# configure.ac - for libksba
# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
# 2010, 2011, 2012 g10 Code GmbH
#
# This file is part of KSBA
#
# KSBA 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.
#
# KSBA 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/>.
# Process this file with autoconf to produce a configure script.
AC_PREREQ(2.61)
min_automake_version="1.14"
# To build a release you need to create a tag with the version number
# (git tag -s libksba-n.m.k) and run "./autogen.sh --force". Please
# bump the version number immediately after the release and do another
# commit and push so that the git magic is able to work. See below
# for the LT versions.
m4_define([mym4_package],[libksba])
m4_define([mym4_major], [1])
m4_define([mym4_minor], [3])
m4_define([mym4_micro], [5])
# Below is m4 magic to extract and compute the git revision number,
# the decimalized short revision number, a beta version string and a
# flag indicating a development version (mym4_isbeta). Note that the
# m4 processing is done by autoconf and not during the configure run.
m4_define([mym4_verslist], m4_split(m4_esyscmd([./autogen.sh --find-version] \
mym4_package mym4_major mym4_minor mym4_micro),[:]))
m4_define([mym4_isbeta], m4_argn(2, mym4_verslist))
m4_define([mym4_version], m4_argn(4, mym4_verslist))
m4_define([mym4_revision], m4_argn(7, mym4_verslist))
m4_define([mym4_revision_dec], m4_argn(8, mym4_verslist))
m4_esyscmd([echo ]mym4_version[>VERSION])
AC_INIT([mym4_package],[mym4_version], [http://bugs.gnupg.org])
# LT Version numbers: Remember to change them just *before* a release.
# (Interfaces removed: CURRENT++, AGE=0, REVISION=0)
# (Interfaces added: CURRENT++, AGE++, REVISION=0)
# (No interfaces changed: REVISION++)
# Please remember to document interface changes in the NEWS file.
LIBKSBA_LT_CURRENT=19
LIBKSBA_LT_AGE=11
LIBKSBA_LT_REVISION=6
#-------------------
# If the API is changed in an incompatible way: increment the next counter.
KSBA_CONFIG_API_VERSION=1
NEED_GPG_ERROR_VERSION=1.8
PACKAGE=$PACKAGE_NAME
VERSION=$PACKAGE_VERSION
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_SRCDIR([src/ksba.h])
AM_INIT_AUTOMAKE([serial-tests dist-bzip2 no-dist-gzip])
AM_CONFIG_HEADER(config.h)
AC_CONFIG_MACRO_DIR([m4])
AC_CANONICAL_HOST
AB_INIT
AC_GNU_SOURCE
LT_PREREQ([2.2.6])
LT_INIT([win32-dll disable-static])
LT_LANG([Windows Resource])
AM_MAINTAINER_MODE
AC_SUBST(LIBKSBA_LT_CURRENT)
AC_SUBST(LIBKSBA_LT_AGE)
AC_SUBST(LIBKSBA_LT_REVISION)
AC_SUBST(PACKAGE)
AC_SUBST(VERSION)
AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package])
AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version of this package])
AH_TOP([
#ifndef _KSBA_CONFIG_H_INCLUDED
#define _KSBA_CONFIG_H_INCLUDED
/* Enable gpg-error's strerror macro for W32CE. */
#define GPG_ERR_ENABLE_ERRNO_MACROS 1
])
AH_BOTTOM([
#endif /*_KSBA_CONFIG_H_INCLUDED*/
])
# Checks for programs.
missing_dir=`cd $ac_aux_dir && pwd`
AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
AM_SILENT_RULES
AC_PROG_AWK
AC_PROG_CC
AC_PROG_CPP
AM_PROG_CC_C_O
if test "x$ac_cv_prog_cc_c89" = "xno" ; then
AC_MSG_ERROR([[No C-89 compiler found]])
fi
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
gl_EARLY
#AC_ARG_PROGRAM
AC_PROG_YACC
AC_C_INLINE
# We need to compile and run a program on the build machine.
# The AC_PROG_CC_FOR_BUILD macro in the AC archive is broken for
# autoconf 2.57.
AC_MSG_CHECKING(for cc for build)
if test "$cross_compiling" = "yes"; then
CC_FOR_BUILD="${CC_FOR_BUILD-cc}"
else
CC_FOR_BUILD="${CC_FOR_BUILD-$CC}"
fi
AC_MSG_RESULT($CC_FOR_BUILD)
AC_ARG_VAR(CC_FOR_BUILD,[build system C compiler])
# This is handy for debugging so the compiler doesn't rearrange
# things and eliminate variables.
AC_ARG_ENABLE(optimization,
AC_HELP_STRING([--disable-optimization],
[disable compiler optimization]),
[if test $enableval = no ; then
CFLAGS=`echo $CFLAGS | sed 's/-O[[0-9]]//'`
fi])
if test "$GCC" = yes; then
CFLAGS="$CFLAGS -Wall -Wcast-align -Wshadow -Wstrict-prototypes"
if test "$USE_MAINTAINER_MODE" = "yes"; then
CFLAGS="$CFLAGS -Wformat -Wno-format-y2k -Wformat-security"
# We use -W only if -Wno-missing-field-initializers is supported.
# -W is important because it detects errors like "if (foo);"
AC_MSG_CHECKING([if gcc supports -Wno-missing-field-initializers])
_gcc_cflags_save=$CFLAGS
CFLAGS="-Wno-missing-field-initializers"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_wopt=yes,_gcc_wopt=no)
AC_MSG_RESULT($_gcc_wopt)
CFLAGS=$_gcc_cflags_save;
if test x"$_gcc_wopt" = xyes ; then
CFLAGS="$CFLAGS -W -Wno-sign-compare -Wno-missing-field-initializers"
fi
AC_MSG_CHECKING([if gcc supports -Wdeclaration-after-statement])
_gcc_cflags_save=$CFLAGS
CFLAGS="-Wdeclaration-after-statement"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_wopt=yes,_gcc_wopt=no)
AC_MSG_RESULT($_gcc_wopt)
CFLAGS=$_gcc_cflags_save;
if test x"$_gcc_wopt" = xyes ; then
CFLAGS="$CFLAGS -Wdeclaration-after-statement"
fi
fi
AC_MSG_CHECKING([if gcc supports -Wpointer-arith])
_gcc_cflags_save=$CFLAGS
CFLAGS="-Wpointer-arith"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_wopt=yes,_gcc_wopt=no)
AC_MSG_RESULT($_gcc_wopt)
CFLAGS=$_gcc_cflags_save;
if test x"$_gcc_wopt" = xyes ; then
CFLAGS="$CFLAGS -Wpointer-arith"
fi
AC_MSG_CHECKING([if gcc supports -Wno-pointer-sign])
_gcc_cflags_save=$CFLAGS
CFLAGS="-Wno-pointer-sign"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_psign=yes,_gcc_psign=no)
AC_MSG_RESULT($_gcc_psign)
CFLAGS=$_gcc_cflags_save;
if test x"$_gcc_psign" = xyes ; then
CFLAGS="$CFLAGS -Wno-pointer-sign"
fi
fi
# Setup some stuff depending on host.
have_w32_system=no
have_w32ce_system=no
case "${host}" in
*-*-mingw32ce*)
have_w32_system=yes
have_w32ce_system=yes
;;
*-*-mingw32*)
have_w32_system=yes
;;
*)
;;
esac
if test "$have_w32_system" = yes; then
AC_DEFINE(HAVE_W32_SYSTEM,1, [Defined if we run on a W32 API based system])
if test "$have_w32ce_system" = yes; then
AC_DEFINE(HAVE_W32CE_SYSTEM,1,[Defined if we run on WindowsCE])
fi
fi
AM_CONDITIONAL(HAVE_W32_SYSTEM, test "$have_w32_system" = yes)
AM_CONDITIONAL(HAVE_W32CE_SYSTEM, test "$have_w32ce_system" = yes)
# For some systems we know that we have ld_version scripts.
# Use it then as default.
have_ld_version_script=no
case "${host}" in
*-*-linux*)
have_ld_version_script=yes
;;
*-*-gnu*)
have_ld_version_script=yes
;;
esac
AC_ARG_ENABLE([ld-version-script],
AC_HELP_STRING([--enable-ld-version-script],
[enable/disable use of linker version script.
(default is system dependent)]),
[have_ld_version_script=$enableval],
[ : ] )
AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
#
# Check for ELF visibility support.
#
AC_CACHE_CHECK(whether the visibility attribute is supported,
ksba_cv_visibility_attribute,
[ksba_cv_visibility_attribute=no
AC_LANG_CONFTEST([AC_LANG_SOURCE(
[[int foo __attribute__ ((visibility ("hidden"))) = 1;
int bar __attribute__ ((visibility ("protected"))) = 1;
]])])
if ${CC-cc} -Werror -S conftest.c -o conftest.s \
1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD ; then
if grep '\.hidden.*foo' conftest.s >/dev/null 2>&1 ; then
if grep '\.protected.*bar' conftest.s >/dev/null 2>&1; then
ksba_cv_visibility_attribute=yes
fi
fi
fi
])
if test "$ksba_cv_visibility_attribute" = "yes"; then
AC_CACHE_CHECK(for broken visibility attribute,
ksba_cv_broken_visibility_attribute,
[ksba_cv_broken_visibility_attribute=yes
AC_LANG_CONFTEST([AC_LANG_SOURCE(
[[int foo (int x);
int bar (int x) __asm__ ("foo")
__attribute__ ((visibility ("hidden")));
int bar (int x) { return x; }
]])])
if ${CC-cc} -Werror -S conftest.c -o conftest.s \
1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD ; then
if grep '\.hidden@<:@ _@:>@foo' conftest.s >/dev/null 2>&1;
then
ksba_cv_broken_visibility_attribute=no
fi
fi
])
fi
if test "$ksba_cv_visibility_attribute" = "yes"; then
AC_CACHE_CHECK(for broken alias attribute,
ksba_cv_broken_alias_attribute,
[ksba_cv_broken_alias_attribute=yes
AC_LANG_CONFTEST([AC_LANG_SOURCE(
[[extern int foo (int x) __asm ("xyzzy");
int bar (int x) { return x; }
extern __typeof (bar) foo __attribute ((weak, alias ("bar")));
extern int dfoo;
extern __typeof (dfoo) dfoo __asm ("abccb");
int dfoo = 1;
]])])
if ${CC-cc} -Werror -S conftest.c -o conftest.s \
1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD ; then
if grep 'xyzzy' conftest.s >/dev/null 2>&1 && \
grep 'abccb' conftest.s >/dev/null 2>&1; then
ksba_cv_broken_alias_attribute=no
fi
fi
])
fi
if test "$ksba_cv_visibility_attribute" = "yes"; then
AC_CACHE_CHECK(if gcc supports -fvisibility=hidden,
ksba_cv_gcc_has_f_visibility,
[ksba_cv_gcc_has_f_visibility=no
_gcc_cflags_save=$CFLAGS
CFLAGS="-fvisibility=hidden"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],
ksba_cv_gcc_has_f_visibility=yes)
CFLAGS=$_gcc_cflags_save;
])
fi
if test "$ksba_cv_visibility_attribute" = "yes" \
&& test "$ksba_cv_broken_visibility_attribute" != "yes" \
&& test "$ksba_cv_broken_alias_attribute" != "yes" \
&& test "$ksba_cv_gcc_has_f_visibility" = "yes"
then
AC_DEFINE(KSBA_USE_VISIBILITY, 1,
[Define to use the GNU C visibility attribute.])
CFLAGS="$CFLAGS -fvisibility=hidden"
fi
#
# Checks for libraries.
#
AM_PATH_GPG_ERROR("$NEED_GPG_ERROR_VERSION")
if test "x$GPG_ERROR_LIBS" = "x"; then
AC_MSG_ERROR([libgpg-error is needed.
See ftp://ftp.gnupg.org/gcrypt/libgpg-error/ .])
fi
AC_DEFINE(GPG_ERR_SOURCE_DEFAULT, GPG_ERR_SOURCE_KSBA,
[The default error source for libksba.])
# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([string.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_BIGENDIAN
AC_CHECK_SIZEOF(unsigned int)
AC_CHECK_SIZEOF(unsigned long)
GNUPG_CHECK_TYPEDEF(u32, HAVE_U32_TYPEDEF)
# Checks for library functions.
AC_CHECK_FUNCS([memmove strchr strtol strtoul stpcpy gmtime_r getenv])
# GNUlib checks
gl_SOURCE_BASE(gl)
gl_M4_BASE(gl/m4)
gl_MODULES(alloca valgrind-tests)
gl_INIT
# To be used in ksba-config
KSBA_CONFIG_LIBS="-lksba"
KSBA_CONFIG_CFLAGS=""
KSBA_CONFIG_HOST="$host"
AC_SUBST(KSBA_CONFIG_LIBS)
AC_SUBST(KSBA_CONFIG_CFLAGS)
AC_SUBST(KSBA_CONFIG_API_VERSION)
AC_SUBST(KSBA_CONFIG_HOST)
# The Makefiles need to know about cross compiling
AM_CONDITIONAL(CROSS_COMPILING, test x$cross_compiling != xno)
# Generate extended version information for W32.
if test "$have_w32_system" = yes; then
changequote(,)dnl
BUILD_FILEVERSION=`echo "$VERSION" | sed 's/\([0-9.]*\).*/\1./;s/\./,/g'`
changequote([,])dnl
BUILD_FILEVERSION="${BUILD_FILEVERSION}mym4_revision_dec"
fi
AC_SUBST(BUILD_REVISION)
AC_SUBST(BUILD_FILEVERSION)
BUILD_REVISION="mym4_revision"
AC_SUBST(BUILD_REVISION)
AC_DEFINE_UNQUOTED(BUILD_REVISION, "$BUILD_REVISION",
[GIT commit id revision used to build this package])
AC_ARG_ENABLE([build-timestamp],
AC_HELP_STRING([--enable-build-timestamp],
[set an explicit build timestamp for reproducibility.
(default is the current time in ISO-8601 format)]),
[if test "$enableval" = "yes"; then
BUILD_TIMESTAMP=`date -u +%Y-%m-%dT%H:%M+0000 2>/dev/null || date`
else
BUILD_TIMESTAMP="$enableval"
fi],
[BUILD_TIMESTAMP="<none>"])
AC_SUBST(BUILD_TIMESTAMP)
AC_DEFINE_UNQUOTED(BUILD_TIMESTAMP, "$BUILD_TIMESTAMP",
[The time this package was configured for a build])
AC_CONFIG_FILES([
Makefile
m4/Makefile
gl/Makefile
src/Makefile
src/ksba-config
src/versioninfo.rc
tests/Makefile
doc/Makefile
])
AC_OUTPUT
echo "
Libksba v${VERSION} has been configured as follows:
Revision: mym4_revision (mym4_revision_dec)
Platform: $host
"