3.12.1 Warning: type of ‘lsame_’ does not match original declaration

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With GCC 11.3.0

[100%] Built target lapacke_64_obj
[100%] Linking C shared library ../lib/liblapacke.so
/MyPkgBuild/lapack/src/lapack/LAPACKE/include/lapack.h:138:16: warning: type of ‘lsame_’ does not match original declaration [-Wlto-type-mismatch]
  138 | lapack_logical LAPACK_lsame_base( const char* ca,  const char* cb
      |                ^
/MyPkgBuild/lapack/src/lapack/LAPACKE/include/lapack.h:138:16: note: return value type mismatch
  138 | lapack_logical LAPACK_lsame_base( const char* ca,  const char* cb
      |                ^
/MyPkgBuild/lapack/src/lapack/LAPACKE/include/lapack.h:138:16: note: type ‘int32_t’ should match type ‘int64_t’
/MyPkgBuild/lapack/src/lapack/LAPACKE/include/lapack.h:138:16: note: ‘lsame_’ was previously declared here
/MyPkgBuild/lapack/src/lapack/LAPACKE/include/lapack.h:138:16: note: code may be misoptimized unless ‘-fno-strict-aliasing’ is used
[100%] Built target lapacke

Build command:

build() {
  cmake -B build -S $pkgbase \
    -DCMAKE_SKIP_RPATH=ON \
    -DBUILD_SHARED_LIBS=ON \
    -DBUILD_TESTING=OFF \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_Fortran_COMPILER=/usr/bin/gfortran-11 \
    -DLAPACKE_WITH_TMG=ON \
    -DCBLAS=ON
  cmake --build build

  cmake -B build64 -S $pkgbase \
    -DCMAKE_SKIP_RPATH=ON \
    -DBUILD_SHARED_LIBS=ON \
    -DBUILD_TESTING=OFF \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_Fortran_COMPILER=/usr/bin/gfortran-11 \
    -DLAPACKE_WITH_TMG=ON \
    -DCBLAS=ON \
    -DBUILD_INDEX64=ON
  cmake --build build64
}

[martin-frbg]

This comes about because LAPACKE/include/lapack.h has the prototypes for LSAME after the ifdefs surrounding the exact type of lapack_logical (so it either returns an int32 or int64) but before the ifdef that defines the API_SUFFIX macros for adding the optional _64 postfix to the symbol name. (And accordingly only LAPACK_GLOBAL(lsame...) rather than LAPACK_GLOBAL_SUFFIX(lsame...) .)
This makes it look like somebody was undecided whether there should be a single LSAME handling string comparisons in both 32-bit and 64-bit index cases, or separate LSAME and LSAME_64 like for all other LAPACK functions.