How do I compile C with Clang

Question

I have installed Clang by using apt-get in Ubuntu  and I can successfully compile C files using it  However  I have no idea how to compile C   through it  What do I need to do to compile C

User · Answer

I ve had a similar problem when building Clang from source  but not with sudo apt-get install  This might depend on the version of Ubuntu which you re running    It might be worth checking if clang   can find the correct locations of your C   libraries   Compare the results of g   -v  lt filename cpp gt  and clang   -v  lt filename cpp gt   under   include  lt        search starts here

User · Answer

Solution 1    clang   your cpp  Solution 2    clang your cpp -lstdc    Solution 3     clang -x c   your cpp

User · Answer

The command clang is for C  and the command clang   is for C

User · Answer

Open a Terminal window and navigate to your project directory  Run these sets of commands  depending on which compiler you have installed  To compile multiple C   files using clang      clang     cpp      a out   To compile multiple C   files using g      g   -c   cpp    g   -o temp exe   o     temp exe

User · Answer

I do not know why there is no answer directly addressing the problem  When you want to compile C   program  it is best to use clang    For example  the following works for me  clang   -Wall -std c  11 test cc -o test  If compiled correctly  it will produce the executable file test  and you can run the file by using   test  Or you can just use clang   test cc to compile the program  It will produce a default executable file named a out  Use   a out to run the file  The whole process is a lot like g   if you are familiar with g    See this post to check which warnings are included with -Wall option  This page shows a list of diagnostic flags supported by Clang  A note on using clang -x c    Kim Gr  sman says that you can also use clang -x c   to compile cpp programs  but that may not be true  For example  I am having a simple program below   include  lt iostream gt   include  lt vector gt   int main            std  vector lt int gt  v    1  2  3  4  5          std  vector lt int gt  v 10  5       int sum   0      for  int i   0  i  lt  v size    i             sum    v i  2            std  cout  lt  lt   quot sum is  quot   lt  lt  sum  lt  lt  std  endl      return 0                                                           clang   test cc -o test will compile successfully  but clang -x c   will not  showing a lot undefined references errors  So I guess they are not exactly equivalent  It is best to use clang   instead of clang -x c   when compiling c   programs to avoid extra troubles   clang version  11 0 0 Platform  Ubuntu 16 04

User · Answer

Also  for posterity -- Clang  like GCC  accepts the -x switch to set the language of the input files  for example     clang -x c   some random file txt   This mailing list thread explains the difference between clang and clang   well  Difference between clang and clang

[c++] How do I compile C++ with Clang?

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