Unable to compile on centos 7.4 : error: expected ‘,’ or ‘;’ before ‘typedef’

[darksniperx]

which gcc: /usr/bin/gcc

Do you have a clean 7.4 or upgrade from existing 7.3?

[avij]

which gcc: /usr/bin/gcc

Do you have a clean 7.4 or upgrade from existing 7.3?

I had installed that machine years ago, but I updated that machine to 7.4.1708 a few weeks ago.

Now I did a totally fresh 7.4.1708 installation from minimal.iso, then ran "yum update", rebooted and installed the following packages and their dependencies: gcc make wget bzip2 nasm

Then extracted the tarball, ran ./configure and make => worked OK. I don't know why this doesn't work for you.

[TrevorH]

I'd say this looks like something is overriding typedef with an invalid definition or something...

[darksniperx]

any leads on where i could look at to find out?

[TrevorH]

Since it appears to work for others using the same code, I'd say this is probably something else you've installed on your machine.

[pjsr2]

You can add the option "-E" to all other options in the gcc compilation comand. This writes the results of the preprocessor to stdout. Send this output to a file.
Locate the offending line with the float_t typedef. Now work your way up in the file and try to figure out what the incomplete statement is before this point that is causing the error message.
Also look at the lines that start with a '#' as these contain the names of included files. Check the file names to see if any of these is picked up from an unexpected location. Use rpm to check to which package the files belong and let rpm verify the contents of each of the files.