From: Richard Kreckel Date: Tue, 29 Feb 2000 17:25:03 +0000 (+0000) Subject: - Patch for static libreadline w/ libncurses problem, submitted by B.Haible. X-Git-Tag: release_0-5-4~20 X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=e83ae17200782b59d4a19d4e476f9bbfaefd7468 - Patch for static libreadline w/ libncurses problem, submitted by B.Haible. --- diff --git a/acinclude.m4 b/acinclude.m4 index 962a8c01..5c39bc05 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -60,6 +60,26 @@ dnl linking failed: 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. @@ -84,21 +104,21 @@ 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 $VERSION done. Now type \"make\"." fi]) diff --git a/aclocal.m4 b/aclocal.m4 index e3a71882..099e24f8 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -72,6 +72,26 @@ dnl linking failed: esac ]) +dnl Usage: GINAC_TERMCAP +dnl libreadline is based on the termcap functions. +dnl Some systems have tgetent(), tgetnum(), tgetstr(), tgetflag(), tputs(), +dnl tgoto() in libc, some have it in libtermcap, some have it in libncurses. +dnl When both libtermcap and libncurses exist, we prefer the latter, because +dnl libtermcap is being phased out. +AC_DEFUN(GINAC_TERMCAP, +[LIBTERMCAP= +AC_CHECK_FUNCS(tgetent) +if test "x$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 $VERSION done. Now type \"make\"." fi]) # Like AC_CONFIG_HEADER, but automatically create stamp file. diff --git a/configure b/configure index cf0168c8..dad5f3fe 100755 --- a/configure +++ b/configure @@ -2317,9 +2317,163 @@ ginac_warning_txt="$ginac_warning_txt " ginac_warning=yes fi +LIBTERMCAP= +for ac_func in tgetent +do +echo $ac_n "checking for $ac_func""... $ac_c" 1>&6 +echo "configure:2325: checking for $ac_func" >&5 +if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +/* Override any gcc2 internal prototype to avoid an error. */ +#ifdef __cplusplus +extern "C" +#endif +/* We use char because int might match the return type of a gcc2 + builtin and then its argument prototype would still apply. */ +char $ac_func(); + +int main() { + +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined (__stub_$ac_func) || defined (__stub___$ac_func) +choke me +#else +$ac_func(); +#endif + +; return 0; } +EOF +if { (eval echo configure:2356: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then + rm -rf conftest* + eval "ac_cv_func_$ac_func=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_func_$ac_func=no" +fi +rm -f conftest* +fi + +if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then + echo "$ac_t""yes" 1>&6 + ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` + cat >> confdefs.h <&6 +fi +done + +if test "x$ac_cv_func_tgetent" = "xyes"; then + : +else + echo $ac_n "checking for tgetent in -lncurses""... $ac_c" 1>&6 +echo "configure:2384: checking for tgetent in -lncurses" >&5 +ac_lib_var=`echo ncurses'_'tgetent | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-lncurses $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + LIBTERMCAP="-lncurses" +else + echo "$ac_t""no" 1>&6 +fi + + if test -z "$LIBTERMCAP"; then + echo $ac_n "checking for tgetent in -ltermcap""... $ac_c" 1>&6 +echo "configure:2428: checking for tgetent in -ltermcap" >&5 +ac_lib_var=`echo termcap'_'tgetent | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-ltermcap $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + LIBTERMCAP="-ltermcap" +else + echo "$ac_t""no" 1>&6 +fi + + fi +fi + + save_LIBS=$LIBS +LIBS="$LIBTERMCAP $LIBS" echo $ac_n "checking for readline in -lreadline""... $ac_c" 1>&6 -echo "configure:2323: checking for readline in -lreadline" >&5 +echo "configure:2477: checking for readline in -lreadline" >&5 ac_lib_var=`echo readline'_'readline | sed 'y%./+-%__p_%'` if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 @@ -2327,7 +2481,7 @@ else ac_save_LIBS="$LIBS" LIBS="-lreadline $LIBS" cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then +if { (eval echo configure:2499: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then rm -rf conftest* eval "ac_cv_lib_$ac_lib_var=yes" else @@ -2380,7 +2534,7 @@ LIBS=$save_LIBS echo $ac_n "checking for cout in -lstdc++""... $ac_c" 1>&6 -echo "configure:2384: checking for cout in -lstdc++" >&5 +echo "configure:2538: checking for cout in -lstdc++" >&5 ac_lib_var=`echo stdc++'_'cout | sed 'y%./+-%__p_%'` if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 @@ -2388,7 +2542,7 @@ else ac_save_LIBS="$LIBS" LIBS="-lstdc++ $LIBS" cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then +if { (eval echo configure:2560: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then rm -rf conftest* eval "ac_cv_lib_$ac_lib_var=yes" else @@ -2434,17 +2588,17 @@ for ac_hdr in iostream vector map string list typeinfo iterator stdexcept algori do ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'` echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6 -echo "configure:2438: checking for $ac_hdr" >&5 +echo "configure:2592: checking for $ac_hdr" >&5 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else cat > conftest.$ac_ext < EOF ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" -{ (eval echo configure:2448: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } +{ (eval echo configure:2602: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"` if test -z "$ac_err"; then rm -rf conftest* @@ -2475,17 +2629,17 @@ for ac_hdr in sstream strstream do ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'` echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6 -echo "configure:2479: checking for $ac_hdr" >&5 +echo "configure:2633: checking for $ac_hdr" >&5 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else cat > conftest.$ac_ext < EOF ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" -{ (eval echo configure:2489: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } +{ (eval echo configure:2643: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"` if test -z "$ac_err"; then rm -rf conftest* @@ -2517,17 +2671,17 @@ done do ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'` echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6 -echo "configure:2521: checking for $ac_hdr" >&5 +echo "configure:2675: checking for $ac_hdr" >&5 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else cat > conftest.$ac_ext < EOF ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" -{ (eval echo configure:2531: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } +{ (eval echo configure:2685: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"` if test -z "$ac_err"; then rm -rf conftest* @@ -2554,17 +2708,17 @@ for ac_hdr in cln.h do ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'` echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6 -echo "configure:2558: checking for $ac_hdr" >&5 +echo "configure:2712: checking for $ac_hdr" >&5 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else cat > conftest.$ac_ext < EOF ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" -{ (eval echo configure:2568: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } +{ (eval echo configure:2722: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"` if test -z "$ac_err"; then rm -rf conftest* @@ -2599,7 +2753,7 @@ done echo $ac_n "checking for doublefactorial in -lcln""... $ac_c" 1>&6 -echo "configure:2603: checking for doublefactorial in -lcln" >&5 +echo "configure:2757: checking for doublefactorial in -lcln" >&5 saved_LIBS="${LIBS}" if eval "test \"`echo '$''{'ginac_cv_lib_cln_link'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 @@ -2608,14 +2762,14 @@ else case "${ac_cv_header_cln_cln_h}" in "yes") cat > conftest.$ac_ext < int main() { doublefactorial(2); ; return 0; } EOF -if { (eval echo configure:2619: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then +if { (eval echo configure:2773: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then rm -rf conftest* ginac_cv_lib_cln_link="-lcln" else @@ -2628,14 +2782,14 @@ rm -f conftest* ;; *) cat > conftest.$ac_ext < int main() { doublefactorial(2); ; return 0; } EOF -if { (eval echo configure:2639: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then +if { (eval echo configure:2793: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then rm -rf conftest* ginac_cv_lib_cln_link="-lcln" else @@ -2676,7 +2830,7 @@ GINACLIB_LIBS=$LIBS # Extract the first word of "doxygen", so it can be a program name with args. set dummy doxygen; ac_word=$2 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 -echo "configure:2680: checking for $ac_word" >&5 +echo "configure:2834: checking for $ac_word" >&5 if eval "test \"`echo '$''{'ac_cv_path_DOXYGEN'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else @@ -2712,7 +2866,7 @@ fi # Extract the first word of "latex", so it can be a program name with args. set dummy latex; ac_word=$2 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 -echo "configure:2716: checking for $ac_word" >&5 +echo "configure:2870: checking for $ac_word" >&5 if eval "test \"`echo '$''{'ac_cv_path_LATEX'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else @@ -2748,7 +2902,7 @@ fi # Extract the first word of "makeindex", so it can be a program name with args. set dummy makeindex; ac_word=$2 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 -echo "configure:2752: checking for $ac_word" >&5 +echo "configure:2906: checking for $ac_word" >&5 if eval "test \"`echo '$''{'ac_cv_path_MAKEINDEX'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else @@ -2784,7 +2938,7 @@ fi # Extract the first word of "dvips", so it can be a program name with args. set dummy dvips; ac_word=$2 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 -echo "configure:2788: checking for $ac_word" >&5 +echo "configure:2942: checking for $ac_word" >&5 if eval "test \"`echo '$''{'ac_cv_path_DVIPS'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else @@ -2820,7 +2974,7 @@ fi # Extract the first word of "fig2dev", so it can be a program name with args. set dummy fig2dev; ac_word=$2 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 -echo "configure:2824: checking for $ac_word" >&5 +echo "configure:2978: checking for $ac_word" >&5 if eval "test \"`echo '$''{'ac_cv_path_FIG2DEV'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else @@ -2888,7 +3042,7 @@ if test "x$with_cint" != "xno"; then # Extract the first word of "cint", so it can be a program name with args. set dummy cint; ac_word=$2 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 -echo "configure:2892: checking for $ac_word" >&5 +echo "configure:3046: checking for $ac_word" >&5 if eval "test \"`echo '$''{'ac_cv_path_CINT'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else @@ -2924,7 +3078,7 @@ fi # Extract the first word of "makecint", so it can be a program name with args. set dummy makecint; ac_word=$2 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 -echo "configure:2928: checking for $ac_word" >&5 +echo "configure:3082: checking for $ac_word" >&5 if eval "test \"`echo '$''{'ac_cv_path_MAKECINT'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else @@ -3169,6 +3323,7 @@ s%@LEXLIB@%$LEXLIB%g s%@CPP@%$CPP%g s%@LEX_OUTPUT_ROOT@%$LEX_OUTPUT_ROOT%g s%@YACC@%$YACC%g +s%@LIBTERMCAP@%$LIBTERMCAP%g s%@GINSH_LIBS@%$GINSH_LIBS%g s%@GINACLIB_CPPFLAGS@%$GINACLIB_CPPFLAGS%g s%@GINACLIB_LIBS@%$GINACLIB_LIBS%g @@ -3419,21 +3574,21 @@ test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1 if test "x${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 $VERSION done. Now type \"make\"." fi diff --git a/configure.in b/configure.in index b4dfde6e..14d9e708 100644 --- a/configure.in +++ b/configure.in @@ -91,7 +91,9 @@ AC_CHECK_HEADERS(readline/readline.h readline/history.h) if test "x${ac_cv_header_readline_readline_h}" != "xyes" -o "x${ac_cv_header_readline_history_h}" != "xyes"; then GINAC_WARNING([I could not find the headers for libreadline (needed for building ginsh).]) fi +GINAC_TERMCAP save_LIBS=$LIBS +LIBS="$LIBTERMCAP $LIBS" AC_CHECK_LIB(readline, readline) if test "x${ac_cv_lib_readline_readline}" != "xyes"; then GINAC_WARNING([I could not find libreadline (needed by ginsh).])