In /usr/bin/gts-config line 30: exit $1 ^-- SC2086: Double quote to prevent globbing and word splitting. Did you mean: exit "$1" In /usr/bin/gts-config line 35: echo $1 | awk '{ ^-- SC2086: Double quote to prevent globbing and word splitting. Did you mean: echo "$1" | awk '{ In /usr/bin/gts-config line 53: -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;; ^-- SC2006: Use $(...) notation instead of legacy backticked `...`. Did you mean: -*=*) optarg=$(echo "$1" | sed 's/[-_a-zA-Z0-9]*=//') ;; In /usr/bin/gts-config line 88: lib_gts=yes ^-----^ SC2034: lib_gts appears unused. Verify use (or export if used externally). In /usr/bin/gts-config line 104: echo $prefix ^-----^ SC2086: Double quote to prevent globbing and word splitting. Did you mean: echo "$prefix" In /usr/bin/gts-config line 107: echo $exec_prefix ^----------^ SC2086: Double quote to prevent globbing and word splitting. Did you mean: echo "$exec_prefix" In /usr/bin/gts-config line 117: glib_cflags=`uniquify "$glib_cflags"` ^-----------------------^ SC2006: Use $(...) notation instead of legacy backticked `...`. Did you mean: glib_cflags=$(uniquify "$glib_cflags") In /usr/bin/gts-config line 119: echo -DGTS_CHECK_CASTS $glib_cflags ^----------^ SC2086: Double quote to prevent globbing and word splitting. Did you mean: echo -DGTS_CHECK_CASTS "$glib_cflags" In /usr/bin/gts-config line 121: echo $glib_cflags ^----------^ SC2086: Double quote to prevent globbing and word splitting. Did you mean: echo "$glib_cflags" In /usr/bin/gts-config line 132: glib_libs=`uniquify "$glib_libs"` ^---------------------^ SC2006: Use $(...) notation instead of legacy backticked `...`. Did you mean: glib_libs=$(uniquify "$glib_libs") In /usr/bin/gts-config line 133: echo $glib_libs ^--------^ SC2086: Double quote to prevent globbing and word splitting. Did you mean: echo "$glib_libs" For more information: https://www.shellcheck.net/wiki/SC2034 -- lib_gts appears unused. Verify us... https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ... https://www.shellcheck.net/wiki/SC2006 -- Use $(...) notation instead of le...