michael@0: #!/bin/sh
michael@0: #
michael@0: # This Source Code Form is subject to the terms of the Mozilla Public
michael@0: # License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: # file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: ##############################################################################
michael@0: ##
michael@0: ## Name:		glibcversion.sh - Print __GLIBC__ version if gnu libc 2 is 
michael@0: ##              found.
michael@0: ##
michael@0: ## Description:	This script is needed by the mozilla build system.  It needs
michael@0: ##              to determine whether the current platform (mostly the 
michael@0: ##              various linux "platforms") are based on the gnu libc2.  This
michael@0: ##              information is later used in mozilla to determine whether 
michael@0: ##              gnu libc 2 specific "features" need to be handled, such
michael@0: ##              as broken locales.
michael@0: ##
michael@0: ## Author:		Ramiro Estrugo <ramiro@netscape.com>
michael@0: ##
michael@0: ##############################################################################
michael@0: 
michael@0: ##
michael@0: ## Command Line Flags Supported:
michael@0: ##
michael@0: ##  -g  | --is-glibc2:				Print True/False if detected __GLIBC__.
michael@0: ##
michael@0: ##  -v  | --print-version:			Print value of __GLIBC__ if found, or none.
michael@0: ##
michael@0: ##  -o  | --set-object-name:		Set object name for current system.
michael@0: ##  -cc | --set-compiler:			Set compiler for building test program.
michael@0: ##
michael@0: 
michael@0: 
michael@0: ##
michael@0: ## Constants
michael@0: ##
michael@0: GLIBC_PROG_PREFIX=./get_glibc_info
michael@0: 
michael@0: ##
michael@0: ## Defaults
michael@0: ##
michael@0: GLIBC_PRINT_IS_GLIBC2=False
michael@0: 
michael@0: GLIBC_PRINT_VERSION=False
michael@0: 
michael@0: GLIBC_OBJECT_NAME=`uname`-`uname -r`
michael@0: GLIBC_CC=cc
michael@0: 
michael@0: function glibc_usage()
michael@0: {
michael@0: echo
michael@0: echo "Usage:   `basename $0` [options]"
michael@0: echo
michael@0: echo "  -g,  --is-glibc2:          Print True/False if detected __GLIBC__."
michael@0: echo
michael@0: echo "  -v,  --print-version:      Print value of __GLIBC__ if found, or none."
michael@0: echo
michael@0: echo "  -o,  --set-object-name:    Set object name for current system."
michael@0: echo "  -cc, --set-compiler:       Set compiler for building test program."
michael@0: echo
michael@0: echo "  -h,  --help:               Print this blurb."
michael@0: echo
michael@0: echo "The default is '-v' if no options are given."
michael@0: echo
michael@0: }
michael@0: 
michael@0: ##
michael@0: ## Parse the command line
michael@0: ##
michael@0: while [ "$*" ]; do
michael@0:     case $1 in
michael@0:         -h | --help)
michael@0:             shift
michael@0:             glibc_usage
michael@0: 			exit 0
michael@0:             ;;
michael@0: 
michael@0:         -g | --is-glibc2)
michael@0:             shift
michael@0:             GLIBC_PRINT_IS_GLIBC2=True
michael@0:             ;;
michael@0: 
michael@0:         -v | --print-version)
michael@0:             shift
michael@0:             GLIBC_PRINT_VERSION=True
michael@0:             ;;
michael@0: 
michael@0:         -o | --set-object-name)
michael@0:             shift
michael@0:             GLIBC_OBJECT_NAME="$1"
michael@0:             shift
michael@0:             ;;
michael@0: 
michael@0:         -cc | --set-compiler)
michael@0:             shift
michael@0:             GLIBC_CC="$1"
michael@0:             shift
michael@0:             ;;
michael@0: 
michael@0:         -*)
michael@0:             echo "`basename $0`: invalid option '$1'"
michael@0:             shift
michael@0:             glibc_usage
michael@0: 			exit 0
michael@0:             ;;
michael@0:     esac
michael@0: done
michael@0: 
michael@0: ##
michael@0: ## Motif info program name
michael@0: ##
michael@0: GLIBC_PROG="$GLIBC_PROG_PREFIX"_"$GLIBC_OBJECT_NAME"
michael@0: GLIBC_SRC="$GLIBC_PROG_PREFIX"_"$GLIBC_OBJECT_NAME.c"
michael@0: 
michael@0: ##
michael@0: ## Cleanup the dummy test source/program
michael@0: ##
michael@0: function glibc_cleanup()
michael@0: {
michael@0: 	true
michael@0: 
michael@0: #	rm -f $GLIBC_PROG
michael@0: #	rm -f $GLIBC_SRC
michael@0: 
michael@0: }
michael@0: 
michael@0: glibc_cleanup
michael@0: 
michael@0: if [ ! -f $GLIBC_SRC ]
michael@0: then
michael@0: cat << EOF > $GLIBC_SRC
michael@0: #include <stdio.h>
michael@0: 
michael@0: int main(int argc,char ** argv) 
michael@0: {
michael@0: #ifdef 	__GLIBC__
michael@0: 	fprintf(stdout,"%d\n",__GLIBC__);
michael@0: #else
michael@0: 	fprintf(stdout,"none\n");
michael@0: #endif
michael@0: 
michael@0: 	return 0;
michael@0: }
michael@0: EOF
michael@0: fi
michael@0: 
michael@0: if [ ! -f $GLIBC_SRC ]
michael@0: then
michael@0: 	echo
michael@0: 	echo "Could not create test program source $GLIBC_SRC."
michael@0: 	echo
michael@0: 
michael@0: 	glibc_cleanup
michael@0: 
michael@0: 	exit
michael@0: fi
michael@0: 
michael@0: ##
michael@0: ## Compile the dummy test program if needed
michael@0: ##
michael@0: if [ ! -x $GLIBC_PROG ]
michael@0: then
michael@0: 	$GLIBC_CC -o $GLIBC_PROG $GLIBC_SRC
michael@0: fi
michael@0: 
michael@0: if [ ! -x $GLIBC_PROG ]
michael@0: then
michael@0: 	echo
michael@0: 	echo "Could not create test program $GLIBC_PROG."
michael@0: 	echo
michael@0: 
michael@0: 	glibc_cleanup
michael@0: 
michael@0: 	exit
michael@0: fi
michael@0: 
michael@0: ##
michael@0: ## Execute the dummy test program
michael@0: ##
michael@0: GLIBC_PROG_OUTPUT=`$GLIBC_PROG`
michael@0: 
michael@0: ##
michael@0: ## -g | --is-glibc2
michael@0: ##
michael@0: if [ "$GLIBC_PRINT_IS_GLIBC2" = "True" ]
michael@0: then
michael@0: 	if [ "$GLIBC_PROG_OUTPUT" = "2" ]
michael@0: 	then
michael@0: 		echo True
michael@0: 	else
michael@0: 		echo False
michael@0: 	fi
michael@0: 
michael@0: 	glibc_cleanup
michael@0: 
michael@0: 	exit 0
michael@0: fi
michael@0: 
michael@0: echo $GLIBC_PROG_OUTPUT
michael@0: 
michael@0: glibc_cleanup