ICU 76 appears to be incompatible

[rmottola]

upgrade from ICU 74 to 76 makes system library ICU not build on Mac

[barracuda156]

Could you please add the log, for the reference? (The issue is relevant for MacPorts builds, unless we want to have a separate legacy ICU just for this.)

[rmottola]

@barracuda156 I discovered indeed while working on my Mac and importing patches, 74->76 . Didn't test yet elsewhere, holiday period and concentrated on some bugs, including Linux apparent regression. Will do!
Is there an ArcticFox build for MacPorts or is it a general MacPorts interest?

[rmottola]

here it is, @barracuda156

1:02.83 In file included from /opt/local/include/unicode/utypes.h:39:
 1:02.83 Warning: -Wc++17-extensions in /opt/local/include/unicode/uversion.h: nested namespace definition is a C++17 extension; define each namespace separately
 1:02.83 /opt/local/include/unicode/uversion.h:167:11: warning: nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]
 1:02.83 namespace U_HEADER_ONLY_NAMESPACE {}
 1:02.83           ^
 1:02.83 /opt/local/include/unicode/uversion.h:165:48: note: expanded from macro 'U_HEADER_ONLY_NAMESPACE'
 1:02.83 #define U_HEADER_ONLY_NAMESPACE U_ICU_NAMESPACE::U_HEADER_NESTED_NAMESPACE
 1:02.83                                                ^
 1:02.83 In file included from /Users/multix/code/Arctic-Fox/obj-x86_64-apple-darwin19.6.0/layout/forms/Unified_cpp_layout_forms0.cpp:128:
 1:02.83 In file included from /Users/multix/code/Arctic-Fox/layout/forms/nsNumberControlFrame.cpp:9:
 1:02.83 In file included from /Users/multix/code/Arctic-Fox/obj-x86_64-apple-darwin19.6.0/dist/include/ICUUtils.h:18:
 1:02.83 In file included from /opt/local/include/unicode/unum.h:21:
 1:02.83 In file included from /opt/local/include/unicode/uloc.h:27:
 1:02.83 In file included from /opt/local/include/unicode/uenum.h:25:
 1:02.83 /opt/local/include/unicode/localpointer.h:561:26: error: 'auto' not allowed in template parameter until C++17
 1:02.83 template <typename Type, auto closeFunction>
 1:02.83                          ^~~~
 1:02.83 In file included from /Users/multix/code/Arctic-Fox/obj-x86_64-apple-darwin19.6.0/layout/forms/Unified_cpp_layout_forms0.cpp:128:
 1:02.83 In file included from /Users/multix/code/Arctic-Fox/layout/forms/nsNumberControlFrame.cpp:9:
 1:02.83 In file included from /Users/multix/code/Arctic-Fox/obj-x86_64-apple-darwin19.6.0/dist/include/ICUUtils.h:18:
 1:02.83 In file included from /opt/local/include/unicode/unum.h:21:
 1:02.83 In file included from /opt/local/include/unicode/uloc.h:27:
 1:02.83 /opt/local/include/unicode/uenum.h:69:69: error: value of type 'void (UEnumeration *)' is not implicitly convertible to 'int'
 1:02.83 U_DEFINE_LOCAL_OPEN_POINTER(LocalUEnumerationPointer, UEnumeration, uenum_close);
 1:02.84                                                                     ^~~~~~~~~~~
 1:02.84 /opt/local/include/unicode/urename.h:948:21: note: expanded from macro 'uenum_close'
 1:02.84 #define uenum_close U_ICU_ENTRY_POINT_RENAME(uenum_close)
 1:02.84                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1:02.84 /opt/local/include/unicode/uvernum.h:123:47: note: expanded from macro 'U_ICU_ENTRY_POINT_RENAME'
 1:02.84 #       define U_ICU_ENTRY_POINT_RENAME(x)    U_DEF2_ICU_ENTRY_POINT_RENAME(x,U_ICU_VERSION_SUFFIX)
 1:02.84                                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1:02.84 /opt/local/include/unicode/uvernum.h:122:51: note: expanded from macro 'U_DEF2_ICU_ENTRY_POINT_RENAME'
 1:02.84 #       define U_DEF2_ICU_ENTRY_POINT_RENAME(x,y) U_DEF_ICU_ENTRY_POINT_RENAME(x,y)
 1:02.84                                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1:02.84 /opt/local/include/unicode/uvernum.h:121:50: note: expanded from macro 'U_DEF_ICU_ENTRY_POINT_RENAME'
 1:02.84 #       define U_DEF_ICU_ENTRY_POINT_RENAME(x,y) x ## y
 1:02.84                                                  ^~~~~~

icu76-AF.log