diff --git a/giteapc.make b/giteapc.make
index c2c8e51..8cbb896 100644
--- a/giteapc.make
+++ b/giteapc.make
@@ -1,25 +1,25 @@
 # giteapc: version=1
 
 PREFIX ?= $(GITEAPC_PREFIX)
-VERSION_BINUTILS = 2.37
-VERSION_GCC = 11.2
+VERSION_BINUTILS := 2.37
+VERSION_GCC := 11.2
 
 -include giteapc-config.make
 
 configure:
-	@ ./configure.sh --binutils $(VERSION_BINUTILS) "$(PREFIX)"
-	@ ./configure.sh --gcc $(VERSION_GCC) "$(PREFIX)"
+	@ ./scripts/binutils/configure --version=$(VERSION_BINUTILS)
+	@ ./scripts/gcc/configure.sh --version=$(VERSION_GCC)
 
 build:
-	@ ./build.sh --binutils
-	@ ./build.sh --gcc
+	@ ./scripts/binutils/build.sh
+	@ ./scripts/gcc/build.sh
 
 install:
-	@ ./install.sh --binutils "$(PREFIX)"
-	@ ./install.sh --gcc "$(PREFIX)"
+	@ ./scripts/binutils/install.sh --prefix="$(PREFIX)"
+	@ ./scripts/gcc/install.sh --prefix="$(PREFIX)"
 
 uninstall:
-	@ ./uninstall.sh --binutils "$(PREFIX)"
-	@ ./uninstall.sh --gcc "$(PREFIX)"
+	@ ./scripts/binutils/uninstall.sh --prefix="$(PREFIX)"
+	@ ./scripts/gcc/uninstall.sh --prefix="$(PREFIX)"
 
 .PHONY: configure build install uninstall
diff --git a/scripts/binutils/build.sh b/scripts/binutils/build.sh
index 80994ca..63b2ffe 100755
--- a/scripts/binutils/build.sh
+++ b/scripts/binutils/build.sh
@@ -47,17 +47,16 @@ TAG='<sh-elf-vhex-binutils>'
 [[ ! -d ../../build/binutils/build ]] && exit 0
 cd ../../build/binutils/build
 
-# Number of processor cores
-[[ $(uname) == "OpenBSD" ]] && cores=$(sysctl -n hw.ncpu) || cores=$(nproc)
 
-# selecte make utility
-[[ $(command -v gmake >/dev/null 2>&1) ]] && make_cmd=gmake || make_cmd=make
+# import some utility
+source ../../../scripts/utils.sh
 
+
+# build part
 echo "$TAG Compiling binutils (usually 5-10 minutes)..."
 
-if [[ "$verbose" == 'false' ]]; then
-  source ../../../scripts/util.sh
-  run_quietly giteapc-build.log $make_cmd -j"$cores"
-else
-  $make_cmd -j"$cores"
-fi
+$quiet $make_cmd -j"$cores"
+
+echo "$TAG Installing to local folder..."
+
+$quiet $make_cmd install-strip
diff --git a/scripts/binutils/configure.sh b/scripts/binutils/configure.sh
index 1f33ec3..2e281f7 100755
--- a/scripts/binutils/configure.sh
+++ b/scripts/binutils/configure.sh
@@ -2,7 +2,7 @@
 
 
 verbose=false
-no_cache=false
+cache=false
 version='?'
 prefix=
 
@@ -20,9 +20,8 @@ Usage $0 [options...]
 
 Configurations:
   -h, --help            Display this help
-  --no-cache            Do not keep the archive of binutils
+  --cache               Keep the archive of binutils
   --verbose             Display extra information during the configuration step
-  --prefix=<PREFIX>     Installation prefix
   --version=<VERSION>   Select the binutils version. If the '?' argument is
                         passed then all binutils version with Vhex patch
                         availables will be printed
@@ -41,7 +40,7 @@ OEF
 for arg; do case "$arg" in
   --help | -h)          help;;
   --verbose)            verbose=true;;
-  --no-cache)           no_cache=true;;
+  --cache)              cache=true;;
   --prefix=*)           prefix=${arg#*=};;
   --version=*)          version=${arg#*=};;
   *)
@@ -77,13 +76,12 @@ fi
 
 TAG='<sh-elf-vhex-binutils>'
 VERSION=$version
-PREFIX="$prefix"
 URL="https://ftp.gnu.org/gnu/binutils/binutils-$VERSION.tar.xz"
 ARCHIVE="../../cache/$(basename $URL)"
 
 # Avoid rebuilds of the same version
 
-existing_as="$PREFIX/bin/sh-elf-vhex-as"
+existing_as="../../build/binutils/bin/sh-elf-vhex-as"
 
 if [[ -f "$existing_as" ]]; then
   existing_version=$($existing_as --version | head -n 1 | grep -Eo '[0-9.]+$')
@@ -209,21 +207,16 @@ if command -v termux-setup-storage >/dev/null 2>&1; then
   CXXFLAGS="-D__ANDROID_API__=$(getprop ro.build.version.sdk) -g -O2"
 fi
 
-# Real configuration step
-if [[ "$verbose" == "true" ]]; then
-  ../binutils-$VERSION/configure --prefix="$PREFIX" --target=sh-elf-vhex \
-       --with-multilib-list=m3,m4-nofpu --disable-nls --enable-lto
-else
-  source ../../../scripts/util.sh
 
-  run_quietly giteapc-configure.log \
-    ../binutils-$VERSION/configure --prefix="$PREFIX" --target=sh-elf-vhex \
-        --with-multilib-list=m3,m4-nofpu --disable-nls --enable-lto
-fi
-cd ..
+# check quiet mode
+source ../../../scripts/utils.sh
+
+# Real configuration step
+$quiet ../binutils-$VERSION/configure --prefix="$PREFIX" --target=sh-elf-vhex \
+       --with-multilib-list=m3,m4-nofpu --disable-nls --enable-lto
 
 # cache management
-if [[ "$no_cache" == 'true' ]]; then
+if [[ "$cache" == 'false' ]]; then
    echo "$TAG Removing $ARCHIVE..."
    rm -f $ARCHIVE
 fi
diff --git a/scripts/binutils/install.sh b/scripts/binutils/install.sh
index ba9313b..49d1fd1 100755
--- a/scripts/binutils/install.sh
+++ b/scripts/binutils/install.sh
@@ -57,30 +57,7 @@ PREFIX="$prefix"
 # Avoid rebuilds of the same version
 
 [[ ! -d ../../build/binutils/build ]] && exit 0
-cd ../../build/binutils/build
-
-# add utilities
-
-source ../../../scripts/util.sh
-
-
-# check gmake or make (macos support)
-
-if command -v gmake >/dev/null 2>&1; then
-  make_command=gmake
-else
-  make_command=make
-fi
-
-# build part
-
-echo "$TAG Installing to local folder..."
-if [[ "$verbose" == 'true' ]]; then
-  $make_command install-strip
-else
-  run_quietly giteapc-install.log $make_command install-strip
-fi
-cd ..
+cd ../../build/binutils
 
 # Symbolic link executables to $PREFIX/bin
 
diff --git a/scripts/binutils/uninstall.sh b/scripts/binutils/uninstall.sh
index 28c7401..8fb33c5 100755
--- a/scripts/binutils/uninstall.sh
+++ b/scripts/binutils/uninstall.sh
@@ -46,6 +46,11 @@ esac; done
 TAG='<sh-elf-vhex-binutils>'
 PREFIX="$prefix"
 
+# Avoid rebuilds of the same version
+
+[[ ! -d ../../build/binutils ]] && exit 0
+cd ../../build/binutils
+
 # Remove symlinks
 echo "$TAG Removing symlinks to binaries..."
 for x in bin/*; do
@@ -54,4 +59,4 @@ done
 
 # Remove local files
 echo "$TAG Removing installed files..."
-rm -rf ../../build/binutils
+rm -rf ../binutils
diff --git a/scripts/compile.sh b/scripts/compile.sh
index eefa052..c22f808 100755
--- a/scripts/compile.sh
+++ b/scripts/compile.sh
@@ -2,12 +2,8 @@
 
 echo "Compil and install binutils"
 cd binutils
-./configure.sh --version=2.37 --prefix=/tmp \
-&& ./build.sh \
-&& ./install.sh --prefix=/tmp
+./configure.sh --version=2.37 && ./build.sh && ./install.sh --prefix=/tmp
 
 echo "Compil and install GCC"
 cd ../gcc
-./configure.sh --version=11.2.0 --prefix=/tmp \
-&& ./build.sh
-#&& ./install.sh --prefix=/home/yann/CASIO/vhex-compiler/sh-elf-vhex/scripts
+./configure.sh --version=11.2.0 && ./build.sh && ./install.sh --prefix=/tmp
diff --git a/scripts/gcc/build.sh b/scripts/gcc/build.sh
index 8a1fa89..cbb7925 100755
--- a/scripts/gcc/build.sh
+++ b/scripts/gcc/build.sh
@@ -56,16 +56,7 @@ esac; done
 TAG='<sh-elf-vhex-gcc>'
 
 # import utility
-source ../util.sh
-
-# Number of processor cores
-[[ $(uname) == "OpenBSD" ]] && cores=$(sysctl -n hw.ncpu) || cores=$(nproc)
-
-# check macos make utility
-[[ $(command -v gmake >/dev/null 2>&1) ]] && make_cmd=gmake || make_cmd=make
-
-# check quiet build
-[[ "$verbose" == "true" ]] && quiet='' || quiet='run_quietly giteapc-build.log'
+source ../utils.sh
 
 # OpenBSD apparently installs these in /usr/local
 extra_args=
diff --git a/scripts/gcc/configure.sh b/scripts/gcc/configure.sh
index 629bdfc..13793b0 100755
--- a/scripts/gcc/configure.sh
+++ b/scripts/gcc/configure.sh
@@ -1,9 +1,8 @@
 #! /usr/bin/env bash
 
 verbose=false
-no_cache=false
+cache=false
 version='?'
-prefix=
 
 
 #
@@ -21,7 +20,6 @@ Configurations:
   -h, --help            Display this help
   --no-cache            Do not keep the archive of binutils
   --verbose             Display extra information during the configuration step
-  --prefix=<PREFIX>     Installation prefix
   --version=<VERSION>   Select the GCC version. If the '?' argument is
                         passed then all binutils version with Vhex patch
                         availables will be printed
@@ -40,8 +38,7 @@ OEF
 for arg; do case "$arg" in
   --help | -h)          help;;
   --verbose)            verbose=true;;
-  --no-cache)           no_cache=true;;
-  --prefix=*)           prefix=${arg#*=};;
+  --cache)              cache=true;;
   --version=*)          version=${arg#*=};;
   *)
     echo "error: unreconized argument '$arg', giving up." >&2
@@ -74,20 +71,19 @@ fi
 
 TAG='<sh-elf-vhex-gcc>'
 VERSION="$version"
-PREFIX="$prefix"
 URL="https://ftp.gnu.org/gnu/gcc/gcc-$VERSION/gcc-$VERSION.tar.xz"
 ARCHIVE="../../cache/$(basename $URL)"
 
 # Avoid rebuilds of the same version
 
-existing_gcc="$PREFIX/bin/sh-elf-vhex-gcc"
+existing_gcc="../../build/gcc/bin/sh-elf-vhex-gcc"
 
 if [[ -f "$existing_gcc" ]]; then
   existing_version=$($existing_gcc --version | head -n 1 | grep -Eo '[0-9.]+$')
   if [[ $existing_version == $VERSION ]]; then
     echo "$TAG Version $VERSION already installed, skipping rebuild"
-    if [[ -e build ]]; then
-      rm -rf build
+    if [[ -e ../../build/gcc/build ]]; then
+      rm -rf ../../build/gcc/build
     fi
     exit 0
   fi
@@ -132,15 +128,15 @@ mv ./gcc-$VERSION/ ./gcc
 # Symlink as, ld, ar and ranlib, which gcc will not find by itself (we renamed
 # them from sh3eb-elf-* to sh-elf-* with --program-prefix).
 mkdir -p sh-elf-vhex/bin
-ln -sf $PREFIX/bin/sh-elf-vhex-as sh-elf-vhex/bin/as
-ln -sf $PREFIX/bin/sh-elf-vhex-ld sh-elf-vhex/bin/ld
-ln -sf $PREFIX/bin/sh-elf-vhex-ar sh-elf-vhex/bin/ar
-ln -sf $PREFIX/bin/sh-elf-vhex-ranlib sh-elf-vhex/bin/ranlib
+ln -sf $(pwd)/../binutils/bin/sh-elf-vhex-as sh-elf-vhex/bin/as
+ln -sf $(pwd)/../binutils/bin/sh-elf-vhex-ld sh-elf-vhex/bin/ld
+ln -sf $(pwd)/../binutils/bin/sh-elf-vhex-ar sh-elf-vhex/bin/ar
+ln -sf $(pwd)/../binutils/bin/sh-elf-vhex-ranlib sh-elf-vhex/bin/ranlib
 
-# patch OpenLibM building error (find for sh-elf-vhex-ar)
-ln -sf $PREFIX/bin/sh-elf-vhex-ar sh-elf-vhex/bin/sh-elf-vhex-ar
+# patch OpenLibM building error (which search for sh-elf-vhex-ar)
+ln -sf $(pwd)/../binutils/bin/sh-elf-vhex-ar sh-elf-vhex/bin/sh-elf-vhex-ar
 
-if [[ "$no_cache" == 'true' ]]; then
+if [[ "$cache" == 'false' ]]; then
    echo "$TAG Removing $ARCHIVE..."
    rm -f $ARCHIVE
 fi
diff --git a/scripts/gcc/uninstall.sh b/scripts/gcc/uninstall.sh
index 0fd10b8..f196630 100755
--- a/scripts/gcc/uninstall.sh
+++ b/scripts/gcc/uninstall.sh
@@ -29,6 +29,8 @@ OEF
 # Parse argument
 #
 
+[[ $# -eq 0 ]] && help
+
 for arg; do case "$arg" in
   --help | -h)          help;;
   --verbose)            verbose=true;;
@@ -46,6 +48,11 @@ esac; done
 TAG='<sh-elf-vhex-gcc>'
 PREFIX="$prefix"
 
+# Avoid rebuilds of the same version
+
+[[ ! -d ../../build/gcc ]] && exit 0
+cd ../../build/gcc
+
 # Remove symlinks
 echo "$TAG Removing symlinks to binaries..."
 for x in bin/*; do
@@ -54,4 +61,5 @@ done
 
 # Remove local files
 echo "$TAG Removing installed files..."
-rm -rf ../../build/gcc
+rm -rf ../gcc
+exit 0
diff --git a/scripts/util.sh b/scripts/util.sh
deleted file mode 100644
index 366954d..0000000
--- a/scripts/util.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-run_quietly() {
-  out="$1"
-  shift 1
-  "$@" >$out 2>&1
-  if [[ "$?" != 0 ]]; then
-    echo "$TAG error: build failed, please check $(pwd)/$out o(x_x)o"
-    exit 1
-  fi
-}
diff --git a/scripts/utils.sh b/scripts/utils.sh
new file mode 100644
index 0000000..23a4971
--- /dev/null
+++ b/scripts/utils.sh
@@ -0,0 +1,30 @@
+
+# select the appropriate quiet primitive
+quiet='run_normaly'
+[[ "$verbose" == "false" ]] && quiet='run_quietly giteapc-build.log'
+
+# Number of processor cores
+[[ $(uname) == "OpenBSD" ]] && cores=$(sysctl -n hw.ncpu) || cores=$(nproc)
+
+# selecte make utility
+[[ $(command -v gmake >/dev/null 2>&1) ]] && make_cmd=gmake || make_cmd=make
+
+## functions privided
+
+run_normaly() {
+  bash -c "$@"
+  if [[ "$?" != 0 ]]; then
+    echo "$TAG error: command failed, abord"
+    exit 1
+  fi
+}
+
+run_quietly() {
+  out="$1"
+  shift 1
+  "$@" >$out 2>&1
+  if [[ "$?" != 0 ]]; then
+    echo "$TAG error: command failed, please check $(pwd)/$out o(x_x)o"
+    exit 1
+  fi
+}