diff --git a/math/py-numpy1/Makefile b/math/py-numpy1/Makefile
index e6b83231570d..7873d11b3784 100644
--- a/math/py-numpy1/Makefile
+++ b/math/py-numpy1/Makefile
@@ -1,5 +1,6 @@
 PORTNAME=	numpy
 DISTVERSION=	1.26.4
+PORTREVISION=	1
 CATEGORIES=	math python
 MASTER_SITES=	PYPI \
 		https://numpy.org/doc/${DISTVERSION:R}/:doc
diff --git a/math/py-numpy1/files/patch-numpy___configtool.py b/math/py-numpy1/files/patch-numpy___configtool.py
new file mode 100644
index 000000000000..4d6158efa35a
--- /dev/null
+++ b/math/py-numpy1/files/patch-numpy___configtool.py
@@ -0,0 +1,42 @@
+--- numpy/_configtool.py.orig	2026-04-04 01:24:53 UTC
++++ numpy/_configtool.py
+@@ -0,0 +1,39 @@
++import argparse
++from pathlib import Path
++import sys
++
++from .version import __version__
++from .lib.utils import get_include
++
++
++def main() -> None:
++    parser = argparse.ArgumentParser()
++    parser.add_argument(
++        "--version",
++        action="version",
++        version=__version__,
++        help="Print the version and exit.",
++    )
++    parser.add_argument(
++        "--cflags",
++        action="store_true",
++        help="Compile flag needed when using the NumPy headers.",
++    )
++    parser.add_argument(
++        "--pkgconfigdir",
++        action="store_true",
++        help=("Print the pkgconfig directory in which `numpy.pc` is stored "
++              "(useful for setting $PKG_CONFIG_PATH)."),
++    )
++    args = parser.parse_args()
++    if not sys.argv[1:]:
++        parser.print_help()
++    if args.cflags:
++        print("-I" + get_include())
++    if args.pkgconfigdir:
++        _path = Path(get_include()) / '..' / 'lib' / 'pkgconfig'
++        print(_path.resolve())
++
++
++if __name__ == "__main__":
++    main()
diff --git a/math/py-numpy1/files/patch-numpy_core_meson.build b/math/py-numpy1/files/patch-numpy_core_meson.build
new file mode 100644
index 000000000000..1e0b9cdc79ce
--- /dev/null
+++ b/math/py-numpy1/files/patch-numpy_core_meson.build
@@ -0,0 +1,26 @@
+--- numpy/core/meson.build.orig	2024-02-05 21:17:48 UTC
++++ numpy/core/meson.build
+@@ -621,6 +621,23 @@ src_ufunc_api = custom_target('__ufunc_api',
+   install_dir: np_dir / 'core/include/numpy'
+ )
+ 
++# Write out pkg-config file
++# -------------------------
++
++# Note: we can't use Meson's built-in pkgconfig module, because we have to
++# install numpy.pc within site-packages rather than in its normal location.
++cdata_numpy_pc = configuration_data()
++cdata_numpy_pc.set('version', meson.project_version())
++
++# Note: keep install path in sync with numpy/_configtool.py
++_numpy_pc = configure_file(
++  input: 'numpy.pc.in',
++  output: 'numpy.pc',
++  configuration: cdata_numpy_pc,
++  install: true,
++  install_dir: np_dir / 'core/lib/pkgconfig',
++  install_tag: 'devel'
++)
+ 
+ # Set common build flags for C and C++ code
+ # -----------------------------------------
diff --git a/math/py-numpy1/files/patch-numpy_core_numpy.pc.in b/math/py-numpy1/files/patch-numpy_core_numpy.pc.in
new file mode 100644
index 000000000000..58f33ee87633
--- /dev/null
+++ b/math/py-numpy1/files/patch-numpy_core_numpy.pc.in
@@ -0,0 +1,10 @@
+--- numpy/core/numpy.pc.in.orig	2026-04-04 00:13:21 UTC
++++ numpy/core/numpy.pc.in
+@@ -0,0 +1,7 @@
++prefix=${pcfiledir}/../..
++includedir=${prefix}/include
++
++Name: numpy
++Description: NumPy is the fundamental package for scientific computing with Python.
++Version: @version@
++Cflags: -I${includedir}
diff --git a/math/py-numpy1/files/patch-numpy_lib_utils.py b/math/py-numpy1/files/patch-numpy_lib_utils.py
new file mode 100644
index 000000000000..03914f54522c
--- /dev/null
+++ b/math/py-numpy1/files/patch-numpy_lib_utils.py
@@ -0,0 +1,35 @@
+--- numpy/lib/utils.py.orig	2024-02-05 21:17:48 UTC
++++ numpy/lib/utils.py
+@@ -76,18 +76,29 @@ def get_include():
+     """
+     Return the directory that contains the NumPy \\*.h header files.
+ 
+-    Extension modules that need to compile against NumPy should use this
++    Extension modules that need to compile against NumPy may need to use this
+     function to locate the appropriate include directory.
+ 
+     Notes
+     -----
+-    When using ``distutils``, for example in ``setup.py``::
++    When using ``setuptools``, for example in ``setup.py``::
+ 
+         import numpy as np
+         ...
+         Extension('extension_name', ...
+-                include_dirs=[np.get_include()])
++                  include_dirs=[np.get_include()])
+         ...
++
++    Note that a CLI tool ``numpy-config`` was introduced in NumPy 2.0, using
++    that is likely preferred for build systems other than ``setuptools``::
++
++        $ numpy-config --cflags
++        -I/path/to/site-packages/numpy/_core/include
++
++        # Or rely on pkg-config:
++        $ export PKG_CONFIG_PATH=$(numpy-config --pkgconfigdir)
++        $ pkg-config --cflags
++        -I/path/to/site-packages/numpy/_core/include
+ 
+     """
+     import numpy
diff --git a/math/py-numpy1/files/patch-numpy_meson.build b/math/py-numpy1/files/patch-numpy_meson.build
new file mode 100644
index 000000000000..77cd8dd42fc0
--- /dev/null
+++ b/math/py-numpy1/files/patch-numpy_meson.build
@@ -0,0 +1,10 @@
+--- numpy/meson.build.orig	2024-02-05 21:17:48 UTC
++++ numpy/meson.build
+@@ -215,6 +215,7 @@ python_sources = [
+   '__init__.pxd',
+   '__init__.py',
+   '__init__.pyi',
++  '_configtool.py',
+   '_distributor_init.py',
+   '_globals.py',
+   '_pytesttester.py',
diff --git a/math/py-numpy1/files/patch-numpy_tests_test__configtool.py b/math/py-numpy1/files/patch-numpy_tests_test__configtool.py
new file mode 100644
index 000000000000..306e0f5f677b
--- /dev/null
+++ b/math/py-numpy1/files/patch-numpy_tests_test__configtool.py
@@ -0,0 +1,44 @@
+--- numpy/tests/test_configtool.py.orig	2026-04-04 00:20:07 UTC
++++ numpy/tests/test_configtool.py
+@@ -0,0 +1,41 @@
++import os
++import subprocess
++import sysconfig
++
++import pytest
++import numpy as np
++
++
++is_editable = not bool(np.__path__)
++numpy_in_sitepackages = sysconfig.get_path('platlib') in np.__file__
++# We only expect to have a `numpy-config` available if NumPy was installed via
++# a build frontend (and not `spin` for example)
++if not (numpy_in_sitepackages or is_editable):
++    pytest.skip("`numpy-config` not expected to be installed",
++                allow_module_level=True)
++
++
++def check_numpyconfig(arg):
++    p = subprocess.run(['numpy-config', arg], capture_output=True, text=True)
++    p.check_returncode()
++    return p.stdout.strip()
++
++
++def test_configtool_version():
++    stdout = check_numpyconfig('--version')
++    assert stdout == np.__version__
++
++
++def test_configtool_cflags():
++    stdout = check_numpyconfig('--cflags')
++    assert stdout.endswith(os.path.join('numpy', 'core', 'include'))
++
++
++def test_configtool_pkgconfigdir():
++    stdout = check_numpyconfig('--pkgconfigdir')
++    assert stdout.endswith(os.path.join('numpy', 'core', 'lib', 'pkgconfig'))
++
++    if not is_editable:
++        # Also check that the .pc file actually exists (unless we're using an
++        # editable install, then it'll be hiding in the build dir)
++        assert os.path.exists(os.path.join(stdout, 'numpy.pc'))
diff --git a/math/py-numpy1/files/patch-pyproject.toml b/math/py-numpy1/files/patch-pyproject.toml
new file mode 100644
index 000000000000..f26d7ee283c7
--- /dev/null
+++ b/math/py-numpy1/files/patch-pyproject.toml
@@ -0,0 +1,21 @@
+--- pyproject.toml.orig	2024-02-05 21:17:48 UTC
++++ pyproject.toml
+@@ -1,8 +1,8 @@ requires = [
+ [build-system]
+ build-backend = "mesonpy"
+ requires = [
+-    "Cython>=0.29.34,<3.1",
+-    "meson-python>=0.15.0,<0.16.0",
++    "Cython>=0.29.34",
++    "meson-python>=0.15.0",
+ ]
+ 
+ [project]
+@@ -43,6 +43,7 @@ f2py = 'numpy.f2py.f2py2e:main'
+ 
+ [project.scripts]
+ f2py = 'numpy.f2py.f2py2e:main'
++numpy-config = 'numpy._configtool:main'
+ 
+ [project.entry-points.array_api]
+ numpy = 'numpy.array_api'