compilation - Cannot compile Cairo C code on Windows 10

Question

I am trying to compile the zetcode lines on Windows 10 using msys64.

I use the following compilation command:

gcc example.c -o example `pkg-config --cflags --libs cairo gtk+-3.0`

and get the following error:

-bash: pkg-config: command not found
example.c:1:19: fatal error: cairo.h: No such file or directory
 #include <cairo.h>

However I did pacman -S mingw-w64-i686-cairo before and the installation was successful. When I type **pacman -Ss mingw-w64-i686-cairo ** I get the following:

mingw32/mingw-w64-i686-cairo 1.15.2-4 [installed]
    Cairo vector graphics library (mingw-w64)

When I run gcc -v I get:

Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-msys/5.3.0/lto-wrapper.exe Target: x86_64-pc-msys Configured with: /msys_scripts/gcc/src/gcc-5.3.0/configure --build=x86_64-pc-msys --prefix=/usrable-static --enable-version-specific-runtime-libs --with-arch=x86-64 --with-tune=generic --diso --enable-graphite --enable-threads=posix --enable-libatomic --enable-libcilkrts --enable-libg --disable-win32-registry --disable-symvers --with-gnu-ld --with-gnu-as --disable-isl-version-cith-system-zlib --enable-linker-build-id --with-default-libstdcxx-abi=gcc4-compatible Thread model: posix gcc version 5.3.0 (GCC)

Last but not least, If I follow the instruction on this website I can compile the lines code. However, GTK3 version provided is very old and cannot run newer code.

The paths to Cairo.h are:

C:MinGWincludecairo for the outdated (but working) GTK+3 install

and

C:msys64mingw32includecairo

and

C:msys64mingw64includecairo for the newer (but not working) GTK3 install using msys64

Which directory is MSYS64 trying to find the Cairo library?

Answer 1

You showed two messages. Lines two and three came from the compiler. The first line came from the shell. That first bug caused the second bug. It says that the pkg-config command doesn't exist. You need to install its package. Use this command (it installs other useful packages, too):

pacboy sync base-devel

(You don't need to name cairo in the pkg-config command; gtk+-3.0 names the packages that it needs.)