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REL_18_3
config/programs.m4
362 строки
11 KB
Tom Lane
Don't put library-supplied -L/-I switches before user-supplied ones.
29 июл 2025, 22:17
29 июл 2025, 22:17
8e5e3ff
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# config/programs.m4 # PGAC_PATH_PROGS # --------------- # This wrapper for AC_PATH_PROGS behaves like that macro except when # VARIABLE is already set; in that case we just accept the value verbatim. # (AC_PATH_PROGS would accept it only if it looks like an absolute path.) # A desirable future improvement would be to convert a non-absolute-path # input into absolute form. AC_DEFUN([PGAC_PATH_PROGS], [if test -z "$$1"; then AC_PATH_PROGS($@) else # Report the value of $1 in configure's output in all cases. AC_MSG_CHECKING([for $1]) AC_MSG_RESULT([$$1]) fi ]) # PGAC_PATH_BISON # --------------- # Look for Bison, set the output variable BISON to its path if found. # Reject versions before 2.3 (the earliest version in the buildfarm # as of 2022). Note we do not accept other implementations of yacc. AC_DEFUN([PGAC_PATH_BISON], [PGAC_PATH_PROGS(BISON, bison) 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 < 2.3) exit 0; else exit 1;}' then AC_MSG_ERROR([ *** The installed version of Bison, $BISON, is too old to use with PostgreSQL. *** Bison version 2.3 or later is required, but this is $pgac_bison_version.]) fi # Bison >=3.0 issues warnings about %name-prefix="base_yy", instead # of the now preferred %name-prefix "base_yy", but the latter # doesn't work with Bison 2.3 or less. So for now we silence the # deprecation warnings. if echo "$pgac_bison_version" | $AWK '{ if ([$]4 >= 3) exit 0; else exit 1;}' then BISONFLAGS="$BISONFLAGS -Wno-deprecated" fi fi if test -z "$BISON"; then AC_MSG_ERROR([bison not found]) fi dnl We don't need AC_SUBST(BISON) because PGAC_PATH_PROGS did it AC_SUBST(BISONFLAGS) ])# PGAC_PATH_BISON # PGAC_PATH_FLEX # -------------- # Look for Flex, set the output variable FLEX to its path if found. AC_DEFUN([PGAC_PATH_FLEX], [PGAC_PATH_PROGS(FLEX, flex) if test -z "$FLEX"; then AC_MSG_ERROR([flex not found]) fi pgac_flex_version=`$FLEX --version 2>/dev/null` AC_MSG_NOTICE([using $pgac_flex_version]) AC_SUBST(FLEX) AC_SUBST(FLEXFLAGS) ])# PGAC_PATH_FLEX # PGAC_LDAP_SAFE # -------------- # PostgreSQL sometimes loads libldap_r and plain libldap into the same # process. Check for OpenLDAP versions known not to tolerate doing so; assume # non-OpenLDAP implementations are safe. The dblink test suite exercises the # hazardous interaction directly. AC_DEFUN([PGAC_LDAP_SAFE], [AC_CACHE_CHECK([for compatible LDAP implementation], [pgac_cv_ldap_safe], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [#include <ldap.h> #if !defined(LDAP_VENDOR_VERSION) || \ (defined(LDAP_API_FEATURE_X_OPENLDAP) && \ LDAP_VENDOR_VERSION >= 20424 && LDAP_VENDOR_VERSION <= 20431) choke me #endif], [])], [pgac_cv_ldap_safe=yes], [pgac_cv_ldap_safe=no])]) if test "$pgac_cv_ldap_safe" != yes; then AC_MSG_WARN([ *** With OpenLDAP versions 2.4.24 through 2.4.31, inclusive, each backend *** process that loads libpq (via WAL receiver, dblink, or postgres_fdw) and *** also uses LDAP will crash on exit.]) fi]) # PGAC_CHECK_READLINE # ------------------- # Check for the readline library and dependent libraries, either # termcap or curses. Also try libedit, since NetBSD's is compatible. # Add the required flags to LIBS, define HAVE_LIBREADLINE. AC_DEFUN([PGAC_CHECK_READLINE], [AC_REQUIRE([AC_CANONICAL_HOST]) AC_CACHE_CHECK([for library containing readline], [pgac_cv_check_readline], [pgac_cv_check_readline=no 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 and OpenBSD have a broken linker that does not # recognize dependent libraries; assume curses is needed if we didn't # find any dependency. case $host_os in netbsd* | openbsd*) if test x"$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_CHECK if test "$pgac_cv_check_readline" != no ; then LIBS="$pgac_cv_check_readline $LIBS" AC_DEFINE(HAVE_LIBREADLINE, 1, [Define if you have a function readline library]) fi ])# PGAC_CHECK_READLINE # PGAC_READLINE_VARIABLES # ----------------------- # Some Readline versions lack rl_completion_suppress_quote. # Libedit lacks rl_filename_quote_characters and rl_filename_quoting_function AC_DEFUN([PGAC_READLINE_VARIABLES], [AC_CACHE_CHECK([for rl_completion_suppress_quote], pgac_cv_var_rl_completion_suppress_quote, [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <stdio.h> #if defined(HAVE_READLINE_READLINE_H) #include <readline/readline.h> #elif defined(HAVE_EDITLINE_READLINE_H) #include <editline/readline.h> #elif defined(HAVE_READLINE_H) #include <readline.h> #endif ], [rl_completion_suppress_quote = 1;])], [pgac_cv_var_rl_completion_suppress_quote=yes], [pgac_cv_var_rl_completion_suppress_quote=no])]) if test x"$pgac_cv_var_rl_completion_suppress_quote" = x"yes"; then AC_DEFINE(HAVE_RL_COMPLETION_SUPPRESS_QUOTE, 1, [Define to 1 if you have the global variable 'rl_completion_suppress_quote'.]) fi AC_CACHE_CHECK([for rl_filename_quote_characters], pgac_cv_var_rl_filename_quote_characters, [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <stdio.h> #if defined(HAVE_READLINE_READLINE_H) #include <readline/readline.h> #elif defined(HAVE_EDITLINE_READLINE_H) #include <editline/readline.h> #elif defined(HAVE_READLINE_H) #include <readline.h> #endif ], [rl_filename_quote_characters = "x";])], [pgac_cv_var_rl_filename_quote_characters=yes], [pgac_cv_var_rl_filename_quote_characters=no])]) if test x"$pgac_cv_var_rl_filename_quote_characters" = x"yes"; then AC_DEFINE(HAVE_RL_FILENAME_QUOTE_CHARACTERS, 1, [Define to 1 if you have the global variable 'rl_filename_quote_characters'.]) fi AC_CACHE_CHECK([for rl_filename_quoting_function], pgac_cv_var_rl_filename_quoting_function, [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <stdio.h> #if defined(HAVE_READLINE_READLINE_H) #include <readline/readline.h> #elif defined(HAVE_EDITLINE_READLINE_H) #include <editline/readline.h> #elif defined(HAVE_READLINE_H) #include <readline.h> #endif ], [rl_filename_quoting_function = 0;])], [pgac_cv_var_rl_filename_quoting_function=yes], [pgac_cv_var_rl_filename_quoting_function=no])]) if test x"$pgac_cv_var_rl_filename_quoting_function" = x"yes"; then AC_DEFINE(HAVE_RL_FILENAME_QUOTING_FUNCTION, 1, [Define to 1 if you have the global variable 'rl_filename_quoting_function'.]) fi ])# PGAC_READLINE_VARIABLES # 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])]) PGAC_PATH_PROGS(MSGFMT, msgfmt) AC_ARG_VAR(MSGFMT, [msgfmt program for NLS])dnl if test -z "$MSGFMT"; then AC_MSG_ERROR([msgfmt is required for NLS]) fi AC_CACHE_CHECK([for msgfmt flags], pgac_cv_msgfmt_flags, [if test x"$MSGFMT" != x"" && "$MSGFMT" --version 2>&1 | grep "GNU" >/dev/null; then pgac_cv_msgfmt_flags=-c fi]) AC_SUBST(MSGFMT_FLAGS, $pgac_cv_msgfmt_flags) PGAC_PATH_PROGS(MSGMERGE, msgmerge) PGAC_PATH_PROGS(XGETTEXT, xgettext) ])# PGAC_CHECK_GETTEXT # PGAC_CHECK_STRIP # ---------------- # Check for a 'strip' program, and figure out if that program can # strip libraries. AC_DEFUN([PGAC_CHECK_STRIP], [ AC_CHECK_TOOL(STRIP, strip, :) AC_MSG_CHECKING([whether it is possible to strip libraries]) if test x"$STRIP" != x"" && "$STRIP" -V 2>&1 | grep "GNU strip" >/dev/null; then STRIP_STATIC_LIB="$STRIP --strip-unneeded" STRIP_SHARED_LIB="$STRIP --strip-unneeded" AC_MSG_RESULT(yes) else case $host_os in darwin*) STRIP="$STRIP -x" STRIP_STATIC_LIB=$STRIP STRIP_SHARED_LIB=$STRIP AC_MSG_RESULT(yes) ;; *) STRIP_STATIC_LIB=: STRIP_SHARED_LIB=: AC_MSG_RESULT(no) ;; esac fi AC_SUBST(STRIP_STATIC_LIB) AC_SUBST(STRIP_SHARED_LIB) ])# PGAC_CHECK_STRIP # PGAC_CHECK_LIBCURL # ------------------ # Check for required libraries and headers, and test to see whether the current # installation of libcurl is thread-safe. AC_DEFUN([PGAC_CHECK_LIBCURL], [ # libcurl compiler/linker flags are kept separate from the global flags, so # they have to be added back temporarily for the following tests. pgac_save_CPPFLAGS=$CPPFLAGS pgac_save_LDFLAGS=$LDFLAGS pgac_save_LIBS=$LIBS CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS" LDFLAGS="$LDFLAGS $LIBCURL_LDFLAGS" AC_CHECK_HEADER(curl/curl.h, [], [AC_MSG_ERROR([header file <curl/curl.h> is required for --with-libcurl])]) # LIBCURL_LDLIBS is determined here. Like the compiler flags, it should not # pollute the global LIBS setting. AC_CHECK_LIB(curl, curl_multi_init, [ AC_DEFINE([HAVE_LIBCURL], [1], [Define to 1 if you have the `curl' library (-lcurl).]) AC_SUBST(LIBCURL_LDLIBS, -lcurl) ], [AC_MSG_ERROR([library 'curl' does not provide curl_multi_init])]) LIBS="$LIBCURL_LDLIBS $LIBS" # Check to see whether the current platform supports threadsafe Curl # initialization. AC_CACHE_CHECK([for curl_global_init thread safety], [pgac_cv__libcurl_threadsafe_init], [AC_RUN_IFELSE([AC_LANG_PROGRAM([ #include <curl/curl.h> ],[ curl_version_info_data *info; if (curl_global_init(CURL_GLOBAL_ALL)) return -1; info = curl_version_info(CURLVERSION_NOW); #ifdef CURL_VERSION_THREADSAFE if (info->features & CURL_VERSION_THREADSAFE) return 0; #endif return 1; ])], [pgac_cv__libcurl_threadsafe_init=yes], [pgac_cv__libcurl_threadsafe_init=no], [pgac_cv__libcurl_threadsafe_init=unknown])]) if test x"$pgac_cv__libcurl_threadsafe_init" = xyes ; then AC_DEFINE(HAVE_THREADSAFE_CURL_GLOBAL_INIT, 1, [Define to 1 if curl_global_init() is guaranteed to be thread-safe.]) fi # Fail if a thread-friendly DNS resolver isn't built. AC_CACHE_CHECK([for curl support for asynchronous DNS], [pgac_cv__libcurl_async_dns], [AC_RUN_IFELSE([AC_LANG_PROGRAM([ #include <curl/curl.h> ],[ curl_version_info_data *info; if (curl_global_init(CURL_GLOBAL_ALL)) return -1; info = curl_version_info(CURLVERSION_NOW); return (info->features & CURL_VERSION_ASYNCHDNS) ? 0 : 1; ])], [pgac_cv__libcurl_async_dns=yes], [pgac_cv__libcurl_async_dns=no], [pgac_cv__libcurl_async_dns=unknown])]) if test x"$pgac_cv__libcurl_async_dns" = xno ; then AC_MSG_ERROR([ *** The installed version of libcurl does not support asynchronous DNS *** lookups. Rebuild libcurl with the AsynchDNS feature enabled in order *** to use it with libpq.]) fi CPPFLAGS=$pgac_save_CPPFLAGS LDFLAGS=$pgac_save_LDFLAGS LIBS=$pgac_save_LIBS ])# PGAC_CHECK_LIBCURL