How to install IMageMagick and ImageWand on Mac OS? [duplicate] - c++

Question

I'm programming in C. I want use ImageMagick library but some fuction can't be resolved.
This is my cMakeList.txt file:
cmake_minimum_required(VERSION 3.3)
project(WebServer)
set(CMAKE_C_COMPILER "/usr/bin/gcc")
set(SOURCE_FILES io.c server.c lock_fcntl.c sig_handler.c thread_job.c msg_parser.c)
set(LIB http-parser-master/http_parser.c )
set(CMAKE_USE_PTHREADS_INIT true)
set(CMAKE_USE_PTHREADS_INIT ON)
find_package(Threads REQUIRED)
find_package(ImageMagick COMPONENTS ImageWand)
include_directories(header)
include_directories(http-parser-master)
#include_directories(/usr/local/include/ImageMagick-7/MagickWand)
include_directories(${ImageMagick_INCLUDE_DIRS})
add_executable(server ${SOURCE_FILES} ${LIB})
add_executable(client client.c io.c)
add_executable(main main.c io.c)
target_link_libraries(main ${ImageMagick_LIBRARIES})
target_link_libraries(server Threads::Threads)
and this is the source main.c:
#include <ImageMagick-7/MagickWand/MagickWand.h>
#include "basic.h"
void convert_image(char *path, float quality_factor, char *out) {
int width, height;
MagickWand *n_wand = NULL;
MagickWandGenesis();
m_wand = (struct MagickWand *) NewMagickWand();
MagickReadImage(m_wand,"logo:");
width = MagickGetImageWidth(m_wand);
height = MagickGetImageHeight(m_wand);
if((width /= 2) < 1)width = 1;
if((height /= 2) < 1)height = 1;
MagickResizeImage(m_wand,width,height,LanczosFilter,1);
MagickSetImageCompressionQuality(m_wand,95);
MagickWriteImage(m_wand,"logo_resize.jpg");
if(m_wand)m_wand = (struct MagickWand *) DestroyMagickWand(m_wand);
MagickWandTerminus();
}
Only MagickWandGenesis() and MagickWandTerminus() are resolved.
The installation of the library ends correctly. How to solve?
edit:
Running I get the error:
/usr/local/include/ImageMagick-7/MagickWand/MagickWand.h:29:40: fatal error: MagickCore/magick-config.h: File o directory non esistente
# include "MagickCore/magick-config.h"
^
compilation terminated.
make[3]: *** [CMakeFiles/main.dir/main.c.o] Errore 1
make[2]: *** [CMakeFiles/main.dir/all] Errore 2
make[1]: *** [CMakeFiles/main.dir/rule] Errore 2
make: *** [main] Errore 2
I tried the solution shown here but does not work:
ImageMagick No such file or directory

Answer 1

The library structure is that:
ImageMagick-7
├── MagickCore
│   ├── magick-config.h
|
└── MagickWand
├── MagickWand.h
MagickWand.h includes some header in MagickCore.
I fix replacing include_directories(${ImageMagick_INCLUDE_DIRS})
with include_directories(/usr/local/include/ImageMagick-7).
I don't know why but if i print ${ImageMagick_INCLUDE_DIRS} this is not set.