Unverified Commit 8b928d35 authored by Birte Kristina Friesel's avatar Birte Kristina Friesel
Browse files

feh(1), --version: Document libmagic compile flag

parent 05a07126

config.mk

+3 −0
Changes for config.mk: 3 added lines, 0 removed lines.
Original line number Diff line number Diff line
@@ -72,6 +72,9 @@ endif 
ifeq (${magic},1)

	CFLAGS += -DHAVE_LIBMAGIC

	LDLIBS += -lmagic

	MAN_MAGIC = enabled

else

	MAN_MAGIC = disabled

endif



ifeq (${verscmp},1)

man/Makefile

+1 −0
Changes for man/Makefile: 1 added line, 0 removed lines.
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ all: ${TARGETS} 
	-e 's/\$$MAN_DEBUG\$$/${MAN_DEBUG}/' \

	-e 's/\$$MAN_EXIF\$$/${MAN_EXIF}/' \

	-e 's/\$$MAN_INOTIFY\$$/${MAN_INOTIFY}/' \

	-e 's/\$$MAN_MAGIC\$$/${MAN_MAGIC}/' \

	-e 's/\$$MAN_XINERAMA\$$/${MAN_XINERAMA}/' \

	< ${@:.1=.pre} > $@

man/feh.pre

+12 −9
Changes for man/feh.pre: 12 added lines, 9 removed lines.
Original line number Diff line number Diff line
@@ -41,6 +41,9 @@ libexif builtin EXIF reader $MAN_EXIF$ 
.It

inotify-based auto-reload of changed files $MAN_INOTIFY$

.

.It

libmagic $MAN_MAGIC$

.

.El

.

$MAN_DEBUG$
@@ -165,20 +168,20 @@ with a non-negative value to enable support for these formats. 
.

.Pp

.

As Imlib2 may take several seconds to determine whether it can load a file or

not

.Pq e.g. when attempting to open a large video ,

.Pq optional feature, $MAN_MAGIC$ in this build

.Nm

can use libmagic to only pass image files to Imlib2.

This feature is $MAN_MAGIC$ in this build.

When using

.Nm

checks each file's header before loading it.

If it looks like an image, it is passed on to Imlib2, otherwise, it is

assumed to be unloadable.

This greatly improves performance when working in directories with mixed files

.Pq i.e., directories which do not exclusively contain image files .

with lots of non-image files

.Pq especially with Imlib2 version 1.6.x or 1.7.0 ,

this can speed up the detection of non-image files significantly.

If you think that Imlib2 can load a file which

.Nm

has determined to be likely not an image, set the environment variable

.Qq FEH_SKIP_MAGIC

to pass all files directly to Imlib2, bypassing the header check.

to pass all files directly to Imlib2, bypassing this check.

The environment variable's value does not matter, it just needs to be set.

.

.Sh OPTIONS

src/options.c

+4 −0
Changes for src/options.c: 4 added lines, 0 removed lines.
Original line number Diff line number Diff line
@@ -976,6 +976,10 @@ static void show_version(void) 
		"help "

#endif



#ifdef HAVE_LIBMAGIC

		"magic "

#endif



#if _FILE_OFFSET_BITS == 64

		"stat64 "

#endif