Add some option in configure to help Gentoo people. Closes #1045. Closes #1046

THANKS

@@ -11,8 +11,9 @@ The VideoLAN team would like to thank the following contributors:
 Alex Antropoff <alant at transtelecom dot md> - RFC3016 (LATM) RTP packetizer extension
 Alexander Didebulidze <alexander.didebulidze at stusta dot mhn dot de> - Georgian localization
 Alexander Gall <gall at switch dot ch> - Solaris fixes and CDDB fixes
-Andrea Guzzo <xant at xant dot net> - dc1394 firewire support
+Alexis Ballier <aballlier at gentoo dot org> - Additional options in configure
 Alex Izvorski <aizvorski at gmail dot com> - some more x264 options
+Andrea Guzzo <xant at xant dot net> - dc1394 firewire support
 André de Barros Martins Ribeiro <andrerib at ajato.com.br> - Brazilian portuguese localization
 Andre Pang <adre.pang at csiro dot au> - Annodex support
 Andres Krapf <dae at via.ecp.fr> - FreeBSD port and tests, KDE interface

configure.ac

@@ -3122,10 +3122,14 @@ AC_CHECK_HEADERS(sysfs/libsysfs.h, [
 dnl
 dnl skins2 module
 dnl
-AC_CHECK_HEADERS(libtar.h, [
-  VLC_ADD_LDFLAGS([skins2],[-ltar])
-] )
+AC_ARG_ENABLE(libtar,
+  [  --enable libtar support for skins2 (default enabled)])
 
+AS_IF([test "${enable_libtar}" != "no"],[
+  AC_CHECK_HEADERS(libtar.h, [
+    VLC_ADD_LDFLAGS([skins2],[-ltar])
+  ] )
+])
 
 
 dnl
@@ -3821,6 +3825,8 @@ dnl  SDL module
 dnl
 AC_ARG_ENABLE(sdl,
   [  --enable-sdl            SDL support (default enabled)])
+AC_ARG_ENABLE(sdl-image,
+  [  --enable-sdl-image            SDL image support (default enabled)])
 if test "${enable_sdl}" != "no"
 then
   SDL_PATH="${PATH}"
@@ -3874,6 +3880,7 @@ then
 Please install it and try again. Alternatively you can also configure with
 --disable-sdl.])
       ])])
+    AS_IF([ test "${enable_sdl_image}" != "no"],[
       AC_CHECK_HEADERS(${SDL_IMAGE}, [AC_DEFINE_UNQUOTED(SDL_IMAGE_INCLUDE_FILE,
         <${SDL_IMAGE}>, Indicate the path of SDL_image.h)
         VLC_ADD_PLUGINS([sdl_image])
@@ -3887,8 +3894,9 @@ Please install it and try again. Alternatively you can also configure with
         [ AC_CHECK_HEADERS(SDL_image.h, AC_DEFINE(SDL_IMAGE_INCLUDE_FILE, <SDL_image.h>,
             As a last resort we also test for SDL_image.h presence),
         [ AC_MSG_WARN([The development package for SDL_image is not installed.
-You should install it alongside your SDL package.])
+  You should install it alongside your SDL package.])
         ])])
+    ])
     CPPFLAGS="${CPPFLAGS_save}"
     if expr 1.1.5 \> `${SDL_CONFIG} --version` >/dev/null
     then