Re: ./configure script prototype
Show 10 quoted lines
> I've started writing up a configuration script to move some of the logic
> out of the Makefile and make it a bit easier to enable/disable certain
> stuff.
>
> I'm not exactly fluent in what sh flavours accept what syntax and the
> uname -m output is a bit of a mystery for some architectures (PowerPC,
> notably) so the SHA1 method selection stuff might not work.
>
> Thoughts? Comments? Patches?
>
--
Andreas Ericsson andreas.ericsson@op5.se
OP5 AB www.op5.se
Tel: +46 8-230225 Fax: +46 8-230231
#!/bin/sh
# VERSION must be here so we know where to put the git_libexec_dir later on
VERSION=0.99.9.GIT
# some default values
default_prefix=$HOME
enable_http=Yes
enable_expat=Yes
without_openssl=0
tar=$(which gtar 2>/dev/null || which tar 2>/dev/null)
install=$(which ginstall 2>/dev/null || which install 2>/dev/null)
function usage ()
{
cat << EOF
Usage: $0 [VAR=VALUE]...
Installation directories:
--prefix=PREFIX files go in directories under PREFIX [$default_prefix]
--exec-prefix=EPREFIX executables go in directories under EPREFIX [PREFIX]
--bindir=DIR user executables [EPREFIX/bin]
--datadir=DIR read-only architecture-independent data [PREFIX/share]
--mandir=DIR man-page base directory [\$datadir/man]
git specific stuff and where to install it:
--git-exec-path=DIR git executables path [*currently* \$bindir]
--git-python-dir=DIR git python scripts [\$datadir/git/python]
--git-template-dir=DIR git templates [\$datadir/git/templates]
Other compilation options:
--disable-http disable http transport support [enable]
--without-expat build without expat (disables http-push) [enable]
--with-curl=DIR path to curl installation [/usr]
--with-expat=DIR path to libexpat installation [/usr]
--with-sha1=METHOD possible options are MOZILLA_SHA1, PPC_SHA1, ARM_SHA1
and OPENSSL_SHA1 [autodetect / OPENSSL_SHA1]
--with-shell=PATH path to bourne-like shell [/bin/sh]
--with-perl=PATH path to perl [/usr/bin/perl]
--with-python=PATH path to python [/usr/bin/python]
EOF
exit 0
}
# for debugging, really
: ${outfile=config.mak}
# Try to keep these in the same order as the help output above.
while [ $# -gt 0 ]; do
case "$1" in
--help*)
usage
;;
--prefix=*)
prefix=${1##*=}
;;
--exec-prefix=*)
exec_prefix=${1##*=}
;;
--bindir=*)
bindir=${1##*=}
;;
--datadir=*)
datadir=${1##*=}
;;
--mandir=*)
mandir=${1##*=}
;;
--git-exec-path=*)
git_exec_path=${1##*=}
;;
--git-python-dir=*)
git_python_dir=${1##*=}
;;
--git-template-dir=*)
git_template_dir=${1##*=}
;;
--disable-http*)
enable_http=No
enable_expat=No
;;
--without-expat*)
enable_expat=No
;;
--with-curl=*)
curl_dir=${1##*=}
;;
--with-expat=*)
expat_dir=${1##*=}
;;
--with-sha1=*)
sha1=${1##*=}
;;
--with-shell=*)
shell=${1##*=}
;;
--with-perl=*)
perl=${1##*=}
;;
--with-python=*)
python=${1##*=}
;;
esac
shift
done
[ "$prefix" ] || prefix="$HOME"
[ "$libdir" ] || libdir="$prefix/lib"
[ "$bindir" ] || bindir="$prefix/bin"
[ "$datadir" ] || datadir="$prefix/share"
[ "$mandir" ] || mandir="$datadir/man"
[ "$git_exec_path" ] || git_exec_path="$bindir"
[ "$git_python_dir"] || git_python_dir=$datadir/git/python
[ "$git_template_dir" ] || git_template_dir=$datadir/git/templates
[ "$shell" ] || shell=/bin/sh
if [ -z "$perl" ]; then
perl=$(which perl 2>/dev/null || perl=/usr/bin/perl)
fi
if [ -z "$python" ]; then
python=$(which python 2>/dev/null || python=/usr/bin/python)
fi
function need () {
echo "Need $@"
for n in "$@"; do
echo "NEEDS_$n = YesPlease" >> $outfile
done
}
function no () {
echo "Working around missing $@"
for n in "$@"; do
echo "NO_$n = YesPlease" >> $outfile
done
}
function cflag () {
echo "ALL_CFLAGS += $@" >> $outfile
}
# for now this is just an alias
alias ldflag=cflag
#function ldflag () {
# echo "ALL_LDFLAGS += $@" >> $outfile
#}
sys=$(uname -s)
case $sys in
Darwin)
need SSL_WITH_CRYPTO LIBICONV
## fink
cflag -I/sw/include
ldflag -L/sw/lib
## darwinports
cflag -I/opt/local/include
ldflag -L/opt/local/lib
;;
SunOS)
need SOCKET NSL LIBICONV
no STRCASESTR
cflag -D__EXTENSIONS__
[ "$shell" = /bin/sh -a -x /bin/bash ] && shell=/bin/bash
;;
OpenBSD)
need LIBICONV
no STRCASESTR
cflag -I/usr/local/include
ldflag -L/usr/local/lib
;;
esac
os=$(uname -o)
case $os in
Cygwin)
need LIBICONV
no STRCASESTR IPV6
cflag -DUSE_SYMLINK_HEAD=0
echo "X = .exe" >> $outfile
;;
esac
if [ -z "$sha1" ]; then
mach=$(uname -m)
case $mach in
*arm*)
sha1=ARM_SHA1
;;
i*86)
sha1=OPENSSL_SHA1
;;
# Is this uname -m output for PPC??
PPC|PowerPC)
sha1=PPC_SHA1
;;
*)
sha1=MOZILLA_SHA1
;;
esac
fi
cat << EOF > $outfile
GIT_VERSION := $VERSION
# Installation destinations
prefix = $prefix
bindir = $bindir
template_dir = $git_template_dir
GIT_EXEC_PATH = $git_exec_path
CFG_GIT_EXEC_PATH := $git_exec_path
GIT_PYTHON_DIR = $git_python_dir
# SHA1 method
$sha1 = YesPlease
# paths to system tools
SHELL_PATH = $shell
PERL_PATH = $perl
PYTHON_PATH = $python
TAR = $tar
INSTALL = $install
# Compilation options, library paths etc. etc.
EOF
# http transport support
if [ "$enable_http" = Yes ]; then
echo "# HTTP transport is enabled" >> $outfile
echo 'PROGRAMS += git-http-fetch$X' >> $outfile
if [ "$curl_dir" ]; then
cflag -I$curl_dir/include
echo "CURL_LIBCURL = -L$curl_dir/lib"
fi
echo "CURL_LIBCURL += -lcurl" >> $outfile
if [ "$enable_expat" = Yes ]; then
echo "# expat (push over http) is enabled" >> $outfile
echo 'PROGRAMS += git-http-push$X' >> $outfile
if [ "$expat_dir" ]; then
cflag -I$expat_dir/include
echo "EXPAT_LIBEXPAT = -L$expat_dir/lib" >> $outfile
fi
echo "EXPAT_LIBEXPAT += -lexpat" >> $outfile
fi
fi
cat << EOF
Configuration summary:
----------------------
Compilation options:
SHA1 method : $sha1
HTTP transport : $enable_http
HTTP push support : $enable_expat
System tools locations:
shell : $shell
Perl : $perl
Python : $python
tar : $tar
install : $install
Installation paths:
bindir utilities : $bindir
templates : $git_template_dir
python scripts : $git_python_dir
Everything else : $git_exec_path
Please see config.mak and top of Makefile for ways to tweak the build further.
EOFAndreas Ericsson <ae@op5.se>