From 81b889e493c7213f1878588cfebc82d4292ef5ce Mon Sep 17 00:00:00 2001
From: Ryan Carsten Schmidt <ryandesign@macports.org>
Date: Fri, 29 Aug 2025 22:48:40 -0500
Subject: [PATCH] SoapyRTLSDR: Fix build with cmake >= 4

---
 science/SoapyRTLSDR/Portfile                  | 11 +++---
 science/SoapyRTLSDR/files/clang.patch         | 35 +++++++++++++++++++
 .../files/cmake_minimum_required.patch        | 23 ++++++++++++
 3 files changed, 64 insertions(+), 5 deletions(-)
 create mode 100644 science/SoapyRTLSDR/files/clang.patch
 create mode 100644 science/SoapyRTLSDR/files/cmake_minimum_required.patch

diff --git a/science/SoapyRTLSDR/Portfile b/science/SoapyRTLSDR/Portfile
index 61f9d52917f..99138f30990 100644
--- a/science/SoapyRTLSDR/Portfile
+++ b/science/SoapyRTLSDR/Portfile
@@ -4,7 +4,6 @@ PortSystem          1.0
 PortGroup           github 1.0
 PortGroup           cmake 1.1
 
-platforms           darwin macosx
 categories          science
 license             MIT
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
@@ -13,21 +12,23 @@ description         Soapy SDR module for RTL-SDR
 long_description    {*}${description}
 
 github.setup        pothosware SoapyRTLSDR 0.3.0 soapy-rtlsdr-
+revision            2
 # Change github.tarball_from to 'releases' or 'archive' next update
 github.tarball_from tarball
 checksums           rmd160  88bb56f7842b9ce4de9f32fe1df0545c543a6724 \
                     sha256  5fe2841548af43011381ef3da3f75be134245ccc215c12b0fea7f900760ce98f \
                     size    14389
-revision            1
 
 compiler.cxx_standard 2011
 
 depends_build-append \
-    port:pkgconfig
+    path:bin/pkg-config:pkgconfig
 
 depends_lib-append \
     port:SoapySDR \
     port:rtl-sdr
 
-configure.args-append \
-    -DCMAKE_BUILD_TYPE=Release
+patchfiles          clang.patch \
+                    cmake_minimum_required.patch
+
+cmake.build_type    Release
diff --git a/science/SoapyRTLSDR/files/clang.patch b/science/SoapyRTLSDR/files/clang.patch
new file mode 100644
index 00000000000..ecbf91a86d4
--- /dev/null
+++ b/science/SoapyRTLSDR/files/clang.patch
@@ -0,0 +1,35 @@
+Also use formerly gcc-only flags with clang:
+
+https://github.com/pothosware/SoapyRTLSDR/commit/448c9d0d326c2600905b7ce84222ff9d72ba2189
+--- CMakeLists.txt.orig
++++ CMakeLists.txt
+@@ -1,7 +1,7 @@
+ ########################################################################
+ # Build Soapy SDR support module for RTL-SDR Devices
+ ########################################################################
+-cmake_minimum_required(VERSION 2.8.7)
++cmake_minimum_required(VERSION 2.8.12)
+ project(SoapyRTLSDR CXX)
+ 
+ find_package(SoapySDR "0.4.0" NO_MODULE REQUIRED)
+@@ -22,7 +22,7 @@
+ include_directories(${RTLSDR_INCLUDE_DIRS})
+ 
+ #enable c++11 features
+-if(CMAKE_COMPILER_IS_GNUCXX)
++if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
+ 
+     #C++11 is a required language feature for this project
+     include(CheckCXXCompilerFlag)
+@@ -37,9 +37,8 @@
+     list(APPEND RTLSDR_LIBRARIES -pthread)
+ 
+     #disable warnings for unused parameters
+-    add_definitions(-Wno-unused-parameter)
+-
+-endif(CMAKE_COMPILER_IS_GNUCXX)
++    add_compile_options(-Wall -Wextra -Wno-unused-parameter)
++endif()
+ 
+ if (APPLE)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wc++11-extensions")
diff --git a/science/SoapyRTLSDR/files/cmake_minimum_required.patch b/science/SoapyRTLSDR/files/cmake_minimum_required.patch
new file mode 100644
index 00000000000..491f5d66d69
--- /dev/null
+++ b/science/SoapyRTLSDR/files/cmake_minimum_required.patch
@@ -0,0 +1,23 @@
+Fix configuration with cmake >= 4:
+
+Compatibility with CMake < 3.5 has been removed from CMake.
+
+Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
+to tell CMake that the project requires at least <min> but has been updated
+to work with policies introduced by <max> or earlier.
+
+Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.
+
+https://github.com/pothosware/SoapyRTLSDR/issues/81
+https://github.com/pothosware/SoapyRTLSDR/commit/bb2d1511b957138051764c9193a3d6971e912b85
+--- CMakeLists.txt.orig
++++ CMakeLists.txt
+@@ -1,7 +1,7 @@
+ ########################################################################
+ # Build Soapy SDR support module for RTL-SDR Devices
+ ########################################################################
+-cmake_minimum_required(VERSION 2.8.12)
++cmake_minimum_required(VERSION 2.8.12...3.10)
+ project(SoapyRTLSDR CXX)
+ 
+ find_package(SoapySDR "0.4.0" NO_MODULE REQUIRED)