Why does my C program throw a 'libgcc_s_dw2-1.dll is missing' error when I run it?-C++-php.cn

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Why does my C program throw a 'libgcc_s_dw2-1.dll is missing' error when I run it?

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Nov 08, 2024 pm 05:10 PM

Why does my C program throw a

Troubleshooting "libgcc_s_dw2-1.dll is missing" Error While Running C Programs

When launching a C executable generated using Code::Blocks, users may encounter a runtime error message indicating "The program can't start because libgcc_s_dw2-1.dll is missing." This issue is primarily attributed to the nature of MinGW/gcc compilers.

Cause:

The libgcc_s_dw2-1.dll is a runtime library required by programs compiled with MinGW/gcc. By default, this library is not included in the executable when building with Code::Blocks.

Solutions:

To resolve this issue, there are two primary options:

Add Compiler Directory to PATH:

Locate the compiler's bin directory, which typically contains libgcc_s_dw2-1.dll.
Add this directory to the PATH environment variable so that the operating system can locate the library at runtime.

Use Static Linking Flags:

Add the following flags to the compiler and linker settings:
-static -static-libgcc -static-libstdc
This forces the compiler to link the required libraries statically into the executable, eliminating the need for the missing DLL at runtime.

Note:

If the executable will be distributed, using static linking flags is recommended to avoid dependency on external libraries.
If the program is intended only for personal use, adding the compiler directory to the PATH variable may be more convenient.

Additional Resources:

[Code::Blocks "Project Build Options"](https://wiki.codeblocks.org/index.php?title=Project_build_options)
[GNU gcc Link Options](https://gcc.gnu.org/onlinedocs/gcc/Link-Options.html)

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