diff --git a/Makefile.in b/Makefile.in
index 84316b2..65ac9b5 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -36,8 +36,8 @@ target_triplet = @target@
 subdir = .
 DIST_COMMON = README $(am__configure_deps) $(dist_doc_DATA) \
 	$(srcdir)/Makefile.am $(srcdir)/Makefile.in \
-	$(srcdir)/config.h.in $(top_srcdir)/configure COPYING TODO \
-	compile config.guess config.sub depcomp install-sh missing \
+	$(srcdir)/config.h.in $(top_srcdir)/configure COPYING compile \
+	config.guess config.sub depcomp install-sh missing \
 	mkinstalldirs
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/configure.ac
diff --git a/configure b/configure
index 024c15f..c6fff42 100755
--- a/configure
+++ b/configure
@@ -4479,7 +4479,7 @@ fi
 
 
 
-CFLAGS="$CFLAGS -DNDEBUG -O3"
+CFLAGS="$CFLAGS -DNDEBUG -O3 -Wall"
 
 case "$target_os" in
   *linux*)
diff --git a/configure.ac b/configure.ac
index 7ecc55e..3b32e82 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,7 +13,7 @@ AM_PROG_AS
 AC_PROG_CC
 AM_PROG_CC_C_O
 
-CFLAGS="$CFLAGS -DNDEBUG -O3"
+CFLAGS="$CFLAGS -DNDEBUG -O3 -Wall"
 
 case "$target_os" in
   *linux*)
diff --git a/scheme/Makefile.am b/scheme/Makefile.am
index bf333c2..6bc1285 100644
--- a/scheme/Makefile.am
+++ b/scheme/Makefile.am
@@ -8,9 +8,9 @@ EXTRA_DIST=ikarus.boot.prebuilt ikarus.enumerations.ss \
   ikarus.compiler.altcogen.ss ikarus.compiler.ss ikarus.control.ss \
   ikarus.date-string.ss ikarus.fasl.ss ikarus.fasl.write.ss \
   ikarus.fixnums.ss ikarus.guardians.ss ikarus.handlers.ss \
-  ikarus.hash-tables.ss ikarus.intel-assembler.ss  \
-  ikarus.lists.ss ikarus.load.ss \
-  ikarus.main.ss ikarus.multiple-values.ss ikarus.numerics.ss \
+  ikarus.hash-tables.ss ikarus.intel-assembler.ss \
+  ikarus.lists.ss ikarus.load.ss ikarus.main.ss \
+  ikarus.multiple-values.ss ikarus.numerics.ss \
   ikarus.pairs.ss ikarus.posix.ss ikarus.predicates.ss \
   ikarus.pretty-print.ss ikarus.promises.ss ikarus.reader.ss \
   ikarus.records.procedural.ss ikarus.conditions.ss \
diff --git a/scheme/Makefile.in b/scheme/Makefile.in
index d220c1d..869f1ef 100644
--- a/scheme/Makefile.in
+++ b/scheme/Makefile.in
@@ -162,9 +162,9 @@ EXTRA_DIST = ikarus.boot.prebuilt ikarus.enumerations.ss \
   ikarus.compiler.altcogen.ss ikarus.compiler.ss ikarus.control.ss \
   ikarus.date-string.ss ikarus.fasl.ss ikarus.fasl.write.ss \
   ikarus.fixnums.ss ikarus.guardians.ss ikarus.handlers.ss \
-  ikarus.hash-tables.ss ikarus.intel-assembler.ss  \
-  ikarus.lists.ss ikarus.load.ss \
-  ikarus.main.ss ikarus.multiple-values.ss ikarus.numerics.ss \
+  ikarus.hash-tables.ss ikarus.intel-assembler.ss \
+  ikarus.lists.ss ikarus.load.ss ikarus.main.ss \
+  ikarus.multiple-values.ss ikarus.numerics.ss \
   ikarus.pairs.ss ikarus.posix.ss ikarus.predicates.ss \
   ikarus.pretty-print.ss ikarus.promises.ss ikarus.reader.ss \
   ikarus.records.procedural.ss ikarus.conditions.ss \
diff --git a/scheme/last-revision b/scheme/last-revision
index cc7bb99..ab6c70d 100644
--- a/scheme/last-revision
+++ b/scheme/last-revision
@@ -1 +1 @@
-1216
+1217
diff --git a/src/ikarus-collect.c b/src/ikarus-collect.c
index beb7c4e..7d3c0e3 100644
--- a/src/ikarus-collect.c
+++ b/src/ikarus-collect.c
@@ -357,7 +357,6 @@ static void empty_dropped_guardians(gc_t*);
  */
 
 
-ikpcb* ik_collect(int req, ikpcb* pcb);
 ikpcb* ik_collect_vararg(int req, ikpcb* pcb){
   return ik_collect(req, pcb);
 }
diff --git a/src/ikarus-data.h b/src/ikarus-data.h
index 82ed73e..1480e8e 100644
--- a/src/ikarus-data.h
+++ b/src/ikarus-data.h
@@ -168,6 +168,7 @@ typedef struct ikpcb{
   struct timeval collect_rtime; 
 } ikpcb;
 
+ikpcb* ik_collect(int req, ikpcb* pcb);
 void ikarus_usage_short(void);
 
 void* ik_malloc(int);
diff --git a/src/ikarus-io.c b/src/ikarus-io.c
index 73516d5..12b222d 100644
--- a/src/ikarus-io.c
+++ b/src/ikarus-io.c
@@ -2,6 +2,7 @@
 #include <fcntl.h>
 #include <errno.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <sys/uio.h>
 #include <unistd.h>
 
diff --git a/src/ikarus-main.c b/src/ikarus-main.c
index b60c771..8912c93 100644
--- a/src/ikarus-main.c
+++ b/src/ikarus-main.c
@@ -141,7 +141,6 @@ int main(int argc, char** argv){
     ikarus_usage();
     exit(0);
   }
-  char buff[FILENAME_MAX];
   char* boot_file = get_option("-b", argc, argv);
   if(boot_file){
     argc -= 2;
diff --git a/src/scheme-script.c b/src/scheme-script.c
index 5eae129..ddeb3fb 100644
--- a/src/scheme-script.c
+++ b/src/scheme-script.c
@@ -19,6 +19,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
+#include <string.h>
 #include "bootfileloc.h"
 
 int main(int argc, char** argv){
@@ -35,7 +36,7 @@ int main(int argc, char** argv){
       a[i+1] = argv[i];
     }
     a[argc+1] = 0;
-    int rv = execv(EXEFILE, a);
+    execv(EXEFILE, a);
     fprintf(stderr, "Error executing ikarus from scheme-script: %s\n",
         strerror(errno));
     exit(-1);