[llvm-dev] I'm having problems compiling a program. Please help.

Phyl Bean via llvm-dev llvm-dev at lists.llvm.org
Sat Jun 1 12:17:52 PDT 2019

I'm not sure if this is the correct place to email for this kind of thing,
but I couldn't find any other contact info.  Also, I am new to llvm, so
please try to be understanding.

I keep getting an error when I try to compile a simple Hello World program
(as a test)(error included below).

The error is:

Clang: warning: unable to find a Visual Studio installation; try running
Clang from a developer command prompt [-Wmsvc-not-found]
hello.c:1:10: fatal error: 'string.h' file not found
#include <string.h>
1 error generated

It looks as if Clang is looking for a Visual Studio installation for
missing C library headers (string.h, stdio.h, math.h, etc.). Does
Clang/llvm come with C library headers? If not, where can I get them?  I
don't want to install Visual Studio because (to my understanding) it's
proprietary software. I've included the program I'm trying to compile
(hello.c) below.

#include <string.h>
#include <stdio.h>
int main(void){
    print("Hello World!");
    return 0;


Please note new suite number
Phyl Bean
Attorney at Law
207 N. Chestnut Street, Suite 240
Chaska, Minnesota 55318
(Parking is behind building)
Ph:  (952) 217-4473
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Cell: (612) 384-9062
phylbean at gmail.com

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