dnl -*- Autoconf -*-
dnl Copyright (C) 1997, 1999, 2000, 2001, 2002, 2004, 2006,
-dnl 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+dnl 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
dnl
dnl This file is part of GUILE
dnl
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
dnl Known broken systems includes:
dnl - x86_64-unknown-netbsd5.0.
+ dnl - x86_64-unknown-netbsd5.1
dnl - sparc-sun-solaris2.8
- case "x$enable_shared--$host" in
- xyes--*netbsd[0-5].[0-9].|xyes--*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"])
- ;;
+ 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$ac_cv_have_thread_storage_class" = "xyes"; then
AC_SUBST(LIBGUILEREADLINE_INTERFACE)
])
+dnl GUILE_LIBUNISTRING_WITH_ICONV_SUPPORT
+dnl
+dnl Check whether libunistring has iconv support. When it lacks iconv
+dnl support, `mem_iconveh' returns -1 (ENOSYS) and conversions from one
+dnl codeset to another do not work.
+AC_DEFUN([GUILE_LIBUNISTRING_WITH_ICONV_SUPPORT], [
+ AC_CACHE_CHECK([whether libunistring was built with iconv support],
+ [ac_cv_libunistring_with_iconv_support], [
+ save_LIBS=$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])])
+
+\f
+dnl Copyright (C) 2002-2006, 2009-2011 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# Check for clock_gettime and clock_settime, and set LIB_CLOCK_GETTIME.
+# For a program named, say foo, you should add a line like the following
+# in the corresponding Makefile.am file:
+# foo_LDADD = $(LDADD) $(LIB_CLOCK_GETTIME)
+
+AC_DEFUN([gl_CLOCK_TIME],
+[
+ dnl Persuade glibc and Solaris <time.h> to declare these functions.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+ # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
+ # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
+
+ # Save and restore LIBS so e.g., -lrt, isn't added to it. Otherwise, *all*
+ # programs in the package would end up linked with that potentially-shared
+ # library, inducing unnecessary run-time overhead.
+ LIB_CLOCK_GETTIME=
+ AC_SUBST([LIB_CLOCK_GETTIME])
+ gl_saved_libs=$LIBS
+ AC_SEARCH_LIBS([clock_gettime], [rt posix4],
+ [if test "$ac_cv_search_clock_gettime" = "none required"; then
+ AC_SEARCH_LIBS([clock_getcpuclockid], [rt posix4],
+ [test "$ac_cv_search_clock_getcpuclockid" = "none required" \
+ || LIB_CLOCK_GETTIME=$ac_cv_search_clock_getcpuclockid],
+ [test "$ac_cv_search_clock_gettime" = "none required" \
+ || LIB_CLOCK_GETTIME=$ac_cv_search_clock_gettime])
+ else
+ LIB_CLOCK_GETTIME=$ac_cv_search_clock_gettime
+ fi])
+ AC_CHECK_FUNCS([clock_gettime clock_settime clock_getcpuclockid])
+ LIBS=$gl_saved_libs
+])