#!/bin/sh
# See LICENSE file for copyright and license details.

replace_line()
{
	VAR=$1
	ALIGNMENT=$2
	VALUE=$3
	awk "/^${VAR}[ ]*=/ { print \"${VAR}${ALIGNMENT} = ${VALUE}\"; next }; { print; }" config.mk > config.mk.tmp
	mv config.mk.tmp config.mk
}

case $(uname) in
	DragonFly|FreeBSD|Linux|MidnightBSD|NetBSD)
		# the default
		replace_line 'ANAME'     '    ' 'libgrapheme.a'
		replace_line 'SONAME'    '   '  'libgrapheme.so.$(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_PATCH)'
		replace_line 'BINSUFFIX' ''     ''
		replace_line 'SOFLAGS'   '  '   '-shared -nostdlib -Wl,--soname=libgrapheme.so.$(VERSION_MAJOR).$(VERSION_MINOR)'
		replace_line 'SOSYMLINK' ''     'true'
		replace_line 'LDCONFIG'  ''     'ldconfig'
		;;
	OpenBSD)
		replace_line 'ANAME'     '    ' 'libgrapheme.a'
		replace_line 'SONAME'    '   '  'libgrapheme.so.$(VERSION_MAJOR).$(VERSION_MINOR)'
		replace_line 'BINSUFFIX' ''     ''
		replace_line 'SOFLAGS'   '  '   '-shared -nostdlib'
		replace_line 'SOSYMLINK' ''     'false'
		replace_line 'LDCONFIG'  ''     ''
		;;
	Darwin)
		replace_line 'ANAME'     '    ' 'libgrapheme.a'
		replace_line 'SONAME'    '   '  'libgrapheme.$(VERSION_MAJOR).dylib'
		replace_line 'BINSUFFIX' ''     ''
		replace_line 'SOFLAGS'   '  '   '-dynamiclib -install_name libgrapheme.$(VERSION_MAJOR).dylib -current_version $(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_PATCH) -compatibility_version $(VERSION_MAJOR).$(VERSION_MINOR).0'
		replace_line 'SOSYMLINK' ''     'false'
		replace_line 'LDCONFIG'  ''     ''
		;;
	CYGWIN*|MSYS*|MINGW*)
		replace_line 'ANAME'     '    ' 'libgrapheme.lib'
		replace_line 'SONAME'    '   '  'libgrapheme.dll'
		replace_line 'BINSUFFIX' ''     '.exe'
		replace_line 'SOFLAGS'   '  '   '-shared'
		replace_line 'SOSYMLINK' ''     'false'
		replace_line 'LDCONFIG'  ''     ''
		;;
	*)
		echo "Your system does not have a preset. Edit config.mk and send a patch please! :)"
		exit 1
		;;
esac

exit 0