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#! /usr/bin/perl
# Build Emacs with various options for profiling, debugging,
# with and without warnings enabled etc.
# Copyright (C) 2001-2011 Free Software Foundation, Inc.
# This file is part of GNU Emacs.
# GNU Emacs 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 3 of the License, or
# (at your option) any later version.
# GNU Emacs is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with GNU Emacs. If not, see <>.
require 5;
use Getopt::Long;
use File::Basename;
use Cwd;
# Default CVS sandbox directory. Only used when called from outside
# of the sandbox.
$root = $ENV{"EMACS_ROOT"};
$root = "/gd/gnu/emacs" unless $root;
# Default make command.
$make = $ENV{"EMACS_MAKE"};
$make = "gmake" unless $make;
$rc = GetOptions ("help" => \$help,
"enable-checking" => \$enable_checking,
"no-warn" => \$no_warn,
"check-marked" => \$check_marked,
"all" => \$all,
"no-optim" => \$no_optim,
"union-type" => \$union_type,
"gprof" => \$profile,
"malloc-check" => \$malloc_check,
"no-mcheck" => \$no_mcheck,
"alias" => \$aliasing,
"boot" => \$boot,
"wall" => \$wall,
"gcc3" => \$gcc3,
"trace-selection" => \$trace_selection,
"trace-move" => \$trace_move,
"stabs" => \$use_stabs,
"optim" => \$optim);
if ($rc == 0 || $help)
print <<USAGE;
make-emacs [options] ...
Build Emacs.
--help show this help
--all make clean versionclean first
--boot make bootstrap, log to boot.log
--enable-checking ENABLE_CHECKING=1
--no-warn disable warnings
--check-marked GC_CHECK_MARKED_OBJECTS=1
--optim no debug defines
--gprof make Emacs for profiling
--union-type define USE_LISP_UNION_TYPE (bad for GDB)
--malloc-check define GC_MALLOC_CHECK
--no-mcheck dont define GC_MCHECK
--wall compile with -Wall
--gcc3 use GCC 3.0 (30% slower compilation, slower code)
--trace-selection print traces in xselect.c
--trace-move print traces for move_it* functions
--stabs use -gstabs instead -g
Default is to compile with warnings, with -DGC_MCHECK=1, and
exit 1;
# Chdir to the top-level directory of the tree. If not in a tree
# containing Emacs, use the default.
while (! -f "src/emacs.c" && cwd () ne "/")
chdir "..";
chdir $root if cwd () eq "/";
chdir "./src";
print "Build in ", cwd (), "\n";
# If first arg is `all' or if `--all' specified, ensure a clean
# build.
if (@ARGV && $ARGV[0] eq "all")
$all = 1;
shift @ARGV;
system ("$make clean versionclean") if $all;
if ($wall)
$warn = "-Wall";
elsif (!$no_warn)
$warn = "-Wpointer-arith -Wchar-subscripts -Wformat -Wimplicit-int";
$warn = "$warn -Wreturn-type -Wswitch -Wuninitialized";
$defs = "-DGLYPH_DEBUG=1" unless $optim;
$defs = "$defs -DGC_CHECK_MARKED_OBJECTS=1" if $check_marked;
$defs = "$defs -DENABLE_CHECKING=1" if $enable_checking;
if ($profile)
$opts = "-pg";
$defs = "$defs -DPROFILING=1";
if ($use_stabs)
$opts = "-gstabs";
$opts = "-g";
$defs = "$defs -DUSE_LISP_UNION_TYPE" if $union_type;
$defs = "$defs -DGC_MALLOC_CHECK=1 -DGC_PROTECT_MALLOC_STATE=1" if $malloc_check;
$defs = "$defs -DGC_MCHECK=1" unless $no_mcheck;
$defs = "$defs -DTRACE_SELECTION" if $trace_selection;
$defs = "$defs -DDEBUG_TRACE_MOVE" if $trace_move;
# arch=pentium leads to slightly faster code than without.
$opts = "$opts -march=pentiumpro";
if ($optim)
$opts = "$opts -pipe -O3";
elsif ($no_optim)
$opts = "$opts -pipe -fno-inline";
$opts = "$opts -O -pipe -fno-inline";
$opts = "$opts -fstrict-aliasing" if $aliasing;
$opts = "$opts $defs" if $defs;
$opts = "$opts $warn" if $warn;
$cc = "/usr/bin/gcc";
$cc = "/gd/local/bin/gcc" if $gcc3;
if ($boot)
chdir "..";
system "mv boot.log boot.log.old" if -f "boot.log";
exit system "script boot.log $make CC=\"$cc\" CFLAGS=\"$opts\" bootstrap";
exit system "$make CC=\"$cc\" CFLAGS=\"$opts\" @ARGV";
# Local Variables:
# mode: cperl
# End:
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