X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Ftar;a=blobdiff_plain;f=configure.ac;h=3303c53eda219c6ae803b05458d14dc718ec89ad;hp=8225031c0bd4cfb766f8394845748a34aea43400;hb=dd549cc257c7ec9e0780f649ac8ae384a84baba0;hpb=4a3564fe85b15fc463b0b579bd12c6e7cf54eb73 diff --git a/configure.ac b/configure.ac index 8225031..3303c53 100644 --- a/configure.ac +++ b/configure.ac @@ -1,23 +1,21 @@ # Configure template for GNU tar. -*- autoconf -*- -# Copyright (C) 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, -# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free -# Software Foundation, Inc. +# Copyright 1991, 1994-2010, 2013 Free Software Foundation, Inc. -# This program is free software; you can redistribute it and/or modify +# This file is part of GNU tar. + +# GNU tar is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. -# This program is distributed in the hope that it will be useful, +# GNU tar is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -# 02110-1301, USA. +# along with this program. If not, see . AC_INIT([GNU tar], [1.26.90], [bug-tar@gnu.org]) AC_CONFIG_SRCDIR([src/tar.c]) @@ -78,13 +76,12 @@ AC_ARG_WITH([posix-acls], [do not use POSIX.1e access control lists]), [with_posix_acls=no]) if test "x$with_posix_acls" != "xno"; then - AC_CHECK_HEADERS(sys/acl.h,, [with_posix_acl=no]) - AC_SEARCH_LIBS([acl_get_file], [acl pacl],, [with_posix_acl=no]) - AC_SEARCH_LIBS([acl_get_fd], [acl pacl],, [with_posix_acl=no]) - AC_SEARCH_LIBS([acl_set_file], [acl pacl],, [with_posix_acl=no]) - AC_SEARCH_LIBS([acl_set_fd], [acl pacl],, [with_posix_acl=no]) - AC_SEARCH_LIBS([acl_to_text], [acl pacl],, [with_posix_acl=no]) - AC_SEARCH_LIBS([acl_from_text], [acl pacl],, [with_posix_acl=no]) + AC_CHECK_HEADERS(sys/acl.h,, [with_posix_acls=no]) + for tar_acl_func in acl_get_file acl_get_fd acl_set_file acl_set_fd \ + acl_to_text acl_from_text; do \ + test "x$with_posix_acls" = xno && break + AC_SEARCH_LIBS([$tar_acl_func], [acl pacl], [], [with_posix_acls=no]) + done if test "x$with_posix_acls" != xno; then AC_DEFINE(HAVE_POSIX_ACLS,,[Define when we have working POSIX acls]) fi @@ -113,6 +110,103 @@ gl_INIT # paxutils modules tar_PAXUTILS +# gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found]) +# ------------------------------------------------ +# If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND. +# Otherwise, run RUN-IF-NOT-FOUND. +AC_DEFUN([gl_GCC_VERSION_IFELSE], + [AC_PREPROC_IFELSE( + [AC_LANG_PROGRAM( + [[ +#if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__) +/* ok */ +#else +# error "your version of gcc is older than $1.$2" +#endif + ]]), + ], [$3], [$4]) + ] +) + +AC_ARG_ENABLE([gcc-warnings], + [AS_HELP_STRING([--enable-gcc-warnings], + [turn on many GCC warnings (for developers; best with GNU make)])], + [case $enableval in + yes|no) ;; + *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;; + esac + gl_gcc_warnings=$enableval], + [gl_gcc_warnings=no + if test -d "$srcdir"/.git; then + gl_GCC_VERSION_IFELSE([4], [6], [gl_gcc_warnings=yes]) + fi] +) + +if test "$gl_gcc_warnings" = yes; then + gl_WARN_ADD([-Werror], [WERROR_CFLAGS]) + AC_SUBST([WERROR_CFLAGS]) + + nw= + # This, $nw, is the list of warnings we disable. + nw="$nw -Wformat-nonliteral" # warnings in Fedora 17 stdio.h + nw="$nw -Wvla" # warnings in gettext.h + nw="$nw -Wswitch-default" # Too many warnings for now + nw="$nw -Wunsafe-loop-optimizations" # It's OK to omit unsafe optimizations. + nw="$nw -Winline" # It's OK to not inline. + nw="$nw -Wstrict-overflow" # It's OK to optimize strictly. + nw="$nw -Wsuggest-attribute=pure" # Too many warnings for now. + + gl_MANYWARN_ALL_GCC([ws]) + gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw]) + for w in $ws; do + gl_WARN_ADD([$w]) + done + gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now + gl_WARN_ADD([-Wno-type-limits]) # It's OK to optimize based on types. + gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now + gl_WARN_ADD([-Wno-format-nonliteral]) + + gl_WARN_ADD([-fdiagnostics-show-option]) + gl_WARN_ADD([-funit-at-a-time]) + + AC_SUBST([WARN_CFLAGS]) + + AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.]) + AH_VERBATIM([FORTIFY_SOURCE], + [/* Enable compile-time and run-time bounds-checking, and some warnings, + without upsetting glibc 2.15+. */ + #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__ + # define _FORTIFY_SOURCE 2 + #endif + ]) + AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks]) + + # Use a slightly smaller set of warning options for lib/. + # Remove the following and save the result in GNULIB_WARN_CFLAGS. + nw= + nw="$nw -Wmissing-prototypes" + nw="$nw -Wunused-macros" + # + # These are for argp. + nw="$nw -Wmissing-field-initializers" + nw="$nw -Wshadow" + # + gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw]) + + # This is also for argp. + gl_WARN_ADD([-Wno-missing-field-initializers], [GNULIB_WARN_CFLAGS]) + + AC_SUBST([GNULIB_WARN_CFLAGS]) + + # For gnulib-tests, the set is slightly smaller still. + nw= + # It's not worth being this picky about test programs. + nw="$nw -Wsuggest-attribute=const" + gl_MANYWARN_COMPLEMENT([GNULIB_TEST_WARN_CFLAGS], + [$GNULIB_WARN_CFLAGS], [$nw]) + AC_SUBST([GNULIB_TEST_WARN_CFLAGS]) +fi + TAR_HEADERS_ATTR_XATTR_H AC_CHECK_FUNCS_ONCE([fchmod fchown fsync lstat mkfifo readlink symlink])