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build: add Wreturn-type to Werror flags

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This is supported by GCC and Clang.
https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
https://clang.llvm.org/docs/DiagnosticsReference.html#wreturn-type
This commit is contained in:
Sjors Provoost
2020-02-14 10:19:04 +01:00
parent 470664f2b7
commit 6ba617dbe2
1 changed files with 1 additions and 0 deletions
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configure.ac
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@ -330,6 +330,7 @@ if test "x$enable_werror" = "xyes"; then
AX_CHECK_COMPILE_FLAG([-Werror=thread-safety-analysis],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=thread-safety-analysis"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=unused-variable],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=unused-variable"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=date-time],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=date-time"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=return-type],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=return-type"],,[[$CXXFLAG_WERROR]])
fi
if test "x$CXXFLAGS_overridden" = "xno"; then