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hebastohebasto
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build: Add gcc specific -Werror=unused-const-variable=1 compile flag
Added flag is disabled by default for C++. No new warnings fire when compiling.
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‎configure.ac‎

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@@ -416,6 +416,7 @@ if test "x$enable_werror" = "xyes"; then
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AX_CHECK_COMPILE_FLAG([-Werror=thread-safety],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=thread-safety"],,[[$CXXFLAG_WERROR]])
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AX_CHECK_COMPILE_FLAG([-Werror=range-loop-analysis],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=range-loop-analysis"],,[[$CXXFLAG_WERROR]])
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AX_CHECK_COMPILE_FLAG([-Werror=unused], [ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=unused"], [], [$CXXFLAG_WERROR])
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AX_CHECK_COMPILE_FLAG([-Werror=unused-const-variable=1], [ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=unused-const-variable=1"], [], [$CXXFLAG_WERROR])
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AX_CHECK_COMPILE_FLAG([-Werror=unused-exception-parameter], [ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=unused-exception-parameter"], [], [$CXXFLAG_WERROR])
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AX_CHECK_COMPILE_FLAG([-Werror=unused-member-function], [ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=unused-member-function"], [], [$CXXFLAG_WERROR])
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AX_CHECK_COMPILE_FLAG([-Werror=date-time],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=date-time"],,[[$CXXFLAG_WERROR]])
@@ -448,6 +449,7 @@ if test "x$CXXFLAGS_overridden" = "xno"; then
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AX_CHECK_COMPILE_FLAG([-Wrange-loop-analysis],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wrange-loop-analysis"],,[[$CXXFLAG_WERROR]])
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AX_CHECK_COMPILE_FLAG([-Wredundant-decls],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wredundant-decls"],,[[$CXXFLAG_WERROR]])
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AX_CHECK_COMPILE_FLAG([-Wunused], [WARN_CXXFLAGS="$WARN_CXXFLAGS -Wunused"], [], [$CXXFLAG_WERROR])
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AX_CHECK_COMPILE_FLAG([-Wunused-const-variable=1], [WARN_CXXFLAGS="$WARN_CXXFLAGS -Wunused-const-variable=1"], [], [$CXXFLAG_WERROR])
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AX_CHECK_COMPILE_FLAG([-Wunused-exception-parameter], [WARN_CXXFLAGS="$WARN_CXXFLAGS -Wunused-exception-parameter"], [], [$CXXFLAG_WERROR])
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AX_CHECK_COMPILE_FLAG([-Wunused-member-function], [WARN_CXXFLAGS="$WARN_CXXFLAGS -Wunused-member-function"], [], [$CXXFLAG_WERROR])
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AX_CHECK_COMPILE_FLAG([-Wdate-time],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wdate-time"],,[[$CXXFLAG_WERROR]])

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