISC
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| 122 | CFLAGS="$CFLAGS -D_SYSV3"
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| 123 | fi
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| 124 |
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| 125 | dnl check for C compiler for automake
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| 126 | AM_PROG_CC_STDC
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| 127 | AM_C_PROTOTYPES
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| 128 |
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| 129 | dnl Cygwin doesn't like to get libs with full paths
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| 130 | dnl since that overrides linking against DLLs.
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| 131 | case `(uname) 2> /dev/null` in
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| 132 | *CYGWIN*)
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| 133 | with_libiconv_prefix=no
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| 134 | with_libintl_prefix=no
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| 135 | ;;
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| 136 | *)
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| 137 | ;;
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| 138 | esac
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| 139 |
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| 140 | dnl initialize GNU gettext
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| 141 | AM_GNU_GETTEXT([external])
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| 142 | AM_GNU_GETTEXT_VERSION([0.14.4])
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| 143 |
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| 144 | dnl checks for header files
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| 145 | AC_HEADER_STDC
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| 146 | AC_HEADER_SYS_WAIT
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| 147 | AC_HEADER_TIME
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| 148 | AC_CHECK_HEADERS(fcntl.h limits.h locale.h libintl.h mcheck.h \
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| 149 | netdb.h netinet/in.h signum.h stdarg.h string.h \
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| 150 | sys/param.h sys/socket.h sys/time.h unistd.h \
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| 151 | termios.h stropts.h wchar.h wctype.h)
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| 152 |
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| 153 | if test "$ac_cv_header_string_h" = yes
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| 154 | then
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| 155 | AC_CHECK_HEADERS(memory.h)
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| 156 | else
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| 157 | AC_CHECK_HEADERS(strings.h)
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| 158 | fi
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| 159 |
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| 160 | dnl checks for typedefs
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| 161 | AC_TYPE_PID_T
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| 162 | AC_TYPE_SIGNAL
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| 163 | AC_SIZE_T
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| 164 | AC_TYPE_GETGROUPS
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| 165 | gl_AC_TYPE_LONG_LONG
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| 166 | gl_AC_TYPE_UNSIGNED_LONG_LONG
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| 167 | gl_AC_TYPE_INTMAX_T
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| 168 | gl_AC_TYPE_UINTMAX_T
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| 169 | AC_CHECK_TYPE(ssize_t, int)
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| 170 | AC_CHECK_SIZEOF(unsigned int)
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| 171 | AC_CHECK_SIZEOF(unsigned long)
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| 172 | AC_EGREP_HEADER([int.*sprintf], stdio.h,
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| 173 | AC_DEFINE(SPRINTF_RET, int, [return type of sprintf]),
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| 174 | AC_DEFINE(SPRINTF_RET, char *))
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| 175 | dnl see if time_t is defined in <sys/types.h>
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| 176 | AC_TRY_COMPILE([#include <sys/types.h>],[
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| 177 | time_t foo;
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| 178 | foo = 0;
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| 179 | ],
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| 180 | AC_DEFINE(TIME_T_IN_SYS_TYPES_H, 1,
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| 181 | [some systems define this type here]))
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| 182 | dnl check for wctype_t in <wctype.h>
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| 183 | AC_TRY_COMPILE([#include <wctype.h>],[
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| 184 | wctype_t foo;
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| 185 | foo = 0;
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| 186 | ],
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| 187 | AC_DEFINE(HAVE_WCTYPE_T, 1, [systems should define this type here]))
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| 188 | dnl check for wint_t in <wctype.h>
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| 189 | AC_TRY_COMPILE([#include <wctype.h>],[
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| 190 | wint_t foo;
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| 191 | foo = 0;
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| 192 | ],
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| 193 | AC_DEFINE(HAVE_WINT_T, 1, [systems should define this type here]))
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| 194 |
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| 195 | dnl Borrwed from rsync, thanks to to Jim Meyering.
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| 196 |
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| 197 | dnl Check for socklen_t: historically on BSD it is an int, and in
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| 198 | dnl POSIX 1g it is a type of its own, but some platforms use different
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| 199 | dnl types for the argument to getsockopt, getpeername, etc. So we
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| 200 | dnl have to test to find something that will work.
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| 201 |
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| 202 | dnl This is no good, because passing the wrong pointer on C compilers is
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| 203 | dnl likely to only generate a warning, not an error.
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| 204 |
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| 205 | AC_DEFUN([TYPE_SOCKLEN_T],
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| 206 | [
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| 207 | AC_CHECK_TYPE([socklen_t], ,[
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| 208 | AC_MSG_CHECKING([for socklen_t equivalent])
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| 209 | AC_CACHE_VAL([rsync_cv_socklen_t_equiv],
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| 210 | [
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| 211 | # Systems have either "struct sockaddr *" or
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| 212 | # "void *" as the second argument to getpeername
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| 213 | rsync_cv_socklen_t_equiv=
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| 214 | for arg2 in "struct sockaddr" void; do
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| 215 | for t in int size_t unsigned long "unsigned long"; do
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| 216 | AC_TRY_COMPILE([
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| 217 | #include <sys/types.h>
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| 218 | #include <sys/socket.h>
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| 219 |
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| 220 | int getpeername (int, $arg2 *, $t *);
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| 221 | ],[
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| 222 | $t len;
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| 223 | getpeername(0,0,&len);
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| 224 | ],[
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| 225 | rsync_cv_socklen_t_equiv="$t"
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| 226 | break
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| 227 | ])
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| 228 | done
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| 229 | done
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| 230 |
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| 231 | if test "x$rsync_cv_socklen_t_equiv" = x; then
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| 232 | dnl Some systems get this. Default to int. -- ADR
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| 233 | dnl AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
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| 234 | rsync_cv_socklen_t_equiv=int
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| 235 | fi
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| 236 | ])
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| 237 | AC_MSG_RESULT($rsync_cv_socklen_t_equiv)
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| 238 | AC_DEFINE_UNQUOTED(socklen_t, $rsync_cv_socklen_t_equiv,
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| 239 | [type to use in place of socklen_t if not defined])],
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| 240 | [#include <sys/types.h>
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| 241 | #include <sys/socket.h>])
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| 242 | ])
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| 243 | TYPE_SOCKLEN_T
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| 244 |
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| 245 | dnl checks for functions
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| 246 | AC_FUNC_VPRINTF
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| 247 | GAWK_AC_FUNC_STRTOD_C89
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| 248 | AC_FUNC_MKTIME
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| 249 | case "$ac_cv_func_working_mktime" in
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| 250 | yes) AC_DEFINE(HAVE_MKTIME, 1, [we have the mktime function])
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| 251 | ;;
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| 252 | esac
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| 253 |
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| 254 | AC_CHECK_LIB(m, fmod)
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| 255 | AC_CHECK_FUNCS(fmod getgrent getgroups grantpt iswctype mbrlen \
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| 256 | memcmp memcpy memmove memset setlocale snprintf strchr \
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| 257 | strerror strftime strncasecmp strtod strtoul system tzset \
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| 258 | isascii btowc \
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| 259 | iswlower iswupper towlower towupper \
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| 260 | wcrtomb wcscoll wcscoll wctype)
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| 261 | dnl this check is for both mbrtowc and the mbstate_t type, which is good
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| 262 | AC_FUNC_MBRTOWC
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| 263 |
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| 264 | dnl check for dynamic linking
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| 265 | dnl This is known to be very primitive
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| 266 | AC_CHECK_HEADER(dlfcn.h,
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| 267 | [AC_DEFINE([DYNAMIC], 1, [dynamic loading is possible])
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| 268 | if test "$GCC" = yes
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| 269 | then
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| 270 | # Add others here as appropriate,
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| 271 | # one day use GNU libtool.
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| 272 | if uname | $EGREP -i 'linux|freebsd|cygwin' > /dev/null
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| 273 | then
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| 274 | LDFLAGS="$LDFLAGS -export-dynamic"
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| 275 | fi
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| 276 | fi
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| 277 |
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| 278 | # Check this separately. Some systems have dlopen
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| 279 | # in libc. Notably freebsd and cygwin.
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| 280 | AC_CHECK_LIB(dl, dlopen)
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| 281 | ])
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| 282 |
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| 283 | dnl check for how to use getpgrp
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| 284 | dnl have to hardwire it for VMS POSIX. Sigh.
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| 285 | dnl ditto for BeOS, OS/2, and MS-DOS.
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| 286 | case `(uname) 2> /dev/null` in
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| 287 | *VMS*|*BeOS*|*OS/2*|*MS-DOS*)
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| 288 | AC_DEFINE(GETPGRP_VOID, 1,
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| 289 | [Define to 1 if the getpgrp function requires zero arguments.])
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| 290 | ;;
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| 291 | *) AC_FUNC_GETPGRP
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| 292 | ;;
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| 293 | esac
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| 294 |
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| 295 | dnl check for printf %F format
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| 296 | AC_MSG_CHECKING([for printf %F format])
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| 297 | AC_RUN_IFELSE([
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| 298 | #include <stdio.h>
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| 299 |
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| 300 | int main()
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| 301 | {
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| 302 | char buf[[100]];
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| 303 |
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| 304 | sprintf(buf, "%F", 123.45);
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| 305 |
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| 306 | if (strcmp(buf, "123.450000") == 0)
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| 307 | return 0;
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| 308 | else
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| 309 | return 1;
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| 310 | }
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| 311 | ],
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| 312 | has_f_format=yes,
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| 313 | has_f_format=no,
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| 314 | has_f_format=no dnl Cross-compiling, assuming the worst.
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| 315 | )
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| 316 | if test "$has_f_format" = yes; then
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| 317 | AC_DEFINE(PRINTF_HAS_F_FORMAT, 1, [Define to 1 if *printf supports %F format])
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| 318 | fi
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| 319 | AC_MSG_RESULT($has_f_format)
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| 320 |
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| 321 | dnl check for sockets
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| 322 | GAWK_AC_LIB_SOCKETS
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| 323 |
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| 324 | dnl checks for structure members
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| 325 | AC_STRUCT_ST_BLKSIZE
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| 326 | AC_HEADER_TIME
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| 327 | AC_STRUCT_TM
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| 328 | AC_STRUCT_TIMEZONE
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| 329 |
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| 330 | dnl checks for compiler characteristics
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| 331 | AC_C_CHAR_UNSIGNED
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| 332 | AC_C_CONST
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| 333 | AC_C_RESTRICT
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| 334 | AC_C_INLINE
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| 335 | AC_C_STRINGIZE
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| 336 |
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| 337 | AC_CONFIG_HEADERS([config.h:configh.in])
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| 338 | AH_BOTTOM([#include "custom.h"])
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| 339 |
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| 340 | AC_CONFIG_FILES(Makefile
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| 341 | awklib/Makefile
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| 342 | doc/Makefile
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| 343 | po/Makefile.in
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| 344 | test/Makefile
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| 345 | [version.c:version.in])
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| 346 |
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| 347 | dnl This is a significant and rather ugly hack. We want to keep
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| 348 | dnl version.c from being removed upon `make distclean'.
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| 349 | dnl We put the `$$' on the front for old systems with 14-char filenames.
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| 350 |
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| 351 | dnl At this point, `configure' has finished creating `config.status' which
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| 352 | dnl actually does all the checking and configuring. `config.status' is run
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| 353 | dnl by the AC_OUTPUT macro below. This step comes in between the two: it
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| 354 | dnl adds code to `config.status'. Doing it there ensures that this step
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| 355 | dnl happens *every* time `config.status' is run, such as when `make' decides
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| 356 | dnl to update something. Fun, fun, fun.
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| 357 |
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| 358 | dnl Be careful of multiple levels of shell quoting!
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| 359 |
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| 360 | dnl The trailing newline in the sed command is needed for Mac OS X. Sigh.
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| 361 |
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| 362 | AC_CONFIG_COMMANDS_POST([sed '$i\
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| 363 | echo $as_me: fixing Makefile to keep version.c\
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| 364 | sed "/CONFIG_CLEAN_FILES/s/version.c//" < Makefile > $$.Makefile\
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| 365 | mv $$.Makefile Makefile
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| 366 | ' < $CONFIG_STATUS > $$.gawk-hack
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| 367 | mv $$.gawk-hack $CONFIG_STATUS])
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| 368 |
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| 369 |
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| 370 | AC_OUTPUT
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