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|
#!/bin/sh
# This is a flexible yet simple configure script that can be used instead of
# GNU autoconf for simple projects written in C. It depends on the file
# config.config for application-specific globals and the files in config.d/ for
# tests to perform.
# Copyright (C) 2004 Jonas Jensen <jbj@knef.dk>
#
# 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
# of the License, 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# Default options
#
app="the application"
prefix=/usr/local
env_vars="CC CFLAGS CPPFLAGS LDFLAGS"
def_CC=cc
def_CFLAGS="-O3 -Wall"
MAKE_VARS=
if [ -f config.config ]; then
. ./config.config
fi
#
# Helper functions
#
echo1() { echo $ECHO_N "$* $ECHO_C"; }
echo2() { echo "$ECHO_T$*"; }
conftest() {
conftest_compile && conftest_link
}
conftest_compile() {
cat >&5 << EOF
Compiling:
---------------------------
EOF
cat conftest.c >&5
echo "---------------------------" >&5
echo "$CC -c $CPPFLAGS $CFLAGS -o conftest.o conftest.c" >&5
rm -f conftest.o
$CC -c $CPPFLAGS $CFLAGS -o conftest.o conftest.c >&5 2>&5 \
&& [ -f conftest.o ]
}
conftest_link() {
echo "$CC -o conftest conftest.o $LDFLAGS" >&5
echo >&5
$CC -o conftest conftest.o $LDFLAGS >&5 2>&5 \
&& [ -x conftest ] && ./conftest 2>&5
}
conftest_define() {
echo1 "$2"
if conftest; then
echo "#define $1 1" >> config.h
echo2 "yes"
return 0
else
echo2 "no"
return 1
fi
}
#
# Initialize
#
exec 5>config.log
date >&5
[ -d config.d ] || {
echo "Directory config.d not found. Run configure from the source root."
exit 1
}
if mv -f config.h config.h.bak 2>/dev/null; then
trap "mv config.h.bak config.h" 0
fi
cat > config.h << EOF
/* XXX This file was automatically generated by configure. */
EOF
#
# Environment
#
for var in $env_vars; do
eval "$var=\${$var:-\$def_$var}"
done
#
# Parse arguments
#
for option do
case "$option" in
--help)
cat << EOF
This will configure $app for your system.
Options:
--prefix=DIR Path to install under [$prefix]
CC=COMMAND C compiler to use [$CC]
CFLAGS=OPTIONS C compiler flags [$CFLAGS]
EOF
exit
;;
--strict)
CFLAGS="$CFLAGS -std=c9x -W -Wshadow -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wredundant-decls"
echo "#define _POSIX_C_SOURCE 200112L" >> config.h
echo "#define _XOPEN_SOURCE 600" >> config.h
;;
--*=*)
arg=`echo "$option"|cut -d= -f 2-`
case "$option" in
--prefix=*)
prefix="$arg"
;;
*)
echo "configure: warning: ignoring option $option"
;;
esac
;;
*=*)
#export "$option" # doesn't work on Solaris
var=`echo "$option"|cut -d= -f 1`
arg=`echo "$option"|cut -d= -f 2-`
eval "$var='$arg'"
esac
done
#
# Do tests
#
# echo test, stolen from GNU autoconf. This really shows UNIX at its worst...
case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
*c*,-n*) ECHO_N= ECHO_C='
' ECHO_T=' ' ;;
*c*,* ) ECHO_N=-n ECHO_C= ECHO_T= ;;
*) ECHO_N= ECHO_C='\c' ECHO_T= ;;
esac
for f in config.d/*; do
cat >&5 << EOF
configure: PERFORMING TEST $f
EOF
. "$f"
done
#
# Clean up
#
trap "" 0
rm -f config.h.bak conftest.c conftest.o conftest
#
# Generate Makefile
#
make clean >/dev/null 2>&1
rm -f Makefile 2>/dev/null || chmod 644 Makefile
cat > Makefile << EOF
# XXX This Makefile is automatically generated by configure.
# XXX Modify Makefile.in to change it.
PREFIX = $prefix
EOF
for var in $env_vars $MAKE_VARS; do
eval "val=\"\$$var\""
echo "$var = $val" >> Makefile
done
cat "Makefile.in" >> Makefile
if [ -f Makefile.dep ]; then
cat Makefile.dep >> Makefile
rm -f Makefile.dep
fi
chmod 444 Makefile
echo
echo "Done. Now type 'make' to compile"
|
