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Fix for gcc 4.4; nominal support for older. #7419

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Merged
luhenry merged 1 commit into from
Mar 6, 2018
Merged

Fix for gcc 4.4; nominal support for older. #7419

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20 changes: 17 additions & 3 deletions mono/utils/mono-publib.h
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Original file line number Diff line number Diff line change
Expand Up @@ -120,19 +120,33 @@ mono_set_allocator_vtable (MonoAllocatorVTable* vtable);
#endif

#if defined (__clang__) || defined (__GNUC__)
// attribute(deprecated(message)) was introduced in gcc 4.5.
// attribute(deprecated)) was introduced in gcc 4.0.
// Compare: https://gcc.gnu.org/onlinedocs/gcc-3.4.6/gcc/Function-Attributes.html
// https://gcc.gnu.org/onlinedocs/gcc-4.4.0/gcc/Function-Attributes.html
// https://gcc.gnu.org/onlinedocs/gcc-4.5.0/gcc/Function-Attributes.html
#if defined (__clang__) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
#define MONO_RT_EXTERNAL_ONLY \
__attribute__ ((__deprecated__ ("The mono runtime must not call this function."))) \
MONO_RT_CENTRINEL_SUPPRESS
#elif __GNUC__ >= 4
#define MONO_RT_EXTERNAL_ONLY __attribute__ ((__deprecated__)) MONO_RT_CENTRINEL_SUPPRESS
#else
#define MONO_RT_EXTERNAL_ONLY MONO_RT_CENTRINEL_SUPPRESS
#endif

#if defined (__clang__) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2)
// Pragmas for controlling diagnostics appear to be from gcc 4.2.
// This is used in place of configure gcc -Werror=deprecated-declarations:
// 1. To be portable across build systems.
// 2. configure is very sensitive to compiler flags; they break autoconf's probes.
// Though #2 can be mitigted by being late in configure.
#pragma GCC diagnostic error "-Wdeprecated-declarations" // Works with clang too.
// Though #2 can be mitigated by being late in configure.
#pragma GCC diagnostic error "-Wdeprecated-declarations"
#endif

#else
#define MONO_RT_EXTERNAL_ONLY MONO_RT_CENTRINEL_SUPPRESS
#endif /// clang or gcc
#endif // clang or gcc

#else
#define MONO_RT_EXTERNAL_ONLY
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