| 1 | # Check for readline |
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| 2 | |
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| 3 | AC_DEFUN([SING_CHECK_READLINE], |
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| 4 | [ |
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| 5 | |
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| 6 | #AC_ARG_WITH([readline], |
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| 7 | # [AS_HELP_STRING([--without-readline], |
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| 8 | # [disable support for readline])], |
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| 9 | # [], |
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| 10 | # [with_readline=yes]) |
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| 11 | |
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| 12 | |
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| 13 | AC_CHECK_HEADERS(sys/file.h sys/ioctl.h sys/time.h sys/times.h sys/types.h \ |
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| 14 | sys/stat.h fcntl.h sys/param.h pwd.h asm/sigcontext.h pwd.h termcap.h \ |
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| 15 | termios.h term.h readline/readline.h) |
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| 16 | |
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| 17 | AC_ARG_WITH( |
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| 18 | readline, |
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| 19 | [ --with-readline=[dynamic,static,no,ncurses] |
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| 20 | use dynamic/static/no readline/ncurses for fancy display]) |
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| 21 | |
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| 22 | if test "$with_readline" != no; then |
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| 23 | AC_CHECK_LIB(ncurses,tgetent,,\ |
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| 24 | AC_CHECK_LIB(curses,tgetent,,\ |
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| 25 | AC_CHECK_LIB(termcap,tgetent))) |
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| 26 | fi |
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| 27 | |
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| 28 | # readline |
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| 29 | if test "$with_readline" = dynamic && test "$ac_have_dl" != yes; then |
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| 30 | AC_MSG_WARN(can not build dynamic readline without dynamic linking) |
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| 31 | with_readline=static |
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| 32 | fi |
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| 33 | |
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| 34 | |
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| 35 | if test "$with_readline" != dynamic && test "$with_readline" != no; then |
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| 36 | AC_LANG_SAVE |
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| 37 | AC_LANG([C++]) |
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| 38 | AC_CHECK_LIB(readline, readline) |
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| 39 | AC_CHECK_HEADERS(readline/readline.h readline/history.h) |
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| 40 | if test "$ac_cv_lib_readline_readline" = yes && \ |
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| 41 | test "$ac_cv_header_readline_readline_h" = yes; then |
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| 42 | AC_MSG_CHECKING(whether readline.h is ok) |
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| 43 | AC_CACHE_VAL(ac_cv_header_readline_readline_h_ok, |
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| 44 | AC_TRY_LINK( |
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| 45 | #include<unistd.h> |
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| 46 | #include<stdio.h> |
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| 47 | #include<readline/readline.h> |
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| 48 | #ifdef HAVE_READLINE_HISTORY_H |
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| 49 | #include<readline/history.h> |
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| 50 | #endif |
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| 51 | , |
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| 52 | , |
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| 53 | ac_cv_header_readline_readline_h_ok="yes", |
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| 54 | ac_cv_header_readline_readline_h_ok="no", |
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| 55 | )) |
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| 56 | AC_MSG_RESULT($ac_cv_header_readline_readline_h_ok) |
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| 57 | if test "$ac_cv_header_readline_readline_h_ok" != yes; then |
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| 58 | #not ok -- try once more with explicitly declaring everything |
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| 59 | AC_MSG_CHECKING(whether or not we nevertheless can use readline) |
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| 60 | AC_CACHE_VAL(ac_cv_have_readline, |
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| 61 | AC_TRY_LINK( |
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| 62 | #include <stdio.h> |
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| 63 | extern "C" |
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| 64 | { |
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| 65 | extern char * rl_readline_name; |
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| 66 | extern char *rl_line_buffer; |
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| 67 | char *filename_completion_function(); |
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| 68 | typedef char **CPPFunction (); |
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| 69 | extern char ** completion_matches (); |
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| 70 | extern CPPFunction * rl_attempted_completion_function; |
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| 71 | extern FILE * rl_outstream; |
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| 72 | char * readline (); |
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| 73 | void add_history (); |
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| 74 | int write_history (); |
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| 75 | int read_history(); |
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| 76 | } |
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| 77 | #ifndef NULL |
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| 78 | #define NULL 0 |
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| 79 | #endif |
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| 80 | , |
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| 81 | rl_readline_name=NULL; |
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| 82 | *rl_line_buffer=1; |
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| 83 | completion_matches(NULL, filename_completion_function); |
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| 84 | rl_attempted_completion_function = (CPPFunction *) NULL; |
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| 85 | rl_outstream=NULL; |
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| 86 | readline(NULL); |
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| 87 | add_history(NULL); |
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| 88 | read_history(NULL); |
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| 89 | write_history(NULL); |
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| 90 | , |
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| 91 | ac_cv_have_readline="yes" |
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| 92 | , |
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| 93 | ac_cv_have_readline="no" |
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| 94 | )) |
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| 95 | AC_MSG_RESULT($ac_cv_have_readline) |
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| 96 | else |
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| 97 | AC_DEFINE([READLINE_READLINE_H_OK], [1], [Use readline.h]) |
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| 98 | ac_cv_have_readline="yes" |
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| 99 | fi |
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| 100 | fi |
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| 101 | if test "$ac_cv_have_readline" = yes; then |
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| 102 | AC_DEFINE([HAVE_READLINE], [1], [Use readline]) |
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| 103 | fi |
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| 104 | AC_LANG_RESTORE |
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| 105 | fi |
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| 106 | |
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| 107 | AC_MSG_CHECKING(which readline to use) |
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| 108 | if test "$ac_cv_with_readline" = dynamic; then |
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| 109 | AC_MSG_RESULT(dynamic) |
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| 110 | AC_DEFINE([HAVE_DYN_RL], [1], [Use dynamic readline]) |
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| 111 | elif test "$ac_cv_have_readline" = yes; then |
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| 112 | AC_MSG_RESULT(static) |
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| 113 | elif test "$ac_cv_singuname" = PowerMacintosh-darwin; then |
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| 114 | AC_MSG_ERROR(building without readline impossible on PowerMacintosh-darwin) |
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| 115 | else |
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| 116 | AC_MSG_RESULT(none) |
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| 117 | AC_MSG_WARN(building without readline: disabling fancy display) |
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| 118 | fi |
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| 119 | |
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| 120 | ]) |
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