- Check the normal(c-(b*a-c*a)/(4-a)) bug.

[ginac.git] / aclocal.m4

diff --git a/aclocal.m4 b/aclocal.m4
index d4cb399bc994e67795632a123d95c1655fd985e4..fe627fdbb27983075d709448bd603ba23ce74306 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -43,13 +43,13 @@ AC_DEFUN(GINAC_CHECK_LIBCLN,
         [LIBS="-lcln"
         case "${ac_cv_header_cln_cln_h}" in
         "yes")
-            AC_TRY_LINK([#include <cln/cln.h>],
+            AC_TRY_LINK([#include <cln/cl_integer.h>],
                 [doublefactorial(2);],
                 ginac_cv_lib_cln_link="-lcln",
                 ginac_cv_lib_cln_link="fail")
             ;;
         *)
-            AC_TRY_LINK([#include <cln.h>],
+            AC_TRY_LINK([#include <cl_integer.h>],
                 [doublefactorial(2);],
                 ginac_cv_lib_cln_link="-lcln",
                 ginac_cv_lib_cln_link="fail")
@@ -66,12 +66,32 @@ dnl linking failed:
     "fail")
         LIBS="${saved_LIBS}"
         AC_MSG_RESULT([no])
-        GINAC_ERROR([I could not successfully link a test-program against libcln and run it.
+        GINAC_ERROR([I could not successfully link a test-program against libcln.
    You either need to set \$LDFLAGS or install/update the CLN library.])
     ;;
     esac
 ])
 
+dnl Usage: GINAC_TERMCAP
+dnl libreadline is based on the termcap functions.
+dnl Some systems have tgetent(), tgetnum(), tgetstr(), tgetflag(), tputs(),
+dnl tgoto() in libc, some have it in libtermcap, some have it in libncurses.
+dnl When both libtermcap and libncurses exist, we prefer the latter, because
+dnl libtermcap is being phased out.
+AC_DEFUN(GINAC_TERMCAP,
+[LIBTERMCAP=
+AC_CHECK_FUNCS(tgetent)
+if test "x$ac_cv_func_tgetent" = "xyes"; then
+    :
+else
+    AC_CHECK_LIB(ncurses, tgetent, LIBTERMCAP="-lncurses")
+    if test -z "$LIBTERMCAP"; then
+        AC_CHECK_LIB(termcap, tgetent, LIBTERMCAP="-ltermcap")
+    fi
+fi
+AC_SUBST(LIBTERMCAP)
+])
+
 dnl Usage: GINAC_ERROR(message)
 dnl This macro displays the warning "message" and sets the flag ginac_error
 dnl to yes.
@@ -96,23 +116,23 @@ dnl This macro displays a warning message if GINAC_ERROR or GINAC_WARNING
 dnl has occured previously.
 AC_DEFUN(GINAC_CHECK_ERRORS,[
 if test "x${ginac_error}" = "xyes"; then
-  echo "**** The following problems have been detected by configure."
-  echo "**** Please check the messages below before running \"make\"."
-  echo "**** (see the section 'Common Problems' in the INSTALL file)"
-  echo "$ginac_error_txt"
-  if test "x${ginac_warning_txt}" != "x"; then
-    echo "${ginac_warning_txt}"
-  fi
-  echo "deleting cache ${cache_file}"
-  rm -f $cache_file
-  else 
-    if test x$ginac_warning = xyes; then
-      echo "=== The following minor problems have been detected by configure."
-      echo "=== Please check the messages below before running \"make\"."
-      echo "=== (see the section 'Common Problems' in the INSTALL file)"
-      echo "$ginac_warning_txt"
+    echo "**** The following problems have been detected by configure."
+    echo "**** Please check the messages below before running \"make\"."
+    echo "**** (see the section 'Common Problems' in the INSTALL file)"
+    echo "$ginac_error_txt"
+    if test "x${ginac_warning_txt}" != "x"; then
+        echo "${ginac_warning_txt}"
     fi
-  echo "Configuration of GiNaC $VERSION done. Now type \"make\"."
+    echo "deleting cache ${cache_file}"
+    rm -f $cache_file
+    else 
+        if test x$ginac_warning = xyes; then
+            echo "=== The following minor problems have been detected by configure."
+            echo "=== Please check the messages below before running \"make\"."
+            echo "=== (see the section 'Common Problems' in the INSTALL file)"
+            echo "$ginac_warning_txt"
+        fi
+    echo "Configuration of GiNaC $VERSION done. Now type \"make\"."
 fi])
 
 # Like AC_CONFIG_HEADER, but automatically create stamp file.
@@ -277,7 +297,7 @@ LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
 DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
-$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $lt_target \
+$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
 || AC_MSG_ERROR([libtool configure failed])
 
 # Reload cache, that may have been modified by ltconfig
@@ -309,11 +329,6 @@ AC_REQUIRE([AC_PROG_NM])dnl
 AC_REQUIRE([AC_PROG_LN_S])dnl
 dnl
 
-case "$target" in
-NONE) lt_target="$host" ;;
-*) lt_target="$target" ;;
-esac
-
 # Check for any special flags to pass to ltconfig.
 libtool_flags="--cache-file=$cache_file"
 test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
@@ -332,7 +347,7 @@ test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
 
 # Some flags need to be propagated to the compiler or linker for good
 # libtool support.
-case "$lt_target" in
+case "$host" in
 *-*-irix6*)
   # Find out which ABI we are using.
   echo '[#]line __oline__ "configure"' > conftest.$ac_ext
@@ -357,7 +372,10 @@ case "$lt_target" in
   SAVE_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -belf"
   AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
-    [AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])])
+    [AC_LANG_SAVE
+     AC_LANG_C
+     AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
+     AC_LANG_RESTORE])
   if test x"$lt_cv_cc_needs_belf" != x"yes"; then
     # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
     CFLAGS="$SAVE_CFLAGS"
@@ -548,6 +566,7 @@ else
   AC_MSG_RESULT(no)
 fi
 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
+AC_SUBST(LD)
 AC_PROG_LD_GNU
 ])
 
@@ -593,13 +612,14 @@ else
 fi])
 NM="$ac_cv_path_NM"
 AC_MSG_RESULT([$NM])
+AC_SUBST(NM)
 ])
 
 # AC_CHECK_LIBM - check for math library
 AC_DEFUN(AC_CHECK_LIBM,
 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
 LIBM=
-case "$lt_target" in
+case "$host" in
 *-*-beos* | *-*-cygwin*)
   # These system don't have libm
   ;;