dnl -*- Autoconf -*-
dnl Process this file with autoconf to produce a configure script.
dnl
-dnl Copyright (C) 2019 Free Software Foundation, Inc.
+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
AC_PREREQ(2.64)
-AC_INIT([libctf library], 1.2.0-pre)
+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
MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
AM_MAINTAINER_MODE
+AM_INSTALL_LIBBFD
ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_libctf_warn_cflags])
AC_FUNC_MMAP
-AC_SEARCH_LIBS(dlopen, dl)
+# Needed for BFD capability checks.
+AC_SEARCH_LIBS(dlsym, dl)
AM_ZLIB
+GCC_ENABLE([libctf-hash-debugging], [no], [], [Enable expensive debugging of CTF deduplication type hashing])
+if test "${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
LIBS="-lbfd -liberty -lz $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);
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 $ac_cv_func_qsort_r = yes; then
AM_CONDITIONAL(NEED_CTF_QSORT_R, test "${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
projects / binutils-gdb.git / blobdiff