[MacPorts] #67963: xxhashlib 0.8.2: Build failure on 10.7 Lion with Xcode clang

[MacPorts]

#67963: xxhashlib 0.8.2: Build failure on 10.7 Lion with Xcode clang
-------------------------+-----------------------
 Reporter:  thestr4ng3r  |      Owner:  (none)
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.8.1
 Keywords:               |       Port:  xxhashlib
-------------------------+-----------------------
 The build currently fails due to a crash of the Xcode-supplied clang:

 {{{
 0  clang 0x0000000100c57bb2 main + 12932498
 Stack dump:
 0.      Program arguments: /usr/bin/clang -cc1 -triple x86_64-apple-
 macosx10.7.0 -emit-obj -disable-free -disable-llvm-verifier -main-file-
 name xxhash.c -pic-level 2 -mdisable-fp-elim -masm-verbose -munwind-tables
 -target-cpu core2 -target-linker-version 136 -coverage-file
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_devel_xxhash/xxhashlib/work/xxhash-0.8.2/xxhash.o
 -resource-dir /usr/bin/../lib/clang/4.2 -I /opt/local/include -fmodule-
 cache-path
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_devel_xxhash/xxhashlib/work/.tmp
 /clang-module-cache -I/opt/local/include -Os -Wall -Wextra -Wconversion
 -Wcast-qual -Wcast-align -Wshadow -Wstrict-aliasing=1 -Wswitch-enum
 -Wdeclaration-after-statement -Wstrict-prototypes -Wundef -Wpointer-arith
 -Wformat-security -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-
 strings -Wredundant-decls -Wstrict-overflow=2 -fconst-strings -fdebug-
 compilation-dir
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_devel_xxhash/xxhashlib/work/xxhash-0.8.2
 -ferror-limit 19 -fmessage-length 0 -stack-protector 1 -mstackrealign
 -fblocks -fobjc-runtime=macosx-10.7.0 -fobjc-dispatch-method=mixed -fobjc-
 default-synthesize-properties -fdiagnostics-show-option -o xxhash.o -x c
 xxhash.c
 1.      ./xxhash.h:3429:4: current parser token 'if'
 2.      ./xxhash.h:3371:1: parsing function body 'XXH64_hashFromCanonical'
 3.      ./xxhash.h:3371:1: in compound statement ('{}')
 }}}

 I experienced this locally and it can also be seen in
 https://build.macports.org/builders/ports-10.7_x86_64-builder/builds/155535
 (stdout also attached for preservation)

 A workaround is to use a different compiler:
 {{{
 sudo port install xxhashlib configure.compiler=macports-clang-11
 }}}
 Maybe this should be done in the Portfile only for Lion?

-- 
Ticket URL: <https://trac.macports.org/ticket/67963>
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