Cmake-4 support for nvtt

Fix nvtt build to support cmake-4, while at it also fix other
related outstanding cmake issues in nvtt.

Fixes: #7538
Fixes: #7764
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>

libraries/source/nvtt/build.sh

@@ -6,7 +6,7 @@ set -e
 cd "$(dirname "$0")"
 
 PV=28209
-LIB_VERSION=${PV}
+LIB_VERSION=${PV}+wfg1
 
 fetch()
 {
@@ -46,6 +46,11 @@ fi
 rm -Rf nvtt-${PV}
 "${TAR}" xf nvtt-${PV}.tar.xz
 
+# patch
+patch -d nvtt-${PV} -p1 <patches/0001-Don-t-overspecify-flags.patch
+patch -d nvtt-${PV} -p1 <patches/0002-Bump-cmake-min-version-to-3.10.patch
+patch -d nvtt-${PV} -p1 <patches/0003-Use-execute_process-insted-of-exec_program.patch
+
 # build
 (
 	cd nvtt-${PV}

libraries/source/nvtt/patches/0001-Don-t-overspecify-flags.patch

@@ -0,0 +1,41 @@
+From fee966a8d44afc26005df9b539b16a5ee7f99107 Mon Sep 17 00:00:00 2001
+From: Ralph Sennhauser <ralph.sennhauser@gmail.com>
+Date: Sun, 27 Apr 2025 07:53:42 +0200
+Subject: [PATCH] Don't overspecify flags
+
+Cmake picks flags like CFALGS CXXFLAGS and LDFLAGS from environment. The
+use of CMAKE_LINK_FLAGS even triggers a warning.
+
+Fixes: #7538
+Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
+---
+ build.sh | 6 ------
+ 1 file changed, 6 deletions(-)
+
+diff --git a/build.sh b/build.sh
+index dae3bcf..935c6ff 100755
+--- a/build.sh
++++ b/build.sh
+@@ -29,9 +29,6 @@ if [ "$(uname -s)" = "Darwin" ]; then
+   # but they're not as flexible for cross-compiling
+   # Disable png support (avoids some conflicts with MacPorts)
+   cmake .. \
+-    -DCMAKE_LINK_FLAGS="$LDFLAGS" \
+-    -DCMAKE_C_FLAGS="$CFLAGS" \
+-    -DCMAKE_CXX_FLAGS="$CXXFLAGS" \
+     -DCMAKE_BUILD_TYPE=Release \
+     $CMAKE_FLAGS \
+     -DBINDIR=bin \
+@@ -40,9 +37,6 @@ if [ "$(uname -s)" = "Darwin" ]; then
+     -G "Unix Makefiles"
+ else
+   cmake .. \
+-    -DCMAKE_LINK_FLAGS="$LDFLAGS" \
+-    -DCMAKE_C_FLAGS="$CFLAGS" \
+-    -DCMAKE_CXX_FLAGS="$CXXFLAGS" \
+     -DCMAKE_BUILD_TYPE=Release \
+     -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
+     $CMAKE_FLAGS \
+-- 
+2.49.0
+

libraries/source/nvtt/patches/0002-Bump-cmake-min-version-to-3.10.patch

@@ -0,0 +1,27 @@
+From cc07839eff9be49e2c3df4e68ce18f3134caafd2 Mon Sep 17 00:00:00 2001
+From: Ralph Sennhauser <ralph.sennhauser@gmail.com>
+Date: Sun, 27 Apr 2025 07:57:10 +0200
+Subject: [PATCH] Bump cmake min version to 3.10
+
+Cmake-4 removes support for cmake < cmake-3.5 and deprecates cmake <
+cmake-3.10
+
+Fixes: #7764
+Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
+---
+ src/CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index b18b791..b517b52 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -1,4 +1,4 @@
+-CMAKE_MINIMUM_REQUIRED(VERSION 2.8.0)
++CMAKE_MINIMUM_REQUIRED(VERSION 3.10)
+ PROJECT(NV)
+ ENABLE_TESTING()
+ 
+-- 
+2.49.0
+

libraries/source/nvtt/patches/0003-Use-execute_process-insted-of-exec_program.patch

@@ -0,0 +1,26 @@
+From 324f50d1ccf5ca38e0f3817c8d18208bd72e01f2 Mon Sep 17 00:00:00 2001
+From: Ralph Sennhauser <ralph.sennhauser@gmail.com>
+Date: Sun, 27 Apr 2025 08:05:59 +0200
+Subject: [PATCH] Use execute_process insted of exec_program
+
+Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
+---
+ src/cmake/DetermineProcessor.cmake | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/cmake/DetermineProcessor.cmake b/src/cmake/DetermineProcessor.cmake
+index 7db7a95..13d39de 100644
+--- a/src/cmake/DetermineProcessor.cmake
++++ b/src/cmake/DetermineProcessor.cmake
+@@ -8,7 +8,7 @@ IF(UNIX)
+ 		#EXEC_PROGRAM(uname ARGS -p OUTPUT_VARIABLE NV_SYSTEM_PROCESSOR RETURN_VALUE val)
+ 
+ 		#IF("${val}" GREATER 0 OR NV_SYSTEM_PROCESSOR STREQUAL "unknown")
+-			EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE NV_SYSTEM_PROCESSOR RETURN_VALUE val)
++		execute_process(COMMAND uname -m OUTPUT_VARIABLE NV_SYSTEM_PROCESSOR ERROR_VARIABLE val)
+ 		#ENDIF("${val}" GREATER 0 OR NV_SYSTEM_PROCESSOR STREQUAL "unknown")
+ 
+ 		IF(NV_SYSTEM_PROCESSOR STREQUAL "Power Macintosh")
+-- 
+2.49.0
+