On Wed, Apr 13, 2016 at 9:06 AM, Jose Fonseca <[email protected]> wrote: > On 13/04/16 13:48, Jose Fonseca wrote: >> >> On 13/04/16 11:43, Ilia Mirkin wrote: >>> >>> Hi Tim, >>> >>> It seems like building swr forces c++11 mode for the whole build, even >>> other drivers being built that aren't necessarily ready for it. >>> Unfortunately c++11 isn't backwards compatible with c++03, so the switch >>> can't be made unilaterally. Could you have a look at why this is >>> happening? >>> >>> An example of something that does this properly is clover, which also >>> requires c++11 to be built. >>> >>> Thanks, >>> >>> -ilia >>> >> >> Ilia, >> >> Even before SWR was merged and today's isinf fix was commited, >> nv50_ir_ra.cpp already has code to make it portable for C++11 (see below). >> >> I honestly don't understand what you're trying to achieve with this >> thread... >> >> Are you seriously plan to require C++03 to build nouveau? It would be >> insane try to do that once GCC 6 is widely available. >> >> Rather than see you swimming upstream, I much rather see you helping me >> helping you to keep nouveau C++11 portable... >> >> Jose >> > > FYI, llvm also forces -std=c++11: > > $ llvm-config --cxxflags > -I/usr/lib/llvm-3.6/include -DNDEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS > -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -g -O2 -fomit-frame-pointer > -std=c++11 -fvisibility-inlines-hidden -fno-exceptions -fPIC > -ffunction-sections -fdata-sections -Wcast-qual > > and AFAICS configure.ac does not strip it.
$ llvm-config --cxxflags -I/usr/include -std=c++11 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS A random (c++) file I picked from a make V=1 compilation: libtool: compile: g++ -DPACKAGE_NAME=\"Mesa\" -DPACKAGE_TARNAME=\"mesa\" -DPACKAGE_VERSION=\"11.3.0-devel\" "-DPACKAGE_STRING=\"Mesa 11.3.0-devel\"" "-DPACKAGE_BUGREPORT=\"https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa\""; -DPACKAGE_URL=\"\" -DPACKAGE=\"mesa\" -DVERSION=\"11.3.0-devel\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DYYTEXT_POINTER=1 -DHAVE___BUILTIN_BSWAP32=1 -DHAVE___BUILTIN_BSWAP64=1 -DHAVE___BUILTIN_CLZ=1 -DHAVE___BUILTIN_CLZLL=1 -DHAVE___BUILTIN_CTZ=1 -DHAVE___BUILTIN_EXPECT=1 -DHAVE___BUILTIN_FFS=1 -DHAVE___BUILTIN_FFSLL=1 -DHAVE___BUILTIN_POPCOUNT=1 -DHAVE___BUILTIN_POPCOUNTLL=1 -DHAVE___BUILTIN_UNREACHABLE=1 -DHAVE_FUNC_ATTRIBUTE_CONST=1 -DHAVE_FUNC_ATTRIBUTE_FLATTEN=1 -DHAVE_FUNC_ATTRIBUTE_FORMAT=1 -DHAVE_FUNC_ATTRIBUTE_MALLOC=1 -DHAVE_FUNC_ATTRIBUTE_PACKED=1 -DHAVE_FUNC_ATTRIBUTE_PURE=1 -DHAVE_FUNC_ATTRIBUTE_UNUSED=1 -DHAVE_FUNC_ATTRIBUTE_WARN_UNUSED_RESULT=1 -DHAVE_DLADDR=1 -DHAVE_CLOCK_GETTIME=1 -DHAVE_PTHREAD=1 -DHAVE_SHA1_IN_LIBNETTLE=1 -I. -I./include -I../../../../src -I../../../../include -I../../../../src/gallium/include -I../../../../src/gallium/auxiliary -I../../../../src/gallium/drivers -I../../../../src/gallium/winsys -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D_GNU_SOURCE -DUSE_SSE41 -DDEBUG -DTEXTURE_FLOAT_ENABLED -DUSE_X86_64_ASM -DHAVE_XLOCALE_H -DHAVE_SYS_SYSCTL_H -DHAVE_STRTOF -DHAVE_MKOSTEMP -DHAVE_DLOPEN -DHAVE_POSIX_MEMALIGN -DHAVE_LIBDRM -DHAVE_SHA1 -DGLX_USE_DRM -DHAVE_LIBUDEV -DGLX_INDIRECT_RENDERING -DGLX_DIRECT_RENDERING -DHAVE_ALIAS -DHAVE_DRI3 -DHAVE_MINCORE -DHAVE_ST_VDPAU -DHAVE_LLVM=0x0307 -DMESA_LLVM_VERSION_PATCH=1 -fvisibility=hidden -I/usr/include/libdrm -I/usr/include/libdrm -I/usr/include/libdrm/nouveau -I/usr/include/libdrm -march=corei7 -O0 -Wall -fno-strict-aliasing -fno-builtin-memcmp -g -MT codegen/nv50_ir_emit_gk110.lo -MD -MP -MF codegen/.deps/nv50_ir_emit_gk110.Tpo -c codegen/nv50_ir_emit_gk110.cpp -fPIC -DPIC -o codegen/.libs/nv50_ir_emit_gk110.o Doesn't seem to have -std=c++11 there. -ilia _______________________________________________ mesa-dev mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-dev
