macos - 在 OS X Yosemite 上构建 GCC-4.9.2

Question

好的，我在 Apple 的新 OS X Yosemite 上构建 gcc-4.9.2 时遇到了问题。我不确定是否需要在 OS X 上构建 gnu-gcc 编译器，因为除了 tesseract-3.0.1 和我自己的一些 wxWidgets 应用程序之外，大多数其他软件都编译得很好。是否有某些程序/代码功能是 clang 无法编译的？

我的构建步骤如下:

cd build-gcc
../gcc-4.9.1/configure --program-prefix="gnu-" --prefix="/usr/local/gcc-4.9.1" --with-gmp="/usr/local" --with-mpfr="/usr/local" --with-mpc="/usr/local" CC=clang CXX=clang++
make

我的构建路径和 gcc 源路径不包含任何空格，并且我在 /usr/local 中安装了 GMP、MPFR 和 MPC。 .

我的构建输出是:

 clang++   -g  -DIN_GCC    -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common  -DHAVE_CONFIG_H -Wl,-no_pie  -o cc1 c/c-lang.o c-family/stub-objc.o attribs.o c/c-errors.o c/c-decl.o c/c-typeck.o c/c-convert.o c/c-aux-info.o c/c-objc-common.o c/c-parser.o c/c-array-notation.o c-family/c-common.o c-family/c-cppbuiltin.o c-family/c-dump.o c-family/c-format.o c-family/c-gimplify.o c-family/c-lex.o c-family/c-omp.o c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o c-family/c-cilkplus.o c-family/array-notation-common.o c-family/cilk.o c-family/c-ubsan.o i386-c.o darwin-c.o \
  cc1-checksum.o libbackend.a main.o tree-browser.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a ./../intl/libintl.a -liconv  ../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a   -L/usr/local/lib -L/usr/local/lib -L/usr/local/lib -lmpc -lmpfr -lgmp   -L../zlib -lz
ld: warning: ld: warning: ld: warning: ignoring file libbackend.a, file was built for archive which is not the architecture being linked (x86_64): libbackend.aignoring file libcommon-target.a, file was built for archive which is not the architecture being linked (x86_64): libcommon-target.aignoring file ../libdecnumber/libdecnumber.a, file was built for archive which is not the architecture being linked (x86_64): ../libdecnumber/libdecnumber.a


ld: warning: ignoring file ../zlib/libz.a, file was built for archive which is not the architecture being linked (x86_64): ../zlib/libz.a
Undefined symbols for architecture x86_64:
... (Lots of symbols)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [cc1] Error 1
make[2]: *** [all-stage1-gcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2

配置输出构建类型为: x86_64-apple-darwin14.0.0 ，所以我不明白为什么会发生这种情况。

预先感谢您的任何帮助。

Answer 1

原来是我坏了ranlib在 /usr/local/bin - 也许 GNU Binutils 不能在 OS X 上运行？我需要做的就是解决这个问题:

sudo mv /usr/local/bin/ranlib /usr/local/ranlib_old

然后 make ，现在我有一个可用的 GCC!