(scm_log): Test HAVE_CLOG as well as HAVE_COMPLEX_DOUBLE

[bpt/guile.git] / configure.in

diff --git a/configure.in b/configure.in
index f9fa4f2..6e6bff6 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -4,7 +4,7 @@ dnl
 
 define(GUILE_CONFIGURE_COPYRIGHT,[[
 
-Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 
 This file is part of GUILE
 
@@ -25,14 +25,23 @@ Boston, MA 02110-1301, USA.
 
 ]])
 
-AC_PREREQ(2.53)
+AC_PREREQ(2.59)
 
-AC_INIT(m4_esyscmd(. ./GUILE-VERSION && echo -n ${PACKAGE}),
-        m4_esyscmd(. ./GUILE-VERSION && echo -n ${GUILE_VERSION}),
+dnl  `patsubst' here deletes the newline which "echo" prints.  We can't use
+dnl  "echo -n" since -n is not portable (see autoconf manual "Limitations of
+dnl  Builtins"), in particular on solaris it results in a literal "-n" in
+dnl  the output.
+dnl
+AC_INIT(patsubst(m4_esyscmd(. ./GUILE-VERSION && echo ${PACKAGE}),[
+]),
+        patsubst(m4_esyscmd(. ./GUILE-VERSION && echo ${GUILE_VERSION}),[
+]),
         [bug-guile@gnu.org])
-AC_CONFIG_AUX_DIR([.])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR(GUILE-VERSION)
-AM_INIT_AUTOMAKE([no-define])
+
+AM_INIT_AUTOMAKE([gnu no-define check-news])
 
 AC_COPYRIGHT(GUILE_CONFIGURE_COPYRIGHT)
 AC_CONFIG_SRCDIR([GUILE-VERSION])
@@ -59,12 +68,12 @@ AC_LIBTOOL_WIN32_DLL
 
 AC_PROG_INSTALL
 AC_PROG_CC
+gl_EARLY
 AC_PROG_CPP
 AC_PROG_AWK
 
-AC_AIX
-AC_ISC_POSIX
-AC_MINIX
+dnl Gnulib.
+gl_INIT
 
 AM_PROG_CC_STDC
 # for per-target cflags in the libguile subdir
@@ -218,6 +227,9 @@ AC_CHECK_LIB(uca, __uc_get_ar_bsp)
 
 AC_C_CONST
 
+# "volatile" is used in a couple of tests below.
+AC_C_VOLATILE
+
 AC_C_INLINE
 if test "$ac_cv_c_inline" != no; then
   SCM_I_GSC_C_INLINE="\"${ac_cv_c_inline}\""
@@ -665,6 +677,8 @@ AC_SEARCH_LIBS(crypt, crypt,
 # for the principal root.
 #
 if test "$ac_cv_type_complex_double" = yes; then
+
+  AC_CHECK_FUNCS(cexp clog carg)                        
   AC_CACHE_CHECK([whether csqrt is usable],
     guile_cv_use_csqrt,
     [AC_TRY_RUN([
@@ -957,32 +971,24 @@ AC_CHECK_FUNCS(asinh acosh atanh copysign finite sincos trunc)
 # use <math.h> so doesn't detect on macro-only systems like HP-UX.
 #
 AC_MSG_CHECKING([for isinf])
-AC_LINK_IFELSE(
-[#include <math.h>
-int main () { return (isinf(0.0) != 0); }],
+AC_LINK_IFELSE(AC_LANG_SOURCE(
+[[#include <math.h>
+volatile double x = 0.0;
+int main () { return (isinf(x) != 0); }]]),
   [AC_MSG_RESULT([yes])
    AC_DEFINE(HAVE_ISINF, 1,
              [Define to 1 if you have the `isinf' macro or function.])],
   [AC_MSG_RESULT([no])])
 AC_MSG_CHECKING([for isnan])
-AC_LINK_IFELSE(
-[#include <math.h>
-int main () { return (isnan(0.0) != 0); }],
+AC_LINK_IFELSE(AC_LANG_SOURCE(
+[[#include <math.h>
+volatile double x = 0.0;
+int main () { return (isnan(x) != 0); }]]),
   [AC_MSG_RESULT([yes])
    AC_DEFINE(HAVE_ISNAN, 1,
              [Define to 1 if you have the `isnan' macro or function.])],
   [AC_MSG_RESULT([no])])
 
-# We must have a proper stack-using alloca in order for stack-copying
-# continuations to work properly.  If we don't find a native one,
-# abort.
-
-AC_FUNC_ALLOCA
-if test "$ALLOCA" = "alloca.o"
-then
-  AC_ERROR([No native alloca found.])
-fi
-
 # Reasons for checking:
 #
 #     st_rdev
@@ -1336,6 +1342,7 @@ AC_CONFIG_FILES([libguile/gen-scmconfig.h])
 AC_CONFIG_FILES([
   Makefile
   am/Makefile
+  lib/Makefile
   benchmark-suite/Makefile
   doc/Makefile
   doc/goops/Makefile