volatile locals in bootstrap evaluator

[bpt/guile.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index faf31f3..69f35e2 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,8 @@ dnl
 
 define(GUILE_CONFIGURE_COPYRIGHT,[[
 
-Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+  2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
 
 This file is part of GUILE
 
@@ -75,6 +76,8 @@ AM_PROG_CC_C_O
 AC_LIBTOOL_DLOPEN
 AC_PROG_LIBTOOL
 
+AM_CONDITIONAL([HAVE_SHARED_LIBRARIES], [test "x$enable_shared" = "xyes"])
+
 dnl Check for libltdl.
 AC_LIB_HAVE_LINKFLAGS([ltdl], [], [#include <ltdl.h>],
   [lt_dlopenext ("foo");])
@@ -281,8 +284,8 @@ AC_CHECK_SIZEOF(ptrdiff_t)
 AC_CHECK_SIZEOF(size_t)
 AC_CHECK_SIZEOF(off_t)
 
-if test "$ac_cv_sizeof_long" -ne "$ac_cv_sizeof_void_p"; then
-  AC_MSG_ERROR(sizes of long and void* are not identical)
+if test "$ac_cv_sizeof_long" -gt "$ac_cv_sizeof_void_p"; then
+  AC_MSG_ERROR(long does not fit into a void*)
 fi
 
 if test "$ac_cv_sizeof_ptrdiff_t" -ne 0; then
@@ -644,7 +647,7 @@ AC_CHECK_HEADERS([complex.h fenv.h io.h libc.h limits.h malloc.h memory.h proces
 regex.h rxposix.h rx/rxposix.h sys/dir.h sys/ioctl.h sys/select.h \
 sys/time.h sys/timeb.h sys/times.h sys/stdtypes.h sys/types.h \
 sys/utime.h time.h unistd.h utime.h pwd.h grp.h sys/utsname.h \
-direct.h langinfo.h nl_types.h machine/fpu.h])
+direct.h langinfo.h nl_types.h machine/fpu.h poll.h])
 
 # Reasons for testing:
 #   nl_item - lacking on Cygwin
@@ -741,6 +744,7 @@ AC_CHECK_HEADERS([assert.h crt_externs.h])
 #   gmtime_r - recent posix, not on old systems
 #   pipe - not in mingw
 #   _pipe - specific to mingw, taking 3 args
+#   poll - since posix 2001
 #   readdir_r - recent posix, not on old systems
 #   readdir64_r - not available on HP-UX 11.11
 #   stat64 - SuS largefile stuff, not on old systems
@@ -751,8 +755,9 @@ AC_CHECK_HEADERS([assert.h crt_externs.h])
 #   strcoll_l, newlocale - GNU extensions (glibc), also available on Darwin
 #   nl_langinfo - X/Open, not available on Windows.
 #   utimensat: posix.1-2008
+#   sched_getaffinity, sched_setaffinity: GNU extensions (glibc)
 #
-AC_CHECK_FUNCS([DINFINITY DQNAN cexp chsize clog clog10 ctermid fesetround ftime ftruncate fchown getcwd geteuid getsid gettimeofday gmtime_r ioctl lstat mkdir mknod nice pipe _pipe readdir_r readdir64_r readlink rename rmdir select setegid seteuid setlocale setpgid setsid sigaction siginterrupt stat64 strftime strptime symlink sync sysconf tcgetpgrp tcsetpgrp times uname waitpid strdup system usleep atexit on_exit chown link fcntl ttyname getpwent getgrent kill getppid getpgrp fork setitimer getitimer strchr strcmp index bcopy memcpy rindex truncate unsetenv isblank _NSGetEnviron strcoll strcoll_l newlocale nl_langinfo utimensat])
+AC_CHECK_FUNCS([DINFINITY DQNAN cexp chsize clog clog10 ctermid fesetround ftime ftruncate fchown getcwd geteuid getsid gettimeofday gmtime_r ioctl lstat mkdir mknod nice pipe _pipe poll readdir_r readdir64_r readlink rename rmdir select setegid seteuid setlocale setpgid setsid sigaction siginterrupt stat64 strftime strptime symlink sync sysconf tcgetpgrp tcsetpgrp times uname waitpid strdup system usleep atexit on_exit chown link fcntl ttyname getpwent getgrent kill getppid getpgrp fork setitimer getitimer strchr strcmp index bcopy memcpy rindex truncate unsetenv isblank _NSGetEnviron strcoll strcoll_l newlocale nl_langinfo utimensat sched_getaffinity sched_setaffinity])
 
 # Reasons for testing:
 #   netdb.h - not in mingw
@@ -862,9 +867,7 @@ if test "x$HAVE_LIBGMP" != "xyes"; then
 fi
 
 dnl GNU libunistring is checked for by Gnulib's `libunistring' module.
-if test "x$LTLIBUNISTRING" != "x"; then
-  LIBS="$LTLIBUNISTRING $LIBS"
-else
+if test "x$LTLIBUNISTRING" = "x"; then
   AC_MSG_ERROR([GNU libunistring is required, please install it.])
 fi
 
@@ -1231,11 +1234,15 @@ main ()
 #--------------------------------------------------------------------
 PKG_CHECK_MODULES([BDW_GC], [bdw-gc])
 
-CFLAGS="$BDW_GC_CFLAGS $CFLAGS"
+save_LIBS="$LIBS"
 LIBS="$BDW_GC_LIBS $LIBS"
+CFLAGS="$BDW_GC_CFLAGS $CFLAGS"
+
+AC_CHECK_FUNCS([GC_do_blocking GC_call_with_gc_active])
 
-# `GC_do_blocking ()' is available in GC 7.1 but not declared.
-AC_CHECK_FUNCS([GC_do_blocking])
+# Though the `GC_do_blocking ()' symbol is present in GC 7.1, it is not
+# declared, and has a different type (returning void instead of
+# void*).
 AC_CHECK_DECL([GC_do_blocking],
   [AC_DEFINE([HAVE_DECL_GC_DO_BLOCKING], [1],
     [Define this if the `GC_do_blocking ()' function is declared])],
@@ -1249,6 +1256,8 @@ AC_CHECK_TYPE([GC_fn_type],
   [],
   [#include <gc/gc.h>])
 
+LIBS="$save_LIBS"
+
 
 AC_CHECK_SIZEOF(float)
 if test "$ac_cv_sizeof_float" -le "$ac_cv_sizeof_long"; then