From 1fff5d3ca257d02d8ea1dbcfdc7f07e559cf9086 Mon Sep 17 00:00:00 2001
From: Matthias Krack <matthias.krack@psi.ch>
Date: Thu, 28 Mar 2024 01:26:11 +0100
Subject: [PATCH] Add libsz only if available

---
 tools/toolchain/scripts/stage7/install_hdf5.sh | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/toolchain/scripts/stage7/install_hdf5.sh b/tools/toolchain/scripts/stage7/install_hdf5.sh
index 6845a9a83c..c850e8cc7d 100755
--- a/tools/toolchain/scripts/stage7/install_hdf5.sh
+++ b/tools/toolchain/scripts/stage7/install_hdf5.sh
@@ -75,9 +75,12 @@ esac
 if [ "${with_hdf5}" != "__DONTUSE__" ]; then
   # Prefer static libraries if available
   if [ -f "${pkg_install_dir}/lib/libhdf5.a" ]; then
-    HDF5_LIBS="-l:libhdf5_fortran.a -l:libhdf5_f90cstub.a -l:libhdf5.a -lsz -lz"
+    HDF5_LIBS="-l:libhdf5_fortran.a -l:libhdf5_f90cstub.a -l:libhdf5.a -lz"
   else
-    HDF5_LIBS="-lhdf5_fortran -lhdf5_f90cstub -lhdf5 -lsz -lz"
+    HDF5_LIBS="-lhdf5_fortran -lhdf5_f90cstub -lhdf5 -lz"
+  fi
+  if [ -n "$(grep libsz ${pkg_install_dir}/lib/pkgconfig/hdf5.pc)" ]; then
+    HDF5_LIBS="${HDF5_LIBS} -lsz"
   fi
   if [ "${with_hdf5}" != "__SYSTEM__" ]; then
     cat << EOF > "${BUILDDIR}/setup_hdf5"