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#!/usr/bin/env python3
# External command, intended to be called with meson.add_install_script() in meson.build
# argv[1]
# extra-install-cmd.py <aclocal_macrodir>
import os
import sys
import subprocess
if not os.getenv('DESTDIR'):
# Inform the installer that M4 macro files installed in a directory
# not known to aclocal will not be picked up automatically.
# (Starting with Python 3.7 text=True is a more understandable equivalent to
# universal_newlines=True. Let's use only features in Python 3.5.)
result = subprocess.run(['aclocal', '--print-ac-dir'],
stdout=subprocess.PIPE, stderr=subprocess.DEVNULL,
universal_newlines=True)
acdir = result.stdout
aclocal_path = os.getenv('ACLOCAL_PATH')
# acdir and aclocal_path can be sequences of os.pathsep-separated paths.
# Merge them to one sequence with leading and trailing os.pathsep.
# os.pathsep is ':' for Linux, ';' for Windows.
acdirs = os.pathsep
if aclocal_path:
acdirs += aclocal_path + os.pathsep
if acdir:
acdirs += acdir + os.pathsep
if (os.pathsep + sys.argv[1] + os.pathsep) not in acdirs:
# f'''.....''' would require Python 3.6. Avoid it.
print('''\
NOTE
----
The mm-common Autoconf macro files have been installed in a different
directory than the system aclocal directory. In order for the installed
macros to be found, it may be necessary to add the mm-common include
path to the ACLOCAL_PATH environment variable:
ACLOCAL_PATH="$ACLOCAL_PATH:{}"
export ACLOCAL_PATH'''.format(sys.argv[1])
)
sys.exit(0)
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