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tests: Apple clang issues warning on C++11 features

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$ cat /tmp/foo.cc
using foo = int;
foo f;
$ clang++ -Wc++11-extensions -c /tmp/foo.cc
/tmp/foo.cc:1:13: warning: alias declarations are a C++11 extension [-Wc++11-extensions]
using foo = int;
            ^
1 warning generated.
$ clang++ --version
Apple clang version 11.0.0 (clang-1100.0.33.17)
Target: x86_64-apple-darwin18.7.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

* tests/local.at (AT_COMPILE_CXX): Make sure -std=c++11 is passed when
running glr2.cc.  It may be overridden by another flag in CXXFLAGS
afterwards.
This commit is contained in:
Akim Demaille
2021-09-25 08:46:33 +02:00
parent 028df02a9f
commit 80ebbe7330
2 changed files with 11 additions and 1 deletions
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4
tests/headers.at
View File

@@ -386,7 +386,11 @@ AT_PERL_CHECK([[-n -0777 -e '
# Do this late, so that other checks have been performed. # Do this late, so that other checks have been performed.
AT_SKIP_IF_CANNOT_LINK_C_AND_CXX AT_SKIP_IF_CANNOT_LINK_C_AND_CXX
# The header generated by glr2.cc requires C++11. Push the options to
# prepare AT_COMPILE_CXX.
AT_BISON_OPTION_PUSHDEFS([%skeleton "glr2.cc"])
AT_COMPILE_CXX([parser], [[x[1-9a-d].o -DCC_IS_CXX=$CC_IS_CXX main.cc]]) AT_COMPILE_CXX([parser], [[x[1-9a-d].o -DCC_IS_CXX=$CC_IS_CXX main.cc]])
AT_BISON_OPTION_POPDEFS
AT_PARSER_CHECK([parser], [0], [[expout]]) AT_PARSER_CHECK([parser], [0], [[expout]])
m4_popdef([AT_TEST]) m4_popdef([AT_TEST])

8
tests/local.at
View File

@@ -1358,13 +1358,19 @@ AT_CHECK(m4_join([ ],
# If OUTPUT does not contain '.', assume that we are linking too, # If OUTPUT does not contain '.', assume that we are linking too,
# otherwise pass "-c"; this is a hack. The default SOURCES is OUTPUT # otherwise pass "-c"; this is a hack. The default SOURCES is OUTPUT
# with trailing ".o" removed, and ".cc" appended. # with trailing ".o" removed, and ".cc" appended.
#
# glr2.cc require C++11.
m4_define([AT_COMPILE_CXX], m4_define([AT_COMPILE_CXX],
[AT_KEYWORDS([c++]) [AT_KEYWORDS([c++])
AT_SKIP_IF([[! $BISON_CXX_WORKS]]) AT_SKIP_IF([[! $BISON_CXX_WORKS]])
m4_ifdef([AT_GLR2_CC_IF], m4_ifdef([AT_GLR2_CC_IF],
[AT_GLR2_CC_IF([AT_SKIP_IF([[test x"$CXX11_CXXFLAGS" == x]])])]) [AT_GLR2_CC_IF([AT_SKIP_IF([[test x"$CXX11_CXXFLAGS" == x]])])])
AT_CHECK(m4_join([ ], AT_CHECK(m4_join([ ],
[$CXX $CXXFLAGS $CPPFLAGS $3], [$CXX],
[$CPPFLAGS],
[m4_ifdef([AT_GLR2_CC_IF], [AT_GLR2_CC_IF([$CXX11_CXXFLAGS])])],
[$CXXFLAGS],
[$3],
[m4_bmatch([$1], [[.]], [-c], [$LDFLAGS])], [m4_bmatch([$1], [[.]], [-c], [$LDFLAGS])],
[-o $1], [-o $1],
[m4_default([$2], [m4_bpatsubst([$1], [\.o$]).cc])], [m4_default([$2], [m4_bpatsubst([$1], [\.o$]).cc])],