[ptxdist] [PATCH] ptxd_install_compression_format: handle no debug compression

[ptxdist] [PATCH] ptxd_install_compression_format: handle no debug compression

[Ladislav Michl]

From: Ladislav Michl <ladis@triops.cz>

Some toolchains do not compress debug sections causing later objcopy
failure such as:
aarch64-linux-gnu-objcopy: unrecognized --compress-debug-sections type `'

Signed-off-by: Ladislav Michl <ladis@triops.cz>
---
 scripts/lib/ptxd_make_xpkg_pkg.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/scripts/lib/ptxd_make_xpkg_pkg.sh b/scripts/lib/ptxd_make_xpkg_pkg.sh
index 6cac52e88..ece734450 100644
--- a/scripts/lib/ptxd_make_xpkg_pkg.sh
+++ b/scripts/lib/ptxd_make_xpkg_pkg.sh
@@ -390,7 +390,10 @@ ptxd_install_compression_format() {
 
     libc="$(ptxd_cross_cc -print-file-name=libc.so.6 2> /dev/null)"
     if [ -f "${libc}" ]; then
-	comp="=$($(ptxd_get_ptxconf PTXCONF_COMPILER_PREFIX)readelf -t "${libc}" | sed -n -e '/COMPRESSED/{N;s/.*\(ZLIB\|ZSTD\).*/\1/p;q}' | tr '[:upper:]' '[:lower:]')"
+	comp="$($(ptxd_get_ptxconf PTXCONF_COMPILER_PREFIX)readelf -t "${libc}" | sed -n -e '/COMPRESSED/{N;s/.*\(ZLIB\|ZSTD\).*/\1/p;q}' | tr '[:upper:]' '[:lower:]')"
+	if [ -n "${comp}" ]; then
+	    comp="=${comp}"
+	fi
     fi
     export ptxd_install_file_objcopy_args="--only-keep-debug --compress-debug-sections${comp}"
 }
-- 
2.47.3