[GitHub/mt8127/android_kernel_alcatel_ttab.git] / scripts / tags.sh

#!/bin/sh
# Generate tags or cscope files
# Usage tags.sh <mode>
#
# mode may be any of: tags, TAGS, cscope
#
# Uses the following environment variables:
# ARCH, SUBARCH, SRCARCH, srctree, src, obj

if [ "$KBUILD_VERBOSE" = "1" ]; then
	set -x
fi

# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
          -name CVS  -o -name .pc       -o -name .hg  -o \
          -name .git )                                   \
          -prune -o"

# Do not use full path if we do not use O=.. builds
# Use make O=. {tags|cscope}
# to force full paths for a non-O= build
if [ "${KBUILD_SRC}" = "" ]; then
	tree=
else
	tree=${srctree}/
fi

# Find all available archs
find_all_archs()
{
	ALLSOURCE_ARCHS=""
	for arch in `ls ${tree}arch`; do
		ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/}
	done
}

# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
if [ "${ALLSOURCE_ARCHS}" = "" ]; then
	ALLSOURCE_ARCHS=${SRCARCH}
elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
	find_all_archs
fi

# find sources in arch/$ARCH
find_arch_sources()
{
	for i in $archincludedir; do
		prune="$prune -wholename $i -prune -o"
	done
	find ${tree}arch/$1 $ignore $prune -name "$2" -print;
}

# find sources in arch/$1/include
find_arch_include_sources()
{
	include=$(find ${tree}arch/$1/ -name include -type d);
	if [ -n "$include" ]; then
		archincludedir="$archincludedir $include"
		find $include $ignore -name "$2" -print;
	fi
}

# find sources in include/
find_include_sources()
{
	find ${tree}include $ignore -name config -prune -o -name "$1" -print;
}

# find sources in rest of tree
# we could benefit from a list of dirs to search in here
find_other_sources()
{
	find ${tree}* $ignore \
	     \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
	       -name "$1" -print;
}

find_sources()
{
	find_arch_sources $1 "$2"
}

all_sources()
{
	find_arch_include_sources ${SRCARCH} '*.[chS]'
	if [ ! -z "$archinclude" ]; then
		find_arch_include_sources $archinclude '*.[chS]'
	fi
	find_include_sources '*.[chS]'
	for arch in $ALLSOURCE_ARCHS
	do
		find_sources $arch '*.[chS]'
	done
	find_other_sources '*.[chS]'
}

all_kconfigs()
{
	for arch in $ALLSOURCE_ARCHS; do
		find_sources $arch 'Kconfig*'
	done
	find_other_sources 'Kconfig*'
}

all_defconfigs()
{
	find_sources $ALLSOURCE_ARCHS "defconfig"
}

docscope()
{
	(echo \-k; echo \-q; all_sources) > cscope.files
	cscope -b -f cscope.out
}

dogtags()
{
	all_sources | gtags -i -f -
}

exuberant()
{
	all_sources | xargs $1 -a                               \
	-I __initdata,__exitdata,__acquires,__releases          \
	-I __read_mostly,____cacheline_aligned                  \
	-I ____cacheline_aligned_in_smp                         \
	-I ____cacheline_internodealigned_in_smp                \
	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL                      \
	-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
	--extra=+f --c-kinds=+px                                \
	--regex-asm='/^(ENTRY|_GLOBAL)\(([^)]*)\).*/\2/'        \
	--regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
	--regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/'		\
	--regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/'	\
	--regex-c++='/PAGEFLAG\(([^,)]*).*/Page\1/'			\
	--regex-c++='/PAGEFLAG\(([^,)]*).*/SetPage\1/'			\
	--regex-c++='/PAGEFLAG\(([^,)]*).*/ClearPage\1/'		\
	--regex-c++='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/'		\
	--regex-c++='/TESTPAGEFLAG\(([^,)]*).*/Page\1/'			\
	--regex-c++='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/'		\
	--regex-c++='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/'		\
	--regex-c++='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'	\
	--regex-c++='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'	\
	--regex-c++='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/'		\
	--regex-c++='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/'	\
	--regex-c++='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/'		\
	--regex-c++='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/'		\
	--regex-c++='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/'		\
	--regex-c++='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/'		\
	--regex-c++='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/'		\
	--regex-c++='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/'		\
	--regex-c++='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/'	\
	--regex-c++='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/'	\
	--regex-c++='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
	--regex-c++='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/'

	all_kconfigs | xargs $1 -a                              \
	--langdef=kconfig --language-force=kconfig              \
	--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'

	all_kconfigs | xargs $1 -a                              \
	--langdef=kconfig --language-force=kconfig              \
	--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'

	all_defconfigs | xargs -r $1 -a                         \
	--langdef=dotconfig --language-force=dotconfig          \
	--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
}

emacs()
{
	all_sources | xargs $1 -a                               \
	--regex='/^(ENTRY|_GLOBAL)(\([^)]*\)).*/\2/'            \
	--regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'   \
	--regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/'		\
	--regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/' \
	--regex='/PAGEFLAG\(([^,)]*).*/Page\1/'			\
	--regex='/PAGEFLAG\(([^,)]*).*/SetPage\1/'		\
	--regex='/PAGEFLAG\(([^,)]*).*/ClearPage\1/'		\
	--regex='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/'	\
	--regex='/TESTPAGEFLAG\(([^,)]*).*/Page\1/'		\
	--regex='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/'		\
	--regex='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/'	\
	--regex='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'	\
	--regex='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'	\
	--regex='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/'	\
	--regex='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/'	\
	--regex='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/'		\
	--regex='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/'	\
	--regex='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/'		\
	--regex='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/'	\
	--regex='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/'	\
	--regex='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/'	\
	--regex='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/'	\
	--regex='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/' \
	--regex='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
	--regex='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/'

	all_kconfigs | xargs $1 -a                              \
	--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'

	all_kconfigs | xargs $1 -a                              \
	--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'

	all_defconfigs | xargs -r $1 -a                         \
	--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
}

xtags()
{
	if $1 --version 2>&1 | grep -iq exuberant; then
		exuberant $1
	elif $1 --version 2>&1 | grep -iq emacs; then
		emacs $1
	else
		all_sources | xargs $1 -a
        fi
}


# Support um (which uses SUBARCH)
if [ "${ARCH}" = "um" ]; then
	if [ "$SUBARCH" = "i386" ]; then
		archinclude=x86
	elif [ "$SUBARCH" = "x86_64" ]; then
		archinclude=x86
	else
		archinclude=${SUBARCH}
	fi
fi

remove_structs=
case "$1" in
	"cscope")
		docscope
		;;

	"gtags")
		dogtags
		;;

	"tags")
		rm -f tags
		xtags ctags
		remove_structs=y
		;;

	"TAGS")
		rm -f TAGS
		xtags etags
		remove_structs=y
		;;
esac

# Remove structure forward declarations.
if [ -n $remove_structs ]; then
    LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1
fi
Commit	Line	Data
a680eedc SR	1	#!/bin/sh
	2	# Generate tags or cscope files
	3	# Usage tags.sh <mode>
	4	#
	5	# mode may be any of: tags, TAGS, cscope
	6	#
	7	# Uses the following environment variables:
a8bac511	8	# ARCH, SUBARCH, SRCARCH, srctree, src, obj
a680eedc	9
a6ba0cb3	10	if [ "$KBUILD_VERBOSE" = "1" ]; then
a680eedc SR	11	set -x
	12	fi
	13
	14	# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
	15	ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
	16	-name CVS -o -name .pc -o -name .hg -o \
	17	-name .git ) \
	18	-prune -o"
	19
4431d4ce	20	# Do not use full path if we do not use O=.. builds
e93bc1a0 MM	21	# Use make O=. {tags\|cscope}
e93bc1a0 MM	22	# to force full paths for a non-O= build
a6ba0cb3	23	if [ "${KBUILD_SRC}" = "" ]; then
a680eedc SR	24	tree=
a680eedc SR	25	else
709cc372	26	tree=${srctree}/
a680eedc SR	27	fi
a680eedc SR	28
bc75cc6b JK	29	# Find all available archs
	30	find_all_archs()
	31	{
	32	ALLSOURCE_ARCHS=""
	33	for arch in `ls ${tree}arch`; do
	34	ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/}
	35	done
	36	}
	37
4f628248 JS	38	# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
	39	if [ "${ALLSOURCE_ARCHS}" = "" ]; then
	40	ALLSOURCE_ARCHS=${SRCARCH}
bc75cc6b JK	41	elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
bc75cc6b JK	42	find_all_archs
4f628248 JS	43	fi
4f628248 JS	44
a680eedc SR	45	# find sources in arch/$ARCH
	46	find_arch_sources()
	47	{
f81b1be4 GL	48	for i in $archincludedir; do
	49	prune="$prune -wholename $i -prune -o"
	50	done
	51	find ${tree}arch/$1 $ignore $prune -name "$2" -print;
a680eedc SR	52	}
	53
	54	# find sources in arch/$1/include
	55	find_arch_include_sources()
	56	{
f81b1be4 GL	57	include=$(find ${tree}arch/$1/ -name include -type d);
	58	if [ -n "$include" ]; then
	59	archincludedir="$archincludedir $include"
	60	find $include $ignore -name "$2" -print;
	61	fi
a680eedc SR	62	}
	63
	64	# find sources in include/
	65	find_include_sources()
	66	{
709cc372	67	find ${tree}include $ignore -name config -prune -o -name "$1" -print;
a680eedc SR	68	}
	69
	70	# find sources in rest of tree
	71	# we could benefit from a list of dirs to search in here
	72	find_other_sources()
	73	{
	74	find ${tree}* $ignore \
	75	\( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
709cc372	76	-name "$1" -print;
a680eedc SR	77	}
	78
	79	find_sources()
	80	{
709cc372	81	find_arch_sources $1 "$2"
a680eedc SR	82	}
	83
	84	all_sources()
	85	{
a8bac511	86	find_arch_include_sources ${SRCARCH} '*.[chS]'
a680eedc	87	if [ ! -z "$archinclude" ]; then
709cc372	88	find_arch_include_sources $archinclude '*.[chS]'
a680eedc	89	fi
4f628248	90	find_include_sources '*.[chS]'
f81b1be4 GL	91	for arch in $ALLSOURCE_ARCHS
	92	do
	93	find_sources $arch '*.[chS]'
	94	done
4f628248	95	find_other_sources '*.[chS]'
a680eedc SR	96	}
	97
	98	all_kconfigs()
	99	{
953fae66 AD	100	for arch in $ALLSOURCE_ARCHS; do
	101	find_sources $arch 'Kconfig*'
	102	done
	103	find_other_sources 'Kconfig*'
a680eedc SR	104	}
	105
	106	all_defconfigs()
	107	{
4f628248	108	find_sources $ALLSOURCE_ARCHS "defconfig"
a680eedc SR	109	}
	110
	111	docscope()
	112	{
e93bc1a0	113	(echo \-k; echo \-q; all_sources) > cscope.files
a680eedc SR	114	cscope -b -f cscope.out
	115	}
	116
f4ed1009 JK	117	dogtags()
f4ed1009 JK	118	{
98bd4622	119	all_sources \| gtags -i -f -
f4ed1009 JK	120	}
f4ed1009 JK	121
a680eedc SR	122	exuberant()
a680eedc SR	123	{
a680eedc SR	124	all_sources \| xargs $1 -a \
	125	-I __initdata,__exitdata,__acquires,__releases \
	126	-I __read_mostly,____cacheline_aligned \
	127	-I ____cacheline_aligned_in_smp \
	128	-I ____cacheline_internodealigned_in_smp \
	129	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
7db86dc9	130	-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
0a18a938	131	--extra=+f --c-kinds=+px \
9c65426a	132	--regex-asm='/^(ENTRY\|_GLOBAL)\(([^)])\)./\2/' \
15664125 PZ	133	--regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)])./sys_\1/' \
15664125 PZ	134	--regex-c++='/^TRACE_EVENT\(([^,)])./trace_\1/' \
358142dd SB	135	--regex-c++='/^DEFINE_EVENT\([^,)], ([^,)])./trace_\1/' \
	136	--regex-c++='/PAGEFLAG\(([^,)])./Page\1/' \
	137	--regex-c++='/PAGEFLAG\(([^,)])./SetPage\1/' \
	138	--regex-c++='/PAGEFLAG\(([^,)])./ClearPage\1/' \
	139	--regex-c++='/TESTSETFLAG\(([^,)])./TestSetPage\1/' \
	140	--regex-c++='/TESTPAGEFLAG\(([^,)])./Page\1/' \
	141	--regex-c++='/SETPAGEFLAG\(([^,)])./SetPage\1/' \
	142	--regex-c++='/__SETPAGEFLAG\(([^,)])./__SetPage\1/' \
	143	--regex-c++='/TESTCLEARFLAG\(([^,)])./TestClearPage\1/' \
	144	--regex-c++='/__TESTCLEARFLAG\(([^,)])./TestClearPage\1/' \
	145	--regex-c++='/CLEARPAGEFLAG\(([^,)])./ClearPage\1/' \
	146	--regex-c++='/__CLEARPAGEFLAG\(([^,)])./__ClearPage\1/' \
	147	--regex-c++='/__PAGEFLAG\(([^,)])./__SetPage\1/' \
	148	--regex-c++='/__PAGEFLAG\(([^,)])./__ClearPage\1/' \
	149	--regex-c++='/PAGEFLAG_FALSE\(([^,)])./Page\1/' \
	150	--regex-c++='/TESTSCFLAG\(([^,)])./TestSetPage\1/' \
	151	--regex-c++='/TESTSCFLAG\(([^,)])./TestClearPage\1/' \
	152	--regex-c++='/SETPAGEFLAG_NOOP\(([^,)])./SetPage\1/' \
	153	--regex-c++='/CLEARPAGEFLAG_NOOP\(([^,)])./ClearPage\1/' \
	154	--regex-c++='/__CLEARPAGEFLAG_NOOP\(([^,)])./__ClearPage\1/' \
	155	--regex-c++='/TESTCLEARFLAG_FALSE\(([^,)])./TestClearPage\1/' \
	156	--regex-c++='/__TESTCLEARFLAG_FALSE\(([^,)])./__TestClearPage\1/'
a680eedc SR	157
	158	all_kconfigs \| xargs $1 -a \
	159	--langdef=kconfig --language-force=kconfig \
	160	--regex-kconfig='/^[[:blank:]]*(menu\|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
	161
	162	all_kconfigs \| xargs $1 -a \
	163	--langdef=kconfig --language-force=kconfig \
	164	--regex-kconfig='/^[[:blank:]]*(menu\|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
	165
	166	all_defconfigs \| xargs -r $1 -a \
	167	--langdef=dotconfig --language-force=dotconfig \
	168	--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
a680eedc SR	169	}
	170
	171	emacs()
	172	{
5123b327	173	all_sources \| xargs $1 -a \
9c65426a	174	--regex='/^(ENTRY\|_GLOBAL)(\([^)]\))./\2/' \
4d7a2fa8 SR	175	--regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]\)./sys_\1/' \
4d7a2fa8 SR	176	--regex='/^TRACE_EVENT(\([^,)]\)./trace_\1/' \
358142dd SB	177	--regex='/^DEFINE_EVENT([^,)], \([^,)]\)./trace_\1/' \
	178	--regex='/PAGEFLAG\(([^,)])./Page\1/' \
	179	--regex='/PAGEFLAG\(([^,)])./SetPage\1/' \
	180	--regex='/PAGEFLAG\(([^,)])./ClearPage\1/' \
	181	--regex='/TESTSETFLAG\(([^,)])./TestSetPage\1/' \
	182	--regex='/TESTPAGEFLAG\(([^,)])./Page\1/' \
	183	--regex='/SETPAGEFLAG\(([^,)])./SetPage\1/' \
	184	--regex='/__SETPAGEFLAG\(([^,)])./__SetPage\1/' \
	185	--regex='/TESTCLEARFLAG\(([^,)])./TestClearPage\1/' \
	186	--regex='/__TESTCLEARFLAG\(([^,)])./TestClearPage\1/' \
	187	--regex='/CLEARPAGEFLAG\(([^,)])./ClearPage\1/' \
	188	--regex='/__CLEARPAGEFLAG\(([^,)])./__ClearPage\1/' \
	189	--regex='/__PAGEFLAG\(([^,)])./__SetPage\1/' \
	190	--regex='/__PAGEFLAG\(([^,)])./__ClearPage\1/' \
	191	--regex='/PAGEFLAG_FALSE\(([^,)])./Page\1/' \
	192	--regex='/TESTSCFLAG\(([^,)])./TestSetPage\1/' \
	193	--regex='/TESTSCFLAG\(([^,)])./TestClearPage\1/' \
	194	--regex='/SETPAGEFLAG_NOOP\(([^,)])./SetPage\1/' \
	195	--regex='/CLEARPAGEFLAG_NOOP\(([^,)])./ClearPage\1/' \
	196	--regex='/__CLEARPAGEFLAG_NOOP\(([^,)])./__ClearPage\1/' \
	197	--regex='/TESTCLEARFLAG_FALSE\(([^,)])./TestClearPage\1/' \
	198	--regex='/__TESTCLEARFLAG_FALSE\(([^,)])./__TestClearPage\1/'
a680eedc SR	199
	200	all_kconfigs \| xargs $1 -a \
	201	--regex='/^[ \t]\(\(menu\)config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
	202
	203	all_kconfigs \| xargs $1 -a \
	204	--regex='/^[ \t]\(\(menu\)config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
	205
	206	all_defconfigs \| xargs -r $1 -a \
	207	--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
	208	}
	209
	210	xtags()
	211	{
	212	if $1 --version 2>&1 \| grep -iq exuberant; then
	213	exuberant $1
	214	elif $1 --version 2>&1 \| grep -iq emacs; then
	215	emacs $1
	216	else
	217	all_sources \| xargs $1 -a
	218	fi
	219	}
	220
	221
	222	# Support um (which uses SUBARCH)
a6ba0cb3 JS	223	if [ "${ARCH}" = "um" ]; then
a6ba0cb3 JS	224	if [ "$SUBARCH" = "i386" ]; then
a680eedc	225	archinclude=x86
a6ba0cb3	226	elif [ "$SUBARCH" = "x86_64" ]; then
a680eedc SR	227	archinclude=x86
	228	else
	229	archinclude=${SUBARCH}
	230	fi
	231	fi
	232
66979224	233	remove_structs=
a680eedc SR	234	case "$1" in
	235	"cscope")
	236	docscope
	237	;;
	238
f4ed1009 JK	239	"gtags")
	240	dogtags
	241	;;
	242
a680eedc	243	"tags")
2e6cb8b0	244	rm -f tags
a680eedc	245	xtags ctags
66979224	246	remove_structs=y
a680eedc SR	247	;;
	248
	249	"TAGS")
2e6cb8b0	250	rm -f TAGS
a680eedc	251	xtags etags
66979224	252	remove_structs=y
a680eedc SR	253	;;
a680eedc SR	254	esac
66979224 YB	255
	256	# Remove structure forward declarations.
	257	if [ -n $remove_structs ]; then
	258	LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]\)\t.\t\/\^struct \1;.*\$\/;"\tx$/d' $1
	259	fi