cflags'-Wl，-export-dynamic'vs linker flags'-export-dynamic' [英] cflags '-Wl,-export-dynamic' vs linker flags '-export-dynamic'

问题描述

我使用CMAKE_C_FLAGS = -Wl编译了具有不同编译标志的相同程序（不是库），在CMake中使用Clang

I compiled the same program (not library) with different compilation flags, in CMake with Clang

1. export-dynamic


2. 使用CMAKE_EXE_LINKER_FLAGS = -export-dynamic

但我注意到方式似乎不工作。我找不到导出的符号。我很惊讶，只有第一路工作。我不知道C编译器做一些棘手的事情，或Clang，或CMake。但是如何让第二种方式工作？

But I noticed that the second way doesn't seem to work. I can't find the exported symbols. I'm so surprised that only the 1st way works. I don't know if the C compilers do something tricky, or Clang, or CMake. But how to let the second way work? The first way would print a lot of warnings.

推荐答案

为第二个变体提供相同的选项。

Provide same options for second variant.

set（CMAKE_EXE_LINKER_FLAGS-Wl，-export-dynamic）

set(CMAKE_EXE_LINKER_FLAGS "-Wl,-export-dynamic")

因为编译器和链接器在你的情况下是一样的。

Because compiler and linker the same in your case.

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