gcd_pf_{pow, mul}: don't check if the arguments are polynomials.

[ginac.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index 09d71cb3b2fa84fe7c49ba3e5d1e7c63c8e68748..dd7299c08ebea595232594d3c224e39918fe1015 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -24,8 +24,15 @@ int main()
     fprintf(fd, "%s\n", rl_library_version);
     fclose(fd);
     return 0;
-}], ginac_cv_rlversion=`cat 'conftest.out'`, ginac_cv_rlversion='unknown', ginac_cv_rlversion='4.2')])
+}], [
+dnl Some non-GNU readline implementations have non-numeric rl_library_version
+ginac_cv_rlversion=`sed -e 's/[[^0-9.]]//g' 'conftest.out'`], [ ginac_cv_rlversion='unknown'], [ ginac_cv_rlversion='4.2'])])
+if test -z "$ginac_cv_rlversion"; then
+       GINAC_WARNING([Unsupported version of libreadline.])
+       ginac_cv_rlversion='unknown'
+fi
 if test "x${ginac_cv_rlversion}" != "xunknown"; then
+       AC_DEFINE(REALLY_HAVE_LIBREADLINE, ,[Define if GNU libreadline is installed])
   RL_VERSION_MAJOR=`echo ${ginac_cv_rlversion} | sed -e 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
   AC_DEFINE_UNQUOTED(GINAC_RL_VERSION_MAJOR, $RL_VERSION_MAJOR, [Major version of installed readline library.])
   RL_VERSION_MINOR=`echo ${ginac_cv_rlversion} | sed -e 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'`
@@ -43,6 +50,10 @@ dnl When both libtermcap and libncurses exist, we prefer the latter, because
 dnl libtermcap is being phased out.
 AC_DEFUN([GINAC_TERMCAP],
 [LIBTERMCAP=
+case $host_os in
+*mingw32*)
+ ;; dnl no termcap libraries are necessary (need hacked libreadline)
+*)
 AC_CHECK_FUNCS(tgetent)
 if test "x$ac_cv_func_tgetent" = "xyes"; then
     :
@@ -52,6 +63,8 @@ else
         AC_CHECK_LIB(termcap, tgetent, LIBTERMCAP="-ltermcap")
     fi
 fi
+;;
+esac
 AC_SUBST(LIBTERMCAP)
 ])
 
@@ -100,3 +113,22 @@ else
     fi
     echo "Configuration of GiNaC $VERSION done. Now type \"make\"."
 fi])
+
+AC_DEFUN([GINAC_HAVE_RUSAGE],
+[AC_CACHE_CHECK([whether struct rusage is declared in <sys/resource.h>],
+ac_cv_have_rusage,
+ [AC_TRY_COMPILE([#include <sys/times.h>
+                  #include <sys/resource.h>],
+                  [struct rusage resUsage;
+                   getrusage(RUSAGE_SELF, &resUsage);
+                   return 0;],
+                 [ac_cv_have_rusage=yes],
+                 [ac_cv_have_rusage=no])
+])
+CONFIG_RUSAGE="no"
+if test "$ac_cv_have_rusage" = yes; then
+  CONFIG_RUSAGE="yes"
+  AC_DEFINE(HAVE_RUSAGE,,[define if struct rusage declared in <sys/resource.h>])
+fi
+AC_SUBST(CONFIG_RUSAGE)
+])