cc1: error: unrecognized command line option "-Wno-overlength-strings"

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1

Hi,

I am trying to build llvm-gcc from svn and I am getting a “cc1: error: unrecognized command line option “-Wno-overlength-strings”” error. I have gcc 4.1.2 and Linux 2.6.18 on 64bit. Please tell me how to fix this error.

Here is the command that caused this:

gcc -c -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Wold-style-definition -Wmissing-format-attribute -DHAVE_CONFIG_H -I. -I. -I…/…/dst-directory/gcc -I…/…/dst-directory/gcc/. -I…/…/dst-directory/gcc/…/include -I…/…/dst-directory/gcc/…/libcpp/include -I…/…/dst-directory/gcc/…/libdecnumber -I…/libdecnumber -I/home/asin/llvm_latest/include -I/rhel5pdi/home/asin/llvm/include -DENABLE_LLVM -I/home/asin/llvm_latest/…/llvm/include -I/home/asin/llvm_latest/include -D_DEBUG -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS cc1-checksum.c -o cc1-checksum.o

Thanks,
Arjun

2

I am trying to build llvm-gcc from svn and I am getting a “cc1: error: unrecognized command line option “-Wno-overlength-strings”” error. I have gcc 4.1.2 and Linux 2.6.18 on 64bit. Please tell me how to fix this error.

llvm-gcc is kind of end-of-life these days (ie: you should probably be using clang or dragonegg instead) but it looks like you’re probably just using an old version of gcc. While I haven’t tried to repro your issue on gcc 4.1, it doesn’t seem to appear on 4.5[.2] (so I guess it was just a new warning that’s been added, and suppressed in the llvm-gcc build, since 4.1)

3

Thank you for replying. I will try to switch to clang.