dnl dnl configure.ac --- autoconf input file for gawk dnl dnl Copyright (C) 1995-2014 the Free Software Foundation, Inc. dnl dnl This file is part of GAWK, the GNU implementation of the dnl AWK Programming Language. dnl dnl GAWK is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 3 of the License, or dnl (at your option) any later version. dnl dnl GAWK is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program; if not, write to the Free Software dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA dnl dnl Process this file with autoconf to produce a configure script. AC_INIT([GNU Awk], 4.1.1, bug-gawk@gnu.org, gawk) # This is a hack. Different versions of install on different systems # are just too different. Chuck it and use install-sh. # # If the user supplies $INSTALL, figure they know what they're doing. # # With Autoconf 2.5x, this needs to come very early on, but *after* # the INIT macro. Sigh. if test "x$INSTALL" = "x" then INSTALL="$srcdir/install-sh -c" export INSTALL fi AC_PREREQ(2.69) AM_INIT_AUTOMAKE([1.13 dist-xz dist-lzip]) AC_CONFIG_MACRO_DIR([m4]) dnl Additional argument stuff AC_ARG_WITH(whiny-user-strftime, [ --with-whiny-user-strftime Force use of included version of strftime for deficient systems], if test "$withval" = yes then AC_DEFINE(USE_INCLUDED_STRFTIME, 1, [force use of our version of strftime]) fi ) AC_ARG_ENABLE([lint], [ --disable-lint Disable gawk lint checking], if test "$enableval" = no then AC_DEFINE(NO_LINT, 1, [disable lint checks]) fi ) AC_CANONICAL_HOST AC_USE_SYSTEM_EXTENSIONS dnl checks for programs AC_PROG_EGREP AC_PROG_YACC AC_PROG_LN_S AC_PROG_CC AC_PROG_CPP AC_OBJEXT AC_EXEEXT AC_PROG_INSTALL AC_PROG_MAKE_SET # This is mainly for my use during testing and development. # Yes, it's a bit of a hack. AC_MSG_CHECKING([for special development options]) if test -f $srcdir/.developing then # add other debug flags as appropriate, save GAWKDEBUG for emergencies CFLAGS="$CFLAGS -DARRAYDEBUG -DYYDEBUG" if grep dbug $srcdir/.developing then CFLAGS="$CFLAGS -DDBUG" LIBS="$LIBS dbug/libdbug.a" fi # turn on compiler warnings if we're doing development # enable debugging using macros also if test "$GCC" = yes then CFLAGS="$CFLAGS -Wall -fno-builtin -g3 -gdwarf-2" fi AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) CFLAGS="$CFLAGS -DNDEBUG" # turn off assertions fi AC_SUBST(CFLAGS) # shared library suffix for dynamic loading: AC_SUBST(acl_shlibext) # default shared library location AC_SUBST([pkgextensiondir], ['${pkglibdir}']) dnl checks for systems AC_ZOS_USS AC_ISC_POSIX AC_SYS_LARGEFILE GAWK_AC_AIX_TWEAK GAWK_AC_LINUX_ALPHA if test "$ISC" = 1 # will be set by test for ISC then dnl need -D_SYSV3 for ISC CFLAGS="$CFLAGS -D_SYSV3" fi dnl check for systems where libc is borked for regex handling case $host_os in mirbsd*) AC_DEFINE([LIBC_IS_BORKED], 1, [libc is broken for regex handling]) ;; esac dnl Set the programming language for checks. Fortunately, dnl this only needs to be set once, since everything is in C. AC_LANG([C]) dnl initialize GNU gettext AM_GNU_GETTEXT([external]) AM_GNU_GETTEXT_VERSION([0.18.1]) AM_LANGINFO_CODESET gt_LC_MESSAGES dnl checks for header files AC_CHECK_HEADERS(arpa/inet.h fcntl.h limits.h locale.h libintl.h mcheck.h \ netdb.h netinet/in.h stdarg.h stddef.h string.h \ sys/ioctl.h sys/param.h sys/socket.h sys/time.h unistd.h \ termios.h stropts.h wchar.h wctype.h) AC_HEADER_STDC AC_HEADER_STDBOOL AC_HEADER_SYS_WAIT AC_HEADER_TIME if test "$ac_cv_header_string_h" = yes then AC_CHECK_HEADERS(memory.h) else AC_CHECK_HEADERS(strings.h) fi dnl Check cross compiling AM_CONDITIONAL([TEST_CROSS_COMPILE], [test "x$build_alias" != "x$host_alias"]) dnl checks for typedefs AC_TYPE_PID_T AC_TYPE_SIGNAL AC_SIZE_T AC_TYPE_GETGROUPS AC_TYPE_LONG_LONG_INT AC_TYPE_UNSIGNED_LONG_LONG_INT AC_TYPE_INTMAX_T AC_TYPE_UINTMAX_T AC_CHECK_TYPE(ssize_t, int) AC_CHECK_SIZEOF(unsigned int) AC_CHECK_SIZEOF(unsigned long) dnl see if time_t is defined in AC_TRY_COMPILE([#include ],[ time_t foo; foo = 0; ], AC_DEFINE(TIME_T_IN_SYS_TYPES_H, 1, [some systems define this type here])) dnl check for wctype_t in AC_TRY_COMPILE([#include ],[ wctype_t foo; foo = 0; ], AC_DEFINE(HAVE_WCTYPE_T, 1, [systems should define this type here])) dnl check for wint_t in AC_TRY_COMPILE([#include ],[ wint_t foo; foo = 0; ], AC_DEFINE(HAVE_WINT_T, 1, [systems should define this type here])) dnl check for sockaddr_storage AC_TRY_COMPILE([#include #include ],[ struct sockaddr_storage foo; ], AC_DEFINE(HAVE_SOCKADDR_STORAGE, 1, [newer systems define this type here])) dnl Borrwed from rsync, thanks to to Jim Meyering. dnl Check for socklen_t: historically on BSD it is an int, and in dnl POSIX 1g it is a type of its own, but some platforms use different dnl types for the argument to getsockopt, getpeername, etc. So we dnl have to test to find something that will work. dnl This is no good, because passing the wrong pointer on C compilers is dnl likely to only generate a warning, not an error. AC_DEFUN([TYPE_SOCKLEN_T], [ AC_CHECK_TYPE([socklen_t], ,[ AC_MSG_CHECKING([for socklen_t equivalent]) AC_CACHE_VAL([rsync_cv_socklen_t_equiv], [ # Systems have either "struct sockaddr *" or # "void *" as the second argument to getpeername rsync_cv_socklen_t_equiv= for arg2 in "struct sockaddr" void; do for t in int size_t unsigned long "unsigned long"; do AC_TRY_COMPILE([ #include #include int getpeername (int, $arg2 *, $t *); ],[ $t len; getpeername(0,0,&len); ],[ rsync_cv_socklen_t_equiv="$t" break ]) done done if test "x$rsync_cv_socklen_t_equiv" = x; then dnl Some systems get this. Default to int. -- ADR dnl AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) rsync_cv_socklen_t_equiv=int fi ]) AC_MSG_RESULT($rsync_cv_socklen_t_equiv) AC_DEFINE_UNQUOTED(socklen_t, $rsync_cv_socklen_t_equiv, [type to use in place of socklen_t if not defined])], [#include #include ]) ]) TYPE_SOCKLEN_T dnl Check for C11 _Noreturn GAWK_AC_NORETURN dnl checks for functions AC_FUNC_MKTIME case "$ac_cv_func_working_mktime" in yes) AC_DEFINE(HAVE_MKTIME, 1, [we have the mktime function]) ;; esac AC_CHECK_FUNC(getaddrinfo, [AC_DEFINE(HAVE_GETADDRINFO, 1, [have getaddrinfo])], [AC_CHECK_LIB(socket, getaddrinfo, [AC_DEFINE(HAVE_GETADDRINFO, 1, [have getaddrinfo])])]) AC_CHECK_LIB(m, fmod) AC_CHECK_LIB(m, isinf) AC_CHECK_LIB(m, ismod) dnl Don't look for libsigsegv on OSF/1, gives us severe headaches case $host_os in osf1) : ;; *) gl_LIBSIGSEGV ;; esac # Need the check for mkstemp and tmpfile for missing_d/snprintf.c. AC_CHECK_FUNCS(atexit btowc fmod getgrent getgroups grantpt \ isascii iswctype iswlower iswupper mbrlen \ memcmp memcpy memcpy_ulong memmove memset \ memset_ulong mkstemp posix_openpt setenv setlocale setsid snprintf strchr \ strerror strftime strncasecmp strcoll strtod strtoul \ system tmpfile towlower towupper tzset usleep wcrtomb \ wcscoll wctype) dnl this check is for both mbrtowc and the mbstate_t type, which is good AC_FUNC_MBRTOWC dnl check for dynamic linking dnl This is known to be very primitive AC_ARG_ENABLE([extensions], [AS_HELP_STRING([--disable-extensions], [disable dynamic extensions (default is detect)])]) if test "x$enable_extensions" != "xno"; then extensions_supported=no dnl On MirBSD (and probably other systems), don't even try. case $host_os in mirbsd* | openedition*) # OS/390 z/OS POSIX layer cat << \EOF > extension/Makefile all dist check clean distclean install uninstall distcheck: @exit 0 EOF ;; *) AC_CHECK_HEADER(dlfcn.h, [ # Check this separately. Some systems have dlopen # in libc. Notably freebsd and cygwin. # HP-NSK has it in zrldsrl AC_SEARCH_LIBS(dlopen, dl zrldsrl, gawk_have_dlopen=yes, gawk_have_dlopen=no) # Only do DYNAMIC if we have the lib. z/OS (some versions) have # the header but not the lib, apparently if test "$gawk_have_dlopen" = yes then extensions_supported=yes AC_DEFINE([DYNAMIC], 1, [dynamic loading is possible]) # Add -export-dynamic for old extensions. Only works for GCC if test "$GCC" = yes; then case $host_os in linux*|freebsd*) LDFLAGS="$LDFLAGS -export-dynamic" ;; esac fi fi ]) ;; esac if test "x$enable_extensions$extensions_supported" = "xyesno"; then AC_MSG_ERROR([extension support requested, but unavailable]) fi enable_extensions=$extensions_supported fi dnl check for how to use getpgrp dnl have to hardwire it for VMS POSIX. Sigh. dnl ditto for BeOS, OS/2, and MS-DOS. case $host_os in vms*|beos*|os2*|msdos) AC_DEFINE(GETPGRP_VOID, 1, [Define to 1 if the getpgrp function requires zero arguments.]) ;; *) AC_FUNC_GETPGRP ;; esac dnl check for printf %F format AC_MSG_CHECKING([for printf %F format]) AC_RUN_IFELSE([ AC_LANG_SOURCE([ #include int main() { char buf[[100]]; sprintf(buf, "%F", 123.45); if (strcmp(buf, "123.450000") == 0) return 0; else return 1; } ])], has_f_format=yes, has_f_format=no, has_f_format=no dnl Cross-compiling, assuming the worst. ) if test "$has_f_format" = yes; then AC_DEFINE(PRINTF_HAS_F_FORMAT, 1, [Define to 1 if *printf supports %F format]) fi AC_MSG_RESULT($has_f_format) dnl check for sockets GAWK_AC_LIB_SOCKETS dnl check for readline support GAWK_CHECK_READLINE dnl check for mpfr support GNUPG_CHECK_MPFR dnl checks for structure members AC_CHECK_MEMBERS([struct stat.st_blksize]) AC_STRUCT_TM AC_STRUCT_TIMEZONE dnl checks for compiler characteristics AC_C_CHAR_UNSIGNED AC_C_CONST AC_C_RESTRICT AC_C_INLINE AC_C_STRINGIZE AC_CONFIG_HEADERS([config.h:configh.in]) AH_BOTTOM([#include "custom.h"]) dnl Crude but small hack to make plug-ins work on Mac OS X dnl We should really use the libtool value for shrext_cmds, but that dnl is not available here, since we do not use libtool at the top level. case $acl_shlibext in dylib) GAWKLIBEXT=so ;; # MacOS uses .dylib for shared libraries, but libtool uses .so for modules *) GAWKLIBEXT=$acl_shlibext ;; esac AC_SUBST(GAWKLIBEXT) AC_CONFIG_FILES(Makefile awklib/Makefile doc/Makefile po/Makefile.in test/Makefile) if test "x$enable_extensions" = "xyes"; then AC_CONFIG_SUBDIRS(extension) fi AC_OUTPUT