| dnl need: prefix exec_prefix libdir includedir CC TERMCAP_LIB |
| dnl require: |
| dnl AC_PROG_CC |
| dnl BASH_CHECK_LIB_TERMCAP |
| |
| AC_DEFUN([RL_LIB_READLINE_VERSION], |
| [ |
| AC_REQUIRE([BASH_CHECK_LIB_TERMCAP]) |
| |
| AC_MSG_CHECKING([version of installed readline library]) |
| |
| # What a pain in the ass this is. |
| |
| # save cpp and ld options |
| _save_CFLAGS="$CFLAGS" |
| _save_LDFLAGS="$LDFLAGS" |
| _save_LIBS="$LIBS" |
| |
| # Don't set ac_cv_rl_prefix if the caller has already assigned a value. This |
| # allows the caller to do something like $_rl_prefix=$withval if the user |
| # specifies --with-installed-readline=PREFIX as an argument to configure |
| |
| if test -z "$ac_cv_rl_prefix"; then |
| test "x$prefix" = xNONE && ac_cv_rl_prefix=$ac_default_prefix || ac_cv_rl_prefix=${prefix} |
| fi |
| |
| eval ac_cv_rl_includedir=${ac_cv_rl_prefix}/include |
| eval ac_cv_rl_libdir=${ac_cv_rl_prefix}/lib |
| |
| LIBS="$LIBS -lreadline ${TERMCAP_LIB}" |
| CFLAGS="$CFLAGS -I${ac_cv_rl_includedir}" |
| LDFLAGS="$LDFLAGS -L${ac_cv_rl_libdir}" |
| |
| AC_CACHE_VAL(ac_cv_rl_version, |
| [AC_TRY_RUN([ |
| #include <stdio.h> |
| #include <readline/readline.h> |
| |
| extern int rl_gnu_readline_p; |
| |
| main() |
| { |
| FILE *fp; |
| fp = fopen("conftest.rlv", "w"); |
| if (fp == 0) |
| exit(1); |
| if (rl_gnu_readline_p != 1) |
| fprintf(fp, "0.0\n"); |
| else |
| fprintf(fp, "%s\n", rl_library_version ? rl_library_version : "0.0"); |
| fclose(fp); |
| exit(0); |
| } |
| ], |
| ac_cv_rl_version=`cat conftest.rlv`, |
| ac_cv_rl_version='0.0', |
| ac_cv_rl_version='4.2')]) |
| |
| CFLAGS="$_save_CFLAGS" |
| LDFLAGS="$_save_LDFLAGS" |
| LIBS="$_save_LIBS" |
| |
| RL_MAJOR=0 |
| RL_MINOR=0 |
| |
| # ( |
| case "$ac_cv_rl_version" in |
| 2*|3*|4*|5*|6*|7*|8*|9*) |
| RL_MAJOR=`echo $ac_cv_rl_version | sed 's:\..*$::'` |
| RL_MINOR=`echo $ac_cv_rl_version | sed -e 's:^.*\.::' -e 's:[[a-zA-Z]]*$::'` |
| ;; |
| esac |
| |
| # ((( |
| case $RL_MAJOR in |
| [[0-9][0-9]]) _RL_MAJOR=$RL_MAJOR ;; |
| [[0-9]]) _RL_MAJOR=0$RL_MAJOR ;; |
| *) _RL_MAJOR=00 ;; |
| esac |
| |
| # ((( |
| case $RL_MINOR in |
| [[0-9][0-9]]) _RL_MINOR=$RL_MINOR ;; |
| [[0-9]]) _RL_MINOR=0$RL_MINOR ;; |
| *) _RL_MINOR=00 ;; |
| esac |
| |
| RL_VERSION="0x${_RL_MAJOR}${_RL_MINOR}" |
| |
| # Readline versions greater than 4.2 have these defines in readline.h |
| |
| if test $ac_cv_rl_version = '0.0' ; then |
| AC_MSG_WARN([Could not test version of installed readline library.]) |
| elif test $RL_MAJOR -gt 4 || { test $RL_MAJOR = 4 && test $RL_MINOR -gt 2 ; } ; then |
| # set these for use by the caller |
| RL_PREFIX=$ac_cv_rl_prefix |
| RL_LIBDIR=$ac_cv_rl_libdir |
| RL_INCLUDEDIR=$ac_cv_rl_includedir |
| AC_MSG_RESULT($ac_cv_rl_version) |
| else |
| |
| AC_DEFINE_UNQUOTED(RL_READLINE_VERSION, $RL_VERSION, [encoded version of the installed readline library]) |
| AC_DEFINE_UNQUOTED(RL_VERSION_MAJOR, $RL_MAJOR, [major version of installed readline library]) |
| AC_DEFINE_UNQUOTED(RL_VERSION_MINOR, $RL_MINOR, [minor version of installed readline library]) |
| |
| AC_SUBST(RL_VERSION) |
| AC_SUBST(RL_MAJOR) |
| AC_SUBST(RL_MINOR) |
| |
| # set these for use by the caller |
| RL_PREFIX=$ac_cv_rl_prefix |
| RL_LIBDIR=$ac_cv_rl_libdir |
| RL_INCLUDEDIR=$ac_cv_rl_includedir |
| |
| AC_MSG_RESULT($ac_cv_rl_version) |
| |
| fi |
| ]) |
