1#!/bin/sh
2#
3# This shell script is a wrapper to the main configure script when
4# configuring GDB for DJGPP.  99% of it can also be used when
5# configuring other GNU programs for DJGPP.
6#
7#=====================================================================
8# Copyright (C) 1997-2021 Free Software Foundation, Inc.
9#
10# Originally written by Robert Hoehne, revised by Eli Zaretskii.
11# This file is part of GDB.
12#
13# This program is free software; you can redistribute it and/or modify
14# it under the terms of the GNU General Public License as published by
15# the Free Software Foundation; either version 3 of the License, or
16# (at your option) any later version.
17#
18# This program is distributed in the hope that it will be useful,
19# but WITHOUT ANY WARRANTY; without even the implied warranty of
20# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21# GNU General Public License for more details.
22#
23# You should have received a copy of the GNU General Public License
24# along with this program.  If not, see <http://www.gnu.org/licenses/>.
25#=====================================================================
26#
27# Call this script like the main configure script with one exception.  If you
28# want to pass parameters to configure, you have to pass as the first
29# argument the srcdir, even when it is `.' !!!!!
30#
31# First, undo any CDPATH settings; they will get in our way when we
32# chdir to directories.
33unset CDPATH
34
35# Where are the sources? If you are used to having the sources
36# in a separate directory and the objects in another, then set
37# here the full path to the source directory and run this script
38# in the directory where you want to build gdb!!
39# You might give the source directory on commandline, but use
40# then only forward slashes (/) in the directories. It should be
41# an absolute path.
42
43if [ x$1 = x ]; then
44  srcdir=`pwd`
45else
46  srcdir=`cd $1 && pwd`
47  shift
48fi
49
50# Make sure they don't have some file names mangled by untarring.
51echo -n "Checking the unpacked distribution..."
52if ( ! test -f ${srcdir}/bfd/ChangeLog.0203      || \
53     ! test -f ${srcdir}/gdb/ChangeLog.002       || \
54     ! test -f ${srcdir}/opcodes/ChangeLog.0203  || \
55     ! test -f ${srcdir}/readline/config.h-in ) ; then
56  if ( ! test -f ${srcdir}/bfd/ChangeLog.0203 ) ; then
57    notfound=${srcdir}/bfd/ChangeLog.0203
58  else
59    if ( ! test -f ${srcdir}/gdb/ChangeLog.002) ; then
60      notfound=${srcdir}/gdb/ChangeLog.002
61    else
62      if ( ! test -f ${srcdir}/readline/config.h-in ) ; then
63        notfound=${srcdir}/readline/config.h-in
64      else
65        if ( ! test -f ${srcdir}/opcodes/ChangeLog.0203 ) ; then
66          notfound=${srcdir}/opcodes/ChangeLog.0203
67        fi
68      fi
69    fi
70  fi
71  echo " FAILED."
72  echo "(File $notfound was not found.)"
73  echo ""
74  echo "You MUST unpack the sources with the DJTAR command, like this:"
75  echo ""
76  echo "         djtar -x -n fnchange.lst gdb-X.YZ.tar.gz"
77  echo ""
78  echo "where X.YZ is the GDB version, and fnchange.lst can be found"
79  echo "in the gdb/config/djgpp/ directory in the GDB distribution."
80  echo ""
81  echo "configure FAILED!"
82  exit 1
83else
84  echo " ok."
85fi
86
87# Where is the directory with DJGPP-specific scripts?
88DJGPPDIR=${srcdir}/gdb/config/djgpp
89
90echo "Editing configure scripts for DJGPP..."
91TMPFILE="${TMPDIR-.}/cfg.tmp"
92
93# We need to skip the build directory if it is a subdirectory of $srcdir,
94# otherwise we will have an infinite recursion on our hands...
95if test "`pwd`" = "${srcdir}" ; then
96  SKIPDIR=""
97  SKIPFILES=""
98else
99  SKIPDIR=`pwd | sed -e "s|${srcdir}|.|"`
100  SKIPFILES="${SKIPDIR}/*"
101fi
102
103# We use explicit /dev/env/DJDIR/bin/find to avoid catching
104# an incompatible DOS/Windows version that might be on their PATH.
105for fix_dir in \
106  `cd $srcdir && /dev/env/DJDIR/bin/find . -type d ! -ipath "${SKIPDIR}" ! -ipath "${SKIPFILES}"`
107do
108  if test ! -f ${fix_dir}/configure.orig ; then
109    if test -f ${srcdir}/${fix_dir}/configure ; then
110      mkdir -p ${fix_dir}
111      cp -p ${srcdir}/${fix_dir}/configure ${fix_dir}/configure.orig
112    fi
113  fi
114  if test -f ${fix_dir}/configure.orig ; then
115    sed -f ${DJGPPDIR}/config.sed ${fix_dir}/configure.orig > $TMPFILE
116    update $TMPFILE ${fix_dir}/configure
117    touch ./${fix_dir}/configure -r ${fix_dir}/configure.orig
118    rm -f $TMPFILE
119  fi
120  if test -f ${fix_dir}/INSTALL ; then
121    mv ${fix_dir}/INSTALL ${fix_dir}/INSTALL.txt
122  fi
123done
124
125# Now set the config shell. It is really needed, that the shell
126# points to a shell with full path and also it must conatain the
127# .exe suffix. I assume here, that bash is installed. If not,
128# install it. Additionally, the pathname must not contain a
129# drive letter, so use the /dev/x/foo format supported by versions
130# of Bash 2.03 and later, and by all DJGPP programs compiled with
131# v2.03 (or later) library.
132export CONFIG_SHELL=/dev/env/DJDIR/bin/sh.exe
133
134# force to have the ltmain.sh script to be in DOS text format,
135# otherwise the resulting ltconfig script will have mixed
136# (UNIX/DOS) format and is unusable with Bash ports before v2.03.
137utod $srcdir/ltmain.sh
138
139# Give the configure script some hints:
140export LD=ld
141export NM=nm
142export CC=gcc
143export CXX=gpp
144export CFLAGS="-O2 -ggdb -g3"
145export RANLIB=ranlib
146export DEFAULT_YACC="bison -y"
147export YACC="bison -y"
148export DEFAULT_LEX=flex
149export PATH_SEPARATOR=';'
150# Define explicitly the .exe extension because on W95 with LFN=y
151# the check might fail
152export am_cv_exeext=.exe
153# ltconfig wants to compute the maximum command-line length, but
154# Bash 2.04 doesn't like that (it doesn't have any limit ;-), and
155# reboots the system.  We know our limit in advance, so we don't
156# need all that crap.  Assuming that the environment size is less
157# than 4KB, we can afford 12KB of command-line arguments.
158export lt_cv_sys_max_cmd_len=12288
159# Force depcomp to use _deps rather than .deps as the name of the
160# subdirectory where the *.Po dependency files are put.  File names
161# with leading dots are invalid on DOS 8+3 filesystems.
162export DEPDIR=${DEPDIR:-_deps}
163
164# The configure script needs to see the `install-sh' script, otherwise
165# it decides the source installation is broken.  But "make install" will
166# fail on 8+3 filesystems if it finds a file `install-', since there
167# are numerous "install-foo" targets in Makefile's.  So we rename the
168# offending file after the configure step is done.
169if test ! -f ${srcdir}/install-sh ; then
170  if test -f ${srcdir}/install-.sh ; then
171    mv ${srcdir}/install-.sh ${srcdir}/install-sh
172  fi
173fi
174
175# Now run the configure script while disabling some things like the NLS
176# support, which is nearly impossible to be supported in the current way,
177# since it relies on file names which will never work on DOS.
178echo "Running the configure script..."
179$srcdir/configure --srcdir="$srcdir" --prefix='${DJDIR}' \
180  --disable-shared --disable-nls --verbose --enable-build-warnings=\
181-Wimplicit,-Wcomment,-Wformat,-Wparentheses,-Wpointer-arith,-Wuninitialized $*
182
183if test -f ${srcdir}/install- ; then
184  mv ${srcdir}/install- ${srcdir}/install-.sh
185fi
186