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[libc++] Don't try to be compatible with libstdc++ in __libcpp_refstring on iOS (#170816)

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iOS doesn't provide a libstdc++ dylib anymore, so we can remove the
compatiblity check whether we can load the dylib.
This commit is contained in:
Nikolas Klauser
2025-12-09 16:37:32 +01:00
committed by GitHub
parent 51d928f0cf
commit b2ddb909cf
1 changed files with 2 additions and 2 deletions
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4
libcxx/src/include/refstring.h
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@@ -15,7 +15,7 @@
#include <cstring>
#include <stdexcept>
// MacOS and iOS used to ship with libstdc++, and still support old applications
// MacOS used to ship with libstdc++, and still support old applications
// linking against libstdc++. The libc++ and libstdc++ exceptions are supposed
// to be ABI compatible, such that they can be thrown from one library and caught
// in the other.
@@ -25,7 +25,7 @@
// string singleton before manipulating the reference count. This is done so that
// if an exception is created with a zero-length string in libstdc++, libc++abi
// won't try to delete the memory.
#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) || defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__)
#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
# define _LIBCPP_CHECK_FOR_GCC_EMPTY_STRING_STORAGE
# include <dlfcn.h>
# include <mach-o/dyld.h>