-# $Header: /cvsroot/pgsql/config/programs.m4,v 1.4 2001/02/10 22:31:42 petere Exp $
+# config/programs.m4
+
+
+# PGAC_PATH_BISON
+# ---------------
+# Look for Bison, set the output variable BISON to its path if found.
+# Reject versions before 1.875 (they have bugs or capacity limits).
+# Note we do not accept other implementations of yacc.
+
+AC_DEFUN([PGAC_PATH_BISON],
+[# Let the user override the search
+if test -z "$BISON"; then
+ AC_PATH_PROGS(BISON, bison)
+fi
+
+if test "$BISON"; then
+ pgac_bison_version=`$BISON --version 2>/dev/null | sed q`
+ AC_MSG_NOTICE([using $pgac_bison_version])
+ if echo "$pgac_bison_version" | $AWK '{ if ([$]4 < 1.875) exit 0; else exit 1;}'
+ then
+ AC_MSG_WARN([
+*** The installed version of Bison, $BISON, is too old to use with PostgreSQL.
+*** Bison version 1.875 or later is required, but this is $pgac_bison_version.])
+ BISON=""
+ fi
+fi
+
+if test -z "$BISON"; then
+ AC_MSG_WARN([
+*** Without Bison you will not be able to build PostgreSQL from Git nor
+*** change any of the parser definition files. You can obtain Bison from
+*** a GNU mirror site. (If you are using the official distribution of
+*** PostgreSQL then you do not need to worry about this, because the Bison
+*** output is pre-generated.)])
+fi
+# We don't need AC_SUBST(BISON) because AC_PATH_PROG did it
+AC_SUBST(BISONFLAGS)
+])# PGAC_PATH_BISON
+
# PGAC_PATH_FLEX
# --------------
# Look for Flex, set the output variable FLEX to its path if found.
-# Avoid the buggy version 2.5.3. Also find Flex if its installed
-# under `lex', but do not accept other Lex programs.
+# Reject versions before 2.5.31, as we need a reasonably non-buggy reentrant
+# scanner. (Note: the well-publicized security problem in 2.5.31 does not
+# affect Postgres, and there are still distros shipping patched 2.5.31,
+# so allow it.) Also find Flex if its installed under `lex', but do not
+# accept other Lex programs.
AC_DEFUN([PGAC_PATH_FLEX],
[AC_CACHE_CHECK([for flex], pgac_cv_path_flex,
pgac_cv_path_flex=$FLEX
else
pgac_save_IFS=$IFS
- IFS=:
+ IFS=$PATH_SEPARATOR
for pgac_dir in $PATH; do
+ IFS=$pgac_save_IFS
if test -z "$pgac_dir" || test x"$pgac_dir" = x"."; then
pgac_dir=`pwd`
fi
then
echo '%%' > conftest.l
if $pgac_candidate -t conftest.l 2>/dev/null | grep FLEX_SCANNER >/dev/null 2>&1; then
- if $pgac_candidate --version | grep '2\.5\.3' >/dev/null 2>&1; then
- pgac_broken_flex=$pgac_candidate
- continue
+ pgac_flex_version=`$pgac_candidate --version 2>/dev/null`
+ if echo "$pgac_flex_version" | sed ['s/[.a-z]/ /g'] | $AWK '{ if ([$]1 = 2 && [$]2 = 5 && [$]3 >= 31) exit 0; else exit 1;}'
+ then
+ pgac_cv_path_flex=$pgac_candidate
+ break 2
+ else
+ AC_MSG_WARN([
+*** The installed version of Flex, $pgac_candidate, is too old to use with PostgreSQL.
+*** Flex version 2.5.31 or later is required, but this is $pgac_flex_version.])
fi
-
- pgac_cv_path_flex=$pgac_candidate
- break 2
fi
fi
done
done
- IFS=$pgac_save_IFS
- rm -f conftest.l
+ rm -f conftest.l lex.yy.c
: ${pgac_cv_path_flex=no}
fi
])[]dnl AC_CACHE_CHECK
if test x"$pgac_cv_path_flex" = x"no"; then
- if test -n "$pgac_broken_flex"; then
- AC_MSG_WARN([
-*** The Flex version 2.5.3 you have at $pgac_broken_flex contains a bug. You
-*** should get version 2.5.4 or later.])
- fi
-
AC_MSG_WARN([
-*** Without Flex you will not be able to build PostgreSQL from CVS or
+*** Without Flex you will not be able to build PostgreSQL from Git nor
*** change any of the scanner definition files. You can obtain Flex from
*** a GNU mirror site. (If you are using the official distribution of
*** PostgreSQL then you do not need to worry about this because the Flex
*** output is pre-generated.)])
-fi
-if test x"$pgac_cv_path_flex" = x"no"; then
FLEX=
else
FLEX=$pgac_cv_path_flex
+ pgac_flex_version=`$FLEX --version 2>/dev/null`
+ AC_MSG_NOTICE([using $pgac_flex_version])
fi
AC_SUBST(FLEX)
# Add the required flags to LIBS, define HAVE_LIBREADLINE.
AC_DEFUN([PGAC_CHECK_READLINE],
-[AC_MSG_CHECKING([for readline])
+[AC_REQUIRE([AC_CANONICAL_HOST])
-AC_CACHE_VAL([pgac_cv_check_readline],
+AC_CACHE_CHECK([for library containing readline], [pgac_cv_check_readline],
[pgac_cv_check_readline=no
-for pgac_lib in "" " -ltermcap" " -lncurses" " -lcurses" ; do
- for pgac_rllib in -lreadline -ledit ; do
- pgac_save_LIBS=$LIBS
- LIBS="${pgac_rllib}${pgac_lib} $LIBS"
- AC_TRY_LINK_FUNC([readline], [pgac_cv_check_readline="${pgac_rllib}${pgac_lib}"; break 2])
- LIBS=$pgac_save_LIBS
+pgac_save_LIBS=$LIBS
+if test x"$with_libedit_preferred" != x"yes"
+then READLINE_ORDER="-lreadline -ledit"
+else READLINE_ORDER="-ledit -lreadline"
+fi
+for pgac_rllib in $READLINE_ORDER ; do
+ for pgac_lib in "" " -ltermcap" " -lncurses" " -lcurses" ; do
+ LIBS="${pgac_rllib}${pgac_lib} $pgac_save_LIBS"
+ AC_TRY_LINK_FUNC([readline], [[
+ # Older NetBSD, OpenBSD, and Irix have a broken linker that does not
+ # recognize dependent libraries; assume curses is needed if we didn't
+ # find any dependency.
+ case $host_os in
+ netbsd* | openbsd* | irix*)
+ if test x"$pgac_lib" = x"" ; then
+ pgac_lib=" -lcurses"
+ fi ;;
+ esac
+
+ pgac_cv_check_readline="${pgac_rllib}${pgac_lib}"
+ break
+ ]])
done
+ if test "$pgac_cv_check_readline" != no ; then
+ break
+ fi
done
LIBS=$pgac_save_LIBS
-])[]dnl AC_CACHE_VAL
+])[]dnl AC_CACHE_CHECK
if test "$pgac_cv_check_readline" != no ; then
- AC_DEFINE(HAVE_LIBREADLINE)
LIBS="$pgac_cv_check_readline $LIBS"
- AC_MSG_RESULT([yes ($pgac_cv_check_readline)])
-else
- AC_MSG_RESULT(no)
-fi])# PGAC_CHECK_READLINE
+ AC_DEFINE(HAVE_LIBREADLINE, 1, [Define if you have a function readline library])
+fi
+
+])# PGAC_CHECK_READLINE
+
+
+
+# PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
+# ---------------------------------------
+# Readline versions < 2.1 don't have rl_completion_append_character
+
+AC_DEFUN([PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER],
+[AC_CACHE_CHECK([for rl_completion_append_character], pgac_cv_var_rl_completion_append_character,
+[AC_TRY_LINK([#include <stdio.h>
+#ifdef HAVE_READLINE_READLINE_H
+# include <readline/readline.h>
+#elif defined(HAVE_READLINE_H)
+# include <readline.h>
+#endif
+],
+[rl_completion_append_character = 'x';],
+[pgac_cv_var_rl_completion_append_character=yes],
+[pgac_cv_var_rl_completion_append_character=no])])
+if test x"$pgac_cv_var_rl_completion_append_character" = x"yes"; then
+AC_DEFINE(HAVE_RL_COMPLETION_APPEND_CHARACTER, 1,
+ [Define to 1 if you have the global variable 'rl_completion_append_character'.])
+fi])# PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
+
+
+
+# PGAC_CHECK_GETTEXT
+# ------------------
+# We check for bind_textdomain_codeset() not just gettext(). GNU gettext
+# before 0.10.36 does not have that function, and is generally too incomplete
+# to be usable.
+
+AC_DEFUN([PGAC_CHECK_GETTEXT],
+[
+ AC_SEARCH_LIBS(bind_textdomain_codeset, intl, [],
+ [AC_MSG_ERROR([a gettext implementation is required for NLS])])
+ AC_CHECK_HEADER([libintl.h], [],
+ [AC_MSG_ERROR([header file <libintl.h> is required for NLS])])
+ AC_CHECK_PROGS(MSGFMT, msgfmt)
+ if test -z "$MSGFMT"; then
+ AC_MSG_ERROR([msgfmt is required for NLS])
+ fi
+ AC_CHECK_PROGS(MSGMERGE, msgmerge)
+ AC_CHECK_PROGS(XGETTEXT, xgettext)
+])# PGAC_CHECK_GETTEXT
+
+
+
+# PGAC_CHECK_STRIP
+# ----------------
+# Check for a 'strip' program, and figure out if that program can
+# strip libraries.
+
+AC_DEFUN([PGAC_CHECK_STRIP],
+[
+ AC_CHECK_TOOL(STRIP, strip, :)
+
+ AC_MSG_CHECKING([whether it is possible to strip libraries])
+ if test x"$STRIP" != x"" && "$STRIP" -V 2>&1 | grep "GNU strip" >/dev/null; then
+ STRIP_STATIC_LIB="$STRIP -x"
+ STRIP_SHARED_LIB="$STRIP --strip-unneeded"
+ AC_MSG_RESULT(yes)
+ else
+ STRIP_STATIC_LIB=:
+ STRIP_SHARED_LIB=:
+ AC_MSG_RESULT(no)
+ fi
+ AC_SUBST(STRIP_STATIC_LIB)
+ AC_SUBST(STRIP_SHARED_LIB)
+])# PGAC_CHECK_STRIP
OSDN Git Service
