How to install ImageMagick® from source on OS X 10.11 through macOS 15.x Sequoia

With trial and error, I have managed to compile and install the latest ImageMagick supporting PNG file format from source.
This is the memorandum how to compile and install ImageMagick from source on OS X 10.11 through macOS 15.x Sequoia without MacPorts nor Homebrew.

Modern releases of ImageMagick 6.9.3.x use libpng.pc to find and configure the PNG reference library.
Compiling ImageMagick 7.0.1.x with the PNG delegate library, pkg-config is required.
For compiling ImageMagick 7.0.6.x with the latest PNG library (libpng ≧1.6.31), zlib library is required.

1) First, install pkg-config.
2) Second, install zlib.
3) Third, install libpng.
4) Then you can compile and install ImageMagick with the PNG reference library.
5) If you need more than one library (e.g. JPEG, PNG, TIFF, etc.).
6) Another approach when multiple libraries are needed

Install pkg-config

1. Download the latest pkg-config

cd ~
curl -O https://pkg-config.freedesktop.org/releases/pkg-config-0.29.2.tar.gz
tar zxf pkg-config-0.29.2.tar.gz

2. Configure pkg-config

cd pkg-config-0.29.2
export LDFLAGS="-framework CoreFoundation" 
./configure --with-internal-glib --prefix=/usr/local/pkgconfig

3. Compile and install pkg-config

make && make check
sudo make install

4. Set search path

export PATH="/usr/local/keyconfig/bin:$PATH"

Install zlib

1. Download the latest zlib

cd ~
curl -LO https://www.zlib.net/zlib-1.3.1.tar.gz
tar zxf zlib-1.3.1.tar.gz

2. Configure zlib

cd zlib-1.3.1
./configure --prefix=/usr/local/zlib

3. Compile and install zlib

make && make check
sudo make install

Install libpng

1. Download the latest libpng

cd ~
curl -LO https://download.sourceforge.net/libpng/libpng-1.6.47.tar.gz
tar zxf libpng-1.6.47.tar.gz

2. Configure libpng

cd libpng-1.6.47
./configure --prefix=/usr/local/libpng

3. Compile and install libpng

make && make check
sudo make install

Install ImageMagick

1. Download the latest ImageMagick

cd ~
curl -LO https://imagemagick.org/archive/ImageMagick-7.1.1-43.tar.gz
tar zxf ImageMagick-7.1.1-43.tar.gz

2. Configure ImageMagick

cd ImageMagick-7.1.1-43
export PKG_CONFIG_PATH="/usr/local/libpng/lib/pkgconfig/:/usr/local/zlib/lib/pkgconfig/"
./configure --prefix=/usr/local/magick --with-png

3. Verify configuration ends up with the report as follows:

DELEGATES         = bzlib png zlib

4. Compile

make && make check

"make check" will end up with as below:

============================================================================
Testsuite summary for ImageMagick 7.1.1-43
============================================================================
# TOTAL: 87
# PASS:  87
# SKIP:  0
# XFAIL: 0
# FAIL:  0
# XPASS: 0
# ERROR: 0
============================================================================

5. Install

sudo make install

6. Set search path

export PATH="/usr/local/magick/bin:$PATH"

7. Verify ImageMagick installed properly

identify -version
Version: ImageMagick 7.1.1-43 Q16-HDRI x86_64 22550 https://imagemagick.org
Copyright: (C) 1999 ImageMagick Studio LLC
License: https://imagemagick.org/script/license.php
Features: Cipher DPC HDRI 
Delegates (built-in): bzlib png zlib
Compiler: clang (16.0.0)

8. Verify ImageMagick is working properly

magick logo: ~/Desktop/logo.png
identify ~/Desktop/logo.png
/Users/xxx/Desktop/logo.png PNG 640x480 640x480+0+0 8-bit sRGB 256c 27434B 0.000u 0:00.002

9. At last open logo.png and confirm the following ImageMagic Logo appears.

If the FreeType library is not installed, you do not pass the unit tests and "make check" may end up with:

=========================================
   ImageMagick 7.0.4: ./test-suite.log
=========================================
# TOTAL: 86
# PASS:  84
# SKIP:  0
# XFAIL: 0
# FAIL:  2
# XPASS: 0
# ERROR: 0

.. contents:: :depth: 2

FAIL: tests/wandtest
====================
wandtest: delegate library support not built-in '/Library/Fonts//Arial.ttf' (Freetype) 
@ warning/annotate.c/RenderFreetype/1792.
...
FAIL: tests/wandtest.tap 1

FAIL: Magick++/demo/demos
=========================
button: delegate library support not built-in '/Library/Fonts//Arial.ttf' (Freetype) 
@ warning/annotate.c/RenderFreetype/1792.
...
FAIL: Magick++/demo/demos.tap 6

This problem has now been corrected and the FreeType library does not necessarily need to be installed.

You occasionally may be encountered in a configuration failure ending up with:

configure: error: in `/Users/xxx/Desktop/ImageMagick-7.0.8-66':
configure: error: libltdl is required for modules and OpenCL builds

If so, install libtool to avoid an error.

Install libtool

1. Download the latest libtool

cd ~
curl -LO https://ftpmirror.gnu.org/libtool/libtool-2.5.4.tar.gz
tar zxf libtool-2.5.4.tar.gz

2. Configure libtool

cd libtool-2.5.4
./configure --prefix=/usr/local/libtool

3. Compile and install pkg-config

make
sudo make install

4. Set search path

export PATH="/usr/local/libtool/bin:/usr/local/libtool/share:$PATH"

5. Configure ImageMagick like this:

export LDFLAGS="-L/usr/local/libtool/lib/"
export CFLAGS="-I/usr/local/libtool/include"
export PKG_CONFIG_PATH="/usr/local/libpng/lib/pkgconfig/:/usr/local/zlib/lib/pkgconfig/"
./configure --prefix=/usr/local/magick --with-png

If you need more than one library (e.g. JPEG, PNG, TIFF, etc.),

1. Install the latest libraries you need such as JPEG and TIFF:

cd ~/Desktop
curl -LO http://www.ijg.org/files/jpegsrc.v9f.tar.gz
tar zxf jpegsrc.v9f.tar.gz
cd jpeg-9e
./configure --prefix=/usr/local/jpeg
make && sudo make install

cd ~/Desktop
curl -LO https://download.osgeo.org/libtiff/tiff-4.7.0.tar.gz
tar zxf tiff-4.7.0.tar.gz
cd tiff-4.7.0
./configure --prefix=/usr/local/libtiff
make && sudo make install

2. Configure ImageMagick like this:

export LDFLAGS="-L/usr/local/jpeg/lib/ -L/usr/local/libpng/lib/ -L/usr/local/libtiff/lib/"
export CFLAGS="-I/usr/local/jpeg/include -I/usr/local/libpng/include -I/usr/local/libtiff/include"
export PKG_CONFIG_PATH="/usr/local/jpeg/lib/pkgconfig/:/usr/local/libpng/lib/pkgconfig/:/usr/local/libtiff/lib/pkgconfig/:/usr/local/zlib/lib/pkgconfig/"
./configure --prefix=/usr/local/magick --with-jpeg --with-png --with-tiff