相关疑难解决方法(0)

在各种多线程C和C++项目中,我看到-pthread标志应用于编译和链接阶段,而其他人根本不使用它,只是传递-lpthread给链接阶段.

有没有危险没有编译和链接-pthread国旗 - 即-pthread实际做什么？我主要对Linux平台感兴趣.

我已经为Android编译了一些静态和共享库.具体来说,我有图书馆

libcoinblas.a   libcoinlapack.a   libcoinmetis.a   libcoinmumps.a   libipopt.a
libcoinblas.so  libcoinlapack.so  libcoinmetis.so  libcoinmumps.so  libipopt.so

此外,这些库是相互依赖的,即

Lapack requires Blas
Mumps  requires Blas and Metis
Ipopt  requires Mumps, Metis, and Lapack

使用共享库时,Android项目正确链接和运行,但无法使用静态库构建.

在共享的情况下,我使用的是cmake文件

cmake_minimum_required(VERSION 3.4.1)

add_library( native-lib
             SHARED
             src/main/cpp/cpp_example.cpp
             src/main/cpp/MyNLP.cpp)

# Add dependent libraries
add_library(blas SHARED IMPORTED)
set_property(TARGET blas PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinblas.so)

add_library(lapack SHARED IMPORTED)
set_property(TARGET lapack PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinlapack.so)

add_library(metis SHARED IMPORTED)
set_property(TARGET metis PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinmetis.so)

add_library(mumps SHARED IMPORTED)
set_property(TARGET mumps PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinmumps.so)

add_library(ipopt SHARED IMPORTED)
set_property(TARGET ipopt PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libipopt.so)

# …