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#
# configure.ac: this file is part of the elfix package
# Copyright (C) 2011 Anthony G. Basile
#
# This program 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 of the License, or
# (at your option) any later version.
#
# This program 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, see <http://www.gnu.org/licenses/>.
#
AC_PREREQ([2.68])
AC_INIT([elfix], [0.8.5], [http://bugs.gentoo.org/])
AC_CONFIG_SRCDIR([src/fix-gnustack.c])
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([1.12 foreign])
AM_SILENT_RULES([no])
LT_PREREQ([2.4])
LT_INIT([dlopen])
AC_CONFIG_MACRO_DIR([m4])
AC_ARG_ENABLE(
[tests],
AS_HELP_STRING(
[--enable-tests],
[perform tests]
),
[test "x$enable_tests" = "xyes"]
)
AM_CONDITIONAL([TEST],[test "x$enable_tests" = "xyes"])
# Checks for programs.
AC_PROG_AWK
AC_PROG_CC
AC_PROG_SED
# Checks for header files.
AC_CHECK_HEADERS(
[errno.h err.h fcntl.h gelf.h libgen.h stdio.h stdlib.h string.h \
sys/mman.h sys/stat.h sys/types.h unistd.h],
[],
[AC_MSG_ERROR(["Missing necessary header"])]
)
# Checks for DECLs.
AC_CHECK_DECL([ELF_C_RDWR_MMAP],[],[],[[#include <libelf.h>]])
AM_CONDITIONAL([BUILD_ELF],[test "x$ac_cv_have_decl_ELF_C_RDWR_MMAP" = "xyes"])
# Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
# Checks for library functions.
AC_FUNC_ERROR_AT_LINE
AC_FUNC_FORK
AC_FUNC_MMAP
AC_CHECK_FUNCS([memset strerror])
# Note: this is always needed for fix-gnustack
# and for paxctl-ng only with --enable-ptpax
AC_CHECK_LIB(
[elf],
[elf_begin],
[],
[AC_MSG_ERROR(["Missing necessary function elf_begin in libelf"])]
)
AC_ARG_ENABLE(
[ptpax],
AS_HELP_STRING(
[--enable-ptpax],
[enable support for pax markings in PT_PAX ELF phdr]
)
)
AS_IF(
[test "x$enable_ptpax" != "xno"],
[
AS_IF(
[test "x$ac_cv_have_decl_ELF_C_RDWR_MMAP" = "xyes"],
[
AC_CHECK_DECLS(
[PT_PAX_FLAGS, PF_PAGEEXEC, PF_MPROTECT, PF_RANDMMAP],
[],
[
CFLAGS+=" -DNEED_PAX_DECLS"
],
[[#include <gelf.h>]]
)
CFLAGS+=" -DPTPAX"
],
[AC_MSG_ERROR(["Missing necessary DECL ELF_C_RDWR_MMAP in libelf"])]
)
],
[
CFLAGS+=" -UPTPAX -DNEED_PAX_DECLS"
]
)
AC_ARG_ENABLE(
[xtpax],
AS_HELP_STRING(
[--enable-xtpax],
[enable support for pax markings in xattrs]
)
)
AS_IF(
[test "x$enable_xtpax" != "xno"],
[
AC_CHECK_HEADERS(
[attr/xattr.h],
[],
[AC_MSG_ERROR(["Missing necessary attr/xattr.h"])]
)
AC_CHECK_LIB(
[attr],
[fgetxattr],
[],
[AC_MSG_ERROR(["Missing necessary function fgetxattr in libattr"])]
)
CFLAGS+=" -DXTPAX"
],
[
CFLAGS+=" -UXTPAX"
]
)
if [test "x$enable_ptpax" = "xno" -a "x$enable_xtpax" = "xno" ]; then
AC_MSG_ERROR(["You must enable either ptpax or xtpax"])
fi
AM_CONDITIONAL([DUALTEST],[test "x$enable_ptpax" = "xyes" -a "x$enable_xtpax" = "xyes"])
# Ready to configure our files
AC_CONFIG_FILES([
Makefile
src/Makefile
scripts/Makefile
doc/Makefile
tests/Makefile
tests/gnustack/Makefile
tests/pxtpax/Makefile
tests/paxmodule/Makefile
tests/revdeppaxtest/Makefile
])
AC_OUTPUT
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