When I try to build the latest llvm/clang on Windows with mingw-64/gcc-5.3 I get a slew of errors:
[4/1059] Building C object projects/co...file-i386.dir/InstrProfilingUtil.c.obj
FAILED: C:\Utilities\mingw-w64\i686-5.3.0-posix-dwarf-rt_v4-rev0\mingw32\bin\gcc
.exe -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MA
CROS -Wall -W -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializ
ers -pedantic -Wno-long-long -Wno-comment -Wall -O3 -Iprojects/compiler-rt/lib/
profile -IE:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile -I
include -IE:/Programming/VersionControl/llvm/include -UNDEBUG -m32 -DCOMPILE
R_RT_HAS_ATOMICS=1 -MMD -MT projects/compiler-rt/lib/profile/CMakeFiles/clang_rt
.profile-i386.dir/InstrProfilingUtil.c.obj -MF projects/compiler-rt/lib/profile/
CMakeFiles/clang_rt.profile-i386.dir/InstrProfilingUtil.c.obj.d -o projects/comp
iler-rt/lib/profile/CMakeFiles/clang_rt.profile-i386.dir/InstrProfilingUtil.c.ob
j -c E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/Instr
ProfilingUtil.c
E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/InstrProfili
ngUtil.c:21:25: fatal error: sys/utsname.h: No such file or directory
compilation terminated.
[4/1059] Building C object projects/co..._rt.profile-i386.dir/WindowsMMap.c.obj
FAILED: C:\Utilities\mingw-w64\i686-5.3.0-posix-dwarf-rt_v4-rev0\mingw32\bin\gcc
.exe -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MA
CROS -Wall -W -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializ
ers -pedantic -Wno-long-long -Wno-comment -Wall -O3 -Iprojects/compiler-rt/lib/
profile -IE:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile -I
include -IE:/Programming/VersionControl/llvm/include -UNDEBUG -m32 -DCOMPILE
R_RT_HAS_ATOMICS=1 -MMD -MT projects/compiler-rt/lib/profile/CMakeFiles/clang_rt
.profile-i386.dir/WindowsMMap.c.obj -MF projects/compiler-rt/lib/profile/CMakeFi
les/clang_rt.profile-i386.dir/WindowsMMap.c.obj.d -o projects/compiler-rt/lib/pr
ofile/CMakeFiles/clang_rt.profile-i386.dir/WindowsMMap.c.obj -c E:/Programming
/VersionControl/llvm/projects/compiler-rt/lib/profile/WindowsMMap.c
E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/WindowsMMap.
c: In function 'mmap':
E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/WindowsMMap.
c:42:3: error: unknown type name 'DWORD'
DWORD flProtect;
^
E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/WindowsMMap.
c:45:19: error: 'PAGE_EXECUTE_READWRITE' undeclared (first use in this function)flProtect = PAGE_EXECUTE_READWRITE;
^
E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/WindowsMMap.
c:45:19: note: each undeclared identifier is reported only once for each functio
n it appears in
E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/WindowsMMap.
c:47:19: error: 'PAGE_READWRITE' undeclared (first use in this function)
flProtect = PAGE_READWRITE;
^
E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/WindowsMMap.
c:50:19: error: 'PAGE_EXECUTE_READ' undeclared (first use in this function)
flProtect = PAGE_EXECUTE_READ;
^
E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/WindowsMMap.
c:52:19: error: 'PAGE_EXECUTE' undeclared (first use in this function)
flProtect = PAGE_EXECUTE;
^
E:/Programming/VersionControl/llvm/projects/compiler-rt/lib/profile/WindowsMMap.
c:54:17: error: 'PAGE_READONLY' undeclared (first use in this function)
flProtect = PAGE_READONLY;
etc. etc.
Previous builds of llvm/clang with mingw-64/gcc on Windows worked fine.
Any ideas why this got broken and what is needed to fix it so I can build the latest clang on Windows with gcc ?
I use CMake to configure and generate the build using ninja with gcc as the compiler, and then I use ninja to kick off the build.