1 dnl ===========================================================================
2 dnl Additional macros used to configure GiNaC. We don't start our own
3 dnl additions' names with AC_ but with GINAC_ in order to steer clear of
5 dnl ===========================================================================
7 dnl Usage: GINAC_RLVERSION
8 dnl The maintainers of libreadline are complete morons: they don't care a shit
9 dnl about compatiblilty (which is not so bad by itself) and at the same time
10 dnl they don't export the version to the preprocessor so we could kluge around
11 dnl incomatiblities. The only reliable way to figure out the version is by
12 dnl checking the extern variable rl_library_version at runtime. &#@$%*!
13 AC_DEFUN([GINAC_LIB_READLINE_VERSION],
14 [AC_CACHE_CHECK([for version of libreadline], ginac_cv_rlversion, [
17 #include <sys/types.h>
18 #include <readline/readline.h>
23 fd = fopen("conftest.out", "w");
24 fprintf(fd, "%s\n", rl_library_version);
27 }], ginac_cv_rlversion=`cat 'conftest.out'`, ginac_cv_rlversion='unknown', ginac_cv_rlversion='4.2')])
28 if test "x${ginac_cv_rlversion}" != "xunknown"; then
29 RL_VERSION_MAJOR=`echo ${ginac_cv_rlversion} | sed -e 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
30 AC_DEFINE_UNQUOTED(GINAC_RL_VERSION_MAJOR, $RL_VERSION_MAJOR, [Major version of installed readline library.])
31 RL_VERSION_MINOR=`echo ${ginac_cv_rlversion} | sed -e 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'`
32 AC_DEFINE_UNQUOTED(GINAC_RL_VERSION_MINOR, $RL_VERSION_MINOR, [Minor version of installed readline library.])
34 GINAC_WARNING([I could not run a test of libreadline (needed for building ginsh).])
38 dnl Usage: GINAC_TERMCAP
39 dnl libreadline is based on the termcap functions.
40 dnl Some systems have tgetent(), tgetnum(), tgetstr(), tgetflag(), tputs(),
41 dnl tgoto() in libc, some have it in libtermcap, some have it in libncurses.
42 dnl When both libtermcap and libncurses exist, we prefer the latter, because
43 dnl libtermcap is being phased out.
44 AC_DEFUN([GINAC_TERMCAP],
46 AC_CHECK_FUNCS(tgetent)
47 if test "x$ac_cv_func_tgetent" = "xyes"; then
50 AC_CHECK_LIB(ncurses, tgetent, LIBTERMCAP="-lncurses")
51 if test -z "$LIBTERMCAP"; then
52 AC_CHECK_LIB(termcap, tgetent, LIBTERMCAP="-ltermcap")
58 dnl Usage: GINAC_ERROR(message)
59 dnl This macro displays the warning "message" and sets the flag ginac_error
61 AC_DEFUN([GINAC_ERROR],[
62 ginac_error_txt="$ginac_error_txt
67 dnl Usage: GINAC_WARNING(message)
68 dnl This macro displays the warning "message" and sets the flag ginac_warning
70 AC_DEFUN([GINAC_WARNING],[
71 ginac_warning_txt="$ginac_warning_txt
76 dnl Usage: GINAC_CHECK_ERRORS
77 dnl (must be put at end of configure.in, because it exits on error)
78 dnl This macro displays a warning message if GINAC_ERROR or GINAC_WARNING
79 dnl has occured previously.
80 AC_DEFUN([GINAC_CHECK_ERRORS],[
81 if test "x${ginac_error}" = "xyes"; then
82 echo "**** The following problems have been detected by configure."
83 echo "**** Please check the messages below before running \"make\"."
84 echo "**** (see the section 'Common Problems' in the INSTALL file)"
85 echo "$ginac_error_txt"
86 if test "x${ginac_warning_txt}" != "x"; then
87 echo "${ginac_warning_txt}"
89 if test "x$cache_file" != "x/dev/null"; then
90 echo "deleting cache ${cache_file}"
95 if test "x${ginac_warning}" = "xyes"; then
96 echo "=== The following minor problems have been detected by configure."
97 echo "=== Please check the messages below before running \"make\"."
98 echo "=== (see the section 'Common Problems' in the INSTALL file)"
99 echo "$ginac_warning_txt"
101 echo "Configuration of GiNaC $VERSION done. Now type \"make\"."
104 AC_DEFUN([GINAC_HAVE_RUSAGE],
105 [AC_CACHE_CHECK([whether struct rusage is declared in <sys/resource.h>],
107 [AC_TRY_COMPILE([#include <sys/times.h>
108 #include <sys/resource.h>],
109 [struct rusage resUsage;
110 getrusage(RUSAGE_SELF, &resUsage);
112 [ac_cv_have_rusage=yes],
113 [ac_cv_have_rusage=no])
116 if test "$ac_cv_have_rusage" = yes; then
118 AC_DEFINE(HAVE_RUSAGE,,[define if struct rusage declared in <sys/resource.h>])
120 AC_SUBST(CONFIG_RUSAGE)