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configure: fix parameter expansion of --cross-cc-cflags options

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Without this fix, any use of --cross-cc-cflags-* causes a message like:
$ ../configure --cross-cc-ppc64le=clang --cross-cc-cflags-ppc64le="-target powerpc64le-unknown-linux-gnu -sysroot ..."
../configure: 1: eval: cross_cc_cflags_--cross-cc-cflags-ppc64le=-target: not found
../configure: 3816: export: cross_cc_cflags_--cross-cc-cflags-ppc64le: bad variable name

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20220120173142.2755077-1-matheus.ferst@eldorado.org.br>
[Fix other occurrences too, noted by Philippe Mathieu-Daudé. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Matheus Ferst 2022-01-20 14:31:41 -03:00 committed by Paolo Bonzini
parent a66bd91f03
commit 479ca4ccd5
2 changed files with 3 additions and 3 deletions
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4
configure vendored
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@ -402,7 +402,7 @@ for opt do
;;
--cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
;;
--cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
--cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
eval "cross_cc_cflags_${cc_arch}=\$optarg"
cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
;;
@ -1328,7 +1328,7 @@ Advanced options (experts only):
--extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
--extra-ldflags=LDFLAGS append extra linker flags LDFLAGS
--cross-cc-ARCH=CC use compiler when building ARCH guest test cases
--cross-cc-flags-ARCH= use compiler flags when building ARCH guest tests
--cross-cc-cflags-ARCH= use compiler flags when building ARCH guest tests
--make=MAKE use specified make [$make]
--python=PYTHON use specified python [$python]
--sphinx-build=SPHINX use specified sphinx-build [$sphinx_build]

2
docs/devel/testing.rst
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@ -1324,7 +1324,7 @@ for the architecture in question, for example::
$(configure) --cross-cc-aarch64=aarch64-cc
There is also a ``--cross-cc-flags-ARCH`` flag in case additional
There is also a ``--cross-cc-cflags-ARCH`` flag in case additional
compiler flags are needed to build for a given target.
If you have the ability to run containers as the user the build system