From 7d60bfd23433c102fcd1e19fb6ad977fa4b53517 Mon Sep 17 00:00:00 2001
From: Andreas Sturmlechner <asturm@gentoo.org>
Date: Thu, 27 Nov 2025 21:36:47 +0100
Subject: [PATCH] Fix build with CMake 4, fix CMP0115/CMP0127 warnings

Source: https://sourceforge.net/p/soxr/code/merge-requests/6/

But max cranked up to 3.31 for who knows when we will look at it again.

Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>
---
 CMakeLists.txt          |  4 ++--
 examples/CMakeLists.txt |  8 ++++----
 src/CMakeLists.txt      | 30 +++++++++++++++---------------
 3 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ee48f6c..0e4db65 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # SoX Resampler Library       Copyright (c) 2007-18 robs@users.sourceforge.net
 # Licence for this file: LGPL v2.1                  See LICENCE for details.
 
-cmake_minimum_required (VERSION 3.1 FATAL_ERROR)
+cmake_minimum_required (VERSION 3.1...3.31)
 
 project (soxr C)
 set (DESCRIPTION_SUMMARY
@@ -70,7 +70,7 @@ cmake_dependent_option (WITH_AVFFT
   "Use libavcodec (LGPL) for HQ SIMD DFT." OFF
   "WITH_CR32S;NOT WITH_PFFFT" OFF)
 cmake_dependent_option (BUILD_LSR_TESTS "Build LSR tests." OFF
-  "UNIX;NOT CMAKE_CROSSCOMPILING;EXISTS ${PROJECT_SOURCE_DIR}/lsr-tests;WITH_LSR_BINDINGS" OFF)
+  "UNIX;NOT CMAKE_CROSSCOMPILING;EXISTS \"${PROJECT_SOURCE_DIR}/lsr-tests\";WITH_LSR_BINDINGS" OFF)
 
 option (WITH_HI_PREC_CLOCK "Enable high-precision time-base." ON)
 option (WITH_FLOAT_STD_PREC_CLOCK
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index c8c17c9..acf6d4e 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -6,16 +6,16 @@ set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${PROJECT_CXX_FLAGS}")
 link_libraries (${PROJECT_NAME} ${LIBM_LIBRARIES})
 
 if (${BUILD_EXAMPLES} OR ${BUILD_TESTS})
-  set (SOURCES 3-options-input-fn)
+  set (SOURCES 3-options-input-fn.c)
   if (${WITH_LSR_BINDINGS})
-    set (LSR_SOURCES 1a-lsr)
+    set (LSR_SOURCES 1a-lsr.c)
   endif ()
 endif ()
 
 if (${BUILD_EXAMPLES})
-  list (APPEND SOURCES 1-single-block 2-stream 4-split-channels)
+  list (APPEND SOURCES 1-single-block.c 2-stream.C 4-split-channels.c)
   if (${WITH_VR32})
-    list (APPEND SOURCES 5-variable-rate)
+    list (APPEND SOURCES 5-variable-rate.c)
   endif ()
 endif ()
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index bb01a0d..24ecd5d 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -24,40 +24,40 @@ add_definitions (${PROJECT_C_FLAGS} -DSOXR_LIB)
 
 # Libsoxr configuration:
 
-set (RDFT32 fft4g32)
+set (RDFT32 fft4g32.c)
 if (AVCODEC_FOUND)
-  set (RDFT32 avfft32)
-  set (RDFT32S avfft32s)
+  set (RDFT32 avfft32.c)
+  set (RDFT32S avfft32s.c)
 elseif (WITH_PFFFT)
-  #set (RDFT32 pffft32)
-  set (RDFT32S pffft32s)
+  #set (RDFT32 pffft32.c)
+  set (RDFT32S pffft32s.c)
 elseif (WITH_CR32S)
-  set (RDFT32S fft4g32s)
+  set (RDFT32S fft4g32s.c)
   if (NOT WITH_CR32)
-    list (APPEND RDFT32S fft4g32)
+    list (APPEND RDFT32S fft4g32.c)
   endif ()
 endif ()
 
-set (SOURCES ${PROJECT_NAME}.c data-io)
+set (SOURCES ${PROJECT_NAME}.c data-io.c)
 
 if (WITH_CR32 OR WITH_CR32S OR WITH_CR64 OR WITH_CR64S)
-  list (APPEND SOURCES dbesi0 filter fft4g64 cr)
+  list (APPEND SOURCES dbesi0.c filter.c fft4g64.c cr.c)
 endif ()
 
 if (WITH_CR32)
-  list (APPEND SOURCES cr32 ${RDFT32})
+  list (APPEND SOURCES cr32.c ${RDFT32})
 endif ()
 
 if (WITH_CR64)
-  list (APPEND SOURCES cr64)
+  list (APPEND SOURCES cr64.c)
 endif ()
 
 if (WITH_VR32)
-  list (APPEND SOURCES vr32)
+  list (APPEND SOURCES vr32.c)
 endif ()
 
 if (WITH_CR32S)
-  foreach (source cr32s ${RDFT32S} util32s)
+  foreach (source cr32s.c ${RDFT32S} util32s.c)
     list (APPEND SOURCES ${source})
     set_property (SOURCE ${source}
         APPEND_STRING PROPERTY COMPILE_FLAGS ${SIMD32_C_FLAGS})
@@ -65,7 +65,7 @@ if (WITH_CR32S)
 endif ()
 
 if (WITH_CR64S)
-  foreach (source cr64s pffft64s util64s)
+  foreach (source cr64s.c pffft64s.c util64s.c)
     list (APPEND SOURCES ${source})
     set_property (SOURCE ${source}
         APPEND_STRING PROPERTY COMPILE_FLAGS ${SIMD64_C_FLAGS})
@@ -100,7 +100,7 @@ if (WITH_LSR_BINDINGS)
   set (LSR ${PROJECT_NAME}-lsr)
   set (LSR_SO_VERSION 0.1.9)
   set (LSR_SO_VERSION_MAJOR 0)
-  add_library (${LSR} ${LIB_TYPE} ${LSR})
+  add_library (${LSR} ${LIB_TYPE} ${LSR}.c)
   target_link_libraries (${LSR} ${PROJECT_NAME})
   set_target_properties (${LSR} PROPERTIES
     VERSION "${LSR_SO_VERSION}"
-- 
2.52.0