6 files changed, 13 insertions, 11 deletions
diff --git a/scripts/build/companion_libs/100-gmp.sh b/scripts/build/companion_libs/100-gmp.sh
index 8674f16..beb75ea 100644
--- a/scripts/build/companion_libs/100-gmp.sh
+++ b/scripts/build/companion_libs/100-gmp.sh
@@ -12,7 +12,9 @@ if [ "${CT_GMP}" = "y" ]; then
 
 # Download GMP
 do_gmp_get() {
-    CT_GetFile "gmp-${CT_GMP_VERSION}" {ftp,http}://{ftp.sunet.se/pub,ftp.gnu.org}/gnu/gmp
+    CT_GetFile "gmp-${CT_GMP_VERSION}"         \
+        https://gmplib.org/download/gmp        \
+        {http,ftp,https}://ftp.gnu.org/gnu/gmp
 }
 
 # Extract GMP
diff --git a/scripts/build/companion_libs/110-mpfr.sh b/scripts/build/companion_libs/110-mpfr.sh
index 1a917c2..2fb03aa 100644
--- a/scripts/build/companion_libs/110-mpfr.sh
+++ b/scripts/build/companion_libs/110-mpfr.sh
@@ -12,8 +12,9 @@ if [ "${CT_MPFR}" = "y" ]; then
 
 # Download MPFR
 do_mpfr_get() {
-    CT_GetFile "mpfr-${CT_MPFR_VERSION}" http://www.mpfr.org/mpfr-current/  \
-                                 http://www.mpfr.org/mpfr-${CT_MPFR_VERSION}/
+    CT_GetFile "mpfr-${CT_MPFR_VERSION}"            \
+        http://www.mpfr.org/mpfr-${CT_MPFR_VERSION} \
+        {http,ftp,https}://ftp.gnu.org/gnu/mpfr
 }
 
 # Extract MPFR
diff --git a/scripts/build/companion_libs/120-ppl.sh b/scripts/build/companion_libs/120-ppl.sh
index 87d1512..c95ea56 100644
--- a/scripts/build/companion_libs/120-ppl.sh
+++ b/scripts/build/companion_libs/120-ppl.sh
@@ -12,8 +12,9 @@ if [ "${CT_PPL}" = "y" ]; then
 
 # Download PPL
 do_ppl_get() {
-    CT_GetFile "ppl-${CT_PPL_VERSION}"  \
-        http://bugseng.com/products/ppl/download/ftp/releases/${CT_PPL_VERSION}
+    CT_GetFile "ppl-${CT_PPL_VERSION}"                                          \
+        http://bugseng.com/products/ppl/download/ftp/releases/${CT_PPL_VERSION} \
+        ftp://ftp.cs.unipr.it/pub/ppl/releases/${CT_PPL_VERSION}
 }
 
 # Extract PPL
diff --git a/scripts/build/companion_libs/121-isl.sh b/scripts/build/companion_libs/121-isl.sh
index 48b15df..6c06ab0 100644
--- a/scripts/build/companion_libs/121-isl.sh
+++ b/scripts/build/companion_libs/121-isl.sh
@@ -12,9 +12,8 @@ if [ "${CT_ISL}" = "y" ]; then
 
 # Download ISL
 do_isl_get() {
-    CT_GetFile "isl-${CT_ISL_VERSION}"  \
-        ftp://ftp.linux.student.kuleuven.be/pub/people/skimo/isl/ \
-        http://mirrors.kernel.org/sources.redhat.com/gcc/infrastructure
+    CT_GetFile "isl-${CT_ISL_VERSION}" \
+        http://isl.gforge.inria.fr
 }
 
 # Extract ISL
diff --git a/scripts/build/companion_libs/130-cloog.sh b/scripts/build/companion_libs/130-cloog.sh
index fe5ba13..1a3b91a 100644
--- a/scripts/build/companion_libs/130-cloog.sh
+++ b/scripts/build/companion_libs/130-cloog.sh
@@ -24,8 +24,7 @@ if [ "${CT_CLOOG}" = "y" ]; then
 # Download CLooG
 do_cloog_get() {
     CT_GetFile "$(cloog_basename_version)"          \
-        http://www.bastoul.net/cloog/pages/download \
-        ftp://gcc.gnu.org/pub/gcc/infrastructure
+        http://www.bastoul.net/cloog/pages/download
 }
 
 # Extract CLooG
diff --git a/scripts/build/companion_libs/140-mpc.sh b/scripts/build/companion_libs/140-mpc.sh
index 9ceb7e5..03071d3 100644
--- a/scripts/build/companion_libs/140-mpc.sh
+++ b/scripts/build/companion_libs/140-mpc.sh
@@ -13,7 +13,7 @@ if [ "${CT_MPC}" = "y" ]; then
 # Download MPC
 do_mpc_get() {
     CT_GetFile "mpc-${CT_MPC_VERSION}" .tar.gz      \
-        http://www.multiprecision.org/mpc/download
+        {http,ftp,https}://ftp.gnu.org/gnu/mpc
 }
 
 # Extract MPC