dnl written by Rob Savoye for Cygnus Support dnl major rewriting for Tcl 7.5 by Don Libes # Keep these includes in sync with the aclocal_m4_deps list in # Makefile.in. sinclude(acx_configure_dir.m4) # This gets GDB_AC_LIBMCHECK. sinclude(libmcheck.m4) # This gets GDB_AC_TRANSFORM. sinclude(transform.m4) # This gets AM_GDB_WARNINGS. sinclude(warning.m4) dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition. sinclude(../bfd/bfd.m4) dnl This gets the standard macros. sinclude(../config/acinclude.m4) dnl This gets AC_PLUGINS, needed by ACX_LARGEFILE. sinclude(../config/plugins.m4) dnl For ACX_LARGEFILE. sinclude(../config/largefile.m4) dnl For AM_SET_LEADING_DOT. sinclude(../config/lead-dot.m4) dnl This gets autoconf bugfixes. sinclude(../config/override.m4) dnl For ZW_GNU_GETTEXT_SISTER_DIR. sinclude(../config/gettext-sister.m4) dnl For AC_LIB_HAVE_LINKFLAGS. sinclude(../config/lib-ld.m4) sinclude(../config/lib-prefix.m4) sinclude(../config/lib-link.m4) dnl For ACX_PKGVERSION and ACX_BUGURL. sinclude(../config/acx.m4) dnl for TCL definitions sinclude(../config/tcl.m4) dnl For dependency tracking macros. sinclude([../config/depstand.m4]) dnl For AM_LC_MESSAGES sinclude([../config/lcmessage.m4]) dnl For AM_LANGINFO_CODESET. sinclude([../config/codeset.m4]) sinclude([../config/iconv.m4]) sinclude([../config/zlib.m4]) m4_include([common/common.m4]) dnl For libiberty_INIT. m4_include(libiberty.m4) dnl For GDB_AC_PTRACE. m4_include(ptrace.m4) m4_include(ax_cxx_compile_stdcxx.m4) ## ----------------------------------------- ## ## ANSIfy the C compiler whenever possible. ## ## From Franc,ois Pinard ## ## ----------------------------------------- ## # Copyright (C) 1996-2018 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, see . # serial 1 # @defmac AC_PROG_CC_STDC # @maindex PROG_CC_STDC # @ovindex CC # If the C compiler in not in ANSI C mode by default, try to add an option # to output variable @code{CC} to make it so. This macro tries various # options that select ANSI C on some system or another. It considers the # compiler to be in ANSI C mode if it handles function prototypes correctly. # # If you use this macro, you should check after calling it whether the C # compiler has been set to accept ANSI C; if not, the shell variable # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source # code in ANSI C, you can make an un-ANSIfied copy of it by using the # program @code{ansi2knr}, which comes with Ghostscript. # @end defmac AC_DEFUN([AM_PROG_CC_STDC], [AC_REQUIRE([AC_PROG_CC]) AC_BEFORE([$0], [AC_C_INLINE]) AC_BEFORE([$0], [AC_C_CONST]) dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require dnl a magic option to avoid problems with ANSI preprocessor commands dnl like #elif. dnl FIXME: can't do this because then AC_AIX won't work due to a dnl circular dependency. dnl AC_BEFORE([$0], [AC_PROG_CPP]) AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C]) AC_CACHE_VAL(am_cv_prog_cc_stdc, [am_cv_prog_cc_stdc=no ac_save_CC="$CC" # Don't try gcc -ansi; that turns off useful extensions and # breaks some systems' header files. # AIX -qlanglvl=ansi # Ultrix and OSF/1 -std1 # HP-UX 10.20 and later -Ae # HP-UX older versions -Aa -D_HPUX_SOURCE # SVR4 -Xc -D__EXTENSIONS__ for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" do CC="$ac_save_CC $ac_arg" AC_TRY_COMPILE( [#include #include #include #include /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ struct buf { int x; }; FILE * (*rcsopen) (struct buf *, struct stat *, int); static char *e (p, i) char **p; int i; { return p[i]; } static char *f (char * (*g) (char **, int), char **p, ...) { char *s; va_list v; va_start (v,p); s = g (p, va_arg (v,int)); va_end (v); return s; } int test (int i, double x); struct s1 {int (*f) (int a);}; struct s2 {int (*f) (double a);}; int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); int argc; char **argv; ], [ return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; ], [am_cv_prog_cc_stdc="$ac_arg"; break]) done CC="$ac_save_CC" ]) if test -z "$am_cv_prog_cc_stdc"; then AC_MSG_RESULT([none needed]) else AC_MSG_RESULT([$am_cv_prog_cc_stdc]) fi case "x$am_cv_prog_cc_stdc" in x|xno) ;; *) CC="$CC $am_cv_prog_cc_stdc" ;; esac ]) dnl written by Guido Draheim , original by Alexandre Oliva dnl Version 1.3 (2001/03/02) dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html AC_DEFUN([AC_DEFINE_DIR], [ test "x$prefix" = xNONE && prefix="$ac_default_prefix" test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' ac_define_dir=`eval echo [$]$2` ac_define_dir=`eval echo [$]ac_define_dir` ifelse($3, , AC_DEFINE_UNQUOTED($1, "$ac_define_dir"), AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3)) ]) dnl See whether we need a declaration for a function. dnl The result is highly dependent on the INCLUDES passed in, so make sure dnl to use a different cache variable name in this macro if it is invoked dnl in a different context somewhere else. dnl gcc_AC_CHECK_DECL(SYMBOL, dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]]) AC_DEFUN([gcc_AC_CHECK_DECL], [AC_MSG_CHECKING([whether $1 is declared]) AC_CACHE_VAL(gcc_cv_have_decl_$1, [AC_TRY_COMPILE([$4], [#ifndef $1 char *(*pfn) = (char *(*)) $1 ; #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")]) if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2]) else AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3]) fi ])dnl dnl Check multiple functions to see whether each needs a declaration. dnl Arrange to define HAVE_DECL_ to 0 or 1 as appropriate. dnl gcc_AC_CHECK_DECLS(SYMBOLS, dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]]) AC_DEFUN([gcc_AC_CHECK_DECLS], [for ac_func in $1 do changequote(, )dnl ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` changequote([, ])dnl gcc_AC_CHECK_DECL($ac_func, [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2], [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3], dnl It is possible that the include files passed in here are local headers dnl which supply a backup declaration for the relevant prototype based on dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test dnl will always return success. E.g. see libiberty.h's handling of dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to dnl 1 so that any local headers used do not provide their own prototype dnl during this test. #undef $ac_tr_decl #define $ac_tr_decl 1 $4 ) done dnl Automatically generate config.h entries via autoheader. if test x = y ; then patsubst(translit([$1], [a-z], [A-Z]), [\w+], [AC_DEFINE([HAVE_DECL_\&], 1, [Define to 1 if we found this declaration otherwise define to 0.])])dnl fi ]) dnl Find the location of the private Tcl headers dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic dnl When Tcl is in the build tree, this is not needed. dnl dnl Note: you must use first use SC_LOAD_TCLCONFIG! AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [ AC_MSG_CHECKING([for Tcl private headers]) private_dir="" dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//` if test -f ${dir}/tclInt.h ; then private_dir=${dir} fi if test x"${private_dir}" = x; then AC_ERROR(could not find private Tcl headers) else TCL_PRIVATE_INCLUDE="-I${private_dir}" AC_MSG_RESULT(${private_dir}) fi ]) dnl Find the location of the private Tk headers dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic dnl When Tk is in the build tree, this not needed. dnl dnl Note: you must first use SC_LOAD_TKCONFIG AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [ AC_MSG_CHECKING([for Tk private headers]) private_dir="" dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//` if test -f ${dir}/tkInt.h; then private_dir=${dir} fi if test x"${private_dir}" = x; then AC_ERROR(could not find Tk private headers) else TK_PRIVATE_INCLUDE="-I${private_dir}" AC_MSG_RESULT(${private_dir}) fi ]) dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE]) dnl For use in processing directory values for --with-foo. dnl If the path in SHELL_VARIABLE is relative to the prefix, then the dnl result is relocatable, then this will define the C macro dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0. AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [ if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then if test "x$prefix" = xNONE; then test_prefix=/usr/local else test_prefix=$prefix fi else test_prefix=$exec_prefix fi value=0 case [$3] in "${test_prefix}"|"${test_prefix}/"*|\ '${exec_prefix}'|'${exec_prefix}/'*) value=1 ;; esac AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.]) ]) dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT]) dnl Add a new --with option that defines a directory. dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called dnl on this variable, as is AC_SUBST. dnl ARG-NAME is the base name of the argument (without "--with"). dnl HELP is the help text to use. dnl If the user's choice is relative to the prefix, then the dnl result is relocatable, then this will define the C macro dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0. dnl DEFAULT is the default value, which is used if the user dnl does not specify the argument. AC_DEFUN([GDB_AC_WITH_DIR], [ AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [ [$1]=$withval], [[$1]=[$4]]) AC_DEFINE_DIR([$1], [$1], [$3]) AC_SUBST([$1]) GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir}) ]) dnl GDB_AC_CHECK_BFD([MESSAGE], [CV], [CODE], [HEADER]) dnl Check whether BFD provides a feature. dnl MESSAGE is the "checking" message to display. dnl CV is the name of the cache variable where the result is stored. dnl The result will be "yes" or "no". dnl CODE is some code to compile that checks for the feature. dnl A link test is run. dnl HEADER is the name of an extra BFD header to include. AC_DEFUN([GDB_AC_CHECK_BFD], [ OLD_CFLAGS=$CFLAGS OLD_LDFLAGS=$LDFLAGS OLD_LIBS=$LIBS # Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS # points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We # always want our bfd. CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS" ZLIBDIR=`echo $zlibdir | sed 's,\$(top_builddir)/,,g'` LDFLAGS="-L../bfd -L../libiberty $ZLIBDIR $LDFLAGS" intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'` LIBS="-lbfd -liberty -lz $intl $LIBS" AC_CACHE_CHECK([$1], [$2], [AC_TRY_LINK( [#include #include "bfd.h" #include "$4" ], [return $3;], [[$2]=yes], [[$2]=no])]) CFLAGS=$OLD_CFLAGS LDFLAGS=$OLD_LDFLAGS LIBS=$OLD_LIBS]) dnl GDB_GUILE_PROGRAM_NAMES([PKG-CONFIG], [VERSION]) dnl dnl Define and substitute 'GUILD' to contain the absolute file name of dnl the 'guild' command for VERSION, using PKG-CONFIG. (This is dnl similar to Guile's 'GUILE_PROGS' macro.) AC_DEFUN([GDB_GUILE_PROGRAM_NAMES], [ AC_CACHE_CHECK([for the absolute file name of the 'guild' command], [ac_cv_guild_program_name], [ac_cv_guild_program_name="`$1 --variable guild $2`" # In Guile up to 2.0.11 included, guile-2.0.pc would not define # the 'guild' and 'bindir' variables. In that case, try to guess # what the program name is, at the risk of getting it wrong if # Guile was configured with '--program-suffix' or similar. if test "x$ac_cv_guild_program_name" = "x"; then guile_exec_prefix="`$1 --variable exec_prefix $2`" ac_cv_guild_program_name="$guile_exec_prefix/bin/guild" fi ]) if ! "$ac_cv_guild_program_name" --version >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then AC_MSG_ERROR(['$ac_cv_guild_program_name' appears to be unusable]) fi GUILD="$ac_cv_guild_program_name" AC_SUBST([GUILD]) ]) dnl GDB_GUILD_TARGET_FLAG dnl dnl Compute the value of GUILD_TARGET_FLAG. dnl For native builds this is empty. dnl For cross builds this is --target=. AC_DEFUN([GDB_GUILD_TARGET_FLAG], [ if test "$cross_compiling" = no; then GUILD_TARGET_FLAG= else GUILD_TARGET_FLAG="--target=$host" fi AC_SUBST(GUILD_TARGET_FLAG) ]) dnl GDB_TRY_GUILD([SRC-FILE]) dnl dnl We precompile the .scm files and install them with gdb, so make sure dnl guild works for this host. dnl The .scm files are precompiled for several reasons: dnl 1) To silence Guile during gdb startup (Guile's auto-compilation output dnl is unnecessarily verbose). dnl 2) Make gdb developers see compilation errors/warnings during the build, dnl and not leave it to later when the user runs gdb. dnl 3) As a convenience for the user, so that one copy of the files is built dnl instead of one copy per user. dnl dnl Make sure guild can handle this host by trying to compile SRC-FILE, and dnl setting ac_cv_guild_ok to yes or no. dnl Note that guild can handle cross-compilation. dnl It could happen that guild can't handle the host, but guile would still dnl work. For the time being we're conservative, and if guild doesn't work dnl we punt. AC_DEFUN([GDB_TRY_GUILD], [ AC_REQUIRE([GDB_GUILD_TARGET_FLAG]) AC_CACHE_CHECK([whether guild supports this host], [ac_cv_guild_ok], [echo "$ac_cv_guild_program_name compile $GUILD_TARGET_FLAG -o conftest.go $1" >&AS_MESSAGE_LOG_FD if "$ac_cv_guild_program_name" compile $GUILD_TARGET_FLAG -o conftest.go "$1" >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then ac_cv_guild_ok=yes else ac_cv_guild_ok=no fi]) ])