diff --git a/scripts/cpython-build-emsdk-deps.sh b/scripts/cpython-build-emsdk-deps.sh
index fafb8ae..977d820 100755
--- a/scripts/cpython-build-emsdk-deps.sh
+++ b/scripts/cpython-build-emsdk-deps.sh
@@ -32,46 +32,7 @@ done
 
 if ${EXTRA:-false}
 then
-    for pkg in $ROOT/sources.extra/*.sh
-    do
-        cd $ROOT
-        chmod +x $pkg
-        echo "
-
-        Third party : $pkg
-
-
-    "
-        if $pkg
-        then
-            echo "$pkg : done"
-        else
-            echo "
-
-    Failed to build extra $pkg
-
-    "
-            exit 54
-        fi
-    done
-
-
-    # those depend on nanoX/microwindows compiled above
-    if [ -d $ROOT/sources.extra/x11 ]
-    then
-        for pkg in $ROOT/sources.extra/x11/*.sh
-        do
-            cd $ROOT
-            chmod +x $pkg
-            echo "
-
-            Third party (X11) : $pkg
-
-
-        "
-            $pkg
-        done
-    fi
+    . scripts/cpython-build-emsdk-extra.sh
 fi
 
 cd $ROOT
diff --git a/scripts/cpython-build-emsdk-extra.sh b/scripts/cpython-build-emsdk-extra.sh
new file mode 100755
index 0000000..a5c5e1d
--- /dev/null
+++ b/scripts/cpython-build-emsdk-extra.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+. ${CONFIG:-config}
+
+for pkg in $ROOT/sources.extra/*.sh
+do
+    cd $ROOT
+    chmod +x $pkg
+    echo "
+
+    Third party : $pkg
+
+"
+    if $pkg
+    then
+        echo "$pkg : done"
+    else
+        echo "
+
+Failed to build extra $pkg
+
+"
+        exit 54
+    fi
+done
+
+
+# those depend on nanoX/microwindows compiled above
+if [ -d $ROOT/sources.extra/x11 ]
+then
+    for pkg in $ROOT/sources.extra/x11/*.sh
+    do
+        cd $ROOT
+        chmod +x $pkg
+        echo "
+
+        Third party (X11) : $pkg
+
+
+    "
+        $pkg
+    done
+fi
+
+
diff --git a/sources.extra/3000-libxml2-libicu.sh b/sources.extra/3000-libxml2-libicu.sh
index 11a70e8..737954a 100755
--- a/sources.extra/3000-libxml2-libicu.sh
+++ b/sources.extra/3000-libxml2-libicu.sh
@@ -2,26 +2,27 @@
 
 . ${CONFIG:-config}
 
-. scripts/emsdk-fetch.sh
 
-cd ${ROOT}/src
-
-if [ -d icu ]
+if [ -d src/icu ]
 then
     echo ok
 else
-    wget -c https://github.com/unicode-org/icu/releases/download/release-75-1/icu4c-75_1-src.tgz
-    tar xfz icu4c-75_1-src.tgz
-
+    pushd ${ROOT}/src
+        wget -c https://github.com/unicode-org/icu/releases/download/release-75-1/icu4c-75_1-src.tgz
+        tar xfz icu4c-75_1-src.tgz
+    popd
 fi
 
 if [ -f $PREFIX/lib/libicui18n.a ]
 then
     echo "
-        already built in $PREFIX/lib/
+        $PREFIX/lib/libicui18n.a already built
     "
 else
+    . scripts/emsdk-fetch.sh
+
     mkdir -p $ROOT/build/libicu
+
     pushd $ROOT/build/libicu
         if emconfigure $ROOT/src/icu/source/configure --prefix=$PREFIX \
          --disable-shared --enable-static \
@@ -32,14 +33,20 @@ else
             grep -v DDEFAULT_ICU_PLUGINS ./common/Makefile > ./common/Makefile.patched
             rm ./common/Makefile && ln ./common/Makefile.patched ./common/Makefile
             emmake make install
-        else
-            echo "
+        fi
+    popd
+
+    if [ -f $PREFIX/lib/libicui18n.a ]
+    then
+        echo -n
+    else
+        echo "
 
     failed to build ICU
 
 "
-            exit 38
-        fi
-    popd
+        exit 49
+
+    fi
 fi
 
diff --git a/sources.extra/5000-proj.sh b/sources.extra/5000-proj.sh
index c6bfe61..ed24085 100644
--- a/sources.extra/5000-proj.sh
+++ b/sources.extra/5000-proj.sh
@@ -1,19 +1,20 @@
 #!/bin/bash
 
-. scripts/emsdk-fetch.sh
+. ${CONFIG:-config}
 
-cd ${ROOT}/src
 
-if [ -d libproj ]
+
+if [ -d src/libproj ]
 then
     echo ok
 else
-    wget -c https://download.osgeo.org/proj/proj-9.4.0.tar.gz
-    tar xvfz proj-9.4.0.tar.gz
-    mv proj-9.4.0 libproj
-
-    pushd libproj
-    # patch
+    pushd ${ROOT}/src
+        wget -c https://download.osgeo.org/proj/proj-9.4.0.tar.gz
+        tar xvfz proj-9.4.0.tar.gz
+        mv proj-9.4.0 libproj
+        pushd libproj
+            # patch
+        popd
     popd
 fi
 
@@ -21,15 +22,30 @@ fi
 if [ -f $PREFIX/lib/libproj.a ]
 then
     echo "
-        already built in $PREFIX/lib/libproj.a
+        $PREFIX/lib/libproj.a already built
     "
 else
+    . scripts/emsdk-fetch.sh
+
     mkdir -p $ROOT/build/libproj
+
     pushd $ROOT/build/libproj
-    emcmake cmake ../../src/libproj \
-     -DCMAKE_INSTALL_PREFIX=$PREFIX -DENABLE_TIFF=NO -DENABLE_CURL=NO -DUSE_EXTERNAL_GTEST=NO -DBUILD_PROJSYNC=no
-    emmake make -j $(nproc) install
+        EMCC_CFLAGS="-sDISABLE_EXCEPTION_CATCHING=1" emcmake cmake ../../src/libproj \
+         -DCMAKE_INSTALL_PREFIX=$PREFIX -DENABLE_TIFF=NO -DENABLE_CURL=NO -DUSE_EXTERNAL_GTEST=NO -DBUILD_PROJSYNC=no
+        EMCC_CFLAGS="-sDISABLE_EXCEPTION_CATCHING=1" emmake make -j $(nproc) install
     popd
+
+    if [ -f $PREFIX/lib/libproj.a ]
+    then
+        echo -n
+    else
+        echo "
+
+    failed to build PROJ
+
+"
+        exit 47
+    fi
 fi
 
 
diff --git a/sources.extra/7000-gdal.sh b/sources.extra/7000-gdal.sh
index 9258bf9..6a4b345 100755
--- a/sources.extra/7000-gdal.sh
+++ b/sources.extra/7000-gdal.sh
@@ -1,22 +1,21 @@
 #!/bin/bash
 
-. scripts/emsdk-fetch.sh
+. ${CONFIG:-config}
 
-cd ${ROOT}/src
+DO_PATCH=true
 
-DO_PATCH=false
-
-if [ -d libgdal ]
+if [ -d src/libgdal ]
 then
     echo ok
 else
-    wget -c https://github.com/OSGeo/gdal/releases/download/v3.9.1/gdal-3.9.1.tar.gz
-    tar xfz gdal-3.9.1.tar.gz
-    mv gdal-3.9.1 libgdal
-    pushd libgdal
-        if $DO_PATCH
-        then
-            patch -p1 <<END
+    pushd ${ROOT}/src
+        wget -c https://github.com/OSGeo/gdal/releases/download/v3.9.1/gdal-3.9.1.tar.gz
+        tar xfz gdal-3.9.1.tar.gz
+        mv gdal-3.9.1 libgdal
+        pushd libgdal
+            if $DO_PATCH
+            then
+                patch -p1 <<END
 --- gdal-3.9.1/port/cpl_recode_iconv.cpp
 +++ libgdal/port/cpl_recode_iconv.cpp
 @@ -297,8 +297,7 @@
@@ -39,9 +38,9 @@ else
          if (nConverted == static_cast<size_t>(-1))
          {
 END
-        fi
+            fi
+        popd
     popd
-
 fi
 
 if [ -f $PREFIX/lib/libgdal.a ]
@@ -51,6 +50,8 @@ then
     "
 else
 
+    . scripts/emsdk-fetch.sh
+
     mkdir -p $ROOT/build/libgdal
     pushd $ROOT/build/libgdal
 
@@ -95,6 +96,18 @@ END
     emmake make install
     mv ${ICONV_H}.save ${ICONV_H}
     popd
-    [ -f $PREFIX/lib/libgdal.a ] || exit 98
+
+fi
+
+if [ -f $PREFIX/lib/libgdal.a ]
+then
+    echo -n
+else
+    echo "
+
+    failed to build GDAL
+
+"
+    exit 110
 fi