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Added a troubleshooting option. #265

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Added a troubleshooting option. #265

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899aaa0
Added a troubleshooting option.
telometto Jun 6, 2022
5aff207
Updated according to comments.
telometto Jun 6, 2022
c198c9b
Explicit numbering fixed.
telometto Jun 6, 2022
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25 changes: 20 additions & 5 deletions README.md
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Expand Up @@ -29,20 +29,35 @@ $ yum install libcs50
### From Source (Linux and Mac)

1. Download the latest release from https://github.com/cs50/libcs50/releases
1. Extract `libcs50-*.*`
1. `cd libcs50-*`
1. `sudo make install`
2. Extract `libcs50-*.*`
3. `cd libcs50-*`
4. `sudo make install`
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By default, we install to `/usr/local`. If you'd like to change the installation location, run
`sudo DESTDIR=/path/to/install make install` as desired.

## Troubleshooting
1. If, when compiling a program, you see `/usr/bin/ld: cannot find -lcs50`:
Add `export LIBRARY_PATH=/usr/local/lib` to your `.bashrc`.
1. If, when compiling a program, you see `fatal error: 'cs50.h' file not found`:
2. If, when compiling a program, you see `fatal error: 'cs50.h' file not found`:
Add `export C_INCLUDE_PATH=/usr/local/include` to your `.bashrc`.
1. If, when executing a program, you see `error while loading shared libraries: libcs50.so.8: cannot open shared object file: No such file or directory`:
3. If, when executing a program, you see `error while loading shared libraries: libcs50.so.8: cannot open shared object file: No such file or directory`:
Add `export LD_LIBRARY_PATH=/usr/local/lib` to your `.bashrc`.
4. If, when compiling a program, you see something similar to the following:
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```
cc calculator.c -o calculator
/usr/bin/ld: /tmp/ccst5Jkx.o: in function `main':
calculator.c:(.text+0x13): undefined reference to `get_int'
/usr/bin/ld: calculator.c:(.text+0x25): undefined reference to `get_int'
collect2: error: ld returned 1 exit status
make: *** [<builtin>: calculator] Error 1
```
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create a `Makefile` inside the project folder, and paste the following:
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```
LDLIBS += -lcs50
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CC := clang
CFLAGS += -Wall -Wextra -Werror -pedantic -std=c11
```

Close and reopen any terminal windows.

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