C++ 构建 gcc / libstdc++ 时使用了哪些配置选项？
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What configure options were used when building gcc / libstdc++?
提问by OK.
After reading about the problemof passing empty std::stringobjects between DLLs and EXEs, I am concerned about the configure options used to build my gcc / libstdc++. More specific I want to know if --enable-fully-dynamic-stringwas used during ./configure.
在阅读了在 DLL 和 EXE 之间传递空对象的问题后std::string，我担心用于构建我的 gcc / libstdc++ 的配置选项。更具体地说，我想知道--enable-fully-dynamic-string在./configure.
I'm using MinGW 4.4.0 on Windows XP.
我在 Windows XP 上使用 MinGW 4.4.0。
Does anybody know the configuration used to build this release?
Is there a general way to find this information for any installation of GNU gcc? The gcc manual gives me no hint on this topic.
有人知道用于构建此版本的配置吗？
是否有一种通用方法可以为任何 GNU gcc 安装找到此信息？gcc 手册没有给我任何关于这个主题的提示。
Thanks for your input!
感谢您的输入！
回答by Laurynas Biveinis
gcc -vprints out the configuration options among other stuff:
gcc -v打印出配置选项以及其他内容：
$ gcc -v
Using built-in specs.
Target: i686-pc-cygwin
Configured with: /gnu/gcc/releases/packaging/4.3.4-3/gcc4-4.3.4-3/src/gcc-4.3.4/
configure --srcdir=/gnu/gcc/releases/packaging/4.3.4-3/gcc4-4.3.4-3/src/gcc-4.3.
4 --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --libex
ecdir=/usr/lib --datadir=/usr/share --localstatedir=/var --sysconfdir=/etc --inf
odir=/usr/share/info --mandir=/usr/share/man --datadir=/usr/share --infodir=/usr
/share/info --mandir=/usr/share/man -v --with-gmp=/usr --with-mpfr=/usr --enable
-bootstrap --enable-version-specific-runtime-libs --with-slibdir=/usr/bin --libe
xecdir=/usr/lib --enable-static --enable-shared --enable-shared-libgcc --disable
-__cxa_atexit --with-gnu-ld --with-gnu-as --with-dwarf2 --disable-sjlj-exception
s --enable-languages=ada,c,c++,fortran,java,objc,obj-c++ --disable-symvers --ena
ble-libjava --program-suffix=-4 --enable-libgomp --enable-libssp --enable-libada
--enable-threads=posix --with-arch=i686 --with-tune=generic --enable-libgcj-sub
libs CC=gcc-4 CXX=g++-4 CC_FOR_TARGET=gcc-4 CXX_FOR_TARGET=g++-4 GNATMAKE_FOR_TA
RGET=gnatmake GNATBIND_FOR_TARGET=gnatbind AS=/opt/gcc-tools/bin/as.exe AS_FOR_T
ARGET=/opt/gcc-tools/bin/as.exe LD=/opt/gcc-tools/bin/ld.exe LD_FOR_TARGET=/opt/
gcc-tools/bin/ld.exe --with-ecj-jar=/usr/share/java/ecj.jar
Thread model: posix
gcc version 4.3.4 20090804 (release) 1 (GCC)
