Test fails to pass when building with GCC 15

[dbermond]

When using GCC 15, it builds fine but the tests fails to pass.

Tests output: https://pastebin.com/XU5nRrTf

When building with GCC 14, the tests passes fine.

Commands used:

$ cmake -B build -S OpenJPH-0.21.3 \
        -G 'Unix Makefiles' \
        -DCMAKE_BUILD_TYPE:STRING='None' \
        -DCMAKE_INSTALL_PREFIX:PATH='/usr' \
        -DOJPH_DISABLE_SSSE3:BOOL='ON' \
        -DOJPH_DISABLE_SSE4:BOOL='ON' \
        -DOJPH_DISABLE_AVX:BOOL='ON' \
        -DOJPH_DISABLE_AVX2:BOOL='ON' \
        -DOJPH_DISABLE_AVX512:BOOL='ON' \
        -DOJPH_BUILD_TESTS:BOOL='ON' \
        -Wno-dev
$ cmake --build build
$ ctest --test-dir build --output-on-failure

System Information:

• OS: Arch Linux
• CMake: 4.0.2
• Compiler: gcc 15.1.1
• libtiff: 4.7.0