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#!/bin/bash
# Makefile for the SDL Object eXtensions library
# This bash file is used to generate the makefile
# to produce the library for the graphics library
#
cd $(dirname $0)
BINARY_NAME="libslox.a"
obs=()
src=()
function generate_depends {
# get the dependencies of the dependencies
next=$(cat $1 | gawk 'match($0, /#include "(.*)"/, m) { print m[1] }')
deps=$1
for i in $next ; do
for canidate in $(generate_depends $i) ; do
if [[ ! $deps =~ $i ]] && [[ -f $i ]] ; then
deps="$deps \\$(echo -ne '\n ')$i"
fi
done
if [[ $? -ne 0 ]] ; then
echo "Failed to generate depends">&2
return 1;
fi
done
echo "$deps"
}
# Iterate through and find the
# c++ source files
for i in $(find . | egrep '.*\.c(pp|xx)?$') ; do
# add this file to the list of
# sources
echo "Generating from source file: $i"
deps="$(generate_depends $i)"
# add the resulting object file to
# the objects
src[$cnt]=$deps
obs+=("obs/`basename $i | sed 's/\.c\(pp\|xx\)\?$/.o/g'`")
cnt=$[cnt + 1]
done
# remove the Makefile if it exists
rm -f Makefile || true
# open Makefile
exec 3<> Makefile
# some commonly used files to generate
echo 'CPPC?=g++'>&3
echo 'AR?=ar'>&3
echo 'OPTFLAGS?=-g3 -ggdb'>&3
echo "CFLAGS=$CFLAGS -Wall -Wextra -I. "'$(OPTFLAGS)'" -D DEBUG_LEVEL_TRACE -Islox -I../glox">&3
echo "LDFLAGS=$LDFLAGS">&3
echo 'OBJECTS='${obs[@]}>&3
echo 'BINARY='$BINARY_NAME>&3
# Add all, setup and clean rules
echo -e 'all: setup $(OBJECTS)\n\t$(AR) -r $(BINARY) $(OBJECTS)\n'>&3
echo -e 'setup:\n\tmkdir -p obs/\n'>&3
echo -e 'clean:\n\t- rm -rf obs $(BINARY)\n'>&3
# iterate through all of the objects and
# add a rule for the binary
for ((i=0;i<${#obs[@]};i++)) ; do
echo "Object file: ${obs[$i]}"
# add a rule for the new binary
echo -e "${obs[$i]}: ${src[$i]}\n\t"'$(CPPC) $(CFLAGS) -o $@ -c $<\n'>&3
done
# close Makefile
exec 3>&-
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