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dnl configure.ac --- autoconf input file for gawk
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dnl Copyright (C) 1995-2024 the Free Software Foundation, Inc.
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dnl Copyright (C) 1995-2014 the Free Software Foundation, Inc.
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dnl This file is part of GAWK, the GNU implementation of the
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dnl AWK Programming Language.
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dnl Process this file with autoconf to produce a configure script.
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AC_INIT([GNU Awk],[5.3.0c],[bug-gawk@gnu.org],[gawk])
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AC_INIT([GNU Awk], 4.1.60, bug-gawk@gnu.org, gawk)
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# This is a hack. Different versions of install on different systems
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# are just too different. Chuck it and use install-sh.
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# With Autoconf 2.5x, this needs to come very early on, but *after*
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# the INIT macro. Sigh.
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if test "$INSTALL" = ""
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if test "x$INSTALL" = "x"
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INSTALL="$srcdir/build-aux/install-sh -c"
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INSTALL="$srcdir/install-sh -c"
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AM_INIT_AUTOMAKE([1.13 dist-xz dist-lzip])
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AC_CONFIG_MACRO_DIR([m4])
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AC_CONFIG_AUX_DIR([build-aux])
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AM_INIT_AUTOMAKE([1.16 dist-xz dist-lzip subdir-objects])
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[AS_HELP_STRING([--disable-lint],[do not compile in gawk lint checking])],
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dnl Additional argument stuff
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AC_ARG_WITH(whiny-user-strftime, [ --with-whiny-user-strftime Force use of included version of strftime for deficient systems],
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if test "$withval" = yes
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AC_DEFINE(USE_INCLUDED_STRFTIME, 1,
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[force use of our version of strftime])
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AC_ARG_ENABLE([lint], [ --disable-lint Disable gawk lint checking],
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if test "$enableval" = no
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AC_DEFINE(NO_LINT, 1, [disable lint checks])
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AC_ARG_ENABLE([builtin-intdiv0],
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[AS_HELP_STRING([--enable-builtin-intdiv0],[enable built-in intdiv0 function])],
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if test "$enableval" = yes
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AC_DEFINE(SUPPLY_INTDIV, 1, [enable built-in intdiv0 function])
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sed '/^@set PATCHLEVEL/a\
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@set INTDIV' < "$srcdir"/doc/gawktexi.in > foo
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cp foo "$srcdir"/doc/gawktexi.in
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[AS_HELP_STRING([--disable-mpfr],[do not check for MPFR])],
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if test "$enableval" = no
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SKIP_PERSIST_MALLOC=no
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[AS_HELP_STRING([--disable-pma],[do not build gawk with the persistent memory allocator])],
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if test "$enableval" = no
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SKIP_PERSIST_MALLOC=yes
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AC_ARG_ENABLE([versioned-extension-dir],
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[AS_HELP_STRING([--enable-versioned-extension-dir], [use a versioned directory for extensions])],
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if test "$enableval" = yes
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MAJOR=`awk '/define gawk_api_major_version/ { print $3 }' < $srcdir/gawkapi.h`
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MINOR=`awk '/define gawk_api_minor_version/ { print $3 }' < $srcdir/gawkapi.h`
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# note leading slash on the value
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export EXTENSIONDIR=/ext-$MAJOR.$MINOR
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# set default shared library location
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AC_SUBST([pkgextensiondir], ['${pkglibdir}'${EXTENSIONDIR}])
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AC_USE_SYSTEM_EXTENSIONS
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dnl checks for programs
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# support/ builds libsupport.a, allow for cross version of ar
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ARFLAGS=cru # set default
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# This is mainly for my use during testing and development.
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# Yes, it's a bit of a hack.
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# Keep in sync with same code in extension/configure.ac
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AC_MSG_CHECKING([for special development options])
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if test -f $srcdir/.developing
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# add other debug flags as appropriate, save GAWKDEBUG for emergencies
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CFLAGS="$CFLAGS -DARRAYDEBUG -DYYDEBUG -DLOCALEDEBUG -DMEMDEBUG"
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CFLAGS="$CFLAGS -DARRAYDEBUG -DYYDEBUG"
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if grep dbug $srcdir/.developing
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CFLAGS="$CFLAGS -DDBUG"
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LIBS="$LIBS dbug/libdbug.a"
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# turn on compiler warnings if we're doing development
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# enable debugging using macros also
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if test "$GCC" = yes
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CFLAGS="$CFLAGS -Wall -fno-builtin"
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if grep -i '^mallocdebug$' $srcdir/.developing > /dev/null
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CFLAGS="$CFLAGS -DUSE_REAL_MALLOC"
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CFLAGS="$CFLAGS -Wall -fno-builtin -g3 -gdwarf-2"
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AC_MSG_RESULT([yes])
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# shared library suffix for dynamic loading:
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AC_SUBST(acl_shlibext)
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# default shared library location
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AC_SUBST([pkgextensiondir], ['${pkglibdir}'])
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dnl checks for systems
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AC_SEARCH_LIBS([strerror],[cposix])
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AC_MSG_CHECKING([if we are using EBCDIC])
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AC_EGREP_CPP([gnu_gawk_in_ebcdic],
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[AC_DEFINE(USE_EBCDIC, 1, Define to 1 if the character set is EBCDIC)
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AC_MSG_RESULT([$use_ebcdic])
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if test "$use_ebcdic" = yes
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if test "$ISC" = 1 # will be set by test for ISC
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ZOS_FAIL='; echo Expect $@ to fail on z/OS.'
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dnl need -D_SYSV3 for ISC
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CFLAGS="$CFLAGS -D_SYSV3"
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dnl check for systems where libc is borked for regex handling
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AC_DEFINE([LIBC_IS_BORKED], 1, [libc is broken for regex handling])
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dnl Set the programming language for checks. Fortunately,
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dnl this only needs to be set once, since everything is in C.
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dnl initialize GNU gettext
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AM_GNU_GETTEXT([external])
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AM_GNU_GETTEXT_VERSION([0.20.2])
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AM_GNU_GETTEXT_VERSION([0.18.1])
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AM_LANGINFO_CODESET
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dnl checks for header files
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AC_CHECK_HEADERS(arpa/inet.h fcntl.h locale.h libintl.h mcheck.h \
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netdb.h netinet/in.h stddef.h string.h \
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sys/ioctl.h sys/param.h sys/select.h sys/socket.h sys/time.h unistd.h \
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AC_CHECK_HEADERS(arpa/inet.h fcntl.h limits.h locale.h libintl.h mcheck.h \
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netdb.h netinet/in.h stdarg.h stddef.h string.h \
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sys/ioctl.h sys/param.h sys/socket.h sys/time.h unistd.h \
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termios.h stropts.h wchar.h wctype.h)
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AC_HEADER_SYS_WAIT
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AC_CHECK_HEADERS_ONCE([sys/time.h])
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if test "$ac_cv_header_string_h" = yes
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AC_CHECK_SIZEOF(unsigned int)
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AC_CHECK_SIZEOF(unsigned long)
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dnl see if time_t is defined in <sys/types.h>
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>]], [[
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AC_TRY_COMPILE([#include <sys/types.h>],[
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]])],[AC_DEFINE(TIME_T_IN_SYS_TYPES_H, 1,
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some systems define this type here)],[])
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AC_DEFINE(TIME_T_IN_SYS_TYPES_H, 1,
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[some systems define this type here]))
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dnl check for wctype_t in <wctype.h>
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <wctype.h>]], [[
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AC_TRY_COMPILE([#include <wctype.h>],[
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]])],[AC_DEFINE(HAVE_WCTYPE_T, 1, systems should define this type here)],[])
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AC_DEFINE(HAVE_WCTYPE_T, 1, [systems should define this type here]))
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dnl check for wint_t in <wctype.h>
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <wctype.h>]], [[
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AC_TRY_COMPILE([#include <wctype.h>],[
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]])],[AC_DEFINE(HAVE_WINT_T, 1, systems should define this type here)],[])
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AC_DEFINE(HAVE_WINT_T, 1, [systems should define this type here]))
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dnl check for sockaddr_storage
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
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#include <sys/socket.h>]], [[
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AC_TRY_COMPILE([#include <sys/types.h>
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#include <sys/socket.h>],[
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struct sockaddr_storage foo;
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]])],[AC_DEFINE(HAVE_SOCKADDR_STORAGE, 1, newer systems define this type here)],[])
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AC_DEFINE(HAVE_SOCKADDR_STORAGE, 1, [newer systems define this type here]))
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dnl Borrwed from rsync, thanks to to Jim Meyering.
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# Systems have either "struct sockaddr *" or
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# "void *" as the second argument to getpeername
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rsync_cv_socklen_t_equiv=
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for arg2 in "struct sockaddr" void
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for t in int size_t unsigned long "unsigned long"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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for arg2 in "struct sockaddr" void; do
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for t in int size_t unsigned long "unsigned long"; do
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#include <sys/types.h>
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#include <sys/socket.h>
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int getpeername (int, $arg2 *, $t *);
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getpeername(0,0,&len);
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rsync_cv_socklen_t_equiv="$t"
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if test "$rsync_cv_socklen_t_equiv" = ""
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if test "x$rsync_cv_socklen_t_equiv" = x; then
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dnl Some systems get this. Default to int. -- ADR
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dnl AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
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rsync_cv_socklen_t_equiv=int
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[AC_DEFINE(HAVE_GETADDRINFO, 1,
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[have getaddrinfo])])])
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AC_SEARCH_LIBS(fmod, m)
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AC_SEARCH_LIBS(isinf, m)
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AC_SEARCH_LIBS(ismod, m)
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AC_SEARCH_LIBS(isnan, m)
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AC_CHECK_LIB(m, fmod)
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AC_CHECK_LIB(m, isinf)
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AC_CHECK_LIB(m, ismod)
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dnl Don't look for libsigsegv on OSF/1, gives us severe headaches
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# Need the check for mkstemp and tmpfile for missing_d/snprintf.c.
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AC_CHECK_FUNCS(__etoa_l atexit btowc fmod fwrite_unlocked gai_strerror \
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getgrent getgroups grantpt isascii isblank iswctype iswlower iswupper \
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gettimeofday clock_gettime lstat \
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mbrlen memcmp memcpy memmove memset \
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mkstemp mtrace posix_openpt setenv setlocale setsid sigprocmask \
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snprintf strcasecmp strchr strcoll strerror strftime strncasecmp \
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strsignal strtod strtoul system timegm tmpfile towlower towupper \
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tzset usleep waitpid wcrtomb wcscoll wctype)
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AC_CHECK_FUNCS(atexit btowc fmod getgrent getgroups grantpt \
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isascii iswctype iswlower iswupper mbrlen \
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memcmp memcpy memcpy_ulong memmove memset \
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memset_ulong mkstemp posix_openpt setenv setlocale setsid snprintf strchr \
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strerror strftime strncasecmp strcoll strtod strtoul \
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system tmpfile towlower towupper tzset usleep wcrtomb \
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dnl this check is for both mbrtowc and the mbstate_t type, which is good
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dnl check if we can use the persistent memory allocator
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GAWK_USE_PERSISTENT_MALLOC
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dnl check for dynamic linking
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dnl This is known to be very primitive
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AC_ARG_ENABLE([extensions],
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[AS_HELP_STRING([--disable-extensions], [disable dynamic extensions (default is detect)])])
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if test "$enable_extensions" != "no"
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if test "x$enable_extensions" != "xno"; then
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extensions_supported=no
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dnl On MirBSD (and probably other systems), don't even try.
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mirbsd* | openedition*) # OS/390 z/OS POSIX layer
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cat << \EOF > extension/Makefile
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all dist check clean distclean install uninstall distcheck:
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AC_CHECK_HEADER(dlfcn.h,
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extensions_supported=yes
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AC_DEFINE([DYNAMIC], 1, [dynamic loading is possible])
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# Add -export-dynamic for old extensions. Only works for GCC
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if test "$GCC" = yes; then
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LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
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if test "$enable_extensions$extensions_supported" = "yesno"
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if test "x$enable_extensions$extensions_supported" = "xyesno"; then
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AC_MSG_ERROR([extension support requested, but unavailable])
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enable_extensions=$extensions_supported
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AM_CONDITIONAL([ENABLE_EXTENSIONS], [test "$enable_extensions" = "yes"])
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dnl check for how to use getpgrp
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dnl have to hardwire it for VMS POSIX. Sigh.
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has_f_format=no dnl Cross-compiling, assuming the worst.
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if test "$has_f_format" = yes
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if test "$has_f_format" = yes; then
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AC_DEFINE(PRINTF_HAS_F_FORMAT, 1, [Define to 1 if *printf supports %F format])
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AC_MSG_RESULT($has_f_format)
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dnl check for printf %a format
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AC_MSG_CHECKING([for printf %a format])
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sprintf(buf, "%a", 8.0);
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if (strncmp(buf, "0x", 2) == 0)
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has_a_format=no dnl Cross-compiling, assuming the worst.
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if test "$has_a_format" = yes
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AC_DEFINE(PRINTF_HAS_A_FORMAT, 1, [Define to 1 if *printf supports %a format])
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AC_MSG_RESULT($has_a_format)
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dnl check for sockets
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GAWK_AC_LIB_SOCKETS
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GAWK_CHECK_READLINE
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dnl check for mpfr support
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dnl checks for structure members
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AC_CHECK_MEMBERS([struct stat.st_blksize])
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AC_CHECK_MEMBERS([struct passwd.pw_passwd],,,[
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#include <sys/types.h>
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AC_CHECK_MEMBERS([struct group.gr_passwd],,,[
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#include <sys/types.h>
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AC_STRUCT_TIMEZONE
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AC_SUBST(GAWKLIBEXT)
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AC_CONFIG_FILES([Makefile
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AC_CONFIG_FILES(Makefile
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AC_CONFIG_FILES([gawkbug], [chmod +x gawkbug])
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if test "$enable_extensions" = "yes"
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if test "x$enable_extensions" = "xyes"; then
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AC_CONFIG_SUBDIRS(extension)
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if test "$GCC" = yes &&
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test -f $srcdir/.developing &&
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grep -i '^debug$' $srcdir/.developing > /dev/null
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if grep -i '^yaccdebug$' $srcdir/.developing > /dev/null
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for i in awkgram command
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sed -e '/-O2/s///' -e '/^CFLAGS = /s//&${DEBUG} /' $i/Makefile > foo
added
removed
configure.ac
