| version 1.1.1.1.2.1, 2020/04/03 23:39:54 |
version 1.1.1.1.2.2, 2020/04/13 07:56:43 |
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dnl -*- Autoconf -*- |
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dnl Process this file with autoconf to produce a configure script. |
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dnl |
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dnl Copyright (C) 2019-2020 Free Software Foundation, Inc. |
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dnl |
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dnl This file is free software; you can redistribute it and/or modify |
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dnl it under the terms of the GNU General Public License as published by |
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dnl the Free Software Foundation; either version 2 of the License, or |
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dnl (at your option) any later version. |
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dnl |
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dnl This program is distributed in the hope that it will be useful, |
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of |
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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dnl GNU General Public License for more details. |
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dnl |
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dnl You should have received a copy of the GNU General Public License |
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dnl along with this program; see the file COPYING. If not see |
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dnl <http://www.gnu.org/licenses/>. |
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dnl |
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|
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AC_PREREQ(2.64) |
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AC_INIT([libctf library], 1.2.0-pre) |
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AC_CONFIG_SRCDIR(ctf-impl.h) |
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AC_CONFIG_MACRO_DIR(../config) |
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AC_CONFIG_MACRO_DIR(../bfd) |
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AC_USE_SYSTEM_EXTENSIONS |
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AM_INIT_AUTOMAKE |
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|
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# Checks for programs. |
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AC_PROG_MAKE_SET |
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AC_PROG_CC |
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AC_PROG_RANLIB |
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AM_PROG_AR |
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|
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dnl Default to a non shared library. This may be overridden by the |
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dnl configure option --enable-shared. |
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AC_DISABLE_SHARED |
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|
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LT_INIT |
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AC_SYS_LARGEFILE |
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|
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MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing |
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AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal]) |
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AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf]) |
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AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader]) |
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|
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# Figure out what compiler warnings we can enable. |
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# See config/warnings.m4 for details. |
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|
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ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wno-narrowing -Wwrite-strings \ |
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-Wmissing-format-attribute], [warn]) |
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ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \ |
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-Wold-style-definition], [c_warn]) |
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ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long]) |
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|
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# Only enable with --enable-werror-always until existing warnings are |
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# corrected. |
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ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual]) |
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|
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AM_MAINTAINER_MODE |
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AM_INSTALL_LIBBFD |
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ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_libctf_warn_cflags]) |
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|
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AC_FUNC_MMAP |
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# Needed for BFD capability checks. |
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AC_SEARCH_LIBS(dlopen, dl) |
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AM_ZLIB |
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|
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# Similar to GDB_AC_CHECK_BFD. |
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OLD_CFLAGS=$CFLAGS |
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OLD_LDFLAGS=$LDFLAGS |
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OLD_LIBS=$LIBS |
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# Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS |
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# points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We |
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# always want our bfd. |
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CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS" |
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ZLIBDIR=`echo $zlibdir | sed 's,\$(top_builddir)/,,g'` |
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LDFLAGS="-L../bfd -L../libiberty $ZLIBDIR $LDFLAGS" |
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intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'` |
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LIBS="-lbfd -liberty -lz $intl $LIBS" |
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AC_CACHE_CHECK([for ELF support in BFD], ac_cv_libctf_bfd_elf, |
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[AC_TRY_LINK([#include <stdlib.h> |
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#include "bfd.h" |
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#include "elf-bfd.h"], |
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[(void) bfd_section_from_elf_index (NULL, 0); |
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return 0;], |
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[ac_cv_libctf_bfd_elf=yes], |
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[ac_cv_libctf_bfd_elf=no])]) |
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CFLAGS=$OLD_CFLAGS |
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LDFLAGS=$OLD_LDFLAGS |
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LIBS=$OLD_LIBS |
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|
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if test $ac_cv_libctf_bfd_elf = yes; then |
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AC_DEFINE([HAVE_BFD_ELF], 1, |
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[Whether libbfd was configured for an ELF target.]) |
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fi |
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|
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AC_C_BIGENDIAN |
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AC_CHECK_HEADERS(byteswap.h endian.h) |
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AC_CHECK_FUNCS(pread) |
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|
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AC_CHECK_DECLS([asprintf]) |
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|
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dnl Check for qsort_r. (Taken from gnulib.) |
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AC_CHECK_FUNCS_ONCE([qsort_r]) |
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if test $ac_cv_func_qsort_r = yes; then |
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AC_CACHE_CHECK([for qsort_r signature], [ac_cv_libctf_qsort_r_signature], |
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[AC_LINK_IFELSE( |
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[AC_LANG_PROGRAM([[#undef qsort_r |
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#include <stdlib.h> |
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void qsort_r (void *, size_t, size_t, |
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int (*) (void const *, void const *, |
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void *), |
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void *); |
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void (*p) (void *, size_t, size_t, |
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int (*) (void const *, void const *, |
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void *), |
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void *) = qsort_r; |
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]])], |
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[ac_cv_libctf_qsort_r_signature=GNU], |
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[AC_LINK_IFELSE( |
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[AC_LANG_PROGRAM([[#undef qsort_r |
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#include <stdlib.h> |
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void qsort_r (void *, size_t, size_t, void *, |
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int (*) (void *, |
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void const *, |
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void const *)); |
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void (*p) (void *, size_t, size_t, void *, |
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int (*) (void *, void const *, |
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void const *)) = qsort_r; |
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]])], |
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[ac_cv_libctf_qsort_r_signature=BSD], |
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[ac_cv_libctf_qsort_r_signature=unknown])])]) |
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fi |
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|
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case x$ac_cv_libctf_qsort_r_signature in |
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xGNU) AC_DEFINE([HAVE_QSORT_R_ARG_LAST], 1, |
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[Whether a qsort_r exists with a void *arg as its last arg.]);; |
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xBSD) AC_DEFINE([HAVE_QSORT_R_COMPAR_LAST], 1, |
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[Whether a qsort_r exists with the compar function as its last arg.]);; |
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*) ac_cv_libctf_qsort_r_signature=unknown;; |
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esac |
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|
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AM_CONDITIONAL(NEED_CTF_QSORT_R, test "${ac_cv_libctf_qsort_r_signature}" = unknown) |
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|
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AC_CACHE_CHECK([for O_CLOEXEC], [ac_cv_libctf_macro_O_CLOEXEC], |
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[AC_LINK_IFELSE( |
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[AC_LANG_PROGRAM([[#include <fcntl.h> |
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#ifndef O_CLOEXEC |
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choke me; |
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#endif |
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]], |
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[[return O_CLOEXEC;]])], |
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[ac_cv_libctf_macro_O_CLOEXEC=yes], |
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[ac_cv_libctf_macro_O_CLOEXEC=no])]) |
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|
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if test $ac_cv_libctf_macro_O_CLOEXEC = yes; then |
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AC_DEFINE([HAVE_O_CLOEXEC], 1, |
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[Whether the platform has a definition of O_CLOEXEC.]) |
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fi |
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|
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# Horrible hacks to build DLLs on Windows and a shared library elsewhere. |
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SHARED_LIBADD= |
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SHARED_LDFLAGS= |
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BFD_LIBADD= |
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BFD_DEPENDENCIES= |
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if test "$enable_shared" = "yes"; then |
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# When building a shared libctf, link against the pic version of libiberty |
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# so that apps that use libctf won't need libiberty just to satisfy any |
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# libctf references. |
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# We can't do that if a pic libiberty is unavailable since including non-pic |
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# code would insert text relocations into libctf. |
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# Note that linking against libbfd as we do here, which is itself linked |
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# against libiberty, may not satisfy all the libctf libiberty references |
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# since libbfd may not pull in the entirety of libiberty. |
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changequote(,)dnl |
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x=`sed -n -e 's/^[ ]*PICFLAG[ ]*=[ ]*//p' < ../libiberty/Makefile | sed -n '$p'` |
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changequote([,])dnl |
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if test -n "$x"; then |
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SHARED_LIBADD="-L`pwd`/../libiberty/pic -liberty" |
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fi |
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|
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case "${host}" in |
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# More hacks to build DLLs on Windows. |
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*-*-cygwin*) |
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SHARED_LDFLAGS="-no-undefined" |
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SHARED_LIBADD="-L`pwd`/../libiberty -liberty -L`pwd`/../intl -lintl -lcygwin" |
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BFD_LIBADD="-L`pwd`/../bfd -lbfd" |
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;; |
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|
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*-*-darwin*) |
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BFD_LIBADD="-Wl,`pwd`/../bfd/.libs/libbfd.dylib" |
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BFD_DEPENDENCIES="../bfd/libbfd.la" |
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;; |
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*) |
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case "$host_vendor" in |
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hp) |
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BFD_LIBADD="-Wl,`pwd`/../bfd/.libs/libbfd.sl" |
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;; |
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*) |
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BFD_LIBADD="-Wl,`pwd`/../bfd/.libs/libbfd.so" |
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;; |
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esac |
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BFD_DEPENDENCIES="../bfd/libbfd.la" |
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;; |
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esac |
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fi |
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AC_SUBST(SHARED_LDFLAGS) |
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AC_SUBST(SHARED_LIBADD) |
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AC_SUBST(BFD_LIBADD) |
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AC_SUBST(BFD_DEPENDENCIES) |
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|
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# Use a version script, if possible, or an -export-symbols-regex otherwise. |
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VERSION_FLAGS='-export-symbols-regex ctf_.*' |
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if $LD --help 2>&1 | grep -- --version-script >/dev/null; then |
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VERSION_FLAGS="-Wl,--version-script='$srcdir/libctf.ver'" |
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fi |
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AC_SUBST(VERSION_FLAGS) |
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|
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AC_CONFIG_FILES(Makefile) |
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AC_CONFIG_HEADERS(config.h) |
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AC_OUTPUT |
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