-#! /bin/sh
+#!/bin/sh
#
-# Fake "ar" to build the Python shared library on BeOS. This "ar"
-# manipulates a .ar-libname file listing all the objects and regenerates
-# the shared lib every time it's called. This is probably only suitable
-# for things that get built like Python, and you'll probably have to make
-# some small modifications here and there.
+# Truly fake ar, using a directory to store object files.
#
-# This stupid hackery is necessary due to the brain-damaged __declspec()
-# semantics on x86; on PowerPC, we could just build a static library
-# and turn that into a shared library using an exports list. On x86, you'd
-# need to use a fake table of pointers to every symbol you wanted to
-# export, otherwise you'd end up with an empty shared lib. This is
-# progress?
-#
-# Called via:
-#
-# ar-fake cr lib-name objects
-# ar-fake d lib-name objects
-#
-# This fake "ar" DOES NOT support any other POSIX "ar" commands! DO NOT
-# expect it to behave very intelligently, it's designed to build Python,
-# not any old shared lib.
-
-AR_COMMAND=$1 ; shift
-AR_LIB=$1 ; shift
-AR_LIB_NAME=$(basename $AR_LIB)
-AR_SO_LIB_NAME=${AR_LIB_NAME/.a/.so}
-AR_LIB_PATH=${AR_LIB/$AR_LIB_NAME/}
-if [ "$AR_LIB_PATH" = "" ] ; then
- AR_LIB_PATH="."
-fi
-AR_CRUD=${AR_LIB_PATH}/.ar-${AR_LIB_NAME}
-
-AR_CWD=$(pwd)
-
-# Function to tell is if the arg is an absolute path. Use it like this:
-#
-# if is_abs pathname ; then ...
-is_abs() {
- if [ "$1" != "$(echo $1 | sed -e "s,^/,,")" ] ; then
- return 0
- fi
- return 1
-}
-
-# Function to build the shared library. It does the right thing for
-# PowerPC or x86 systems running BeOS.
-build_lib() {
- LIB=$1 ; shift
- SO_LIB=${LIB/.a/.so}
- SO_NAME=$1 ; shift
- CRUD_NAME=$1 ; shift
-
- # maybe too much...
- EXTRA_LIBS="-lroot -lbe -lnet"
-
- case $BE_HOST_CPU in
- ppc)
- case $(uname -r) in
- 4.0*) AR_CC="mwcc -xms -export pragma -nodup" ;;
- *) AR_CC="mwcc -shared -export pragma -nodup" ;;
- esac
- GLUE_LOC=/boot/develop/lib/ppc
- AR_GLUE="${GLUE_LOC}/glue-noinit.a ${GLUE_LOC}/init_term_dyn.o ${GLUE_LOC}/start_dyn.o"
- ;;
-
- x86)
- AR_CC="gcc -nostart -Wl,-soname=${SO_NAME}"
- AR_GLUE=
- ;;
+# Donn Cave, donn@oz.net
- *)
- # Send me the mystery system (soo-pah aitch!), then we'll talk...
- echo "No, no, no... $0 doesn't support $BE_HOST_CPU"
- exit 2
- ;;
- esac
+usage='Usage: ar-fake cr libpython.dir obj.o ...
+ ar-fake d libpython.dir obj.o ...
+ ar-fake so libpython.dir libpython.so'
- # Build a list of the objects...
- PARTS=""
- while read OBJ_FILE OBJ_PATH ; do
- PARTS="$PARTS ${OBJ_PATH}${OBJ_FILE}"
- done < $CRUD_NAME
-
- $AR_CC -o $SO_LIB $PARTS $AR_GLUE $EXTRA_LIBS > /dev/null 2>&1
-
- return 0
-}
-
-# Make a backup of the old AR_CRUD file, just to be nice, and clean up
-# any of our temp files that may be laying around.
-if [ -e $AR_CRUD ] ; then
- mv -f $AR_CRUD ${AR_CRUD}.old
- cp ${AR_CRUD}.old $AR_CRUD
-else
- touch $AR_CRUD
-fi
-
-if [ -e ${AR_CRUD}.grepper ] ; then
- rm -f ${AR_CRUD}.grepper
-fi
-
-case $AR_COMMAND in
- cr)
- # Add the extra bits to the $AR_CRUD file.
- for OBJECT in "$@" ; do
- OBJ_NAME=$(basename $OBJECT)
- OBJ_PATH=${OBJECT%$OBJ_NAME}
- if ! is_abs $OBJ_PATH ; then
- OBJ_PATH=${AR_CWD}/${OBJECT}
- OBJ_PATH=${OBJ_PATH%$OBJ_NAME}
- fi
-
- # If this is already in there, we have to blow it away so
- # we can replace it with the new one.
- if egrep -q "^$OBJ_NAME " $AR_CRUD ; then
- egrep -v "^$OBJ_NAME " < $AR_CRUD > ${AR_CRUD}.grepper
- mv -f ${AR_CRUD}.grepper $AR_CRUD
- fi
-
- echo $OBJ_NAME $OBJ_PATH >> $AR_CRUD
- done
-
- # Now build a library from the files.
- build_lib $AR_LIB $AR_SO_LIB_NAME $AR_CRUD
- ;;
-
- d)
- # Remove files from the $AR_CRUD file. This isn't terribly
- # efficient.
- for OBJECT in "$@" ; do
- OBJ_NAME=$(basename $OBJECT)
- OBJ_PATH=${OBJECT%$OBJ_NAME}
- if ! is_abs $OBJ_PATH ; then
- OBJ_PATH=${AR_CWD}/${OBJECT}
- OBJ_PATH=${OBJ_PATH%$OBJ_NAME}
- fi
-
- # Strip the objects from the list, if they're in there.
- egrep -v "^$OBJ_NAME " < $AR_CRUD > ${AR_CRUD}.grepper
- mv -f ${AR_CRUD}.grepper $AR_CRUD
- done
-
- # Now build a library from the remaining objects.
- build_lib $AR_LIB $AR_SO_LIB_NAME $AR_CRUD
- ;;
-
- *)
- echo "$0 error:"
- echo " Unsupported command: $AR_COMMAND"
- exit 1
- ;;
+case $# in
+0|1|2)
+ echo "$usage" >&2
+ exit 1
+ ;;
esac
-# If we make it here, all went well. Hopefully.
-exit 0
+command=$1
+library=$2
+shift 2
+
+case $command in
+cr)
+ if test -d $library
+ then :
+ else
+ mkdir $library
+ fi
+ if cp -p $* $library
+ then
+ # To force directory modify date, create or delete a file.
+ if test -e $library/.tch
+ then rm $library/.tch
+ else echo tch > $library/.tch
+ fi
+ exit 0
+ fi
+ ;;
+d)
+ if test -d $library
+ then
+ cd $library
+ rm -f $*
+ fi
+ ;;
+so)
+ case $BE_HOST_CPU in
+ ppc)
+ mwld -xms -export pragma -nodup -o $1 $library/*
+ ;;
+ x86)
+ gcc -nostart -Wl,-soname=$(basename $1) -o $1 $library/*
+ ;;
+ esac
+ status=$?
+ cd $(dirname $1)
+ ln -sf $PWD lib
+ exit $status
+ ;;
+*)
+ echo "$usage" >&2
+ exit 1
+ ;;
+esac
projects / python / commitdiff