--- /usr/portage/dev-scheme/scm/scm-5.5.5-r1.ebuild	2009-02-03 14:34:28.000000000 -0200
+++ /usr/local/portage/dev-scheme/scm/scm-5.5.5-r1.ebuild	2009-09-15 02:10:38.000000000 -0300
@@ -17,7 +17,12 @@
 SLOT="0"
 LICENSE="LGPL-3"
 KEYWORDS="~amd64 ~x86"
-IUSE=""
+IUSE="array array-for-each arrays bignums byte byte-number
+careful-interrupt-masking cheap-continuations compiled-closure curses
+debug differ dont-memoize-locals dump 
+engineering-notation generalized-c-arguments i/o-extensions inexact lit macro
+no-heap-shrink none posix record regex rev2-procedures sicp
+single-precision-only socket tick-interrupts turtlegr unix X xlib"
 
 #unzip for unpacking
 RDEPEND=""
@@ -36,14 +41,68 @@
 }
 
 src_compile() {
+	echo "srcdir=/usr/share/scm/" > srcdir.mk
 	einfo "Making scmlit"
 	#parallel make fails sometimes
 	emake -j1 scmlit || die
 	einfo "Creating script to build scm"
-	echo "srcdir=/usr/share/scm/" > srcdir.mk
-	./build --compiler-options="${CFLAGS}" --linker-options="${LDFLAGS}" -F macro -F inexact &> _compile.sh || die
+
+	# Some features give errors, here's a detailed list:
+	# mysql              --> ERROR: database.c not found
+	# dynamic-linking    --> It hasn't been implemented yet
+	# caution            --> Causes errors
+	# edit-line          --> Dependency problem with ltermcap
+	# reckless           --> repl.c and eval.c doesn't build with this feature
+	# wb                 --> It gives these errors:
+	#                                      gcc: db.o: No such file or directory
+	#                                      gcc: wbsys.o: No such file or directory
+	#                                      gcc: stats.o: No such file or directory
+	#                                      gcc: segs.o: No such file or directory
+	#                                      gcc: scan.o: No such file or directory
+	#                                      gcc: prev.o: No such file or directory
+	#                                      gcc: handle.o: No such file or directory
+	#                                      gcc: ents.o: No such file or directory
+	#                                      gcc: del.o: No such file or directory
+	#                                      gcc: blkio.o: No such file or directory
+	#                                      gcc: blink.o: No such file or directory
+
+	./build --compiler-options="${CFLAGS}" --linker-options="${LDFLAGS}" \
+	$(use array && echo "-F array") \
+	$(use array-for-each && echo "-F array-for-each") \
+	$(use arrays && echo "-F arrays") \
+	$(use bignums && echo "-F bignums") \
+	$(use byte && echo "-F byte") \
+	$(use byte-number && echo "-F byte-number") \
+	$(use careful-interrupt-masking && echo "-F careful-interrupt-masking") \
+	$(use cheap-continuations && echo "-F cheap-continuations") \
+	$(use compiled-closure && echo "-F compiled-closure") \
+	$(use curses && echo "-F curses") \
+	$(use debug && echo "-F debug") \
+	$(use differ && echo "-F differ") \
+	$(use dont-memoize-locals && echo "-F dont-memoize-locals") \
+	$(use dump && echo "-F dump") \
+	$(use engineering-notation && echo "-F engineering-notation") \
+	$(use generalized-c-arguments && echo "-F generalized-c-arguments") \
+	$(use i/o-extensions && echo "-F i/o-extensions") \
+	$(use inexact && echo "-F inexact") \
+	$(use lit && echo "-F lit") \
+	$(use macro && echo "-F macro") \
+	$(use no-heap-shrink && echo "-F no-heap-shrink") \
+	$(use none && echo "-F none") \
+	$(use posix && echo "-F posix") \
+	$(use record && echo "-F record") \
+	$(use regex && echo "-F regex") \
+	$(use rev2-procedures && echo "-F rev2-procedures") \
+	$(use sicp && echo "-F sicp") \
+	$(use single-precision-only && echo "-F single-precision-only") \
+	$(use socket && echo "-F socket") \
+	$(use tick-interrupts && echo "-F tick-interrupts") \
+	$(use turtlegr && echo "-F turtlegr") \
+	$(use unix && echo "-F unix") \
+	$(use X && echo "-F x") \
+	$(use xlib && echo "-F xlib") &> _compile.sh || die "Error creating build script"
 	einfo "Building scm"
-	sh _compile.sh || die
+	sh _compile.sh || die "Error building"
 }
 
 src_install() {