-dnl On the NeXT, #including <utime.h> doesn't give you a definition for
-dnl struct utime, unless you #define _POSIX_SOURCE.
-
-AC_DEFUN(GUILE_STRUCT_UTIMBUF, [
- AC_CACHE_CHECK([whether we need POSIX to get struct utimbuf],
- guile_cv_struct_utimbuf_needs_posix,
- [AC_TRY_CPP([
-#ifdef __EMX__
-#include <sys/utime.h>
-#else
-#include <utime.h>
-#endif
-struct utime blah;
-],
- guile_cv_struct_utimbuf_needs_posix=no,
- guile_cv_struct_utimbuf_needs_posix=yes)])
- if test "$guile_cv_struct_utimbuf_needs_posix" = yes; then
- AC_DEFINE(UTIMBUF_NEEDS_POSIX)
- fi])
-
-
-
-
-dnl
-dnl Apparently, at CMU they have a weird version of libc.h that is
-dnl installed in /usr/local/include and conflicts with unistd.h.
-dnl In these situations, we should not #include libc.h.
-dnl This test arranges to #define LIBC_H_WITH_UNISTD_H iff libc.h is
-dnl present on the system, and is safe to #include.
-dnl
-AC_DEFUN([GUILE_HEADER_LIBC_WITH_UNISTD],
- [
- AC_CHECK_HEADERS(libc.h unistd.h)
- AC_CACHE_CHECK(
- "whether libc.h and unistd.h can be included together",
- guile_cv_header_libc_with_unistd,
- [
- if test "$ac_cv_header_libc_h" = "no"; then
- guile_cv_header_libc_with_unistd="no"
- elif test "$ac_cv_header_unistd.h" = "no"; then
- guile_cv_header_libc_with_unistd="yes"
- else
- AC_TRY_COMPILE(
- [
-# include <libc.h>
-# include <unistd.h>
- ],
- [],
- [guile_cv_header_libc_with_unistd=yes],
- [guile_cv_header_libc_with_unistd=no]
- )
- fi
- ]
- )
- if test "$guile_cv_header_libc_with_unistd" = yes; then
- AC_DEFINE(LIBC_H_WITH_UNISTD_H)
- fi
- ]
-)
-
-
-
-dnl This is needed when we want to check for the same function repeatedly
-dnl with other parameters, such as libraries, varying.
-dnl
-dnl GUILE_NAMED_CHECK_FUNC(FUNCTION, TESTNAME,
-dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
-AC_DEFUN(GUILE_NAMED_CHECK_FUNC,
-[AC_MSG_CHECKING([for $1])
-AC_CACHE_VAL(ac_cv_func_$1_$2,
-[AC_TRY_LINK(
-dnl Don't include <ctype.h> because on OSF/1 3.0 it includes <sys/types.h>
-dnl which includes <sys/select.h> which contains a prototype for
-dnl select. Similarly for bzero.
-[/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char $1(); below. */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error. */
-]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
-extern "C"
-#endif
-])dnl
-[/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $1();
-], [
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_$1) || defined (__stub___$1)
-choke me
-#else
-$1();
-#endif
-], eval "ac_cv_func_$1_$2=yes", eval "ac_cv_func_$1_$2=no")])
-if eval "test \"`echo '$ac_cv_func_'$1'_'$2`\" = yes"; then
- AC_MSG_RESULT(yes)
- ifelse([$3], , :, [$3])
-else
- AC_MSG_RESULT(no)
-ifelse([$4], , , [$4
-])dnl
-fi
-])
-
-
-
-dnl Check checks whether dlsym (if present) requires a leading underscore.
-dnl Written by Dan Hagerty <hag@ai.mit.edu> for scsh-0.5.0.
-AC_DEFUN(GUILE_DLSYM_USCORE, [
- AC_MSG_CHECKING(for underscore before symbols)
- AC_CACHE_VAL(guile_cv_uscore,[
- echo "main(){int i=1;}
- fnord(){int i=23; int ltuae=42;}" > conftest.c
- ${CC} conftest.c > /dev/null
- if (nm a.out | grep _fnord) > /dev/null; then
- guile_cv_uscore=yes
- else
- guile_cv_uscore=no
- fi])
- AC_MSG_RESULT($guile_cv_uscore)
- rm -f conftest.c a.out
-
- if test $guile_cv_uscore = yes; then
- AC_DEFINE(USCORE)
-
- if test $ac_cv_func_dlopen = yes -o $ac_cv_lib_dl_dlopen = yes ; then
- AC_MSG_CHECKING(whether dlsym always adds an underscore for us)
- AC_CACHE_VAL(guile_cv_dlsym_adds_uscore,AC_TRY_RUN( [
-#include <dlfcn.h>
-#include <stdio.h>
-fnord() { int i=42;}
-main() { void *self, *ptr1, *ptr2; self=dlopen(NULL,RTLD_LAZY);
- if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
- if(ptr1 && !ptr2) exit(0); } exit(1); }
-], [guile_cv_dlsym_adds_uscore=yes
- AC_DEFINE(DLSYM_ADDS_USCORE) ], guile_cv_dlsym_adds_uscore=no,
- guile_cv_dlsym_adds_uscore=no))
-
- AC_MSG_RESULT($guile_cv_dlsym_adds_uscore)
- fi
- fi
-])
-
-dnl QTHREADS_CONFIGURE configures the QuickThreads package. The QT
-dnl sources should be in $srcdir/qt. If configuration succeeds, this
-dnl macro creates the appropriate symlinks in the qt object directory,
-dnl and sets the following variables, used in building libqthreads.a:
-dnl QTHREAD_LTLIBS --- set to libqthreads.la if configuration
-dnl succeeds, or the empty string if configuration fails.
-dnl qtmd_h, qtmds_s, qtmdc_c, qtdmdb_s --- the names of the machine-
-dnl dependent source files.
-dnl qthread_asflags --- flags to pass to the compiler when processing
-dnl assembly-language files.
-dnl
-dnl It also sets the following variables, which describe how clients
-dnl can link against libqthreads.a:
-dnl THREAD_PACKAGE --- set to "QT" if configuration succeeds, or
-dnl the empty string if configuration fails.
-dnl THREAD_CPPFLAGS --- set to `-I' flags for thread header files
-dnl THREAD_LIBS_LOCAL --- linker options for use in this source tree
-dnl THREAD_LIBS_INSTALLED --- linker options for use after this package
-dnl is installed
-dnl It would be nice if all thread configuration packages for Guile
-dnl followed the same conventions.
-dnl
-dnl All of the above variables will be substituted into Makefiles in
-dnl the usual autoconf fashion.
-dnl
-dnl We distinguish between THREAD_LIBS_LOCAL and
-dnl THREAD_LIBS_INSTALLED because the thread library might be in
-dnl this tree, and be built using libtool. This means that:
-dnl 1) when building other executables in this tree, one must
-dnl pass the relative path to the ../libfoo.la file, but
-dnl 2) once the whole package has been installed, users should
-dnl link using -lfoo.
-dnl Normally, we only care about the first case, but since the
-dnl guile-config script needs to give users all the flags they need
-dnl to link programs against guile, the GUILE_WITH_THREADS macro
-dnl needs to supply the second piece of information as well.
-dnl
-dnl This whole thing is a little confused about what ought to be
-dnl done in the top-level configure script, and what ought to be
-dnl taken care of in the subdirectory. For example, qtmds_s and
-dnl friends really ought not to be even mentioned in the top-level
-dnl configure script, but here they are.
-
-AC_DEFUN([QTHREADS_CONFIGURE],[
- AC_REQUIRE([AC_PROG_LN_S])
-
- AC_MSG_CHECKING(QuickThreads configuration)
- # How can we refer to the qt source directory from within the qt build
- # directory? For headers, we can rely on the fact that the qt src
- # directory appears in the #include path.
- qtsrcdir="`(cd $srcdir; pwd)`/qt"
-
- changequote(,)dnl We use [ and ] in a regexp in the case
-
- THREAD_PACKAGE=QT
- qthread_asflags=''
- case "$host" in
- i[3456]86-*-*)
- port_name=i386
- qtmd_h=md/i386.h
- qtmds_s=md/i386.s
- qtmdc_c=md/null.c
- qtdmdb_s=
- case "$host" in
- *-*-netbsd* )
- ## NetBSD needs to be told to pass the assembly code through
- ## the C preprocessor. Other GCC installations seem to do
- ## this by default, but NetBSD's doesn't. We could get the
- ## same effect by giving the file a name ending with .S
- ## instead of .s, but I don't see how to tell automake to do
- ## that.
- qthread_asflags='-x assembler-with-cpp'
- ;;
- esac
- ;;
- mips-sgi-irix[56]*)
- port_name=irix
- qtmd_h=md/mips.h
- qtmds_s=md/mips-irix5.s
- qtmdc_c=md/null.c
- qtdmdb_s=md/mips_b.s
- ;;
- mips-*-*)
- port_name=mips
- qtmd_h=md/mips.h
- qtmds_s=md/mips.s
- qtmdc_c=md/null.c
- qtdmdb_s=md/mips_b.s
- ;;
- sparc-*-sunos*)
- port_name=sparc-sunos
- qtmd_h=md/sparc.h
- qtmds_s=md/_sparc.s
- qtmdc_c=md/null.c
- qtdmdb_s=md/_sparc_b.s
- ;;
- sparc-*-*)
- port_name=sparc
- qtmd_h=md/sparc.h
- qtmds_s=md/sparc.s
- qtmdc_c=md/null.c
- qtdmdb_s=md/sparc_b.s
- ;;
- alpha-*-*)
- port_name=alpha
- qtmd_h=md/axp.h
- qtmds_s=md/axp.s
- qtmdc_c=md/null.c
- qtdmdb_s=md/axp_b.s
- ;;
- *)
- echo "Unknown configuration; threads package disabled"
- THREAD_PACKAGE=""
- ;;
- esac
- changequote([, ])
-
- # Did configuration succeed?
- if test -n "$THREAD_PACKAGE"; then
- AC_MSG_RESULT($port_name)
- QTHREAD_LTLIBS=libqthreads.la
- THREAD_CPPFLAGS="-I$qtsrcdir -I../qt"
- THREAD_LIBS_LOCAL="../qt/libqthreads.la"
- THREAD_LIBS_INSTALLED="-lqthreads"
- else
- AC_MSG_RESULT(none; disabled)
- fi
-
- AC_SUBST(QTHREAD_LTLIBS)
- AC_SUBST(qtmd_h)
- AC_SUBST(qtmds_s)
- AC_SUBST(qtmdc_c)
- AC_SUBST(qtdmdb_s)
- AC_SUBST(qthread_asflags)
- AC_SUBST(THREAD_PACKAGE)
- AC_SUBST(THREAD_CPPFLAGS)
- AC_SUBST(THREAD_LIBS_LOCAL)
- AC_SUBST(THREAD_LIBS_INSTALLED)
-])
+dnl -*- Autoconf -*-
+
+dnl Copyright (C) 1997, 1999, 2000, 2001, 2002, 2004, 2006,
+dnl 2007, 2008, 2009, 2010, 2011, 2013 Free Software Foundation, Inc.
+dnl
+dnl This file is part of GUILE
+dnl
+dnl GUILE is free software; you can redistribute it and/or modify it under
+dnl the terms of the GNU Lesser General Public License as published by the
+dnl Free Software Foundation; either version 3, or (at your option) any
+dnl later version.
+dnl
+dnl GUILE is distributed in the hope that it will be useful, but WITHOUT
+dnl ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+dnl FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+dnl License for more details.
+dnl
+dnl You should have received a copy of the GNU Lesser General Public
+dnl License along with GUILE; see the file COPYING.LESSER. If not, write
+dnl to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
+dnl Floor, Boston, MA 02110-1301, USA.
+
+
+dnl On the NeXT, #including <utime.h> doesn't give you a definition for
+dnl struct utime, unless you #define _POSIX_SOURCE.
+
+AC_DEFUN([GUILE_STRUCT_UTIMBUF], [
+ AC_CACHE_CHECK([whether we need POSIX to get struct utimbuf],
+ guile_cv_struct_utimbuf_needs_posix,
+ [AC_TRY_CPP([
+#ifdef __EMX__
+#include <sys/utime.h>
+#else
+#include <utime.h>
+#endif
+struct utime blah;
+],
+ guile_cv_struct_utimbuf_needs_posix=no,
+ guile_cv_struct_utimbuf_needs_posix=yes)])
+ if test "$guile_cv_struct_utimbuf_needs_posix" = yes; then
+ AC_DEFINE([UTIMBUF_NEEDS_POSIX], 1,
+ [Define this if <utime.h> doesn't define struct utimbuf unless
+ _POSIX_SOURCE is defined. See GUILE_STRUCT_UTIMBUF in aclocal.m4.])
+ fi])
+
+
+
+
+dnl
+dnl Apparently, at CMU they have a weird version of libc.h that is
+dnl installed in /usr/local/include and conflicts with unistd.h.
+dnl In these situations, we should not #include libc.h.
+dnl This test arranges to #define LIBC_H_WITH_UNISTD_H iff libc.h is
+dnl present on the system, and is safe to #include.
+dnl
+AC_DEFUN([GUILE_HEADER_LIBC_WITH_UNISTD],
+ [
+ AC_CHECK_HEADERS(libc.h unistd.h)
+ AC_CACHE_CHECK(
+ [whether libc.h and unistd.h can be included together],
+ guile_cv_header_libc_with_unistd,
+ [
+ if test "$ac_cv_header_libc_h" = "no"; then
+ guile_cv_header_libc_with_unistd="no"
+ elif test "$ac_cv_header_unistd_h" = "no"; then
+ guile_cv_header_libc_with_unistd="yes"
+ else
+ AC_TRY_COMPILE(
+ [
+# include <libc.h>
+# include <unistd.h>
+ ],
+ [],
+ [guile_cv_header_libc_with_unistd=yes],
+ [guile_cv_header_libc_with_unistd=no]
+ )
+ fi
+ ]
+ )
+ if test "$guile_cv_header_libc_with_unistd" = yes; then
+ AC_DEFINE([LIBC_H_WITH_UNISTD_H], 1,
+ [Define this if we should include <libc.h> when we've already
+ included <unistd.h>. On some systems, they conflict, and libc.h
+ should be omitted. See GUILE_HEADER_LIBC_WITH_UNISTD in
+ aclocal.m4.])
+ fi
+ ]
+)
+
+
+
+dnl This is needed when we want to check for the same function repeatedly
+dnl with other parameters, such as libraries, varying.
+dnl
+dnl GUILE_NAMED_CHECK_FUNC(FUNCTION, TESTNAME,
+dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+AC_DEFUN([GUILE_NAMED_CHECK_FUNC],
+[AC_MSG_CHECKING([for $1])
+AC_CACHE_VAL(ac_cv_func_$1_$2,
+[AC_TRY_LINK(
+dnl Don't include <ctype.h> because on OSF/1 3.0 it includes <sys/types.h>
+dnl which includes <sys/select.h> which contains a prototype for
+dnl select. Similarly for bzero.
+[/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $1(); below. */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $1();
+], [
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$1) || defined (__stub___$1)
+choke me
+#else
+$1();
+#endif
+], eval "ac_cv_func_$1_$2=yes", eval "ac_cv_func_$1_$2=no")])
+if eval "test \"`echo '$ac_cv_func_'$1'_'$2`\" = yes"; then
+ AC_MSG_RESULT(yes)
+ ifelse([$3], , :, [$3])
+else
+ AC_MSG_RESULT(no)
+ifelse([$4], , , [$4
+])dnl
+fi
+])
+
+
+
+
+dnl Available from the Autoconf Macro Archive at:
+dnl http://autoconf-archive.cryp.to/acx_pthread.html
+dnl
+AC_DEFUN([ACX_PTHREAD], [
+AC_REQUIRE([AC_CANONICAL_HOST])
+AC_LANG_SAVE
+AC_LANG_C
+acx_pthread_ok=no
+
+# We used to check for pthread.h first, but this fails if pthread.h
+# requires special compiler flags (e.g. on True64 or Sequent).
+# It gets checked for in the link test anyway.
+
+# First of all, check if the user has set any of the PTHREAD_LIBS,
+# etcetera environment variables, and if threads linking works using
+# them:
+if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+ save_LIBS="$LIBS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+ AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
+ AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
+ AC_MSG_RESULT($acx_pthread_ok)
+ if test x"$acx_pthread_ok" = xno; then
+ PTHREAD_LIBS=""
+ PTHREAD_CFLAGS=""
+ fi
+ LIBS="$save_LIBS"
+ CFLAGS="$save_CFLAGS"
+fi
+
+# We must check for the threads library under a number of different
+# names; the ordering is very important because some systems
+# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
+# libraries is broken (non-POSIX).
+
+# Create a list of thread flags to try. Items starting with a "-" are
+# C compiler flags, and other items are library names, except for "none"
+# which indicates that we try without any flags at all, and "pthread-config"
+# which is a program returning the flags for the Pth emulation library.
+
+acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+
+# The ordering *is* (sometimes) important. Some notes on the
+# individual items follow:
+
+# pthreads: AIX (must check this before -lpthread)
+# none: in case threads are in libc; should be tried before -Kthread and
+# other compiler flags to prevent continual compiler warnings
+# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
+# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
+# -pthreads: Solaris/gcc
+# -mthreads: Mingw32/gcc, Lynx/gcc
+# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
+# doesn't hurt to check since this sometimes defines pthreads too;
+# also defines -D_REENTRANT)
+# ... -mt is also the pthreads flag for HP/aCC
+# pthread: Linux, etcetera
+# --thread-safe: KAI C++
+# pthread-config: use pthread-config program (for GNU Pth library)
+
+case "${host_cpu}-${host_os}" in
+ *solaris*)
+
+ # On Solaris (at least, for some versions), libc contains stubbed
+ # (non-functional) versions of the pthreads routines, so link-based
+ # tests will erroneously succeed. (We need to link with -pthreads/-mt/
+ # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
+ # a function called by this macro, so we could check for that, but
+ # who knows whether they'll stub that too in a future libc.) So,
+ # we'll just look for -pthreads and -lpthread first:
+
+ acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
+ ;;
+esac
+
+if test x"$acx_pthread_ok" = xno; then
+for flag in $acx_pthread_flags; do
+
+ case $flag in
+ none)
+ AC_MSG_CHECKING([whether pthreads work without any flags])
+ ;;
+
+ -*)
+ AC_MSG_CHECKING([whether pthreads work with $flag])
+ PTHREAD_CFLAGS="$flag"
+ ;;
+
+ pthread-config)
+ AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
+ if test x"$acx_pthread_config" = xno; then continue; fi
+ PTHREAD_CFLAGS="`pthread-config --cflags`"
+ PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
+ ;;
+
+ *)
+ AC_MSG_CHECKING([for the pthreads library -l$flag])
+ PTHREAD_LIBS="-l$flag"
+ ;;
+ esac
+
+ save_LIBS="$LIBS"
+ save_CFLAGS="$CFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+ # Check for various functions. We must include pthread.h,
+ # since some functions may be macros. (On the Sequent, we
+ # need a special flag -Kthread to make this header compile.)
+ # We check for pthread_join because it is in -lpthread on IRIX
+ # while pthread_create is in libc. We check for pthread_attr_init
+ # due to DEC craziness with -lpthreads. We check for
+ # pthread_cleanup_push because it is one of the few pthread
+ # functions on Solaris that doesn't have a non-functional libc stub.
+ # We try pthread_create on general principles.
+ AC_TRY_LINK([#include <pthread.h>],
+ [pthread_t th; pthread_join(th, 0);
+ pthread_attr_init(0); pthread_cleanup_push(0, 0);
+ pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+ [acx_pthread_ok=yes])
+
+ LIBS="$save_LIBS"
+ CFLAGS="$save_CFLAGS"
+
+ AC_MSG_RESULT($acx_pthread_ok)
+ if test "x$acx_pthread_ok" = xyes; then
+ break;
+ fi
+
+ PTHREAD_LIBS=""
+ PTHREAD_CFLAGS=""
+done
+fi
+
+# Various other checks:
+if test "x$acx_pthread_ok" = xyes; then
+ save_LIBS="$LIBS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+ # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
+ AC_MSG_CHECKING([for joinable pthread attribute])
+ attr_name=unknown
+ for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+ AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
+ [attr_name=$attr; break])
+ done
+ AC_MSG_RESULT($attr_name)
+ if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
+ AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], $attr_name,
+ [Define to necessary symbol if this constant
+ uses a non-standard name on your system.])
+ fi
+
+ AC_MSG_CHECKING([if more special flags are required for pthreads])
+ flag=no
+ case "${host_cpu}-${host_os}" in
+ *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
+ *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
+ esac
+ AC_MSG_RESULT(${flag})
+ if test "x$flag" != xno; then
+ PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
+ fi
+
+ LIBS="$save_LIBS"
+ CFLAGS="$save_CFLAGS"
+
+ # More AIX lossage: must compile with xlc_r or cc_r
+ if test x"$GCC" != xyes; then
+ AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
+ else
+ PTHREAD_CC=$CC
+ fi
+else
+ PTHREAD_CC="$CC"
+fi
+
+AC_SUBST(PTHREAD_LIBS)
+AC_SUBST(PTHREAD_CFLAGS)
+AC_SUBST(PTHREAD_CC)
+
+# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
+if test x"$acx_pthread_ok" = xyes; then
+ ifelse([$1],,AC_DEFINE([HAVE_PTHREAD],1,[Define if you have POSIX threads libraries and header files.]),[$1])
+ :
+else
+ acx_pthread_ok=no
+ $2
+fi
+AC_LANG_RESTORE
+])dnl ACX_PTHREAD
+
+dnl GUILE_GNU_LD_RELRO
+dnl
+dnl Check whether GNU ld's read-only relocations (the `PT_GNU_RELRO'
+dnl ELF segment header) are supported. This allows things like
+dnl statically allocated cells (1) to eventually be remapped read-only
+dnl by the loader, and (2) to be identified as pointerless by the
+dnl garbage collector. Substitute `GNU_LD_FLAGS' with the relevant
+dnl flags.
+AC_DEFUN([GUILE_GNU_LD_RELRO], [
+ AC_MSG_CHECKING([whether the linker understands `-z relro'])
+
+ GNU_LD_FLAGS="-Wl,-z -Wl,relro"
+
+ save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS $GNU_LD_FLAGS"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ GNU_LD_FLAGS=""])
+ LDFLAGS="$save_LDFLAGS"
+
+ AC_SUBST([GNU_LD_FLAGS])
+])
+
+dnl GUILE_THREAD_LOCAL_STORAGE
+dnl
+dnl Check for compiler thread-local storage (TLS) support.
+AC_DEFUN([GUILE_THREAD_LOCAL_STORAGE], [
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ AC_CACHE_CHECK([whether the `__thread' storage class is available],
+ [ac_cv_have_thread_storage_class],
+ [dnl On some systems, e.g., NetBSD 5.0 with GCC 4.1, `__thread' is
+ dnl properly compiled but fails to link due to the lack of TLS
+ dnl support in the C library. Thus we try to link, not just
+ dnl compile. Unfortunately, this test is not enough, so we
+ dnl explicitly check for known-broken systems. See
+ dnl http://lists.gnu.org/archive/html/guile-devel/2009-10/msg00138.html
+ dnl for details.
+ dnl
+ dnl Known broken systems includes:
+ dnl - x86_64-unknown-netbsd5.0.
+ dnl - x86_64-unknown-netbsd5.1
+ dnl - sparc-sun-solaris2.8
+ dnl
+ dnl On `x86_64-unknown-freebsd8.0', thread-local storage appears to
+ dnl be reclaimed at the wrong time, leading to a segfault when
+ dnl running `threads.test'. So disable it.
+ case "$enable_shared--$host_os" in
+ [yes--netbsd[0-5].[0-9]*|yes--solaris2.8|yes--freebsd[0-8]*])
+ ac_cv_have_thread_storage_class="no"
+ ;;
+ *)
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([__thread int tls_integer;],
+ [tls_integer = 123;])],
+ [ac_cv_have_thread_storage_class="yes"],
+ [ac_cv_have_thread_storage_class="no"])
+ ;;
+ esac])
+
+ if test "x$ac_cv_have_thread_storage_class" = "xyes"; then
+ SCM_I_GSC_HAVE_THREAD_STORAGE_CLASS=1
+ else
+ SCM_I_GSC_HAVE_THREAD_STORAGE_CLASS=0
+ fi
+
+ AC_SUBST([SCM_I_GSC_HAVE_THREAD_STORAGE_CLASS])
+])
+
+dnl GUILE_READLINE
+dnl
+dnl Check all the things needed by `guile-readline', the Readline
+dnl bindings.
+AC_DEFUN([GUILE_READLINE], [
+ for termlib in ncurses curses termcap terminfo termlib pdcurses ; do
+ AC_CHECK_LIB(${termlib}, [tgoto],
+ [READLINE_LIBS="-l${termlib} $READLINE_LIBS"; break])
+ done
+
+ AC_LIB_LINKFLAGS([readline])
+
+ if test "x$LTLIBREADLINE" = "x"; then
+ AC_MSG_WARN([GNU Readline was not found on your system.])
+ else
+ rl_save_LIBS="$LIBS"
+ LIBS="$LIBREADLINE $READLINE_LIBS $LIBS"
+
+ AC_CHECK_FUNCS([siginterrupt rl_clear_signals rl_cleanup_after_signal])
+
+ dnl Check for modern readline naming
+ AC_CHECK_FUNCS([rl_filename_completion_function])
+ AC_CHECK_DECLS([rl_catch_signals, rl_catch_sigwinch], [], [],
+ [[#include <stdio.h>]
+ [#include <readline/readline.h>]])
+
+ dnl Check for rl_get_keymap. We only use this for deciding whether to
+ dnl install paren matching on the Guile command line (when using
+ dnl readline for input), so it's completely optional.
+ AC_CHECK_FUNCS([rl_get_keymap])
+
+ AC_CACHE_CHECK([for rl_getc_function pointer in readline],
+ ac_cv_var_rl_getc_function,
+ [AC_TRY_LINK([
+ #include <stdio.h>
+ #include <readline/readline.h>],
+ [printf ("%ld", (long) rl_getc_function)],
+ [ac_cv_var_rl_getc_function=yes],
+ [ac_cv_var_rl_getc_function=no])])
+ if test "${ac_cv_var_rl_getc_function}" = "yes"; then
+ AC_DEFINE([HAVE_RL_GETC_FUNCTION], 1,
+ [Define if your readline library has the rl_getc_function variable.])
+ fi
+
+ if test $ac_cv_var_rl_getc_function = no; then
+ AC_MSG_WARN([*** GNU Readline is too old on your system.])
+ AC_MSG_WARN([*** You need readline version 2.1 or later.])
+ LTLIBREADLINE=""
+ LIBREADLINE=""
+ fi
+
+ LIBS="$rl_save_LIBS"
+
+ READLINE_LIBS="$LTLIBREADLINE $READLINE_LIBS"
+ fi
+
+ AM_CONDITIONAL([HAVE_READLINE], [test "x$LTLIBREADLINE" != "x"])
+
+ AC_CHECK_FUNCS([strdup])
+
+ AC_SUBST([READLINE_LIBS])
+])
+
+dnl GUILE_LIBUNISTRING_WITH_ICONV_SUPPORT
+dnl
+dnl Check whether libunistring has iconv support. When it lacks iconv
+dnl support, `mem_iconveh' returns -1 (ENOSYS) and conversions from one
+dnl codeset to another do not work.
+AC_DEFUN([GUILE_LIBUNISTRING_WITH_ICONV_SUPPORT], [
+ AC_CACHE_CHECK([whether libunistring was built with iconv support],
+ [ac_cv_libunistring_with_iconv_support], [
+ save_LIBS=$LIBS
+ LIBS="$LIBS $LIBUNISTRING"
+ AC_RUN_IFELSE([AC_LANG_SOURCE([[
+ #include <uniconv.h>
+ #include <unistring/iconveh.h>
+ int
+ main (int argc, char *argv[])
+ {
+ size_t result_size;
+ return (NULL == u32_conv_from_encoding ("ASCII", iconveh_question_mark,
+ "a", 1,
+ NULL, NULL, &result_size));
+ }
+ ]])],
+ [ac_cv_libunistring_with_iconv_support=yes],
+ [ac_cv_libunistring_with_iconv_support=no],
+ [ac_cv_libunistring_with_iconv_support=yes])
+ LIBS=$save_LIBS
+ ])
+])
+
+dnl GUILE_UNISTRING_CONSTANT NAME
+dnl
+dnl Determine the compile-time value of NAME and define/substitute
+dnl `SCM_I_GSC_NAME'.
+AC_DEFUN([GUILE_UNISTRING_CONSTANT], [
+ m4_pushdef([UPPER_CASE_NAME],
+ [m4_translit([$1],[abcdefghijklmnopqrstuvwxyz],
+ [ABCDEFGHIJKLMNOPQRSTUVWXYZ])])
+
+ AC_CACHE_CHECK([the value of `$1'], [ac_cv_]$1, [
+ AC_COMPUTE_INT([ac_cv_]$1, [$1],
+ [AC_INCLUDES_DEFAULT
+#include <uniconv.h>
+],
+ [AC_MSG_ERROR([failed to determine the value of `$1'])])
+ ])
+
+ [SCM_I_GSC_]UPPER_CASE_NAME="$ac_cv_[]$1"
+ AC_SUBST([SCM_I_GSC_]UPPER_CASE_NAME)
+ m4_popdef([UPPER_CASE_NAME])])
+
+dnl GUILE_UNISTRING_ICONVEH_VALUES
+dnl
+dnl Determine the values of the `iconveh_' libunistring constants.
+AC_DEFUN([GUILE_UNISTRING_ICONVEH_VALUES], [
+ GUILE_UNISTRING_CONSTANT([iconveh_error])
+ GUILE_UNISTRING_CONSTANT([iconveh_question_mark])
+ GUILE_UNISTRING_CONSTANT([iconveh_escape_sequence])
+])
+
+dnl GUILE_CHECK_VERSION
+dnl
+dnl Ensure that $GUILE_FOR_BUILD has the same version as ourselves.
+AC_DEFUN([GUILE_CHECK_VERSION], [
+ if ! "$GUILE_FOR_BUILD" --version > /dev/null 2>&1; then
+ AC_MSG_ERROR([failed to run `$GUILE_FOR_BUILD'])
+ fi
+
+ dnl Use MAJOR.MINOR.MICRO instead of (version) so that developers can
+ dnl freely shoot themselves in the foot by using, say, 2.0.3.80 and
+ dnl 2.0.3.42.
+ AC_CACHE_CHECK([the version of $GUILE_FOR_BUILD],
+ [ac_cv_guile_for_build_version],
+ [ac_cv_guile_for_build_version="`"$GUILE_FOR_BUILD" \
+ -c '(format #t "~a.~a.~a" (major-version) (minor-version) (micro-version))'`"
+ ])
+
+ if test "$ac_cv_guile_for_build_version" != \
+ "$GUILE_MAJOR_VERSION.$GUILE_MINOR_VERSION.$GUILE_MICRO_VERSION"
+ then
+ AC_MSG_ERROR([building Guile $PACKAGE_VERSION but `$GUILE_FOR_BUILD' has version $ac_cv_guile_for_build_version"])
+ fi
+])
+
+dnl GUILE_CHECK_GUILE_FOR_BUILD
+dnl
+dnl When cross-compiling, ensure that $GUILE_FOR_BUILD is suitable.
+AC_DEFUN([GUILE_CHECK_GUILE_FOR_BUILD], [
+ if test "$cross_compiling" = "yes"; then
+ if test "x$GUILE_FOR_BUILD" = "x"; then
+ AC_PATH_PROG([GUILE_FOR_BUILD], [guile], [not-found])
+ if test "$GUILE_FOR_BUILD" = "not-found"; then
+ AC_MSG_ERROR([a native Guile $PACKAGE_VERSION is required to cross-build Guile])
+ fi
+ fi
+ AC_MSG_CHECKING([guile for build])
+ AC_MSG_RESULT([$GUILE_FOR_BUILD])
+
+ dnl Since there is currently no distinction between the run-time
+ dnl search path, %load-path, and the compiler's search path,
+ dnl $GUILE_FOR_BUILD must be a native build of the very same version.
+ GUILE_CHECK_VERSION
+ else
+ GUILE_FOR_BUILD='this-value-will-never-be-used'
+ fi
+
+ AC_ARG_VAR([GUILE_FOR_BUILD], [guile for the build system])
+ AM_SUBST_NOTMAKE([GUILE_FOR_BUILD])
+])
+
+dnl Declare file $1 to be a script that needs configuring,
+dnl and arrange to make it executable in the process.
+AC_DEFUN([GUILE_CONFIG_SCRIPT],[AC_CONFIG_FILES([$1],[chmod +x $1])])
HCoop / bpt / guile.git / blobdiff