我无法在Cygwin下构建一些CGAL示例。所有失败的示例都共享类似的错误消息。
非常感谢任何指导。
以下是我遵循的步骤以及“make”中的示例错误。
Cygwin(x64)在Windows 7下安装到d:\ cygwin64。
从https://github.com/CGAL/cgal/releases/download/releases%2FCGAL-4.9/CGAL-4.9.zip下载的CGAL来源 并解压缩到D:\ cygwin64 \ usr \ CGAL-4.9
CGAL所需的所有库都是通过Cygwin x64设置安装的。
初始cmake:
cd /usr/CGAL-4.9 cmake -DCMAKE_LEGACY_CYGWIN_WIN32=1 -DWITH_CGAL_Qt5=OFF -DWITH_examples=ON .
无法配置一些示例,其中包括 mesh 和Scale_space_reconstruction_3示例。
cd /usr/CGAL-4.9 make make examples
前几个示例已成功创建。例如,
PATH=/usr/local/bin:/usr/bin:/bin:/lib:/usr/CGAL-4.9/bin:/usr/CGAL-4.9/lib cd /usr/CGAL-4.9/examples/AABB_tree ./AABB_triangle_3_example.exe 3 intersections(s) with ray query closest point is: 0.333333 0.333333 0.333333 squared distance: 8.33333
后面的示例演示了一些唠叨问题,该问题出现在许多示例中:
cd /usr/CGAL-4.9/examples/Snap_rounding_2/ cmake -DCGAL_DIR=/usr/CGAL-4.9 . make Scanning dependencies of target snap_rounding [ 16%] Building CXX object CMakeFiles/snap_rounding.dir/snap_rounding.cpp.o In file included from /usr/CGAL-4.9/include/CGAL/CORE/CoreDefs.h:41:0, from /usr/CGAL-4.9/include/CGAL/CORE/BigFloatRep.h:40, from /usr/CGAL-4.9/include/CGAL/CORE/BigFloat.h:38, from /usr/CGAL-4.9/include/CGAL/CORE_BigFloat.h:27, from /usr/CGAL-4.9/include/CGAL/CORE_arithmetic_kernel.h:39, from /usr/CGAL-4.9/include/CGAL/Arithmetic_kernel.h:51, from /usr/CGAL-4.9/include/CGAL/Arr_rational_function_traits_2.h:28, from /usr/CGAL-4.9/include/CGAL/Sweep_line_2_algorithms.h:37, from /usr/CGAL-4.9/include/CGAL/Snap_rounding_2.h:28, from /usr/CGAL-4.9/examples/Snap_rounding_2/snap_rounding.cpp: : /usr/CGAL-4.9/include/CGAL/CORE/extLong.h:171:8: warning: ‘CORE::extLong::extLong(int)’ redeclared without dllimport attribute after being referenced with dll linkage inline extLong::extLong(int i) : val(i), flag(0) { ^ /usr/CGAL-4.9/include/CGAL/CORE/extLong.h:292:13: warning: ‘bool CORE::extLong::isNaN() const’ redeclared without dllimport attribute after being referenced with dll linkage inline bool extLong::isNaN() const {
这里省略了许多类似的错误。
感谢!!!
答案 0 :(得分:0)
由于您未报告的错误可能是由于错误的导入指令,您可以尝试以下操作:
在include/CGAL/export/helpers.h
替换
# if defined(_WIN32) || defined(__CYGWIN__)
with
# if defined(_WIN32)
然后使用
进行构建cmake -DWITH_CGAL_Qt5=OFF -DWITH_examples=ON
因为我看到构建工作效果更好(20%完成了我们的工作并仍在继续)