gentoo-overlay/app-emulation/spectemu/files/spectemu-0.99.3-automagic.patch

--- configure.in
+++ configure.in
@@ -121,13 +121,22 @@
 dnl -----------------------------------------------------------
 dnl Check for SVGALIB
 dnl -----------------------------------------------------------
-AC_CHECK_LIB(vga, vga_setmode, no_vga="", no_vga=yes)
-if test "$no_vga" != yes; then
-   progs="$progs vgaspect"
-   vgalib=-lvga
 
-   LIBS="$vgalib $olibs"
-   AC_CHECK_FUNC(vga_runinbackground_version, AC_DEFINE(RUN_IN_BACKGROUND))
+svgalibs=""
+withsvga=no
+AC_ARG_WITH(svga,
+[  --with-svga         Compile with svga library],
+[if test "$withval" = no; then withsvga=no; fi])
+
+if test "$withsvga" = yes; then
+  AC_CHECK_LIB(vga, vga_setmode, no_vga="", no_vga=yes)
+  if test "$no_vga" != yes; then
+     progs="$progs vgaspect"
+     vgalib=-lvga
+
+     LIBS="$vgalib $olibs"
+     AC_CHECK_FUNC(vga_runinbackground_version, AC_DEFINE(RUN_IN_BACKGROUND))
+  fi
 fi
 
 LIBS="$olibs"