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Viewing changes to m4/readline.m4

  • Committer: Arnold D. Robbins
  • Date: 2021-09-10 09:17:33 UTC
  • mfrom: (1472.2.20)
  • Revision ID: git-v1:dcb93a4544f44beb127248327818f6bbdbe18043
Merge branch 'gawk-5.1-stable'

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Lines of Context:
m4/readline.m4
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AC_DEFUN([GAWK_CHECK_READLINE],
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[
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  AC_ARG_WITH([readline],
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     AC_HELP_STRING([--with-readline=DIR],
 
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     AS_HELP_STRING([--with-readline=DIR],
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        [look for the readline library in DIR]),
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     [_do_readline=$withval],[_do_readline=yes])
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        _combo="-lreadline${_termcap:+ $_termcap}"
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        LIBS="$LIBS $_combo"
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        AC_MSG_CHECKING([whether readline via \"$_combo\" is present and sane])
 
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        AC_MSG_CHECKING([whether readline via "$_combo" is present and sane])
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        AC_TRY_RUN(
 
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        AC_RUN_IFELSE(
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dnl source program:
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AC_LANG_SOURCE([[#include <stdio.h>
 
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[AC_LANG_SOURCE([[#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <readline/readline.h>
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        /* some printfs don't handle NULL for %s */
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        printf("got <%s>\n", line ? line : "(NULL)");
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        return 0;
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}]]),
 
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}]])],
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dnl action if true:
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            [_found_readline=yes],
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dnl action if false:
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            [_found_readline=no],
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dnl action if cross compiling:
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                AC_TRY_LINK([#include <stdio.h>
 
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                [AC_LINK_IFELSE(
 
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                        [AC_LANG_PROGRAM([[#include <stdio.h>
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#include <readline/readline.h>
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#include <readline/history.h>],         dnl includes
 
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#include <readline/history.h>]],                dnl includes
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                        dnl function body
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                        [
 
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                        [[
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        int fd;
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        char *line;
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        /* some printfs don't handle NULL for %s */
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        printf("got <%s>\n", line ? line : "(NULL)");
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],
 
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]])],
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dnl action if found:
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                        [_found_readline=yes],
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dnl action if not found:
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                        [_found_readline=no]
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                )
 
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                )]
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        )
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        AC_MSG_RESULT([$_found_readline])