为什么autoconf不能正确检测boost？

Question

在autoconf-archive macros的支持下，我正在使用autoconf来检测boost库，它们在系统范围的boost库中工作得很好，但如果我在主目录中手动编译boost，则会失败：

sb@stephane:~/devel/spectra2$ ./configure --with-boost=/home/sb/local/
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking for style of include used by make... GNU
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking dependency style of gcc... gcc3
checking for library containing strerror... none required
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking dependency style of g++... gcc3
checking for boostlib >= 1.31.0... yes
checking whether the Boost::Program_Options library is available... yes
checking for exit in -lboost_program_options... yes
checking whether the Boost::Filesystem library is available... yes
checking for exit in -lboost_filesystem... no
checking for exit in -lboost_filesystem... (cached) no
checking for exit in -lboost_filesystem... (cached) no
configure: error: Could not link against boost_filesystem !

正如您所看到的，它可以很好地检测到一些库，但是对于boost-filesystem，它会失败。以下是~/local/lib的内容：

sb@stephane:~$ ls -1 /home/sb/local/lib/
libboost_filesystem.a
libboost_filesystem.so
libboost_filesystem.so.1.42.0
libboost_program_options.a
libboost_program_options.so
libboost_program_options.so.1.42.0
libboost_system.a
libboost_system.so
libboost_system.so.1.42.0
libboost_thread.a
libboost_thread.so
libboost_thread.so.1.42.0

所以这个库就在那里。我尝试了boost-1.39和boost-1.42，没有不同的结果，你知道为什么会发生这种情况吗？我是不是忘了什么？

Answer 1

因为boost-1.39 libboost_filesystem依赖于libboost_system。在1.39之前，你只能链接到boost_filesystem，在以后的版本中，你必须同时链接到这两个版本。

也许这与你的错误有关。

Answer 2

我发现boost.m4比Autoconf Macro Archive中的Boost宏要健壮得多。只要迁移到boost.m4，您就可能会有好运气。