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CompilerSupport: Warn when deploying to older Apple platforms from Xcode 15

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reuk 2023-10-11 18:33:58 +01:00
parent 88917488fd
commit ad6b82d2e7
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2 changed files with 33 additions and 24 deletions
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33
modules/juce_core/system/juce_CompilerSupport.h
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@ -63,6 +63,39 @@
#endif
#endif
#if ! defined (JUCE_SILENCE_XCODE_15_LINKER_WARNING) \
&& defined (__apple_build_version__) \
&& __clang_major__ == 15 \
&& __clang_minor__ == 0
// This is a warning because builds may be usable when LTO is disabled
#pragma GCC warning "If you are using Link Time Optimisation (LTO), the " \
"new linker introduced in Xcode 15 may produce a broken binary.\n" \
"As a workaround, add either '-Wl,-weak_reference_mismatches,weak' or " \
"'-Wl,-ld_classic' to your linker flags.\n" \
"Once you've selected a workaround, you can add " \
"JUCE_SILENCE_XCODE_15_LINKER_WARNING to your preprocessor definitions " \
"to silence this warning."
#if ((defined (MAC_OS_X_VERSION_MIN_REQUIRED) \
&& MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_VERSION_13_0) \
|| (defined (__IPHONE_OS_VERSION_MIN_REQUIRED) \
&& __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_15_0))
// This is an error because the linker _will_ produce a binary that is
// broken on older platforms
static_assert (std::string_view (__clang_version__)
!= std::string_view ("15.0.0 (clang-1500.0.40.1)"),
"The new linker introduced in Xcode 15.0 will produce "
"broken binaries when targeting older platforms.\n"
"To work around this issue, bump your deployment target to "
"macOS 13 or iOS 15, re-enable the old linker by adding "
"'-Wl,-ld_classic' to your link flags, or update to Xcode "
"15.1.\n"
"Once you've selected a workaround, you can add "
"JUCE_SILENCE_XCODE_15_LINKER_WARNING to your preprocessor "
"definitions to silence this warning.");
#endif
#endif
#define JUCE_CXX14_IS_AVAILABLE (__cplusplus >= 201402L)
#define JUCE_CXX17_IS_AVAILABLE (__cplusplus >= 201703L)