编译tiff:arm64-linux-static报错 Could NOT find CMath (missing: CMath_pow)

编译tiff:arm64-linux-static报错 Could NOT find CMath (missing: CMath_pow)

使用vcpkg编译tiff静态库时（tiff:arm64-linux-static）可能会遇到报错：

Could NOT find CMath (missing: CMath_pow)

解决方法是修改vcpkg目录下的buildtrees/tiff/src/v4.7.1-dfffa27dcf/cmake/FindCMath.cmake文件，将if(CMath_HAVE_LIBC_POW所在行和后面两行，以及FIND_PACKAGE_HANDLE_STANDARD_ARGS所在行注释掉，如下所示：

set(CMath_pow FALSE)
#if(CMath_HAVE_LIBC_POW OR CMath_HAVE_LIBM_POW)
#    set(CMath_pow TRUE)
#endif()

set(CMath_INCLUDE_DIRS)

include(FindPackageHandleStandardArgs)
#FIND_PACKAGE_HANDLE_STANDARD_ARGS(CMath REQUIRED_VARS CMath_pow)

简评：CMath本来就就是C标准库，没有必要再显式链接CMath_pow。