[slang-users] git head build failure on Mac OS X

[Christian Ebert <blacktrash@xxxxxxx>]

Hi,

The latest change - _XOPEN_SOURCE 500 - breaks clang compilation
on Mac OS X:

cd /Users/chris/src/slang/src/elfobjs && gcc -c -g -O2  -fno-common  -Dunix -DSLANG  /Users/chris/src/slang/src/slproc.c
/Users/chris/src/slang/src/slproc.c:258:4: error: no member named 'ru_maxrss' in 'rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_maxrss, "ru_maxrss", 0),
   ^                                    ~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2343:47: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
#define MAKE_CSTRUCT_INT_FIELD(s,f,n,r) {(n), offsetof(s,f),\
                                              ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.1.0/include/stddef.h:133:24: note:
      expanded from macro 'offsetof'
#define offsetof(t, d) __builtin_offsetof(t, d)
                       ^
/Users/chris/src/slang/src/slproc.c:258:42: error: no member named 'ru_maxrss' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_maxrss, "ru_maxrss", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2344:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(int))?(SLANG_INT_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:258:42: error: no member named 'ru_maxrss' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_maxrss, "ru_maxrss", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2345:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(short))?(SLANG_SHORT_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:258:42: error: no member named 'ru_maxrss' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_maxrss, "ru_maxrss", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2346:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(char))?(SLANG_CHAR_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:258:42: error: no member named 'ru_maxrss' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_maxrss, "ru_maxrss", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2347:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(long))?(SLANG_LONG_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:259:4: error: no member named 'ru_minflt' in 'rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_minflt, "ru_minflt", 0),
   ^                                    ~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2343:47: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
#define MAKE_CSTRUCT_INT_FIELD(s,f,n,r) {(n), offsetof(s,f),\
                                              ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.1.0/include/stddef.h:133:24: note:
      expanded from macro 'offsetof'
#define offsetof(t, d) __builtin_offsetof(t, d)
                       ^
/Users/chris/src/slang/src/slproc.c:259:42: error: no member named 'ru_minflt' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_minflt, "ru_minflt", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2344:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(int))?(SLANG_INT_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:259:42: error: no member named 'ru_minflt' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_minflt, "ru_minflt", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2345:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(short))?(SLANG_SHORT_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:259:42: error: no member named 'ru_minflt' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_minflt, "ru_minflt", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2346:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(char))?(SLANG_CHAR_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:259:42: error: no member named 'ru_minflt' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_minflt, "ru_minflt", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2347:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(long))?(SLANG_LONG_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:260:4: error: no member named 'ru_majflt' in 'rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_majflt, "ru_majflt", 0),
   ^                                    ~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2343:47: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
#define MAKE_CSTRUCT_INT_FIELD(s,f,n,r) {(n), offsetof(s,f),\
                                              ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.1.0/include/stddef.h:133:24: note:
      expanded from macro 'offsetof'
#define offsetof(t, d) __builtin_offsetof(t, d)
                       ^
/Users/chris/src/slang/src/slproc.c:260:42: error: no member named 'ru_majflt' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_majflt, "ru_majflt", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2344:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(int))?(SLANG_INT_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:260:42: error: no member named 'ru_majflt' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_majflt, "ru_majflt", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2345:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(short))?(SLANG_SHORT_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:260:42: error: no member named 'ru_majflt' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_majflt, "ru_majflt", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2346:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(char))?(SLANG_CHAR_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:260:42: error: no member named 'ru_majflt' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_majflt, "ru_majflt", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2347:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(long))?(SLANG_LONG_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:261:4: error: no member named 'ru_inblock' in 'rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_inblock, "ru_inblock", 0),
   ^                                    ~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2343:47: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
#define MAKE_CSTRUCT_INT_FIELD(s,f,n,r) {(n), offsetof(s,f),\
                                              ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.1.0/include/stddef.h:133:24: note:
      expanded from macro 'offsetof'
#define offsetof(t, d) __builtin_offsetof(t, d)
                       ^
/Users/chris/src/slang/src/slproc.c:261:42: error: no member named 'ru_inblock' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_inblock, "ru_inblock", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2344:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(int))?(SLANG_INT_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:261:42: error: no member named 'ru_inblock' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_inblock, "ru_inblock", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2345:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(short))?(SLANG_SHORT_TYPE): \
                     ^
/Users/chris/src/slang/src/slproc.c:261:42: error: no member named 'ru_inblock' in 'struct rusage'
   MAKE_CSTRUCT_INT_FIELD(RUsage_Type, r.ru_inblock, "ru_inblock", 0),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/chris/src/slang/src/slang.h:2346:22: note: expanded from macro 'MAKE_CSTRUCT_INT_FIELD'
   (sizeof(((s*)0L)->f)==sizeof(char))?(SLANG_CHAR_TYPE): \
                     ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
Makefile:598: recipe for target '/Users/chris/src/slang/src/elfobjs/slproc.o' failed
make[1]: *** [/Users/chris/src/slang/src/elfobjs/slproc.o] Error 1
make[1]: Leaving directory '/Users/chris/src/slang/src'
Makefile:58: recipe for target 'elf' failed
make: *** [elf] Error 2

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