On 6/23/2016 8:08 PM, Rick Kern wrote: > Fixes #4124: Invalid argument '-std=c99' not allowed with 'C++/ObjC++' > C++ files fail to compile. This adds '-std=c++11' to CXX_FLAGS to fix. > > Signed-off-by: Rick Kern <ker...@gmail.com> > --- > common.mak | 2 +- > configure | 1 + > 2 files changed, 2 insertions(+), 1 deletion(-) > > diff --git a/common.mak b/common.mak > index 59b039f..3f2096d 100644 > --- a/common.mak > +++ b/common.mak > @@ -39,7 +39,7 @@ CCFLAGS = $(CPPFLAGS) $(CFLAGS) > OBJCFLAGS += $(EOBJCFLAGS) > OBJCCFLAGS = $(CPPFLAGS) $(CFLAGS) $(OBJCFLAGS) > ASFLAGS := $(CPPFLAGS) $(ASFLAGS) > -CXXFLAGS += $(CPPFLAGS) $(CFLAGS) > +CXXFLAGS := $(CPPFLAGS) $(CFLAGS) $(CXXFLAGS) > YASMFLAGS += $(IFLAGS:%=%/) -Pconfig.asm > > HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS) > diff --git a/configure b/configure > index 94a0a6c..3787894 100755 > --- a/configure > +++ b/configure > @@ -4519,6 +4519,7 @@ fi > > add_cppflags -D_ISOC99_SOURCE > add_cxxflags -D__STDC_CONSTANT_MACROS > +add_cxxflags -std=c++11
Is the c++ code in our tree actually c++11? Or just standard c++98? The -std=c++11 option is relatively recent. Very old compilers may not recognize it. If it is, then you should check if it's supported using check_cxxflags(), then try the same with c++0x (the original value for the standard back when it was planned to be finished in the last decade, and a compatibility alias for c++11 on newer compilers). If neither work then configure should abort. If it's not, then change it to use c++98. > check_cflags -std=c99 > check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64 > #include <stdlib.h> > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
