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configure: quit on trying to get ICC and Flex be friends

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The CI is using Flex 2.5.35.  And ICC is too picky for it.  Let's stop
making these warnings errors.  I wish I could disable them in the
source files using the ICC version and the Flex version, but ICC's
pragma support is unclear, and I'm tired of fighting it.

* configure.ac (FLEX_SCANNER_CXXFLAGS): Make warnings warnings.
* examples/c++/local.mk: Comment changes.
This commit is contained in:
Akim Demaille
2018-10-24 20:45:18 +02:00
parent 73a822e636
commit 849d91bc02
2 changed files with 5 additions and 7 deletions
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10
configure.ac
View File

@@ -162,15 +162,11 @@ if test "$enable_gcc_warnings" = yes; then
do do
gl_WARN_ADD([$i], [WARN_CXXFLAGS_TEST]) gl_WARN_ADD([$i], [WARN_CXXFLAGS_TEST])
done done
# Clang++ 3.2+ rejects C code generated by Flex. # Too many compilers complain about Flex generated code.
gl_WARN_ADD([-Wno-null-conversion], [FLEX_SCANNER_CXXFLAGS]) gl_WARN_ADD([-Wno-error], [FLEX_SCANNER_CXXFLAGS])
# So does G++ 4.8...
gl_WARN_ADD([-Wno-sign-compare], [FLEX_SCANNER_CXXFLAGS])
# ... possibly in std=c++11 mode.
gl_WARN_ADD([-Wno-zero-as-null-pointer-constant], [FLEX_SCANNER_CXXFLAGS])
CXXFLAGS=$save_CXXFLAGS
# Clang++ deprecates compiling C. # Clang++ deprecates compiling C.
gl_WARN_ADD([-Wno-deprecated], [WNO_DEPRECATED_CXXFLAGS]) gl_WARN_ADD([-Wno-deprecated], [WNO_DEPRECATED_CXXFLAGS])
CXXFLAGS=$save_CXXFLAGS
AC_LANG_POP([C++]) AC_LANG_POP([C++])
fi fi

2
examples/c++/local.mk
View File

@@ -46,6 +46,7 @@ endif
check_PROGRAMS += %D%/variant check_PROGRAMS += %D%/variant
nodist_%C%_variant_SOURCES = %D%/variant.yy nodist_%C%_variant_SOURCES = %D%/variant.yy
# Don't use gnulib's system headers.
%C%_variant_CPPFLAGS = -I$(top_builddir) %C%_variant_CPPFLAGS = -I$(top_builddir)
dist_TESTS += %D%/variant.test dist_TESTS += %D%/variant.test
%D%/variant.cc: $(BISON_IN) $(dist_pkgdata_DATA) %D%/variant.cc: $(BISON_IN) $(dist_pkgdata_DATA)
@@ -54,6 +55,7 @@ if ENABLE_CXX11
check_PROGRAMS += %D%/variant-11 check_PROGRAMS += %D%/variant-11
nodist_%C%_variant_11_SOURCES = %D%/variant-11.yy nodist_%C%_variant_11_SOURCES = %D%/variant-11.yy
%C%_variant_11_CXXFLAGS = $(CXX11_CXXFLAGS) %C%_variant_11_CXXFLAGS = $(CXX11_CXXFLAGS)
# Don't use gnulib's system headers.
%C%_variant_11_CPPFLAGS = -I$(top_builddir) %C%_variant_11_CPPFLAGS = -I$(top_builddir)
dist_TESTS += %D%/variant-11.test dist_TESTS += %D%/variant-11.test
%D%/variant-11.cc: $(BISON_IN) $(dist_pkgdata_DATA) %D%/variant-11.cc: $(BISON_IN) $(dist_pkgdata_DATA)