有一个包装剪刀http://hackage.haskell.org/package/clipper,我想用它来检测复杂多边形的交集 . 它是C包的FFI . 如果你跑,它工作正常
cabal build --with-gcc=/usr/bin/g++
但不是 . 有没有办法将gcc选项放入cabal文件或以其他方式让我的堆栈项目用g构建依赖项?
由于某种原因设置$ PATH不起作用:
% cabal build --with-gcc=g++
Building clipper-0.0.1...
Preprocessing library clipper-0.0.1...
[1 of 1] Compiling Algebra.Clipper ( dist/build/Algebra/Clipper.hs, dist/build/Algebra/Clipper.o )
In-place registering clipper-0.0.1...
% PATH=$(pwd):$PATH gcc
g++: fatal error: no input files
compilation terminated.
% PATH=$(pwd):$PATH cabal build
Building clipper-0.0.1...
Preprocessing library clipper-0.0.1...
In file included from Clipper.hsc:27:0:
cbits/clipper.hpp:29:18: fatal error: vector: Dosiero aŭ dosierujo ne ekzistas
compilation terminated.
compiling dist/build/Algebra/Clipper_hsc_make.c failed (exit code 1)
command was: /usr/bin/gcc -c dist/build/Algebra/Clipper_hsc_make.c -o dist/build/Algebra/Clipper_hsc_make.o -fno-stack-protector -D__GLASGOW_HASKELL__=710 -Dlinux_BUILD_OS=1 -Dx86_64_BUILD_ARCH=1 -Dlinux_HOST_OS=1 -Dx86_64_HOST_ARCH=1 -Icbits -Idist/build/autogen -include dist/build/autogen/cabal_macros.h -I/usr/local/haskell/ghc-7.10.2-x86_64/lib/ghc-7.10.2/base_GDytRqRVSUX7zckgKqJjgw/include -I/usr/local/haskell/ghc-7.10.2-x86_64/lib/ghc-7.10.2/integ_2aU3IZNMF9a7mQ0OzsZ0dS/include -I/usr/local/haskell/ghc-7.10.2-x86_64/lib/ghc-7.10.2/include -I/usr/local/haskell/ghc-7.10.2-x86_64/lib/ghc-7.10.2/include/
同样,更改以下@ErikR提议的Setup.hs也无济于事 .
% runghc Setup.hs build
"Hello, I am running"
fomg
BuildFlags
{ buildProgramPaths = []
, buildProgramArgs = []
, buildDistPref = Flag "dist"
, buildVerbosity = Flag Normal
, buildNumJobs = NoFlag
, buildArgs = []
}
fimg
BuildFlags
{ buildProgramPaths = [ ( "gcc" , "/usr/bin/g++" ) ]
, buildProgramArgs = []
, buildDistPref = Flag "dist"
, buildVerbosity = Flag Normal
, buildNumJobs = NoFlag
, buildArgs = []
}
Building clipper-0.0.1...
Preprocessing library clipper-0.0.1...
In file included from Clipper.hsc:27:0:
(etc)
请注意,它在buildHook行崩溃,所以为了打印标记,我需要更改周围的顺序 .
1 回答
试试这个更简单的自定义Setup.hs文件:
Original Answer
一些想法:
(1)创建一个名为
gcc
的包装器脚本,调用g++
. 将脚本尽早放入PATH中,以便运行gcc
将运行您的脚本而不是真正的gcc
. 也许只有在构建clipper包时才有这个包装脚本 .(2)编写自定义Setup.hs .
将clipper.cabal文件中的
build-type
字段修改为Custom
而不是Simple
将Setup.hs文件替换为:
注意:不需要导入Text.Show.Pretty,因此如果没有安装它,可以删除它和ppShow调用 .
以上Setup.hs应与使用
--with-gcc=g++
调用cabal具有相同的效果 .