| dnl -*- Autoconf -*- |
| dnl Process this file with autoconf to produce a configure script. |
| dnl |
| dnl Copyright (C) 2019 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 library], 1.2.0-pre) |
| AC_CONFIG_SRCDIR(ctf-impl.h) |
| AC_CONFIG_MACRO_DIR(../config) |
| AC_USE_SYSTEM_EXTENSIONS |
| AM_INIT_AUTOMAKE |
| |
| # Checks for programs. |
| AC_PROG_MAKE_SET |
| AC_PROG_CC |
| AC_PROG_RANLIB |
| AM_PROG_AR |
| |
| AC_SYS_LARGEFILE |
| |
| 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 |
| ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_libctf_warn_cflags]) |
| |
| AC_FUNC_MMAP |
| AC_SEARCH_LIBS(dlopen, dl) |
| AM_ZLIB |
| |
| # Similar to GDB_AC_CHECK_BFD. |
| OLD_CFLAGS=$CFLAGS |
| OLD_LDFLAGS=$LDFLAGS |
| OLD_LIBS=$LIBS |
| # Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS |
| # points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We |
| # always want our bfd. |
| CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS" |
| ZLIBDIR=`echo $zlibdir | sed 's,\$(top_builddir)/,,g'` |
| LDFLAGS="-L../bfd -L../libiberty $ZLIBDIR $LDFLAGS" |
| intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'` |
| LIBS="-lbfd -liberty -lz $intl $LIBS" |
| AC_CACHE_CHECK([for ELF support in BFD], ac_cv_libctf_bfd_elf, |
| [AC_TRY_LINK([#include <stdlib.h> |
| #include "bfd.h" |
| #include "elf-bfd.h"], |
| [(void) bfd_section_from_elf_index (NULL, 0); |
| return 0;], |
| [ac_cv_libctf_bfd_elf=yes], |
| [ac_cv_libctf_bfd_elf=no])]) |
| CFLAGS=$OLD_CFLAGS |
| LDFLAGS=$OLD_LDFLAGS |
| LIBS=$OLD_LIBS |
| |
| 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 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 |
| |
| AC_CONFIG_FILES(Makefile) |
| AC_CONFIG_HEADERS(config.h) |
| AC_OUTPUT |
