mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-18 14:53:32 +08:00
78eb490c2c
This dependency is managed via libtool. So explicit addition to LDFLAGS and LIBS is not necessary anymore. ChangeLog: * libctf/configure: Regenerated. * libctf/configure.ac: remove zlib from LDFLAGS and LIBS.
302 lines
11 KiB
Plaintext
302 lines
11 KiB
Plaintext
dnl -*- Autoconf -*-
|
|
dnl Process this file with autoconf to produce a configure script.
|
|
dnl
|
|
dnl Copyright (C) 2019-2022 Free Software Foundation, Inc.
|
|
dnl
|
|
dnl This file 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 2 of the License, or
|
|
dnl (at your option) any later version.
|
|
dnl
|
|
dnl This program 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; see the file COPYING. If not see
|
|
dnl <http://www.gnu.org/licenses/>.
|
|
dnl
|
|
|
|
AC_PREREQ(2.64)
|
|
AC_INIT([libctf], 1.2.0)
|
|
AC_CONFIG_SRCDIR(ctf-impl.h)
|
|
AC_CONFIG_MACRO_DIR(..)
|
|
AC_CONFIG_MACRO_DIR(../config)
|
|
AC_CONFIG_MACRO_DIR(../bfd)
|
|
AC_CANONICAL_BUILD
|
|
AC_CANONICAL_HOST
|
|
AC_CANONICAL_TARGET
|
|
AC_USE_SYSTEM_EXTENSIONS
|
|
AM_INIT_AUTOMAKE
|
|
AM_SILENT_RULES([yes])
|
|
|
|
# Checks for programs.
|
|
AC_PROG_MAKE_SET
|
|
AC_PROG_CC
|
|
AC_PROG_RANLIB
|
|
AM_PROG_AR
|
|
ZW_GNU_GETTEXT_SISTER_DIR
|
|
|
|
dnl Default to a non shared library. This may be overridden by the
|
|
dnl configure option --enable-shared.
|
|
AC_DISABLE_SHARED
|
|
|
|
LT_INIT
|
|
AC_SYS_LARGEFILE
|
|
LT_OUTPUT
|
|
|
|
MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
|
|
AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal])
|
|
AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])
|
|
AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
|
|
|
|
# Figure out what compiler warnings we can enable.
|
|
# See config/warnings.m4 for details.
|
|
|
|
ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wno-narrowing -Wwrite-strings \
|
|
-Wmissing-format-attribute], [warn])
|
|
ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \
|
|
-Wold-style-definition], [c_warn])
|
|
ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
|
|
|
|
# Only enable with --enable-werror-always until existing warnings are
|
|
# corrected.
|
|
ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
|
|
|
|
AM_MAINTAINER_MODE
|
|
AM_INSTALL_LIBBFD
|
|
ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_libctf_warn_cflags])
|
|
|
|
AC_FUNC_MMAP
|
|
# Needed for BFD capability checks.
|
|
AC_SEARCH_LIBS(dlsym, dl)
|
|
AM_ZLIB
|
|
AC_ZSTD
|
|
|
|
GCC_ENABLE([libctf-hash-debugging], [no], [], [Enable expensive debugging of CTF deduplication type hashing])
|
|
if test "${enable_libctf_hash_debugging}" = yes; then
|
|
AC_DEFINE(ENABLE_LIBCTF_HASH_DEBUGGING, 1, [Enable expensive debugging of CTF deduplication type hashing])
|
|
fi
|
|
AM_CONDITIONAL(ENABLE_LIBCTF_HASH_DEBUGGING, test "${enable_libctf_hash_debugging}" = yes)
|
|
|
|
# Similar to GDB_AC_CHECK_BFD.
|
|
OLD_CFLAGS=$CFLAGS
|
|
OLD_LDFLAGS=$LDFLAGS
|
|
OLD_LIBS=$LIBS
|
|
OLD_CC=$CC
|
|
# Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS
|
|
# points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We
|
|
# always want our bfd.
|
|
CC="./libtool --quiet --mode=link $OLD_CC"
|
|
CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"
|
|
LDFLAGS="-L../bfd -L../libiberty $LDFLAGS"
|
|
intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
|
|
LIBS="-lbfd -liberty $ZSTD_LIBS $intl $LIBS"
|
|
AC_CACHE_CHECK([for ELF support in BFD], ac_cv_libctf_bfd_elf,
|
|
[AC_TRY_LINK([#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "bfd.h"
|
|
#include "elf-bfd.h"],
|
|
[(void) bfd_section_from_elf_index (NULL, 0);
|
|
return 0;],
|
|
[ac_cv_libctf_bfd_elf=yes],
|
|
[ac_cv_libctf_bfd_elf=no])])
|
|
CFLAGS=$OLD_CFLAGS
|
|
LDFLAGS=$OLD_LDFLAGS
|
|
LIBS=$OLD_LIBS
|
|
CC=$OLD_CC
|
|
|
|
if test $ac_cv_libctf_bfd_elf = yes; then
|
|
AC_DEFINE([HAVE_BFD_ELF], 1,
|
|
[Whether libbfd was configured for an ELF target.])
|
|
fi
|
|
|
|
AC_C_BIGENDIAN
|
|
AC_CHECK_HEADERS(byteswap.h endian.h)
|
|
AC_CHECK_FUNCS(pread)
|
|
|
|
dnl Check for bswap_{16,32,64}
|
|
AC_CHECK_DECLS([bswap_16, bswap_32, bswap_64], [], [], [[#include <byteswap.h>]])
|
|
AC_CHECK_DECLS([asprintf, vasprintf, stpcpy])
|
|
|
|
dnl Check for qsort_r. (Taken from gnulib.)
|
|
AC_CHECK_FUNCS_ONCE([qsort_r])
|
|
if test $ac_cv_func_qsort_r = yes; then
|
|
AC_CACHE_CHECK([for qsort_r signature], [ac_cv_libctf_qsort_r_signature],
|
|
[AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM([[#undef qsort_r
|
|
#include <stdlib.h>
|
|
void qsort_r (void *, size_t, size_t,
|
|
int (*) (void const *, void const *,
|
|
void *),
|
|
void *);
|
|
void (*p) (void *, size_t, size_t,
|
|
int (*) (void const *, void const *,
|
|
void *),
|
|
void *) = qsort_r;
|
|
]])],
|
|
[ac_cv_libctf_qsort_r_signature=GNU],
|
|
[AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM([[#undef qsort_r
|
|
#include <stdlib.h>
|
|
void qsort_r (void *, size_t, size_t, void *,
|
|
int (*) (void *,
|
|
void const *,
|
|
void const *));
|
|
void (*p) (void *, size_t, size_t, void *,
|
|
int (*) (void *, void const *,
|
|
void const *)) = qsort_r;
|
|
]])],
|
|
[ac_cv_libctf_qsort_r_signature=BSD],
|
|
[ac_cv_libctf_qsort_r_signature=unknown])])])
|
|
fi
|
|
|
|
case x$ac_cv_libctf_qsort_r_signature in
|
|
xGNU) AC_DEFINE([HAVE_QSORT_R_ARG_LAST], 1,
|
|
[Whether a qsort_r exists with a void *arg as its last arg.]);;
|
|
xBSD) AC_DEFINE([HAVE_QSORT_R_COMPAR_LAST], 1,
|
|
[Whether a qsort_r exists with the compar function as its last arg.]);;
|
|
*) ac_cv_libctf_qsort_r_signature=unknown;;
|
|
esac
|
|
|
|
AM_CONDITIONAL(NEED_CTF_QSORT_R, test "${ac_cv_libctf_qsort_r_signature}" = unknown)
|
|
|
|
AC_CACHE_CHECK([for O_CLOEXEC], [ac_cv_libctf_macro_O_CLOEXEC],
|
|
[AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM([[#include <fcntl.h>
|
|
#ifndef O_CLOEXEC
|
|
choke me;
|
|
#endif
|
|
]],
|
|
[[return O_CLOEXEC;]])],
|
|
[ac_cv_libctf_macro_O_CLOEXEC=yes],
|
|
[ac_cv_libctf_macro_O_CLOEXEC=no])])
|
|
|
|
if test $ac_cv_libctf_macro_O_CLOEXEC = yes; then
|
|
AC_DEFINE([HAVE_O_CLOEXEC], 1,
|
|
[Whether the platform has a definition of O_CLOEXEC.])
|
|
fi
|
|
|
|
build_info=
|
|
makeinfo_too_old=
|
|
AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
|
|
case " $build_configdirs " in
|
|
*" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
|
|
esac
|
|
changequote(,)
|
|
# We require texinfo to be 6.3 or later, for a working synindex
|
|
# and validatemenus: otherwise we fall back to /bin/true.
|
|
if ${MAKEINFO} --version \
|
|
| egrep 'texinfo[^0-9]*(6\.[3-9]|[7-9][0-9])' >/dev/null 2>&1; then
|
|
build_info=yes
|
|
else
|
|
build_info=
|
|
makeinfo_too_old=t
|
|
fi
|
|
changequote([,])
|
|
if test -n "$makeinfo_too_old"; then
|
|
AC_MSG_WARN([
|
|
*** Makeinfo is too old. Info documentation will not be built.])
|
|
fi
|
|
AC_SUBST(MAKEINFO)
|
|
AM_CONDITIONAL(BUILD_INFO, test "${build_info}" = yes)
|
|
|
|
CTF_LIBADD="-L`pwd`/../libiberty -liberty"
|
|
SHARED_LDFLAGS=
|
|
|
|
# Horrible hacks to build DLLs on Windows and a shared library elsewhere.
|
|
if test "$enable_shared" = "yes"; then
|
|
# When building a shared libctf, link against the pic version of libiberty
|
|
# so that apps that use libctf won't need libiberty just to satisfy any
|
|
# libctf references. We can't do that if a pic libiberty is unavailable
|
|
# since including non-pic # code would insert text relocations into libctf.
|
|
# Note that linking against libbfd as we do here, which is itself linked
|
|
# against libiberty, may not satisfy all the libctf libiberty references
|
|
# since libbfd may not pull in the entirety of libiberty.
|
|
# Also, jam libintl into the right place in all of this: after libiberty,
|
|
# which uses it, but before -lcygwin, which it uses.
|
|
changequote(,)dnl
|
|
x=`sed -n -e 's/^[ ]*PICFLAG[ ]*=[ ]*//p' < ../libiberty/Makefile | sed -n '$p'`
|
|
changequote([,])dnl
|
|
if test -n "$x"; then
|
|
CTF_LIBADD="-L`pwd`/../libiberty/pic -liberty"
|
|
fi
|
|
fi
|
|
|
|
CTF_LIBADD="$CTF_LIBADD $LIBINTL"
|
|
|
|
if test "$enable_shared" = "yes"; then
|
|
case "${host}" in
|
|
# More hacks to build DLLs on Windows.
|
|
*-*-cygwin*)
|
|
SHARED_LDFLAGS="-no-undefined"
|
|
CTF_LIBADD="$CTF_LIBADD -lcygwin"
|
|
;;
|
|
esac
|
|
fi
|
|
AC_SUBST(SHARED_LDFLAGS)
|
|
AC_SUBST(CTF_LIBADD)
|
|
|
|
AC_PATH_PROG([EXPECT], [expect])
|
|
AC_CACHE_CHECK([for Tcl supporting try/catch], [ac_cv_libctf_tcl_try],
|
|
[ac_cv_libctf_tcl_try=`if test -z $EXPECT; then echo no; else $EXPECT << EOF
|
|
if @<:@llength @<:@info commands try@:>@@:>@ then { puts yes } else { puts no }
|
|
EOF
|
|
fi`
|
|
])
|
|
AM_CONDITIONAL(TCL_TRY, test "${ac_cv_libctf_tcl_try}" = yes)
|
|
|
|
# Use a version script, if possible, or an -export-symbols-regex otherwise.
|
|
decommented_version_script=
|
|
AC_CACHE_CHECK([for linker versioning flags], [ac_cv_libctf_version_script],
|
|
[echo 'FOO { global: mai*; local: ctf_fo*; };' > conftest.ver
|
|
old_LDFLAGS="$LDFLAGS"
|
|
old_CFLAGS="$CFLAGS"
|
|
LDFLAGS="$LDFLAGS -shared -Wl,--version-script=conftest.ver"
|
|
CFLAGS="$CFLAGS -fPIC"
|
|
AC_LINK_IFELSE([AC_LANG_SOURCE([[int ctf_foo (void) { return 0; }
|
|
int main (void) { return ctf_foo(); }]])],
|
|
[ac_cv_libctf_version_script="-Wl,--version-script='$srcdir/libctf.ver'"],
|
|
[])
|
|
LDFLAGS="$old_LDFLAGS"
|
|
|
|
if test -z "$ac_cv_libctf_version_script"; then
|
|
LDFLAGS="$LDFLAGS -shared -Wl,-B,local -Wl,-z,gnu-version-script=conftest.ver"
|
|
AC_LINK_IFELSE([AC_LANG_SOURCE([[int ctf_foo (void) { return 0; }
|
|
int main (void) { return ctf_foo(); }]])],
|
|
[ac_cv_libctf_version_script="-Wl,-B,local -Wl,-z,gnu-version-script"
|
|
decommented_version_script=t],
|
|
[])
|
|
LDFLAGS="$old_LDFLAGS"
|
|
fi
|
|
CFLAGS="$old_CFLAGS"
|
|
|
|
if test -z "$ac_cv_libctf_version_script"; then
|
|
ac_cv_libctf_version_script='-export-symbols-regex ctf_.*'
|
|
fi
|
|
rm -f conftest.ver])
|
|
if test -n "$decommented_version_script"; then
|
|
# Solaris's version scripts use shell-style comments rather than the C-style
|
|
# used by GNU ld. Use cpp to strip the comments out. (cpp exists under this
|
|
# name on all platforms that support ld -z gnu-version-script.)
|
|
# Also ensure that no symbols exist in the version script for libctf-nobfd.so
|
|
# that do not exist in the shared library itself, since some linkers add such
|
|
# symbols with type NOTYPE.
|
|
/lib/cpp < $srcdir/libctf.ver > libctf-decommented.ver
|
|
grep -v 'libctf only' $srcdir/libctf.ver | /lib/cpp > libctf-nobfd-decommented.ver
|
|
VERSION_FLAGS="$ac_cv_libctf_version_script='libctf-decommented.ver'"
|
|
VERSION_FLAGS_NOBFD="$ac_cv_libctf_version_script='libctf-nobfd-decommented.ver'"
|
|
else
|
|
VERSION_FLAGS="$ac_cv_libctf_version_script"
|
|
VERSION_FLAGS_NOBFD="$ac_cv_libctf_version_script"
|
|
fi
|
|
AC_SUBST(VERSION_FLAGS)
|
|
AC_SUBST(VERSION_FLAGS_NOBFD)
|
|
|
|
AC_CONFIG_FILES(Makefile)
|
|
AC_CONFIG_HEADERS(config.h)
|
|
AC_OUTPUT
|
|
|
|
GNU_MAKE_JOBSERVER
|