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configure: Add braces to clarify intent of $emu[[:space:]]

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In shell script syntax, $var[something] is not special for variable
expansion: $var is expanded.  However, as it can look as if it were
intended to be an array element access (the correct syntax for which
is ${var[something]}), shellcheck recommends using explicit braces
around ${var} to clarify the intended expansion.

This fixes the warning:

In ./configure line 2346:
        if "$target_ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
                                                              ^-- SC1087: Use braces when expanding arrays, e.g. ${array[idx]} (or ${var}[.. to quiet).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20220720152631.450903-3-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2022-07-20 16:26:28 +01:00
parent 35a7a6fc56
commit d466d416ed
1 changed files with 1 additions and 1 deletions
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2
configure vendored
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@ -2343,7 +2343,7 @@ if test -n "$target_cc" &&
# emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
# variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
if "$target_ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
if "$target_ld" -verbose 2>&1 | grep -q "^[[:space:]]*${emu}[[:space:]]*$"; then
ld_i386_emulation="$emu"
break
fi